./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/01_inc.i --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/pthread-ext/01_inc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dc44c09c63836e77e2249e5abf8328354015a2494c028ff1b2e04f58fa741976 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:12:38,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:12:38,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:12:38,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:12:38,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:12:38,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:12:38,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:12:38,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:12:38,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:12:38,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:12:38,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:12:38,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:12:38,171 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:12:38,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:12:38,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:12:38,171 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:12:38,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:12:38,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:12:38,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:12:38,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:12:38,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:12:38,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:12:38,173 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:12:38,174 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:12:38,174 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:12:38,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:12:38,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:12:38,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:12:38,175 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:12:38,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:12:38,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:12:38,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:12:38,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:12:38,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:12:38,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:12:38,176 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:12:38,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:12:38,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:12:38,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:12:38,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:12:38,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:12:38,178 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc44c09c63836e77e2249e5abf8328354015a2494c028ff1b2e04f58fa741976 [2024-11-16 23:12:38,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:12:38,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:12:38,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:12:38,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:12:38,404 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:12:38,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/01_inc.i [2024-11-16 23:12:40,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:12:40,785 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:12:40,786 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/01_inc.i [2024-11-16 23:12:40,811 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897ea2633/f221dfcc2bd146d991e20e6a027ccc7f/FLAG3b772a121 [2024-11-16 23:12:40,826 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897ea2633/f221dfcc2bd146d991e20e6a027ccc7f [2024-11-16 23:12:40,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:12:40,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:12:40,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:12:40,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:12:40,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:12:40,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:40" (1/1) ... [2024-11-16 23:12:40,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19803c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:40, skipping insertion in model container [2024-11-16 23:12:40,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:40" (1/1) ... [2024-11-16 23:12:40,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:12:41,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:12:41,184 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:12:41,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:12:41,275 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:12:41,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41 WrapperNode [2024-11-16 23:12:41,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:12:41,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:12:41,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:12:41,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:12:41,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,315 INFO L138 Inliner]: procedures = 171, calls = 15, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 86 [2024-11-16 23:12:41,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:12:41,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:12:41,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:12:41,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:12:41,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,331 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:12:41,335 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:12:41,336 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:12:41,336 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:12:41,336 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (1/1) ... [2024-11-16 23:12:41,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:12:41,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:12:41,371 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 23:12:41,373 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 23:12:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-16 23:12:41,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-16 23:12:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 23:12:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:12:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:12:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 23:12:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:12:41,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:12:41,418 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 23:12:41,524 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:12:41,526 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:12:41,701 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:12:41,705 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:12:41,840 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:12:41,840 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:12:41,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:12:41 BoogieIcfgContainer [2024-11-16 23:12:41,841 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:12:41,842 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:12:41,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:12:41,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:12:41,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:12:40" (1/3) ... [2024-11-16 23:12:41,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55933d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:12:41, skipping insertion in model container [2024-11-16 23:12:41,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:41" (2/3) ... [2024-11-16 23:12:41,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55933d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:12:41, skipping insertion in model container [2024-11-16 23:12:41,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:12:41" (3/3) ... [2024-11-16 23:12:41,850 INFO L112 eAbstractionObserver]: Analyzing ICFG 01_inc.i [2024-11-16 23:12:41,868 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:12:41,869 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-16 23:12:41,869 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:12:41,917 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:41,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 56 transitions, 116 flow [2024-11-16 23:12:41,970 INFO L124 PetriNetUnfolderBase]: 3/66 cut-off events. [2024-11-16 23:12:41,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:41,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 66 events. 3/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 43. Up to 4 conditions per place. [2024-11-16 23:12:41,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 56 transitions, 116 flow [2024-11-16 23:12:41,978 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 56 transitions, 116 flow [2024-11-16 23:12:41,985 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:41,991 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;@6e4399fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:41,992 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-16 23:12:42,002 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:42,002 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-11-16 23:12:42,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:42,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:42,003 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] [2024-11-16 23:12:42,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:12:42,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:42,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1986024364, now seen corresponding path program 1 times [2024-11-16 23:12:42,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:42,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870692553] [2024-11-16 23:12:42,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:42,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:42,178 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 23:12:42,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:42,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870692553] [2024-11-16 23:12:42,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870692553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:42,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:42,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:12:42,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307885565] [2024-11-16 23:12:42,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:42,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:12:42,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:42,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:12:42,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:12:42,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 56 [2024-11-16 23:12:42,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 116 flow. Second operand has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 23:12:42,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:42,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 56 [2024-11-16 23:12:42,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:42,248 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2024-11-16 23:12:42,248 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:12:42,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 12/57 useless extension candidates. Maximal degree in co-relation 35. Up to 6 conditions per place. [2024-11-16 23:12:42,249 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 5 selfloop transitions, 0 changer transitions 0/44 dead transitions. [2024-11-16 23:12:42,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 102 flow [2024-11-16 23:12:42,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:12:42,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:12:42,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 98 transitions. [2024-11-16 23:12:42,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.875 [2024-11-16 23:12:42,287 INFO L175 Difference]: Start difference. First operand has 57 places, 56 transitions, 116 flow. Second operand 2 states and 98 transitions. [2024-11-16 23:12:42,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 102 flow [2024-11-16 23:12:42,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 102 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:42,293 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 92 flow [2024-11-16 23:12:42,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-11-16 23:12:42,300 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -10 predicate places. [2024-11-16 23:12:42,300 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 92 flow [2024-11-16 23:12:42,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 23:12:42,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:42,301 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] [2024-11-16 23:12:42,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:12:42,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:12:42,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:42,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1603924584, now seen corresponding path program 1 times [2024-11-16 23:12:42,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:42,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118089474] [2024-11-16 23:12:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:42,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:42,411 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 23:12:42,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:42,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118089474] [2024-11-16 23:12:42,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118089474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:42,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:42,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:12:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616335337] [2024-11-16 23:12:42,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:42,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:12:42,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:42,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:12:42,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:12:42,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 56 [2024-11-16 23:12:42,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 23:12:42,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:42,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 56 [2024-11-16 23:12:42,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:42,451 INFO L124 PetriNetUnfolderBase]: 1/47 cut-off events. [2024-11-16 23:12:42,452 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:12:42,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 47 events. 1/47 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 59. Up to 6 conditions per place. [2024-11-16 23:12:42,452 INFO L140 encePairwiseOnDemand]: 51/56 looper letters, 7 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2024-11-16 23:12:42,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 42 transitions, 108 flow [2024-11-16 23:12:42,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:12:42,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:12:42,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2024-11-16 23:12:42,454 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2024-11-16 23:12:42,454 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 92 flow. Second operand 3 states and 117 transitions. [2024-11-16 23:12:42,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 42 transitions, 108 flow [2024-11-16 23:12:42,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 42 transitions, 108 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:42,456 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 94 flow [2024-11-16 23:12:42,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2024-11-16 23:12:42,457 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -10 predicate places. [2024-11-16 23:12:42,457 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 94 flow [2024-11-16 23:12:42,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 23:12:42,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:42,457 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:42,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:12:42,458 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:12:42,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:42,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1319024750, now seen corresponding path program 1 times [2024-11-16 23:12:42,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:42,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115335202] [2024-11-16 23:12:42,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:42,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:42,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:12:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:42,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:12:42,512 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:12:42,512 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-16 23:12:42,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-16 23:12:42,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-16 23:12:42,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-16 23:12:42,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-16 23:12:42,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-16 23:12:42,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2024-11-16 23:12:42,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-16 23:12:42,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-16 23:12:42,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-16 23:12:42,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-16 23:12:42,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-16 23:12:42,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-16 23:12:42,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-16 23:12:42,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-16 23:12:42,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-16 23:12:42,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-16 23:12:42,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-16 23:12:42,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-16 23:12:42,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-16 23:12:42,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-16 23:12:42,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:12:42,519 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-16 23:12:42,523 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:12:42,524 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:12:42,541 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:42,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 88 transitions, 186 flow [2024-11-16 23:12:42,558 INFO L124 PetriNetUnfolderBase]: 5/110 cut-off events. [2024-11-16 23:12:42,559 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:12:42,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 110 events. 5/110 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 247 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 74. Up to 6 conditions per place. [2024-11-16 23:12:42,560 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 88 transitions, 186 flow [2024-11-16 23:12:42,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 88 transitions, 186 flow [2024-11-16 23:12:42,562 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:42,565 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;@6e4399fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:42,565 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-16 23:12:42,569 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:42,569 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-11-16 23:12:42,569 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:42,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:42,570 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] [2024-11-16 23:12:42,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-16 23:12:42,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:42,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2070866452, now seen corresponding path program 1 times [2024-11-16 23:12:42,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:42,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192680313] [2024-11-16 23:12:42,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:42,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:42,590 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 23:12:42,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:42,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192680313] [2024-11-16 23:12:42,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192680313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:42,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:42,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:12:42,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415715520] [2024-11-16 23:12:42,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:42,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:12:42,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:42,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:12:42,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:12:42,593 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 88 [2024-11-16 23:12:42,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 186 flow. Second operand has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 23:12:42,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:42,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 88 [2024-11-16 23:12:42,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:42,640 INFO L124 PetriNetUnfolderBase]: 26/201 cut-off events. [2024-11-16 23:12:42,641 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-16 23:12:42,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 201 events. 26/201 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 783 event pairs, 20 based on Foata normal form. 62/233 useless extension candidates. Maximal degree in co-relation 189. Up to 51 conditions per place. [2024-11-16 23:12:42,650 INFO L140 encePairwiseOnDemand]: 72/88 looper letters, 10 selfloop transitions, 0 changer transitions 0/69 dead transitions. [2024-11-16 23:12:42,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 69 transitions, 168 flow [2024-11-16 23:12:42,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:12:42,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:12:42,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2024-11-16 23:12:42,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8522727272727273 [2024-11-16 23:12:42,656 INFO L175 Difference]: Start difference. First operand has 90 places, 88 transitions, 186 flow. Second operand 2 states and 150 transitions. [2024-11-16 23:12:42,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 69 transitions, 168 flow [2024-11-16 23:12:42,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 69 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:42,657 INFO L231 Difference]: Finished difference. Result has 73 places, 69 transitions, 148 flow [2024-11-16 23:12:42,657 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=148, PETRI_PLACES=73, PETRI_TRANSITIONS=69} [2024-11-16 23:12:42,658 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -17 predicate places. [2024-11-16 23:12:42,658 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 148 flow [2024-11-16 23:12:42,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 23:12:42,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:42,659 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] [2024-11-16 23:12:42,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:12:42,662 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-16 23:12:42,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:42,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1532815928, now seen corresponding path program 1 times [2024-11-16 23:12:42,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:42,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514888522] [2024-11-16 23:12:42,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:42,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:42,704 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 23:12:42,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:42,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514888522] [2024-11-16 23:12:42,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514888522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:42,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:42,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:12:42,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300614795] [2024-11-16 23:12:42,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:42,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:12:42,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:42,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:12:42,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:12:42,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 88 [2024-11-16 23:12:42,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states 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 23:12:42,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:42,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 88 [2024-11-16 23:12:42,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:42,857 INFO L124 PetriNetUnfolderBase]: 128/491 cut-off events. [2024-11-16 23:12:42,859 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-16 23:12:42,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 491 events. 128/491 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2728 event pairs, 48 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 783. Up to 184 conditions per place. [2024-11-16 23:12:42,866 INFO L140 encePairwiseOnDemand]: 72/88 looper letters, 31 selfloop transitions, 12 changer transitions 0/88 dead transitions. [2024-11-16 23:12:42,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 88 transitions, 277 flow [2024-11-16 23:12:42,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:12:42,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:12:42,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2024-11-16 23:12:42,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7234848484848485 [2024-11-16 23:12:42,869 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 148 flow. Second operand 3 states and 191 transitions. [2024-11-16 23:12:42,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 88 transitions, 277 flow [2024-11-16 23:12:42,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 88 transitions, 277 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:42,873 INFO L231 Difference]: Finished difference. Result has 77 places, 81 transitions, 252 flow [2024-11-16 23:12:42,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=77, PETRI_TRANSITIONS=81} [2024-11-16 23:12:42,873 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -13 predicate places. [2024-11-16 23:12:42,874 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 81 transitions, 252 flow [2024-11-16 23:12:42,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states 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 23:12:42,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:42,875 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] [2024-11-16 23:12:42,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:12:42,875 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-16 23:12:42,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:42,875 INFO L85 PathProgramCache]: Analyzing trace with hash 200726145, now seen corresponding path program 1 times [2024-11-16 23:12:42,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:42,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300992375] [2024-11-16 23:12:42,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:42,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:42,934 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 23:12:42,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:42,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300992375] [2024-11-16 23:12:42,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300992375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:42,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:42,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:12:42,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750183464] [2024-11-16 23:12:42,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:42,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:12:42,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:42,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:12:42,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:12:42,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 88 [2024-11-16 23:12:42,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 81 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states 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 23:12:42,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:42,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 88 [2024-11-16 23:12:42,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:43,087 INFO L124 PetriNetUnfolderBase]: 164/576 cut-off events. [2024-11-16 23:12:43,088 INFO L125 PetriNetUnfolderBase]: For 225/234 co-relation queries the response was YES. [2024-11-16 23:12:43,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1194 conditions, 576 events. 164/576 cut-off events. For 225/234 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3290 event pairs, 73 based on Foata normal form. 4/520 useless extension candidates. Maximal degree in co-relation 1187. Up to 259 conditions per place. [2024-11-16 23:12:43,097 INFO L140 encePairwiseOnDemand]: 80/88 looper letters, 30 selfloop transitions, 10 changer transitions 0/93 dead transitions. [2024-11-16 23:12:43,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 93 transitions, 381 flow [2024-11-16 23:12:43,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:12:43,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:12:43,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2024-11-16 23:12:43,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-16 23:12:43,101 INFO L175 Difference]: Start difference. First operand has 77 places, 81 transitions, 252 flow. Second operand 3 states and 187 transitions. [2024-11-16 23:12:43,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 93 transitions, 381 flow [2024-11-16 23:12:43,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 93 transitions, 349 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:12:43,107 INFO L231 Difference]: Finished difference. Result has 79 places, 89 transitions, 314 flow [2024-11-16 23:12:43,107 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=79, PETRI_TRANSITIONS=89} [2024-11-16 23:12:43,108 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -11 predicate places. [2024-11-16 23:12:43,109 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 89 transitions, 314 flow [2024-11-16 23:12:43,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states 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 23:12:43,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:43,109 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:43,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:12:43,110 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-16 23:12:43,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:43,110 INFO L85 PathProgramCache]: Analyzing trace with hash -2064212811, now seen corresponding path program 1 times [2024-11-16 23:12:43,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:43,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837034492] [2024-11-16 23:12:43,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:43,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:43,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:12:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:43,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:12:43,140 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:12:43,140 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-16 23:12:43,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-16 23:12:43,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-16 23:12:43,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-16 23:12:43,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-16 23:12:43,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-16 23:12:43,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-11-16 23:12:43,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-16 23:12:43,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-16 23:12:43,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-16 23:12:43,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-16 23:12:43,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-16 23:12:43,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-16 23:12:43,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-16 23:12:43,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-16 23:12:43,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-16 23:12:43,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-16 23:12:43,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-16 23:12:43,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:12:43,146 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-16 23:12:43,147 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:12:43,147 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:12:43,174 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:43,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 120 transitions, 258 flow [2024-11-16 23:12:43,197 INFO L124 PetriNetUnfolderBase]: 7/154 cut-off events. [2024-11-16 23:12:43,201 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:12:43,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 154 events. 7/154 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 424 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 114. Up to 8 conditions per place. [2024-11-16 23:12:43,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 120 transitions, 258 flow [2024-11-16 23:12:43,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 120 transitions, 258 flow [2024-11-16 23:12:43,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:43,204 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;@6e4399fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:43,204 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-16 23:12:43,210 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:43,210 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-11-16 23:12:43,210 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:43,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:43,211 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] [2024-11-16 23:12:43,211 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-16 23:12:43,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:43,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1377773675, now seen corresponding path program 1 times [2024-11-16 23:12:43,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:43,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058820538] [2024-11-16 23:12:43,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:43,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:43,233 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 23:12:43,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:43,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058820538] [2024-11-16 23:12:43,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058820538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:43,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:43,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:12:43,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236565021] [2024-11-16 23:12:43,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:43,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:12:43,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:43,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:12:43,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:12:43,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 120 [2024-11-16 23:12:43,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 120 transitions, 258 flow. Second operand has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 23:12:43,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:43,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 120 [2024-11-16 23:12:43,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:43,427 INFO L124 PetriNetUnfolderBase]: 247/993 cut-off events. [2024-11-16 23:12:43,428 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-11-16 23:12:43,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1490 conditions, 993 events. 247/993 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7087 event pairs, 220 based on Foata normal form. 312/1149 useless extension candidates. Maximal degree in co-relation 1071. Up to 376 conditions per place. [2024-11-16 23:12:43,443 INFO L140 encePairwiseOnDemand]: 97/120 looper letters, 15 selfloop transitions, 0 changer transitions 0/94 dead transitions. [2024-11-16 23:12:43,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 94 transitions, 236 flow [2024-11-16 23:12:43,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:12:43,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:12:43,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 202 transitions. [2024-11-16 23:12:43,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8416666666666667 [2024-11-16 23:12:43,449 INFO L175 Difference]: Start difference. First operand has 123 places, 120 transitions, 258 flow. Second operand 2 states and 202 transitions. [2024-11-16 23:12:43,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 94 transitions, 236 flow [2024-11-16 23:12:43,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 94 transitions, 234 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:43,452 INFO L231 Difference]: Finished difference. Result has 99 places, 94 transitions, 204 flow [2024-11-16 23:12:43,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=204, PETRI_PLACES=99, PETRI_TRANSITIONS=94} [2024-11-16 23:12:43,455 INFO L277 CegarLoopForPetriNet]: 123 programPoint places, -24 predicate places. [2024-11-16 23:12:43,456 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 94 transitions, 204 flow [2024-11-16 23:12:43,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 23:12:43,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:43,456 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:43,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:12:43,456 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-16 23:12:43,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:43,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1190557063, now seen corresponding path program 1 times [2024-11-16 23:12:43,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:43,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061567279] [2024-11-16 23:12:43,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:43,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:43,494 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 23:12:43,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:43,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061567279] [2024-11-16 23:12:43,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061567279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:43,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:43,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:12:43,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288771022] [2024-11-16 23:12:43,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:43,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:12:43,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:43,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:12:43,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:12:43,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 120 [2024-11-16 23:12:43,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states 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 23:12:43,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:43,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 120 [2024-11-16 23:12:43,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:44,552 INFO L124 PetriNetUnfolderBase]: 3439/7945 cut-off events. [2024-11-16 23:12:44,556 INFO L125 PetriNetUnfolderBase]: For 451/451 co-relation queries the response was YES. [2024-11-16 23:12:44,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13719 conditions, 7945 events. 3439/7945 cut-off events. For 451/451 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 72623 event pairs, 1298 based on Foata normal form. 0/7059 useless extension candidates. Maximal degree in co-relation 13713. Up to 3764 conditions per place. [2024-11-16 23:12:44,670 INFO L140 encePairwiseOnDemand]: 96/120 looper letters, 47 selfloop transitions, 18 changer transitions 0/123 dead transitions. [2024-11-16 23:12:44,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 123 transitions, 402 flow [2024-11-16 23:12:44,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:12:44,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:12:44,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2024-11-16 23:12:44,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7055555555555556 [2024-11-16 23:12:44,675 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 204 flow. Second operand 3 states and 254 transitions. [2024-11-16 23:12:44,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 123 transitions, 402 flow [2024-11-16 23:12:44,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 123 transitions, 402 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:44,678 INFO L231 Difference]: Finished difference. Result has 103 places, 112 transitions, 360 flow [2024-11-16 23:12:44,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=103, PETRI_TRANSITIONS=112} [2024-11-16 23:12:44,682 INFO L277 CegarLoopForPetriNet]: 123 programPoint places, -20 predicate places. [2024-11-16 23:12:44,682 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 112 transitions, 360 flow [2024-11-16 23:12:44,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states 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 23:12:44,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:44,683 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] [2024-11-16 23:12:44,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:12:44,683 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-16 23:12:44,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:44,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1183489598, now seen corresponding path program 1 times [2024-11-16 23:12:44,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:44,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439492674] [2024-11-16 23:12:44,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:44,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:44,718 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 23:12:44,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:44,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439492674] [2024-11-16 23:12:44,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439492674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:44,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:44,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:12:44,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747462826] [2024-11-16 23:12:44,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:44,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:12:44,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:12:44,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:12:44,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 120 [2024-11-16 23:12:44,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 112 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 23:12:44,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:44,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 120 [2024-11-16 23:12:44,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:46,044 INFO L124 PetriNetUnfolderBase]: 4449/10358 cut-off events. [2024-11-16 23:12:46,044 INFO L125 PetriNetUnfolderBase]: For 4834/5161 co-relation queries the response was YES. [2024-11-16 23:12:46,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23008 conditions, 10358 events. 4449/10358 cut-off events. For 4834/5161 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 99314 event pairs, 2177 based on Foata normal form. 59/9152 useless extension candidates. Maximal degree in co-relation 23000. Up to 5384 conditions per place. [2024-11-16 23:12:46,205 INFO L140 encePairwiseOnDemand]: 108/120 looper letters, 46 selfloop transitions, 20 changer transitions 0/138 dead transitions. [2024-11-16 23:12:46,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 138 transitions, 602 flow [2024-11-16 23:12:46,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:12:46,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:12:46,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2024-11-16 23:12:46,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7055555555555556 [2024-11-16 23:12:46,212 INFO L175 Difference]: Start difference. First operand has 103 places, 112 transitions, 360 flow. Second operand 3 states and 254 transitions. [2024-11-16 23:12:46,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 138 transitions, 602 flow [2024-11-16 23:12:46,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 138 transitions, 550 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:12:46,243 INFO L231 Difference]: Finished difference. Result has 105 places, 130 transitions, 510 flow [2024-11-16 23:12:46,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=510, PETRI_PLACES=105, PETRI_TRANSITIONS=130} [2024-11-16 23:12:46,244 INFO L277 CegarLoopForPetriNet]: 123 programPoint places, -18 predicate places. [2024-11-16 23:12:46,245 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 130 transitions, 510 flow [2024-11-16 23:12:46,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 23:12:46,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:46,245 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:46,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:12:46,245 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-16 23:12:46,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:46,246 INFO L85 PathProgramCache]: Analyzing trace with hash -323346479, now seen corresponding path program 1 times [2024-11-16 23:12:46,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:46,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030809829] [2024-11-16 23:12:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:46,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:12:46,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:46,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030809829] [2024-11-16 23:12:46,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030809829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:46,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:46,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:12:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680961693] [2024-11-16 23:12:46,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:46,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:12:46,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:46,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:12:46,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:12:46,312 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 120 [2024-11-16 23:12:46,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 130 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states 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 23:12:46,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:46,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 120 [2024-11-16 23:12:46,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:47,497 INFO L124 PetriNetUnfolderBase]: 5880/12877 cut-off events. [2024-11-16 23:12:47,497 INFO L125 PetriNetUnfolderBase]: For 10794/11399 co-relation queries the response was YES. [2024-11-16 23:12:47,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31976 conditions, 12877 events. 5880/12877 cut-off events. For 10794/11399 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 122699 event pairs, 2464 based on Foata normal form. 73/11103 useless extension candidates. Maximal degree in co-relation 31967. Up to 6940 conditions per place. [2024-11-16 23:12:47,585 INFO L140 encePairwiseOnDemand]: 108/120 looper letters, 59 selfloop transitions, 28 changer transitions 0/161 dead transitions. [2024-11-16 23:12:47,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 161 transitions, 843 flow [2024-11-16 23:12:47,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:12:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:12:47,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-11-16 23:12:47,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7027777777777777 [2024-11-16 23:12:47,586 INFO L175 Difference]: Start difference. First operand has 105 places, 130 transitions, 510 flow. Second operand 3 states and 253 transitions. [2024-11-16 23:12:47,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 161 transitions, 843 flow [2024-11-16 23:12:47,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 161 transitions, 787 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:12:47,622 INFO L231 Difference]: Finished difference. Result has 107 places, 154 transitions, 756 flow [2024-11-16 23:12:47,623 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=107, PETRI_TRANSITIONS=154} [2024-11-16 23:12:47,624 INFO L277 CegarLoopForPetriNet]: 123 programPoint places, -16 predicate places. [2024-11-16 23:12:47,624 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 154 transitions, 756 flow [2024-11-16 23:12:47,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states 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 23:12:47,624 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:47,624 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:47,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:12:47,625 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-16 23:12:47,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:47,625 INFO L85 PathProgramCache]: Analyzing trace with hash -753910693, now seen corresponding path program 1 times [2024-11-16 23:12:47,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:47,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073872944] [2024-11-16 23:12:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:47,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:47,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:12:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:47,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:12:47,647 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:12:47,647 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-16 23:12:47,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-11-16 23:12:47,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-11-16 23:12:47,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-11-16 23:12:47,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-11-16 23:12:47,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-11-16 23:12:47,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2024-11-16 23:12:47,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-11-16 23:12:47,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-11-16 23:12:47,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-11-16 23:12:47,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-11-16 23:12:47,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-11-16 23:12:47,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-11-16 23:12:47,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-11-16 23:12:47,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-11-16 23:12:47,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-11-16 23:12:47,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-11-16 23:12:47,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-11-16 23:12:47,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-11-16 23:12:47,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-11-16 23:12:47,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-11-16 23:12:47,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:12:47,653 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-16 23:12:47,653 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:12:47,653 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-16 23:12:47,678 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:47,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 152 transitions, 332 flow [2024-11-16 23:12:47,696 INFO L124 PetriNetUnfolderBase]: 9/198 cut-off events. [2024-11-16 23:12:47,696 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-16 23:12:47,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 198 events. 9/198 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 593 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 162. Up to 10 conditions per place. [2024-11-16 23:12:47,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 152 transitions, 332 flow [2024-11-16 23:12:47,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 152 transitions, 332 flow [2024-11-16 23:12:47,701 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:47,701 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;@6e4399fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:47,702 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-16 23:12:47,703 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:47,703 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-11-16 23:12:47,704 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:47,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:47,704 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] [2024-11-16 23:12:47,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:12:47,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:47,704 INFO L85 PathProgramCache]: Analyzing trace with hash 553018709, now seen corresponding path program 1 times [2024-11-16 23:12:47,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:47,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476943303] [2024-11-16 23:12:47,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:47,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:47,714 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 23:12:47,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:47,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476943303] [2024-11-16 23:12:47,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476943303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:47,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:47,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:12:47,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884040974] [2024-11-16 23:12:47,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:47,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:12:47,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:47,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:12:47,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:12:47,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 152 [2024-11-16 23:12:47,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 152 transitions, 332 flow. Second operand has 2 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 23:12:47,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:47,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 152 [2024-11-16 23:12:47,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:48,311 INFO L124 PetriNetUnfolderBase]: 1848/5385 cut-off events. [2024-11-16 23:12:48,311 INFO L125 PetriNetUnfolderBase]: For 1422/1422 co-relation queries the response was YES. [2024-11-16 23:12:48,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8633 conditions, 5385 events. 1848/5385 cut-off events. For 1422/1422 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 51661 event pairs, 1720 based on Foata normal form. 1562/6169 useless extension candidates. Maximal degree in co-relation 6273. Up to 2501 conditions per place. [2024-11-16 23:12:48,345 INFO L140 encePairwiseOnDemand]: 122/152 looper letters, 20 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2024-11-16 23:12:48,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 119 transitions, 306 flow [2024-11-16 23:12:48,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:12:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:12:48,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 254 transitions. [2024-11-16 23:12:48,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8355263157894737 [2024-11-16 23:12:48,347 INFO L175 Difference]: Start difference. First operand has 156 places, 152 transitions, 332 flow. Second operand 2 states and 254 transitions. [2024-11-16 23:12:48,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 119 transitions, 306 flow [2024-11-16 23:12:48,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 119 transitions, 300 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:48,349 INFO L231 Difference]: Finished difference. Result has 125 places, 119 transitions, 260 flow [2024-11-16 23:12:48,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=260, PETRI_PLACES=125, PETRI_TRANSITIONS=119} [2024-11-16 23:12:48,351 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -31 predicate places. [2024-11-16 23:12:48,351 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 119 transitions, 260 flow [2024-11-16 23:12:48,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 23:12:48,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:48,351 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] [2024-11-16 23:12:48,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:12:48,351 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:12:48,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:48,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1124942055, now seen corresponding path program 1 times [2024-11-16 23:12:48,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:48,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278533859] [2024-11-16 23:12:48,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:48,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:48,373 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 23:12:48,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:48,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278533859] [2024-11-16 23:12:48,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278533859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:48,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:48,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:12:48,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888674583] [2024-11-16 23:12:48,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:48,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:12:48,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:48,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:12:48,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:12:48,410 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 152 [2024-11-16 23:12:48,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 119 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 23:12:48,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:48,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 152 [2024-11-16 23:12:48,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:59,836 INFO L124 PetriNetUnfolderBase]: 69729/128857 cut-off events. [2024-11-16 23:12:59,837 INFO L125 PetriNetUnfolderBase]: For 6199/6199 co-relation queries the response was YES. [2024-11-16 23:13:00,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230792 conditions, 128857 events. 69729/128857 cut-off events. For 6199/6199 co-relation queries the response was YES. Maximal size of possible extension queue 5017. Compared 1446652 event pairs, 29205 based on Foata normal form. 0/113680 useless extension candidates. Maximal degree in co-relation 230785. Up to 66562 conditions per place. [2024-11-16 23:13:01,288 INFO L140 encePairwiseOnDemand]: 120/152 looper letters, 63 selfloop transitions, 24 changer transitions 0/158 dead transitions. [2024-11-16 23:13:01,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 158 transitions, 527 flow [2024-11-16 23:13:01,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:13:01,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:13:01,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2024-11-16 23:13:01,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6951754385964912 [2024-11-16 23:13:01,290 INFO L175 Difference]: Start difference. First operand has 125 places, 119 transitions, 260 flow. Second operand 3 states and 317 transitions. [2024-11-16 23:13:01,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 158 transitions, 527 flow [2024-11-16 23:13:01,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 158 transitions, 527 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:01,295 INFO L231 Difference]: Finished difference. Result has 129 places, 143 transitions, 468 flow [2024-11-16 23:13:01,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=129, PETRI_TRANSITIONS=143} [2024-11-16 23:13:01,296 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -27 predicate places. [2024-11-16 23:13:01,296 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 143 transitions, 468 flow [2024-11-16 23:13:01,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 23:13:01,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:01,296 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] [2024-11-16 23:13:01,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:13:01,297 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:13:01,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:01,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1427439134, now seen corresponding path program 1 times [2024-11-16 23:13:01,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:01,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114855267] [2024-11-16 23:13:01,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:01,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:01,323 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 23:13:01,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:01,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114855267] [2024-11-16 23:13:01,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114855267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:01,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:01,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:13:01,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882915297] [2024-11-16 23:13:01,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:01,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:13:01,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:13:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:13:01,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 152 [2024-11-16 23:13:01,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 143 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states 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 23:13:01,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:01,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 152 [2024-11-16 23:13:01,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:16,550 INFO L124 PetriNetUnfolderBase]: 88633/169853 cut-off events. [2024-11-16 23:13:16,551 INFO L125 PetriNetUnfolderBase]: For 89693/95212 co-relation queries the response was YES. [2024-11-16 23:13:17,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396179 conditions, 169853 events. 88633/169853 cut-off events. For 89693/95212 co-relation queries the response was YES. Maximal size of possible extension queue 6352. Compared 2029152 event pairs, 44988 based on Foata normal form. 719/148443 useless extension candidates. Maximal degree in co-relation 396170. Up to 95632 conditions per place. [2024-11-16 23:13:18,906 INFO L140 encePairwiseOnDemand]: 136/152 looper letters, 62 selfloop transitions, 28 changer transitions 0/181 dead transitions. [2024-11-16 23:13:18,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 181 transitions, 811 flow [2024-11-16 23:13:18,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:13:18,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:13:18,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2024-11-16 23:13:18,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7039473684210527 [2024-11-16 23:13:18,912 INFO L175 Difference]: Start difference. First operand has 129 places, 143 transitions, 468 flow. Second operand 3 states and 321 transitions. [2024-11-16 23:13:18,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 181 transitions, 811 flow [2024-11-16 23:13:19,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 181 transitions, 739 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:13:19,529 INFO L231 Difference]: Finished difference. Result has 131 places, 169 transitions, 686 flow [2024-11-16 23:13:19,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=131, PETRI_TRANSITIONS=169} [2024-11-16 23:13:19,534 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -25 predicate places. [2024-11-16 23:13:19,534 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 169 transitions, 686 flow [2024-11-16 23:13:19,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states 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 23:13:19,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:19,534 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:13:19,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:13:19,535 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:13:19,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:19,535 INFO L85 PathProgramCache]: Analyzing trace with hash -48224974, now seen corresponding path program 1 times [2024-11-16 23:13:19,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:19,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361382042] [2024-11-16 23:13:19,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:19,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:13:19,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:19,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361382042] [2024-11-16 23:13:19,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361382042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:19,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:19,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:13:19,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955461397] [2024-11-16 23:13:19,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:19,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:13:19,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:19,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:13:19,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:13:19,626 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 152 [2024-11-16 23:13:19,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 169 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states 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 23:13:19,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:19,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 152 [2024-11-16 23:13:19,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:24,246 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([707] L722-2-->L722-1: Formula: (= |v_#race~value~0_9| 0) InVars {} OutVars{#race~value~0=|v_#race~value~0_9|} AuxVars[] AssignedVars[#race~value~0][46], [Black: 161#true, 3#L722-1true, 157#true, Black: 168#(= |#race~value~0| |thr1Thread1of4ForFork0_#t~nondet6#1|), 166#true, 84#L718-2true, 148#L733-2true, 151#true, 159#true, 153#true, 155#true, 171#true, 123#L720true, 13#L724-1true]) [2024-11-16 23:13:24,246 INFO L294 olderBase$Statistics]: this new event has 72 ancestors and is cut-off event [2024-11-16 23:13:24,246 INFO L297 olderBase$Statistics]: existing Event has 72 ancestors and is cut-off event [2024-11-16 23:13:24,246 INFO L297 olderBase$Statistics]: existing Event has 72 ancestors and is cut-off event [2024-11-16 23:13:24,246 INFO L297 olderBase$Statistics]: existing Event has 72 ancestors and is cut-off event [2024-11-16 23:13:24,247 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([606] L718-2-->L718-1: Formula: (= |v_#race~value~0_12| 0) InVars {} OutVars{#race~value~0=|v_#race~value~0_12|} AuxVars[] AssignedVars[#race~value~0][75], [Black: 161#true, 157#true, Black: 168#(= |#race~value~0| |thr1Thread1of4ForFork0_#t~nondet6#1|), 166#true, 148#L733-2true, 151#true, 159#true, 153#true, 155#true, 171#true, 123#L720true, 13#L724-1true, 144#L718-1true, 121#L718true]) [2024-11-16 23:13:24,247 INFO L294 olderBase$Statistics]: this new event has 71 ancestors and is cut-off event [2024-11-16 23:13:24,247 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-16 23:13:24,247 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-16 23:13:24,247 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-16 23:13:25,360 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([645] L722-2-->L722-1: Formula: (= |v_#race~value~0_9| 0) InVars {} OutVars{#race~value~0=|v_#race~value~0_9|} AuxVars[] AssignedVars[#race~value~0][184], [Black: 161#true, 77#L723true, 157#true, Black: 168#(= |#race~value~0| |thr1Thread1of4ForFork0_#t~nondet6#1|), 166#true, 148#L733-2true, 133#L720true, 151#true, 43#L722-1true, 159#true, 153#true, 155#true, 171#true, 143#L718true]) [2024-11-16 23:13:25,361 INFO L294 olderBase$Statistics]: this new event has 73 ancestors and is cut-off event [2024-11-16 23:13:25,361 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-11-16 23:13:25,361 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-11-16 23:13:25,361 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-11-16 23:13:25,461 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([676] L722-2-->L722-1: Formula: (= |v_#race~value~0_9| 0) InVars {} OutVars{#race~value~0=|v_#race~value~0_9|} AuxVars[] AssignedVars[#race~value~0][103], [Black: 161#true, 77#L723true, 157#true, 6#L718true, Black: 168#(= |#race~value~0| |thr1Thread1of4ForFork0_#t~nondet6#1|), 166#true, 148#L733-2true, 133#L720true, 151#true, 159#true, 153#true, 155#true, 171#true, 64#L722-1true]) [2024-11-16 23:13:25,461 INFO L294 olderBase$Statistics]: this new event has 73 ancestors and is cut-off event [2024-11-16 23:13:25,461 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-11-16 23:13:25,461 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-11-16 23:13:25,461 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-11-16 23:13:26,738 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([606] L718-2-->L718-1: Formula: (= |v_#race~value~0_12| 0) InVars {} OutVars{#race~value~0=|v_#race~value~0_12|} AuxVars[] AssignedVars[#race~value~0][75], [Black: 161#true, 157#true, Black: 168#(= |#race~value~0| |thr1Thread1of4ForFork0_#t~nondet6#1|), 166#true, 148#L733-2true, 151#true, 159#true, 153#true, 155#true, 65#L722true, 171#true, 123#L720true, 13#L724-1true, 144#L718-1true]) [2024-11-16 23:13:26,739 INFO L294 olderBase$Statistics]: this new event has 74 ancestors and is cut-off event [2024-11-16 23:13:26,739 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-11-16 23:13:26,739 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-11-16 23:13:26,739 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-11-16 23:13:27,872 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([645] L722-2-->L722-1: Formula: (= |v_#race~value~0_9| 0) InVars {} OutVars{#race~value~0=|v_#race~value~0_9|} AuxVars[] AssignedVars[#race~value~0][184], [Black: 161#true, 77#L723true, 157#true, Black: 168#(= |#race~value~0| |thr1Thread1of4ForFork0_#t~nondet6#1|), 134#L722true, 166#true, 133#L720true, 148#L733-2true, 151#true, 43#L722-1true, 159#true, 153#true, 155#true, 171#true]) [2024-11-16 23:13:27,872 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2024-11-16 23:13:27,872 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-11-16 23:13:27,872 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-11-16 23:13:27,872 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event