./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/07_rand.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/07_rand.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 205a9486f54af3fadf53566888e578b0d398a9ea9e18a2466103c3619a5ade13 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:29:09,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:29:09,283 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:29:09,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:29:09,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:29:09,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:29:09,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:29:09,324 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:29:09,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:29:09,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:29:09,329 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:29:09,329 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:29:09,329 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:29:09,330 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:29:09,330 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:29:09,330 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:29:09,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:29:09,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:29:09,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:29:09,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:29:09,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:29:09,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:29:09,333 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:29:09,333 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:29:09,334 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:29:09,334 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:29:09,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:29:09,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:29:09,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:29:09,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:29:09,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:29:09,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:29:09,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:29:09,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:29:09,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:29:09,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:29:09,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:29:09,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:29:09,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:29:09,338 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:29:09,338 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:29:09,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 205a9486f54af3fadf53566888e578b0d398a9ea9e18a2466103c3619a5ade13 [2024-10-13 09:29:09,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:29:09,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:29:09,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:29:09,618 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:29:09,618 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:29:09,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/07_rand.i [2024-10-13 09:29:11,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:29:11,311 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:29:11,311 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/07_rand.i [2024-10-13 09:29:11,323 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cba3a0b1/91f99680212840c183f55f317d50c962/FLAG3414291b9 [2024-10-13 09:29:11,336 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cba3a0b1/91f99680212840c183f55f317d50c962 [2024-10-13 09:29:11,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:29:11,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:29:11,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:29:11,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:29:11,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:29:11,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ba6696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11, skipping insertion in model container [2024-10-13 09:29:11,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:29:11,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:29:11,720 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:29:11,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:29:11,825 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:29:11,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11 WrapperNode [2024-10-13 09:29:11,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:29:11,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:29:11,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:29:11,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:29:11,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,875 INFO L138 Inliner]: procedures = 173, calls = 21, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 168 [2024-10-13 09:29:11,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:29:11,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:29:11,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:29:11,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:29:11,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:29:11,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:29:11,922 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:29:11,922 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:29:11,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (1/1) ... [2024-10-13 09:29:11,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:29:11,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:29:11,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:29:11,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:29:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-13 09:29:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-13 09:29:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:29:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:29:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:29:12,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:29:12,010 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:29:12,139 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:29:12,142 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:29:12,424 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:29:12,425 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:29:12,539 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:29:12,539 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-13 09:29:12,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:29:12 BoogieIcfgContainer [2024-10-13 09:29:12,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:29:12,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:29:12,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:29:12,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:29:12,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:29:11" (1/3) ... [2024-10-13 09:29:12,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a6d0d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:29:12, skipping insertion in model container [2024-10-13 09:29:12,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:29:11" (2/3) ... [2024-10-13 09:29:12,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a6d0d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:29:12, skipping insertion in model container [2024-10-13 09:29:12,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:29:12" (3/3) ... [2024-10-13 09:29:12,554 INFO L112 eAbstractionObserver]: Analyzing ICFG 07_rand.i [2024-10-13 09:29:12,568 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:29:12,569 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-13 09:29:12,569 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:29:12,624 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:29:12,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 139 transitions, 282 flow [2024-10-13 09:29:12,765 INFO L124 PetriNetUnfolderBase]: 14/148 cut-off events. [2024-10-13 09:29:12,765 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:29:12,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 148 events. 14/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 250 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 125. Up to 4 conditions per place. [2024-10-13 09:29:12,774 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 139 transitions, 282 flow [2024-10-13 09:29:12,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 139 transitions, 282 flow [2024-10-13 09:29:12,787 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:29:12,794 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;@45b075e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:29:12,794 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-10-13 09:29:12,799 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:29:12,800 INFO L124 PetriNetUnfolderBase]: 1/24 cut-off events. [2024-10-13 09:29:12,800 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:29:12,800 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:12,801 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:29:12,801 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-13 09:29:12,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:12,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1581571795, now seen corresponding path program 1 times [2024-10-13 09:29:12,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:12,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590858374] [2024-10-13 09:29:12,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:12,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:13,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:13,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590858374] [2024-10-13 09:29:13,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590858374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:13,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:13,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:29:13,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555469863] [2024-10-13 09:29:13,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:13,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:29:13,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:13,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:29:13,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:29:13,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 139 [2024-10-13 09:29:13,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 139 transitions, 282 flow. Second operand has 2 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:13,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:13,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 139 [2024-10-13 09:29:13,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:13,085 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2024-10-13 09:29:13,085 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:29:13,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 112 events. 3/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 117 event pairs, 0 based on Foata normal form. 14/114 useless extension candidates. Maximal degree in co-relation 99. Up to 7 conditions per place. [2024-10-13 09:29:13,087 INFO L140 encePairwiseOnDemand]: 118/139 looper letters, 6 selfloop transitions, 0 changer transitions 0/108 dead transitions. [2024-10-13 09:29:13,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 108 transitions, 232 flow [2024-10-13 09:29:13,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:29:13,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:29:13,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 245 transitions. [2024-10-13 09:29:13,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8812949640287769 [2024-10-13 09:29:13,113 INFO L175 Difference]: Start difference. First operand has 129 places, 139 transitions, 282 flow. Second operand 2 states and 245 transitions. [2024-10-13 09:29:13,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 108 transitions, 232 flow [2024-10-13 09:29:13,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 108 transitions, 232 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:29:13,121 INFO L231 Difference]: Finished difference. Result has 109 places, 108 transitions, 220 flow [2024-10-13 09:29:13,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=220, PETRI_PLACES=109, PETRI_TRANSITIONS=108} [2024-10-13 09:29:13,128 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, -20 predicate places. [2024-10-13 09:29:13,129 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 108 transitions, 220 flow [2024-10-13 09:29:13,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:13,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:13,130 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] [2024-10-13 09:29:13,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:29:13,131 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-13 09:29:13,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:13,133 INFO L85 PathProgramCache]: Analyzing trace with hash 527947120, now seen corresponding path program 1 times [2024-10-13 09:29:13,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:13,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625691091] [2024-10-13 09:29:13,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:13,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:13,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:13,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:13,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625691091] [2024-10-13 09:29:13,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625691091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:13,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:13,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:29:13,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017033433] [2024-10-13 09:29:13,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:13,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:29:13,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:13,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:29:13,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:29:13,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 139 [2024-10-13 09:29:13,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 108 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:13,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:13,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 139 [2024-10-13 09:29:13,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:13,261 INFO L124 PetriNetUnfolderBase]: 3/111 cut-off events. [2024-10-13 09:29:13,261 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:29:13,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 111 events. 3/111 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 115 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 122. Up to 5 conditions per place. [2024-10-13 09:29:13,262 INFO L140 encePairwiseOnDemand]: 136/139 looper letters, 7 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2024-10-13 09:29:13,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 107 transitions, 236 flow [2024-10-13 09:29:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:29:13,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:29:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2024-10-13 09:29:13,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7793764988009593 [2024-10-13 09:29:13,266 INFO L175 Difference]: Start difference. First operand has 109 places, 108 transitions, 220 flow. Second operand 3 states and 325 transitions. [2024-10-13 09:29:13,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 107 transitions, 236 flow [2024-10-13 09:29:13,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 107 transitions, 236 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:29:13,269 INFO L231 Difference]: Finished difference. Result has 110 places, 107 transitions, 222 flow [2024-10-13 09:29:13,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=110, PETRI_TRANSITIONS=107} [2024-10-13 09:29:13,271 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, -19 predicate places. [2024-10-13 09:29:13,271 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 107 transitions, 222 flow [2024-10-13 09:29:13,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:13,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:13,272 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:29:13,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:29:13,272 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-13 09:29:13,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:13,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1497673964, now seen corresponding path program 1 times [2024-10-13 09:29:13,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:13,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437882513] [2024-10-13 09:29:13,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:13,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:29:13,294 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:29:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:29:13,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:29:13,342 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:29:13,344 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-10-13 09:29:13,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-10-13 09:29:13,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-10-13 09:29:13,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-10-13 09:29:13,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-10-13 09:29:13,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-10-13 09:29:13,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2024-10-13 09:29:13,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-10-13 09:29:13,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-10-13 09:29:13,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-10-13 09:29:13,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-10-13 09:29:13,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-10-13 09:29:13,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-10-13 09:29:13,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-10-13 09:29:13,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-10-13 09:29:13,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-10-13 09:29:13,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-10-13 09:29:13,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-10-13 09:29:13,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-10-13 09:29:13,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-10-13 09:29:13,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-10-13 09:29:13,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-10-13 09:29:13,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-10-13 09:29:13,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-10-13 09:29:13,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-10-13 09:29:13,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-10-13 09:29:13,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-10-13 09:29:13,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-10-13 09:29:13,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-10-13 09:29:13,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-10-13 09:29:13,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-10-13 09:29:13,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-10-13 09:29:13,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-10-13 09:29:13,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:29:13,358 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-13 09:29:13,361 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:29:13,361 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 09:29:13,412 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:29:13,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 254 transitions, 518 flow [2024-10-13 09:29:13,473 INFO L124 PetriNetUnfolderBase]: 27/274 cut-off events. [2024-10-13 09:29:13,473 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 09:29:13,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 274 events. 27/274 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 887 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 239. Up to 6 conditions per place. [2024-10-13 09:29:13,480 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 254 transitions, 518 flow [2024-10-13 09:29:13,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 254 transitions, 518 flow [2024-10-13 09:29:13,491 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:29:13,493 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;@45b075e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:29:13,493 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-10-13 09:29:13,497 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:29:13,497 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-10-13 09:29:13,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:29:13,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:13,498 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:29:13,498 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-13 09:29:13,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:13,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1606863203, now seen corresponding path program 1 times [2024-10-13 09:29:13,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:13,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109982557] [2024-10-13 09:29:13,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:13,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:13,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:13,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:13,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109982557] [2024-10-13 09:29:13,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109982557] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:13,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:13,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:29:13,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746412139] [2024-10-13 09:29:13,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:13,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:29:13,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:29:13,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:29:13,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 254 [2024-10-13 09:29:13,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 254 transitions, 518 flow. Second operand has 2 states, 2 states have (on average 197.0) internal successors, (394), 2 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:13,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:13,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 254 [2024-10-13 09:29:13,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:13,713 INFO L124 PetriNetUnfolderBase]: 54/759 cut-off events. [2024-10-13 09:29:13,714 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-13 09:29:13,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 759 events. 54/759 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4607 event pairs, 30 based on Foata normal form. 134/789 useless extension candidates. Maximal degree in co-relation 702. Up to 73 conditions per place. [2024-10-13 09:29:13,724 INFO L140 encePairwiseOnDemand]: 214/254 looper letters, 12 selfloop transitions, 0 changer transitions 0/197 dead transitions. [2024-10-13 09:29:13,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 197 transitions, 428 flow [2024-10-13 09:29:13,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:29:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:29:13,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 444 transitions. [2024-10-13 09:29:13,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8740157480314961 [2024-10-13 09:29:13,732 INFO L175 Difference]: Start difference. First operand has 234 places, 254 transitions, 518 flow. Second operand 2 states and 444 transitions. [2024-10-13 09:29:13,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 197 transitions, 428 flow [2024-10-13 09:29:13,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 197 transitions, 428 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:29:13,739 INFO L231 Difference]: Finished difference. Result has 197 places, 197 transitions, 404 flow [2024-10-13 09:29:13,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=404, PETRI_PLACES=197, PETRI_TRANSITIONS=197} [2024-10-13 09:29:13,742 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, -37 predicate places. [2024-10-13 09:29:13,742 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 197 transitions, 404 flow [2024-10-13 09:29:13,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 197.0) internal successors, (394), 2 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:13,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:13,742 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] [2024-10-13 09:29:13,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:29:13,743 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-13 09:29:13,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1992719584, now seen corresponding path program 1 times [2024-10-13 09:29:13,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:13,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232313852] [2024-10-13 09:29:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:13,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:13,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:13,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232313852] [2024-10-13 09:29:13,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232313852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:13,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:13,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:29:13,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046313264] [2024-10-13 09:29:13,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:13,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:29:13,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:13,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:29:13,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:29:13,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 254 [2024-10-13 09:29:13,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 197 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:13,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:13,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 254 [2024-10-13 09:29:13,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:14,055 INFO L124 PetriNetUnfolderBase]: 128/1351 cut-off events. [2024-10-13 09:29:14,055 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-10-13 09:29:14,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 1351 events. 128/1351 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 10157 event pairs, 37 based on Foata normal form. 0/1173 useless extension candidates. Maximal degree in co-relation 1578. Up to 124 conditions per place. [2024-10-13 09:29:14,067 INFO L140 encePairwiseOnDemand]: 246/254 looper letters, 31 selfloop transitions, 6 changer transitions 0/214 dead transitions. [2024-10-13 09:29:14,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 214 transitions, 517 flow [2024-10-13 09:29:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:29:14,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:29:14,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 603 transitions. [2024-10-13 09:29:14,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7913385826771654 [2024-10-13 09:29:14,070 INFO L175 Difference]: Start difference. First operand has 197 places, 197 transitions, 404 flow. Second operand 3 states and 603 transitions. [2024-10-13 09:29:14,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 214 transitions, 517 flow [2024-10-13 09:29:14,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 214 transitions, 517 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:29:14,076 INFO L231 Difference]: Finished difference. Result has 201 places, 203 transitions, 456 flow [2024-10-13 09:29:14,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=201, PETRI_TRANSITIONS=203} [2024-10-13 09:29:14,078 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, -33 predicate places. [2024-10-13 09:29:14,078 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 203 transitions, 456 flow [2024-10-13 09:29:14,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:14,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:14,079 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] [2024-10-13 09:29:14,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:29:14,080 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-13 09:29:14,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:14,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1180407971, now seen corresponding path program 1 times [2024-10-13 09:29:14,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:14,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695400999] [2024-10-13 09:29:14,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:14,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:14,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:14,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:14,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695400999] [2024-10-13 09:29:14,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695400999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:14,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:14,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:29:14,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946763180] [2024-10-13 09:29:14,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:14,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:29:14,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:14,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:29:14,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:29:14,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 254 [2024-10-13 09:29:14,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 203 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:14,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:14,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 254 [2024-10-13 09:29:14,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:14,521 INFO L124 PetriNetUnfolderBase]: 265/2190 cut-off events. [2024-10-13 09:29:14,521 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-10-13 09:29:14,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 2190 events. 265/2190 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 18740 event pairs, 157 based on Foata normal form. 0/1902 useless extension candidates. Maximal degree in co-relation 2764. Up to 400 conditions per place. [2024-10-13 09:29:14,537 INFO L140 encePairwiseOnDemand]: 246/254 looper letters, 31 selfloop transitions, 7 changer transitions 0/215 dead transitions. [2024-10-13 09:29:14,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 215 transitions, 561 flow [2024-10-13 09:29:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:29:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:29:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 585 transitions. [2024-10-13 09:29:14,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7677165354330708 [2024-10-13 09:29:14,540 INFO L175 Difference]: Start difference. First operand has 201 places, 203 transitions, 456 flow. Second operand 3 states and 585 transitions. [2024-10-13 09:29:14,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 215 transitions, 561 flow [2024-10-13 09:29:14,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 215 transitions, 549 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:29:14,546 INFO L231 Difference]: Finished difference. Result has 203 places, 209 transitions, 498 flow [2024-10-13 09:29:14,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=203, PETRI_TRANSITIONS=209} [2024-10-13 09:29:14,550 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, -31 predicate places. [2024-10-13 09:29:14,550 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 209 transitions, 498 flow [2024-10-13 09:29:14,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:14,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:14,552 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:29:14,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:29:14,552 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-13 09:29:14,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:14,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1275619622, now seen corresponding path program 1 times [2024-10-13 09:29:14,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:14,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122565411] [2024-10-13 09:29:14,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:14,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:29:14,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:29:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:29:14,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:29:14,587 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:29:14,587 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-10-13 09:29:14,587 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-10-13 09:29:14,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-10-13 09:29:14,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-10-13 09:29:14,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-10-13 09:29:14,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-10-13 09:29:14,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2024-10-13 09:29:14,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-10-13 09:29:14,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-10-13 09:29:14,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-10-13 09:29:14,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-10-13 09:29:14,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-10-13 09:29:14,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-10-13 09:29:14,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-10-13 09:29:14,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-10-13 09:29:14,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-10-13 09:29:14,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-10-13 09:29:14,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-10-13 09:29:14,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-10-13 09:29:14,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-10-13 09:29:14,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-10-13 09:29:14,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-10-13 09:29:14,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-10-13 09:29:14,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-10-13 09:29:14,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-10-13 09:29:14,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-10-13 09:29:14,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-10-13 09:29:14,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-10-13 09:29:14,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-10-13 09:29:14,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-10-13 09:29:14,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-10-13 09:29:14,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-10-13 09:29:14,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-10-13 09:29:14,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-10-13 09:29:14,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-10-13 09:29:14,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-10-13 09:29:14,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-10-13 09:29:14,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-10-13 09:29:14,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-10-13 09:29:14,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-10-13 09:29:14,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-10-13 09:29:14,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-10-13 09:29:14,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-10-13 09:29:14,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-10-13 09:29:14,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-10-13 09:29:14,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-10-13 09:29:14,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-10-13 09:29:14,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-10-13 09:29:14,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-10-13 09:29:14,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:29:14,597 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-13 09:29:14,597 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:29:14,597 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-13 09:29:14,653 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:29:14,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 339 places, 369 transitions, 756 flow [2024-10-13 09:29:14,719 INFO L124 PetriNetUnfolderBase]: 40/400 cut-off events. [2024-10-13 09:29:14,719 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-13 09:29:14,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 400 events. 40/400 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1627 event pairs, 0 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 353. Up to 8 conditions per place. [2024-10-13 09:29:14,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 339 places, 369 transitions, 756 flow [2024-10-13 09:29:14,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 339 places, 369 transitions, 756 flow [2024-10-13 09:29:14,736 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:29:14,737 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;@45b075e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:29:14,737 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-10-13 09:29:14,739 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:29:14,739 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-10-13 09:29:14,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:29:14,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:14,739 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:29:14,739 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-13 09:29:14,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:14,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1051834144, now seen corresponding path program 1 times [2024-10-13 09:29:14,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:14,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815841123] [2024-10-13 09:29:14,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:14,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:14,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:14,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:14,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815841123] [2024-10-13 09:29:14,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815841123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:14,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:14,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:29:14,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774911096] [2024-10-13 09:29:14,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:14,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:29:14,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:14,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:29:14,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:29:14,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 369 [2024-10-13 09:29:14,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 369 transitions, 756 flow. Second operand has 2 states, 2 states have (on average 284.0) internal successors, (568), 2 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:14,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:14,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 369 [2024-10-13 09:29:14,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:15,533 INFO L124 PetriNetUnfolderBase]: 543/4868 cut-off events. [2024-10-13 09:29:15,534 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-10-13 09:29:15,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5685 conditions, 4868 events. 543/4868 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 50778 event pairs, 390 based on Foata normal form. 1115/5295 useless extension candidates. Maximal degree in co-relation 4615. Up to 649 conditions per place. [2024-10-13 09:29:15,656 INFO L140 encePairwiseOnDemand]: 310/369 looper letters, 18 selfloop transitions, 0 changer transitions 0/286 dead transitions. [2024-10-13 09:29:15,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 286 transitions, 626 flow [2024-10-13 09:29:15,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:29:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:29:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 643 transitions. [2024-10-13 09:29:15,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8712737127371274 [2024-10-13 09:29:15,660 INFO L175 Difference]: Start difference. First operand has 339 places, 369 transitions, 756 flow. Second operand 2 states and 643 transitions. [2024-10-13 09:29:15,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 286 transitions, 626 flow [2024-10-13 09:29:15,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 286 transitions, 624 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-13 09:29:15,667 INFO L231 Difference]: Finished difference. Result has 285 places, 286 transitions, 588 flow [2024-10-13 09:29:15,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=588, PETRI_PLACES=285, PETRI_TRANSITIONS=286} [2024-10-13 09:29:15,668 INFO L277 CegarLoopForPetriNet]: 339 programPoint places, -54 predicate places. [2024-10-13 09:29:15,668 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 286 transitions, 588 flow [2024-10-13 09:29:15,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 284.0) internal successors, (568), 2 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:15,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:15,669 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] [2024-10-13 09:29:15,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:29:15,670 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-13 09:29:15,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:15,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1495254909, now seen corresponding path program 1 times [2024-10-13 09:29:15,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:15,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239294284] [2024-10-13 09:29:15,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:15,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:15,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:15,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:15,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239294284] [2024-10-13 09:29:15,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239294284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:15,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:15,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:29:15,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768602264] [2024-10-13 09:29:15,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:15,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:29:15,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:15,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:29:15,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:29:15,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 369 [2024-10-13 09:29:15,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 286 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:15,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:15,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 369 [2024-10-13 09:29:15,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:17,896 INFO L124 PetriNetUnfolderBase]: 2542/15971 cut-off events. [2024-10-13 09:29:17,897 INFO L125 PetriNetUnfolderBase]: For 355/355 co-relation queries the response was YES. [2024-10-13 09:29:17,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19702 conditions, 15971 events. 2542/15971 cut-off events. For 355/355 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 208257 event pairs, 849 based on Foata normal form. 0/13844 useless extension candidates. Maximal degree in co-relation 19696. Up to 2052 conditions per place. [2024-10-13 09:29:18,060 INFO L140 encePairwiseOnDemand]: 357/369 looper letters, 47 selfloop transitions, 9 changer transitions 0/312 dead transitions. [2024-10-13 09:29:18,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 312 transitions, 762 flow [2024-10-13 09:29:18,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:29:18,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:29:18,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 872 transitions. [2024-10-13 09:29:18,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7877145438121048 [2024-10-13 09:29:18,064 INFO L175 Difference]: Start difference. First operand has 285 places, 286 transitions, 588 flow. Second operand 3 states and 872 transitions. [2024-10-13 09:29:18,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 312 transitions, 762 flow [2024-10-13 09:29:18,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 312 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:29:18,070 INFO L231 Difference]: Finished difference. Result has 289 places, 295 transitions, 666 flow [2024-10-13 09:29:18,071 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=666, PETRI_PLACES=289, PETRI_TRANSITIONS=295} [2024-10-13 09:29:18,072 INFO L277 CegarLoopForPetriNet]: 339 programPoint places, -50 predicate places. [2024-10-13 09:29:18,072 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 295 transitions, 666 flow [2024-10-13 09:29:18,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:18,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:18,073 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:29:18,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 09:29:18,073 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-13 09:29:18,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:18,074 INFO L85 PathProgramCache]: Analyzing trace with hash 46832651, now seen corresponding path program 1 times [2024-10-13 09:29:18,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:18,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240956590] [2024-10-13 09:29:18,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:18,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:18,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:18,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240956590] [2024-10-13 09:29:18,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240956590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:18,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:18,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:29:18,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775310811] [2024-10-13 09:29:18,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:18,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:29:18,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:18,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:29:18,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:29:18,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 369 [2024-10-13 09:29:18,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 295 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:18,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:18,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 369 [2024-10-13 09:29:18,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:22,833 INFO L124 PetriNetUnfolderBase]: 7630/41967 cut-off events. [2024-10-13 09:29:22,833 INFO L125 PetriNetUnfolderBase]: For 1050/1050 co-relation queries the response was YES. [2024-10-13 09:29:23,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54226 conditions, 41967 events. 7630/41967 cut-off events. For 1050/1050 co-relation queries the response was YES. Maximal size of possible extension queue 1067. Compared 623843 event pairs, 5113 based on Foata normal form. 0/36138 useless extension candidates. Maximal degree in co-relation 54218. Up to 9379 conditions per place. [2024-10-13 09:29:23,201 INFO L140 encePairwiseOnDemand]: 357/369 looper letters, 47 selfloop transitions, 11 changer transitions 0/317 dead transitions. [2024-10-13 09:29:23,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 317 transitions, 836 flow [2024-10-13 09:29:23,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:29:23,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:29:23,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 854 transitions. [2024-10-13 09:29:23,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7714543812104788 [2024-10-13 09:29:23,204 INFO L175 Difference]: Start difference. First operand has 289 places, 295 transitions, 666 flow. Second operand 3 states and 854 transitions. [2024-10-13 09:29:23,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 317 transitions, 836 flow [2024-10-13 09:29:23,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 317 transitions, 818 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:29:23,217 INFO L231 Difference]: Finished difference. Result has 291 places, 305 transitions, 734 flow [2024-10-13 09:29:23,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=291, PETRI_TRANSITIONS=305} [2024-10-13 09:29:23,220 INFO L277 CegarLoopForPetriNet]: 339 programPoint places, -48 predicate places. [2024-10-13 09:29:23,220 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 305 transitions, 734 flow [2024-10-13 09:29:23,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:23,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:23,221 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:29:23,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:29:23,222 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-13 09:29:23,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:23,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1198230458, now seen corresponding path program 1 times [2024-10-13 09:29:23,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:23,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076358379] [2024-10-13 09:29:23,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:23,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:23,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 09:29:23,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:23,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076358379] [2024-10-13 09:29:23,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076358379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:23,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:23,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:29:23,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584439204] [2024-10-13 09:29:23,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:23,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:29:23,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:23,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:29:23,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:29:23,332 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 369 [2024-10-13 09:29:23,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 305 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:23,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:23,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 369 [2024-10-13 09:29:23,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:25,152 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1226] L719-->L719-1: Formula: (= 0 |v_#race~seed~0_4|) InVars {} OutVars{#race~seed~0=|v_#race~seed~0_4|} AuxVars[] AssignedVars[#race~seed~0][328], [115#L723-4true, Black: 351#(= |#race~seed~0| |thr1Thread1of3ForFork0_PseudoRandomUsingAtomic_constructor_#t~nondet7#1|), 338#true, 336#true, 101#L723-4true, 231#L719-1true, 349#true, 76#L752-6true, 354#true, Black: 344#true, 340#true, 342#true]) [2024-10-13 09:29:25,153 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2024-10-13 09:29:25,153 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-13 09:29:25,153 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-10-13 09:29:25,153 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-10-13 09:29:28,124 INFO L124 PetriNetUnfolderBase]: 9001/46422 cut-off events. [2024-10-13 09:29:28,124 INFO L125 PetriNetUnfolderBase]: For 4759/5250 co-relation queries the response was YES. [2024-10-13 09:29:28,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65684 conditions, 46422 events. 9001/46422 cut-off events. For 4759/5250 co-relation queries the response was YES. Maximal size of possible extension queue 1238. Compared 697084 event pairs, 5565 based on Foata normal form. 2/39952 useless extension candidates. Maximal degree in co-relation 65675. Up to 10847 conditions per place. [2024-10-13 09:29:28,654 INFO L140 encePairwiseOnDemand]: 357/369 looper letters, 53 selfloop transitions, 16 changer transitions 0/330 dead transitions. [2024-10-13 09:29:28,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 330 transitions, 955 flow [2024-10-13 09:29:28,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:29:28,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:29:28,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 853 transitions. [2024-10-13 09:29:28,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7705510388437218 [2024-10-13 09:29:28,659 INFO L175 Difference]: Start difference. First operand has 291 places, 305 transitions, 734 flow. Second operand 3 states and 853 transitions. [2024-10-13 09:29:28,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 330 transitions, 955 flow [2024-10-13 09:29:28,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 330 transitions, 923 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:29:28,757 INFO L231 Difference]: Finished difference. Result has 293 places, 319 transitions, 852 flow [2024-10-13 09:29:28,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=852, PETRI_PLACES=293, PETRI_TRANSITIONS=319} [2024-10-13 09:29:28,759 INFO L277 CegarLoopForPetriNet]: 339 programPoint places, -46 predicate places. [2024-10-13 09:29:28,759 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 319 transitions, 852 flow [2024-10-13 09:29:28,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:28,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:28,760 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:29:28,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 09:29:28,761 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-13 09:29:28,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:28,761 INFO L85 PathProgramCache]: Analyzing trace with hash -111697542, now seen corresponding path program 1 times [2024-10-13 09:29:28,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:28,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530702270] [2024-10-13 09:29:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:28,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:28,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:28,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530702270] [2024-10-13 09:29:28,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530702270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:28,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:28,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:29:28,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900252250] [2024-10-13 09:29:28,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:28,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:29:28,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:28,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:29:28,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:29:28,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 369 [2024-10-13 09:29:28,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 319 transitions, 852 flow. Second operand has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:28,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:28,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 369 [2024-10-13 09:29:28,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:33,686 INFO L124 PetriNetUnfolderBase]: 8368/46511 cut-off events. [2024-10-13 09:29:33,687 INFO L125 PetriNetUnfolderBase]: For 5507/6854 co-relation queries the response was YES. [2024-10-13 09:29:33,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66222 conditions, 46511 events. 8368/46511 cut-off events. For 5507/6854 co-relation queries the response was YES. Maximal size of possible extension queue 1319. Compared 711921 event pairs, 3538 based on Foata normal form. 46/38867 useless extension candidates. Maximal degree in co-relation 66212. Up to 5350 conditions per place. [2024-10-13 09:29:34,175 INFO L140 encePairwiseOnDemand]: 362/369 looper letters, 46 selfloop transitions, 11 changer transitions 0/341 dead transitions. [2024-10-13 09:29:34,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 341 transitions, 1036 flow [2024-10-13 09:29:34,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:29:34,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:29:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 864 transitions. [2024-10-13 09:29:34,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7804878048780488 [2024-10-13 09:29:34,178 INFO L175 Difference]: Start difference. First operand has 293 places, 319 transitions, 852 flow. Second operand 3 states and 864 transitions. [2024-10-13 09:29:34,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 341 transitions, 1036 flow [2024-10-13 09:29:34,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 341 transitions, 1004 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:29:34,234 INFO L231 Difference]: Finished difference. Result has 295 places, 328 transitions, 918 flow [2024-10-13 09:29:34,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=918, PETRI_PLACES=295, PETRI_TRANSITIONS=328} [2024-10-13 09:29:34,236 INFO L277 CegarLoopForPetriNet]: 339 programPoint places, -44 predicate places. [2024-10-13 09:29:34,236 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 328 transitions, 918 flow [2024-10-13 09:29:34,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:34,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:34,237 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:29:34,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 09:29:34,237 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-13 09:29:34,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:34,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1310834131, now seen corresponding path program 1 times [2024-10-13 09:29:34,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:34,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060603758] [2024-10-13 09:29:34,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:34,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:29:34,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:29:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:29:34,264 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:29:34,264 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:29:34,265 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2024-10-13 09:29:34,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2024-10-13 09:29:34,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2024-10-13 09:29:34,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2024-10-13 09:29:34,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2024-10-13 09:29:34,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2024-10-13 09:29:34,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2024-10-13 09:29:34,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2024-10-13 09:29:34,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2024-10-13 09:29:34,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2024-10-13 09:29:34,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2024-10-13 09:29:34,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2024-10-13 09:29:34,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2024-10-13 09:29:34,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2024-10-13 09:29:34,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2024-10-13 09:29:34,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2024-10-13 09:29:34,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2024-10-13 09:29:34,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2024-10-13 09:29:34,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2024-10-13 09:29:34,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2024-10-13 09:29:34,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2024-10-13 09:29:34,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2024-10-13 09:29:34,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2024-10-13 09:29:34,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2024-10-13 09:29:34,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2024-10-13 09:29:34,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2024-10-13 09:29:34,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2024-10-13 09:29:34,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2024-10-13 09:29:34,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2024-10-13 09:29:34,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2024-10-13 09:29:34,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2024-10-13 09:29:34,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2024-10-13 09:29:34,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2024-10-13 09:29:34,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2024-10-13 09:29:34,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2024-10-13 09:29:34,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2024-10-13 09:29:34,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2024-10-13 09:29:34,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2024-10-13 09:29:34,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2024-10-13 09:29:34,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2024-10-13 09:29:34,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2024-10-13 09:29:34,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2024-10-13 09:29:34,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2024-10-13 09:29:34,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2024-10-13 09:29:34,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2024-10-13 09:29:34,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 09:29:34,273 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-13 09:29:34,274 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:29:34,274 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-13 09:29:34,331 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:29:34,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 484 transitions, 996 flow [2024-10-13 09:29:34,423 INFO L124 PetriNetUnfolderBase]: 53/526 cut-off events. [2024-10-13 09:29:34,424 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-13 09:29:34,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 526 events. 53/526 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2425 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 467. Up to 10 conditions per place. [2024-10-13 09:29:34,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 444 places, 484 transitions, 996 flow [2024-10-13 09:29:34,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 484 transitions, 996 flow [2024-10-13 09:29:34,450 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:29:34,450 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;@45b075e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:29:34,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2024-10-13 09:29:34,452 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:29:34,456 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-10-13 09:29:34,456 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:29:34,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:34,456 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:29:34,456 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2024-10-13 09:29:34,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:34,457 INFO L85 PathProgramCache]: Analyzing trace with hash 83522678, now seen corresponding path program 1 times [2024-10-13 09:29:34,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:34,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523892832] [2024-10-13 09:29:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:34,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:34,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:34,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:34,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523892832] [2024-10-13 09:29:34,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523892832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:34,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:34,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:29:34,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838163594] [2024-10-13 09:29:34,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:34,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:29:34,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:34,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:29:34,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:29:34,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 484 [2024-10-13 09:29:34,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 484 transitions, 996 flow. Second operand has 2 states, 2 states have (on average 371.0) internal successors, (742), 2 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:34,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:34,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 484 [2024-10-13 09:29:34,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:29:38,950 INFO L124 PetriNetUnfolderBase]: 4560/30649 cut-off events. [2024-10-13 09:29:38,951 INFO L125 PetriNetUnfolderBase]: For 2401/2401 co-relation queries the response was YES. [2024-10-13 09:29:39,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37083 conditions, 30649 events. 4560/30649 cut-off events. For 2401/2401 co-relation queries the response was YES. Maximal size of possible extension queue 768. Compared 443646 event pairs, 3630 based on Foata normal form. 8669/35080 useless extension candidates. Maximal degree in co-relation 29888. Up to 5185 conditions per place. [2024-10-13 09:29:39,245 INFO L140 encePairwiseOnDemand]: 406/484 looper letters, 24 selfloop transitions, 0 changer transitions 0/375 dead transitions. [2024-10-13 09:29:39,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 375 transitions, 826 flow [2024-10-13 09:29:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:29:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:29:39,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 842 transitions. [2024-10-13 09:29:39,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8698347107438017 [2024-10-13 09:29:39,248 INFO L175 Difference]: Start difference. First operand has 444 places, 484 transitions, 996 flow. Second operand 2 states and 842 transitions. [2024-10-13 09:29:39,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 375 transitions, 826 flow [2024-10-13 09:29:39,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 375 transitions, 820 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-13 09:29:39,256 INFO L231 Difference]: Finished difference. Result has 373 places, 375 transitions, 772 flow [2024-10-13 09:29:39,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=772, PETRI_PLACES=373, PETRI_TRANSITIONS=375} [2024-10-13 09:29:39,257 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, -71 predicate places. [2024-10-13 09:29:39,257 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 375 transitions, 772 flow [2024-10-13 09:29:39,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 371.0) internal successors, (742), 2 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:39,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:29:39,258 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] [2024-10-13 09:29:39,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 09:29:39,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2024-10-13 09:29:39,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:29:39,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1339023015, now seen corresponding path program 1 times [2024-10-13 09:29:39,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:29:39,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339394138] [2024-10-13 09:29:39,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:29:39,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:29:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:29:39,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:29:39,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:29:39,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339394138] [2024-10-13 09:29:39,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339394138] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:29:39,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:29:39,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:29:39,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479561216] [2024-10-13 09:29:39,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:29:39,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:29:39,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:29:39,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:29:39,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:29:39,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 484 [2024-10-13 09:29:39,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 375 transitions, 772 flow. Second operand has 3 states, 3 states have (on average 355.3333333333333) internal successors, (1066), 3 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:29:39,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:29:39,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 484 [2024-10-13 09:29:39,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand