./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:58:49,762 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:58:49,814 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:58:49,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:58:49,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:58:49,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:58:49,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:58:49,832 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:58:49,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:58:49,833 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:58:49,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:58:49,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:58:49,834 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:58:49,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:58:49,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:58:49,835 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:58:49,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:58:49,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:58:49,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:58:49,836 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:58:49,836 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:58:49,836 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:58:49,837 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:58:49,837 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:58:49,837 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:58:49,837 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:58:49,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:58:49,838 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:58:49,838 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:58:49,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:58:49,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:58:49,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:58:49,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:58:49,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:58:49,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:58:49,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:58:49,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:58:49,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:58:49,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:58:49,844 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:58:49,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:58:49,845 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2024-11-19 05:58:50,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:58:50,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:58:50,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:58:50,096 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:58:50,096 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:58:50,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-19 05:58:51,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:58:51,728 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:58:51,729 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-19 05:58:51,735 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658b69738/c2fffc83ad48447ba464a9dd17a1224b/FLAGdae3609c4 [2024-11-19 05:58:52,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658b69738/c2fffc83ad48447ba464a9dd17a1224b [2024-11-19 05:58:52,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:58:52,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:58:52,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:58:52,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:58:52,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:58:52,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6742f953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52, skipping insertion in model container [2024-11-19 05:58:52,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,161 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:58:52,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:58:52,369 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:58:52,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:58:52,412 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:58:52,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52 WrapperNode [2024-11-19 05:58:52,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:58:52,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:58:52,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:58:52,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:58:52,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,448 INFO L138 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 172 [2024-11-19 05:58:52,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:58:52,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:58:52,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:58:52,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:58:52,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:58:52,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:58:52,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:58:52,511 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:58:52,512 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (1/1) ... [2024-11-19 05:58:52,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:58:52,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:58:52,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:58:52,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:58:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:58:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 05:58:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 05:58:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 05:58:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 05:58:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 05:58:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 05:58:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:58:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:58:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:58:52,639 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:58:52,720 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:58:52,722 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:58:52,923 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:58:52,925 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:58:52,972 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:58:52,972 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 05:58:52,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:58:52 BoogieIcfgContainer [2024-11-19 05:58:52,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:58:52,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:58:52,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:58:52,981 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:58:52,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:58:52" (1/3) ... [2024-11-19 05:58:52,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477ff87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:58:52, skipping insertion in model container [2024-11-19 05:58:52,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:58:52" (2/3) ... [2024-11-19 05:58:52,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477ff87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:58:52, skipping insertion in model container [2024-11-19 05:58:52,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:58:52" (3/3) ... [2024-11-19 05:58:52,984 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-11-19 05:58:52,997 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:58:52,997 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-19 05:58:52,998 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:58:53,064 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 05:58:53,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 189 transitions, 399 flow [2024-11-19 05:58:53,175 INFO L124 PetriNetUnfolderBase]: 7/186 cut-off events. [2024-11-19 05:58:53,177 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 05:58:53,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 186 events. 7/186 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 210 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 141. Up to 2 conditions per place. [2024-11-19 05:58:53,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 189 transitions, 399 flow [2024-11-19 05:58:53,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 169 transitions, 353 flow [2024-11-19 05:58:53,201 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:58:53,207 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;@74d55d5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:58:53,207 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-19 05:58:53,212 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:58:53,212 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-19 05:58:53,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:58:53,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:53,214 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] [2024-11-19 05:58:53,216 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-19 05:58:53,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:53,222 INFO L85 PathProgramCache]: Analyzing trace with hash -2121399970, now seen corresponding path program 1 times [2024-11-19 05:58:53,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:53,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14744608] [2024-11-19 05:58:53,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:53,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:53,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:53,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14744608] [2024-11-19 05:58:53,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14744608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:53,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:53,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:53,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610813152] [2024-11-19 05:58:53,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:53,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:53,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:53,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:53,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 189 [2024-11-19 05:58:53,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 169 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:53,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:53,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 189 [2024-11-19 05:58:53,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:53,619 INFO L124 PetriNetUnfolderBase]: 112/854 cut-off events. [2024-11-19 05:58:53,620 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-19 05:58:53,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 854 events. 112/854 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5171 event pairs, 92 based on Foata normal form. 43/769 useless extension candidates. Maximal degree in co-relation 937. Up to 173 conditions per place. [2024-11-19 05:58:53,633 INFO L140 encePairwiseOnDemand]: 182/189 looper letters, 16 selfloop transitions, 2 changer transitions 1/164 dead transitions. [2024-11-19 05:58:53,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 164 transitions, 379 flow [2024-11-19 05:58:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:58:53,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:58:53,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2024-11-19 05:58:53,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8977072310405644 [2024-11-19 05:58:53,651 INFO L175 Difference]: Start difference. First operand has 173 places, 169 transitions, 353 flow. Second operand 3 states and 509 transitions. [2024-11-19 05:58:53,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 164 transitions, 379 flow [2024-11-19 05:58:53,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 164 transitions, 370 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:58:53,661 INFO L231 Difference]: Finished difference. Result has 169 places, 163 transitions, 336 flow [2024-11-19 05:58:53,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=169, PETRI_TRANSITIONS=163} [2024-11-19 05:58:53,666 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -4 predicate places. [2024-11-19 05:58:53,666 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 163 transitions, 336 flow [2024-11-19 05:58:53,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:53,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:53,667 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] [2024-11-19 05:58:53,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:58:53,668 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-19 05:58:53,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:53,670 INFO L85 PathProgramCache]: Analyzing trace with hash 2010632472, now seen corresponding path program 1 times [2024-11-19 05:58:53,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:53,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001927710] [2024-11-19 05:58:53,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:53,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:53,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:53,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001927710] [2024-11-19 05:58:53,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001927710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:53,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:53,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:53,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859132231] [2024-11-19 05:58:53,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:53,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:53,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:53,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:53,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:53,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 189 [2024-11-19 05:58:53,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 163 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:53,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:53,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 189 [2024-11-19 05:58:53,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:53,903 INFO L124 PetriNetUnfolderBase]: 114/758 cut-off events. [2024-11-19 05:58:53,903 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-19 05:58:53,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 758 events. 114/758 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4364 event pairs, 100 based on Foata normal form. 0/647 useless extension candidates. Maximal degree in co-relation 951. Up to 185 conditions per place. [2024-11-19 05:58:53,909 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 16 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-11-19 05:58:53,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 162 transitions, 370 flow [2024-11-19 05:58:53,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:58:53,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:58:53,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2024-11-19 05:58:53,914 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.890652557319224 [2024-11-19 05:58:53,915 INFO L175 Difference]: Start difference. First operand has 169 places, 163 transitions, 336 flow. Second operand 3 states and 505 transitions. [2024-11-19 05:58:53,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 162 transitions, 370 flow [2024-11-19 05:58:53,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 162 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:58:53,919 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 334 flow [2024-11-19 05:58:53,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2024-11-19 05:58:53,920 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -6 predicate places. [2024-11-19 05:58:53,920 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 334 flow [2024-11-19 05:58:53,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:53,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:53,921 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:58:53,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:58:53,922 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-19 05:58:53,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:53,923 INFO L85 PathProgramCache]: Analyzing trace with hash 111881899, now seen corresponding path program 1 times [2024-11-19 05:58:53,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:53,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480546378] [2024-11-19 05:58:53,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:53,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:54,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:54,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480546378] [2024-11-19 05:58:54,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480546378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:54,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:54,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:54,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313567053] [2024-11-19 05:58:54,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:54,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:54,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:54,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:54,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:54,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 189 [2024-11-19 05:58:54,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:54,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:54,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 189 [2024-11-19 05:58:54,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:54,110 INFO L124 PetriNetUnfolderBase]: 114/953 cut-off events. [2024-11-19 05:58:54,110 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-19 05:58:54,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1154 conditions, 953 events. 114/953 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5910 event pairs, 92 based on Foata normal form. 0/816 useless extension candidates. Maximal degree in co-relation 1114. Up to 173 conditions per place. [2024-11-19 05:58:54,116 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 16 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2024-11-19 05:58:54,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 161 transitions, 368 flow [2024-11-19 05:58:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:58:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:58:54,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2024-11-19 05:58:54,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.890652557319224 [2024-11-19 05:58:54,118 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 334 flow. Second operand 3 states and 505 transitions. [2024-11-19 05:58:54,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 161 transitions, 368 flow [2024-11-19 05:58:54,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 161 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:58:54,121 INFO L231 Difference]: Finished difference. Result has 166 places, 161 transitions, 332 flow [2024-11-19 05:58:54,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=166, PETRI_TRANSITIONS=161} [2024-11-19 05:58:54,122 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -7 predicate places. [2024-11-19 05:58:54,122 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 161 transitions, 332 flow [2024-11-19 05:58:54,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:54,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:54,123 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:58:54,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:58:54,123 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-19 05:58:54,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:54,124 INFO L85 PathProgramCache]: Analyzing trace with hash 981527663, now seen corresponding path program 1 times [2024-11-19 05:58:54,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:54,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746955407] [2024-11-19 05:58:54,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:54,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:54,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:54,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746955407] [2024-11-19 05:58:54,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746955407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:54,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:54,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:54,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530834562] [2024-11-19 05:58:54,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:54,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:54,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:54,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:54,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:54,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 189 [2024-11-19 05:58:54,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 161 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:54,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:54,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 189 [2024-11-19 05:58:54,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:54,366 INFO L124 PetriNetUnfolderBase]: 174/1118 cut-off events. [2024-11-19 05:58:54,366 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-19 05:58:54,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1443 conditions, 1118 events. 174/1118 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7779 event pairs, 96 based on Foata normal form. 0/961 useless extension candidates. Maximal degree in co-relation 1395. Up to 202 conditions per place. [2024-11-19 05:58:54,373 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 21 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2024-11-19 05:58:54,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 166 transitions, 391 flow [2024-11-19 05:58:54,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:58:54,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:58:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-11-19 05:58:54,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-11-19 05:58:54,375 INFO L175 Difference]: Start difference. First operand has 166 places, 161 transitions, 332 flow. Second operand 3 states and 516 transitions. [2024-11-19 05:58:54,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 166 transitions, 391 flow [2024-11-19 05:58:54,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 166 transitions, 387 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:58:54,379 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 330 flow [2024-11-19 05:58:54,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2024-11-19 05:58:54,380 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -8 predicate places. [2024-11-19 05:58:54,380 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 330 flow [2024-11-19 05:58:54,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:54,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:54,381 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:58:54,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:58:54,382 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-19 05:58:54,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash -14978574, now seen corresponding path program 1 times [2024-11-19 05:58:54,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:54,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408120052] [2024-11-19 05:58:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:54,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:54,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:54,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:54,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408120052] [2024-11-19 05:58:54,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408120052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:54,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:54,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:54,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795566930] [2024-11-19 05:58:54,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:54,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:54,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:54,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:54,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:54,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-11-19 05:58:54,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:54,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:54,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-11-19 05:58:54,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:54,572 INFO L124 PetriNetUnfolderBase]: 121/726 cut-off events. [2024-11-19 05:58:54,572 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-19 05:58:54,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 726 events. 121/726 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4306 event pairs, 42 based on Foata normal form. 0/644 useless extension candidates. Maximal degree in co-relation 656. Up to 119 conditions per place. [2024-11-19 05:58:54,576 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 20 selfloop transitions, 1 changer transitions 0/165 dead transitions. [2024-11-19 05:58:54,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 165 transitions, 385 flow [2024-11-19 05:58:54,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:58:54,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:58:54,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2024-11-19 05:58:54,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9171075837742504 [2024-11-19 05:58:54,578 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 330 flow. Second operand 3 states and 520 transitions. [2024-11-19 05:58:54,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 165 transitions, 385 flow [2024-11-19 05:58:54,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 165 transitions, 381 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:58:54,580 INFO L231 Difference]: Finished difference. Result has 164 places, 159 transitions, 326 flow [2024-11-19 05:58:54,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=164, PETRI_TRANSITIONS=159} [2024-11-19 05:58:54,581 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2024-11-19 05:58:54,581 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 159 transitions, 326 flow [2024-11-19 05:58:54,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:54,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:54,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:58:54,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:58:54,583 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-19 05:58:54,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:54,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1757999451, now seen corresponding path program 1 times [2024-11-19 05:58:54,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:54,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091362993] [2024-11-19 05:58:54,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:54,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:54,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:54,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:54,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091362993] [2024-11-19 05:58:54,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091362993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:54,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:54,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:54,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956334465] [2024-11-19 05:58:54,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:54,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:54,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:54,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:54,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:54,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 189 [2024-11-19 05:58:54,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 159 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:54,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:54,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 189 [2024-11-19 05:58:54,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:54,746 INFO L124 PetriNetUnfolderBase]: 182/790 cut-off events. [2024-11-19 05:58:54,747 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-19 05:58:54,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1145 conditions, 790 events. 182/790 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4630 event pairs, 122 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 745. Up to 220 conditions per place. [2024-11-19 05:58:54,751 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 21 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2024-11-19 05:58:54,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 164 transitions, 385 flow [2024-11-19 05:58:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:58:54,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:58:54,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-11-19 05:58:54,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-11-19 05:58:54,753 INFO L175 Difference]: Start difference. First operand has 164 places, 159 transitions, 326 flow. Second operand 3 states and 516 transitions. [2024-11-19 05:58:54,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 164 transitions, 385 flow [2024-11-19 05:58:54,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 164 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:58:54,756 INFO L231 Difference]: Finished difference. Result has 164 places, 158 transitions, 327 flow [2024-11-19 05:58:54,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=164, PETRI_TRANSITIONS=158} [2024-11-19 05:58:54,758 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2024-11-19 05:58:54,759 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 158 transitions, 327 flow [2024-11-19 05:58:54,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:54,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:54,759 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:58:54,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:58:54,760 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-19 05:58:54,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:54,760 INFO L85 PathProgramCache]: Analyzing trace with hash 248207198, now seen corresponding path program 1 times [2024-11-19 05:58:54,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:54,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390715425] [2024-11-19 05:58:54,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:54,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:54,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:54,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390715425] [2024-11-19 05:58:54,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390715425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:54,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:54,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:54,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615862964] [2024-11-19 05:58:54,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:54,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:54,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:54,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:54,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:54,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-11-19 05:58:54,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 158 transitions, 327 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:54,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:54,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-11-19 05:58:54,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:54,933 INFO L124 PetriNetUnfolderBase]: 138/723 cut-off events. [2024-11-19 05:58:54,934 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-19 05:58:54,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 723 events. 138/723 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4039 event pairs, 54 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 665. Up to 116 conditions per place. [2024-11-19 05:58:54,938 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 20 selfloop transitions, 1 changer transitions 0/163 dead transitions. [2024-11-19 05:58:54,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 163 transitions, 382 flow [2024-11-19 05:58:54,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:58:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:58:54,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2024-11-19 05:58:54,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9171075837742504 [2024-11-19 05:58:54,940 INFO L175 Difference]: Start difference. First operand has 164 places, 158 transitions, 327 flow. Second operand 3 states and 520 transitions. [2024-11-19 05:58:54,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 163 transitions, 382 flow [2024-11-19 05:58:54,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 163 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:58:54,943 INFO L231 Difference]: Finished difference. Result has 163 places, 157 transitions, 323 flow [2024-11-19 05:58:54,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=163, PETRI_TRANSITIONS=157} [2024-11-19 05:58:54,945 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -10 predicate places. [2024-11-19 05:58:54,946 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 157 transitions, 323 flow [2024-11-19 05:58:54,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:54,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:54,946 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:58:54,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:58:54,947 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-19 05:58:54,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:54,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1132937307, now seen corresponding path program 1 times [2024-11-19 05:58:54,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:54,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350488058] [2024-11-19 05:58:54,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:54,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:55,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:55,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:55,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350488058] [2024-11-19 05:58:55,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350488058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:55,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:55,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:55,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741966564] [2024-11-19 05:58:55,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:55,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:55,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:55,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:55,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:55,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 189 [2024-11-19 05:58:55,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 157 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:55,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:55,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 189 [2024-11-19 05:58:55,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:55,184 INFO L124 PetriNetUnfolderBase]: 172/966 cut-off events. [2024-11-19 05:58:55,184 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-19 05:58:55,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 966 events. 172/966 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5866 event pairs, 110 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 1011. Up to 202 conditions per place. [2024-11-19 05:58:55,190 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 21 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-11-19 05:58:55,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 162 transitions, 381 flow [2024-11-19 05:58:55,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:58:55,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:58:55,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-11-19 05:58:55,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-11-19 05:58:55,192 INFO L175 Difference]: Start difference. First operand has 163 places, 157 transitions, 323 flow. Second operand 3 states and 516 transitions. [2024-11-19 05:58:55,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 162 transitions, 381 flow [2024-11-19 05:58:55,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 162 transitions, 380 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:58:55,194 INFO L231 Difference]: Finished difference. Result has 163 places, 156 transitions, 324 flow [2024-11-19 05:58:55,194 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=163, PETRI_TRANSITIONS=156} [2024-11-19 05:58:55,195 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -10 predicate places. [2024-11-19 05:58:55,195 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 156 transitions, 324 flow [2024-11-19 05:58:55,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:55,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:58:55,196 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:58:55,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:58:55,196 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-19 05:58:55,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:58:55,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1277766370, now seen corresponding path program 1 times [2024-11-19 05:58:55,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:58:55,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274110125] [2024-11-19 05:58:55,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:58:55,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:58:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:58:55,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:58:55,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:58:55,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274110125] [2024-11-19 05:58:55,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274110125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:58:55,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:58:55,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:58:55,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249497333] [2024-11-19 05:58:55,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:58:55,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:58:55,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:58:55,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:58:55,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:58:55,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-11-19 05:58:55,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 156 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:55,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:58:55,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-11-19 05:58:55,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:58:55,312 INFO L124 PetriNetUnfolderBase]: 136/869 cut-off events. [2024-11-19 05:58:55,312 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-19 05:58:55,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 869 events. 136/869 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5024 event pairs, 56 based on Foata normal form. 0/782 useless extension candidates. Maximal degree in co-relation 866. Up to 109 conditions per place. [2024-11-19 05:58:55,315 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 0 selfloop transitions, 0 changer transitions 161/161 dead transitions. [2024-11-19 05:58:55,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 161 transitions, 378 flow [2024-11-19 05:58:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:58:55,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:58:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2024-11-19 05:58:55,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9171075837742504 [2024-11-19 05:58:55,317 INFO L175 Difference]: Start difference. First operand has 163 places, 156 transitions, 324 flow. Second operand 3 states and 520 transitions. [2024-11-19 05:58:55,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 161 transitions, 378 flow [2024-11-19 05:58:55,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 161 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:58:55,318 INFO L231 Difference]: Finished difference. Result has 162 places, 0 transitions, 0 flow [2024-11-19 05:58:55,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=162, PETRI_TRANSITIONS=0} [2024-11-19 05:58:55,319 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -11 predicate places. [2024-11-19 05:58:55,319 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 0 transitions, 0 flow [2024-11-19 05:58:55,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:58:55,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 18 remaining) [2024-11-19 05:58:55,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-19 05:58:55,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-19 05:58:55,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-19 05:58:55,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-19 05:58:55,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-19 05:58:55,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-19 05:58:55,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-19 05:58:55,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-19 05:58:55,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-19 05:58:55,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2024-11-19 05:58:55,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2024-11-19 05:58:55,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-19 05:58:55,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-19 05:58:55,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-19 05:58:55,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-19 05:58:55,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-19 05:58:55,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-19 05:58:55,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:58:55,324 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:58:55,328 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 05:58:55,328 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 05:58:55,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:58:55 BasicIcfg [2024-11-19 05:58:55,331 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 05:58:55,332 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 05:58:55,332 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 05:58:55,332 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 05:58:55,332 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:58:52" (3/4) ... [2024-11-19 05:58:55,333 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 05:58:55,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 05:58:55,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 05:58:55,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-19 05:58:55,339 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-19 05:58:55,339 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 05:58:55,339 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 05:58:55,339 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 05:58:55,404 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 05:58:55,405 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 05:58:55,405 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 05:58:55,405 INFO L158 Benchmark]: Toolchain (without parser) took 3275.72ms. Allocated memory was 226.5MB in the beginning and 318.8MB in the end (delta: 92.3MB). Free memory was 158.8MB in the beginning and 156.7MB in the end (delta: 2.1MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. [2024-11-19 05:58:55,405 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 05:58:55,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.06ms. Allocated memory is still 226.5MB. Free memory was 158.6MB in the beginning and 145.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 05:58:55,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.41ms. Allocated memory is still 226.5MB. Free memory was 145.5MB in the beginning and 143.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 05:58:55,406 INFO L158 Benchmark]: Boogie Preprocessor took 54.03ms. Allocated memory is still 226.5MB. Free memory was 143.4MB in the beginning and 142.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 05:58:55,406 INFO L158 Benchmark]: RCFGBuilder took 467.66ms. Allocated memory is still 226.5MB. Free memory was 142.1MB in the beginning and 194.8MB in the end (delta: -52.8MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-11-19 05:58:55,406 INFO L158 Benchmark]: TraceAbstraction took 2354.33ms. Allocated memory was 226.5MB in the beginning and 318.8MB in the end (delta: 92.3MB). Free memory was 194.8MB in the beginning and 162.0MB in the end (delta: 32.8MB). Peak memory consumption was 127.0MB. Max. memory is 16.1GB. [2024-11-19 05:58:55,406 INFO L158 Benchmark]: Witness Printer took 73.09ms. Allocated memory is still 318.8MB. Free memory was 162.0MB in the beginning and 156.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 05:58:55,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.06ms. Allocated memory is still 226.5MB. Free memory was 158.6MB in the beginning and 145.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.41ms. Allocated memory is still 226.5MB. Free memory was 145.5MB in the beginning and 143.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.03ms. Allocated memory is still 226.5MB. Free memory was 143.4MB in the beginning and 142.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 467.66ms. Allocated memory is still 226.5MB. Free memory was 142.1MB in the beginning and 194.8MB in the end (delta: -52.8MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2354.33ms. Allocated memory was 226.5MB in the beginning and 318.8MB in the end (delta: 92.3MB). Free memory was 194.8MB in the beginning and 162.0MB in the end (delta: 32.8MB). Peak memory consumption was 127.0MB. Max. memory is 16.1GB. * Witness Printer took 73.09ms. Allocated memory is still 318.8MB. Free memory was 162.0MB in the beginning and 156.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 264 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 371 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 44 mSDtfsCounter, 371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 588 NumberOfCodeBlocks, 588 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 579 ConstructedInterpolants, 0 QuantifiedInterpolants, 597 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 05:58:55,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE