./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/airline-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/airline-25.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0d81069750f24e52e04bdb7efecd6d77b64aec41e058c154f75fbba11e6c11d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:59:55,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:59:55,626 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:59:55,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:59:55,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:59:55,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:59:55,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:59:55,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:59:55,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:59:55,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:59:55,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:59:55,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:59:55,658 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:59:55,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:59:55,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:59:55,659 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:59:55,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:59:55,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:59:55,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:59:55,660 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:59:55,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:59:55,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:59:55,661 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:59:55,662 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:59:55,662 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:59:55,662 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:59:55,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:59:55,663 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:59:55,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:59:55,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:59:55,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:59:55,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:59:55,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:59:55,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:59:55,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:59:55,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:59:55,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:59:55,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:59:55,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:59:55,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:59:55,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:59:55,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0d81069750f24e52e04bdb7efecd6d77b64aec41e058c154f75fbba11e6c11d [2024-11-22 17:59:55,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:59:55,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:59:55,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:59:55,914 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:59:55,914 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:59:55,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/airline-25.i [2024-11-22 17:59:57,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:59:57,639 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:59:57,639 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/airline-25.i [2024-11-22 17:59:57,653 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8347a8801/c06c117b66fb40febe21cda6b78bc502/FLAGd1c102331 [2024-11-22 17:59:57,669 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8347a8801/c06c117b66fb40febe21cda6b78bc502 [2024-11-22 17:59:57,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:59:57,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:59:57,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:59:57,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:59:57,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:59:57,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:59:57" (1/1) ... [2024-11-22 17:59:57,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68209fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:57, skipping insertion in model container [2024-11-22 17:59:57,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:59:57" (1/1) ... [2024-11-22 17:59:57,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:59:58,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:59:58,101 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:59:58,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:59:58,188 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:59:58,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58 WrapperNode [2024-11-22 17:59:58,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:59:58,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:59:58,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:59:58,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:59:58,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,228 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2024-11-22 17:59:58,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:59:58,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:59:58,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:59:58,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:59:58,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:59:58,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:59:58,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:59:58,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:59:58,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (1/1) ... [2024-11-22 17:59:58,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:59:58,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:59:58,301 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) [2024-11-22 17:59:58,310 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 [2024-11-22 17:59:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:59:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:59:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-22 17:59:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:59:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:59:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2024-11-22 17:59:58,356 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2024-11-22 17:59:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:59:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:59:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-22 17:59:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:59:58,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:59:58,358 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:59:58,509 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:59:58,511 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:59:58,726 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:59:58,727 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:59:58,780 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:59:58,780 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 17:59:58,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:59:58 BoogieIcfgContainer [2024-11-22 17:59:58,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:59:58,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:59:58,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:59:58,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:59:58,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:59:57" (1/3) ... [2024-11-22 17:59:58,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e5d1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:59:58, skipping insertion in model container [2024-11-22 17:59:58,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:59:58" (2/3) ... [2024-11-22 17:59:58,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e5d1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:59:58, skipping insertion in model container [2024-11-22 17:59:58,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:59:58" (3/3) ... [2024-11-22 17:59:58,789 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-25.i [2024-11-22 17:59:58,803 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:59:58,803 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-22 17:59:58,803 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:59:58,875 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 17:59:58,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 99 transitions, 205 flow [2024-11-22 17:59:58,978 INFO L124 PetriNetUnfolderBase]: 11/144 cut-off events. [2024-11-22 17:59:58,979 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:59:58,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 11/144 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 307 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 70. Up to 4 conditions per place. [2024-11-22 17:59:58,985 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 99 transitions, 205 flow [2024-11-22 17:59:58,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 99 transitions, 205 flow [2024-11-22 17:59:58,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:59:59,004 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;@5c8f2cf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:59:59,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-22 17:59:59,012 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:59:59,012 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-22 17:59:59,012 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:59:59,012 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:59,013 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:59:59,014 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 17:59:59,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:59,019 INFO L85 PathProgramCache]: Analyzing trace with hash -694234630, now seen corresponding path program 1 times [2024-11-22 17:59:59,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:59,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727368094] [2024-11-22 17:59:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:59,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:59,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:59,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727368094] [2024-11-22 17:59:59,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727368094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:59,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:59,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-22 17:59:59,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060787003] [2024-11-22 17:59:59,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:59,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 17:59:59,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:59,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 17:59:59,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 17:59:59,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 99 [2024-11-22 17:59:59,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 99 transitions, 205 flow. Second operand has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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) [2024-11-22 17:59:59,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:59,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 99 [2024-11-22 17:59:59,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:59,352 INFO L124 PetriNetUnfolderBase]: 3/127 cut-off events. [2024-11-22 17:59:59,355 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-22 17:59:59,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 3/127 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 253 event pairs, 0 based on Foata normal form. 10/121 useless extension candidates. Maximal degree in co-relation 64. Up to 8 conditions per place. [2024-11-22 17:59:59,357 INFO L140 encePairwiseOnDemand]: 90/99 looper letters, 7 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2024-11-22 17:59:59,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 88 transitions, 197 flow [2024-11-22 17:59:59,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 17:59:59,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-22 17:59:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 180 transitions. [2024-11-22 17:59:59,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2024-11-22 17:59:59,374 INFO L175 Difference]: Start difference. First operand has 95 places, 99 transitions, 205 flow. Second operand 2 states and 180 transitions. [2024-11-22 17:59:59,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 88 transitions, 197 flow [2024-11-22 17:59:59,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 197 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:59:59,384 INFO L231 Difference]: Finished difference. Result has 89 places, 88 transitions, 183 flow [2024-11-22 17:59:59,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=183, PETRI_PLACES=89, PETRI_TRANSITIONS=88} [2024-11-22 17:59:59,393 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -6 predicate places. [2024-11-22 17:59:59,393 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 88 transitions, 183 flow [2024-11-22 17:59:59,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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) [2024-11-22 17:59:59,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:59,394 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] [2024-11-22 17:59:59,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:59:59,395 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 17:59:59,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:59,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1899843324, now seen corresponding path program 1 times [2024-11-22 17:59:59,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:59,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573371258] [2024-11-22 17:59:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:59,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:59:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:59:59,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:59:59,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573371258] [2024-11-22 17:59:59,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573371258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:59:59,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:59:59,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:59:59,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246701910] [2024-11-22 17:59:59,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:59:59,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:59:59,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:59:59,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:59:59,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:59:59,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2024-11-22 17:59:59,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2024-11-22 17:59:59,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:59:59,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2024-11-22 17:59:59,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:59:59,625 INFO L124 PetriNetUnfolderBase]: 10/174 cut-off events. [2024-11-22 17:59:59,626 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-22 17:59:59,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 174 events. 10/174 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 441 event pairs, 0 based on Foata normal form. 1/154 useless extension candidates. Maximal degree in co-relation 203. Up to 23 conditions per place. [2024-11-22 17:59:59,627 INFO L140 encePairwiseOnDemand]: 96/99 looper letters, 13 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-11-22 17:59:59,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 217 flow [2024-11-22 17:59:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:59:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:59:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2024-11-22 17:59:59,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8215488215488216 [2024-11-22 17:59:59,630 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 183 flow. Second operand 3 states and 244 transitions. [2024-11-22 17:59:59,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 217 flow [2024-11-22 17:59:59,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 90 transitions, 217 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:59:59,636 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 191 flow [2024-11-22 17:59:59,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2024-11-22 17:59:59,637 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -3 predicate places. [2024-11-22 17:59:59,637 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 191 flow [2024-11-22 17:59:59,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2024-11-22 17:59:59,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:59:59,638 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] [2024-11-22 17:59:59,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:59:59,639 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 17:59:59,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:59:59,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1901875597, now seen corresponding path program 1 times [2024-11-22 17:59:59,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:59:59,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104914557] [2024-11-22 17:59:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:59:59,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:59:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:00,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:00,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:00,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104914557] [2024-11-22 18:00:00,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104914557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:00,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:00,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:00:00,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938783435] [2024-11-22 18:00:00,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:00,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:00:00,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:00,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:00:00,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:00:00,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 99 [2024-11-22 18:00:00,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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) [2024-11-22 18:00:00,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:00,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 99 [2024-11-22 18:00:00,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:00,493 INFO L124 PetriNetUnfolderBase]: 33/198 cut-off events. [2024-11-22 18:00:00,494 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-22 18:00:00,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 198 events. 33/198 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 653 event pairs, 9 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 292. Up to 56 conditions per place. [2024-11-22 18:00:00,498 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 28 selfloop transitions, 5 changer transitions 0/95 dead transitions. [2024-11-22 18:00:00,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 95 transitions, 271 flow [2024-11-22 18:00:00,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:00:00,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:00:00,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 412 transitions. [2024-11-22 18:00:00,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6936026936026936 [2024-11-22 18:00:00,507 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 191 flow. Second operand 6 states and 412 transitions. [2024-11-22 18:00:00,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 95 transitions, 271 flow [2024-11-22 18:00:00,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 95 transitions, 267 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:00,510 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 195 flow [2024-11-22 18:00:00,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=195, PETRI_PLACES=94, PETRI_TRANSITIONS=87} [2024-11-22 18:00:00,511 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -1 predicate places. [2024-11-22 18:00:00,512 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 195 flow [2024-11-22 18:00:00,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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) [2024-11-22 18:00:00,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:00,513 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] [2024-11-22 18:00:00,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:00:00,514 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 18:00:00,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:00,515 INFO L85 PathProgramCache]: Analyzing trace with hash -517437541, now seen corresponding path program 1 times [2024-11-22 18:00:00,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:00,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567351475] [2024-11-22 18:00:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:00,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:00,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:00,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567351475] [2024-11-22 18:00:00,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567351475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:00,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:00,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325555268] [2024-11-22 18:00:00,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:00,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:00,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:00,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:00,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:00,565 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 99 [2024-11-22 18:00:00,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2024-11-22 18:00:00,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:00,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 99 [2024-11-22 18:00:00,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:00,597 INFO L124 PetriNetUnfolderBase]: 1/154 cut-off events. [2024-11-22 18:00:00,598 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-22 18:00:00,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 154 events. 1/154 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 309 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 179. Up to 7 conditions per place. [2024-11-22 18:00:00,599 INFO L140 encePairwiseOnDemand]: 96/99 looper letters, 8 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2024-11-22 18:00:00,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 87 transitions, 218 flow [2024-11-22 18:00:00,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:00,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:00,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2024-11-22 18:00:00,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.835016835016835 [2024-11-22 18:00:00,602 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 195 flow. Second operand 3 states and 248 transitions. [2024-11-22 18:00:00,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 87 transitions, 218 flow [2024-11-22 18:00:00,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 87 transitions, 208 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:00:00,604 INFO L231 Difference]: Finished difference. Result has 90 places, 86 transitions, 187 flow [2024-11-22 18:00:00,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=90, PETRI_TRANSITIONS=86} [2024-11-22 18:00:00,605 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -5 predicate places. [2024-11-22 18:00:00,605 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 86 transitions, 187 flow [2024-11-22 18:00:00,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2024-11-22 18:00:00,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:00,606 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:00,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:00:00,606 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 18:00:00,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:00,607 INFO L85 PathProgramCache]: Analyzing trace with hash -343848704, now seen corresponding path program 1 times [2024-11-22 18:00:00,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:00,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113380731] [2024-11-22 18:00:00,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:00,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:00,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:00,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:00,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113380731] [2024-11-22 18:00:00,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113380731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:00,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:00,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:00,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319646816] [2024-11-22 18:00:00,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:00,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:00,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:00,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:00,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:00,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2024-11-22 18:00:00,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 86 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-11-22 18:00:00,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:00,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2024-11-22 18:00:00,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:00,698 INFO L124 PetriNetUnfolderBase]: 8/228 cut-off events. [2024-11-22 18:00:00,698 INFO L125 PetriNetUnfolderBase]: For 10/18 co-relation queries the response was YES. [2024-11-22 18:00:00,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 228 events. 8/228 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 817 event pairs, 4 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 272. Up to 25 conditions per place. [2024-11-22 18:00:00,700 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 12 selfloop transitions, 4 changer transitions 0/89 dead transitions. [2024-11-22 18:00:00,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 89 transitions, 228 flow [2024-11-22 18:00:00,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:00,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-11-22 18:00:00,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2024-11-22 18:00:00,703 INFO L175 Difference]: Start difference. First operand has 90 places, 86 transitions, 187 flow. Second operand 3 states and 246 transitions. [2024-11-22 18:00:00,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 89 transitions, 228 flow [2024-11-22 18:00:00,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 89 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:00,705 INFO L231 Difference]: Finished difference. Result has 91 places, 88 transitions, 211 flow [2024-11-22 18:00:00,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=91, PETRI_TRANSITIONS=88} [2024-11-22 18:00:00,706 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -4 predicate places. [2024-11-22 18:00:00,706 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 88 transitions, 211 flow [2024-11-22 18:00:00,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-11-22 18:00:00,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:00,707 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] [2024-11-22 18:00:00,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 18:00:00,707 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 18:00:00,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:00,708 INFO L85 PathProgramCache]: Analyzing trace with hash -773710453, now seen corresponding path program 1 times [2024-11-22 18:00:00,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:00,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597651222] [2024-11-22 18:00:00,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:00,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:00,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:00,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597651222] [2024-11-22 18:00:00,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597651222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:00:00,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32278668] [2024-11-22 18:00:00,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:00,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:00:00,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:00:00,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:00:00,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 18:00:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:00,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 18:00:00,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:00:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:00,977 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:00:01,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:01,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32278668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:00:01,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:00:01,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 18:00:01,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081238998] [2024-11-22 18:00:01,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:00:01,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 18:00:01,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:01,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 18:00:01,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 18:00:01,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2024-11-22 18:00:01,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 211 flow. Second operand has 10 states, 10 states have (on average 75.4) internal successors, (754), 10 states have internal predecessors, (754), 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) [2024-11-22 18:00:01,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:01,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2024-11-22 18:00:01,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:01,206 INFO L124 PetriNetUnfolderBase]: 9/101 cut-off events. [2024-11-22 18:00:01,206 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-22 18:00:01,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 101 events. 9/101 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 194 event pairs, 0 based on Foata normal form. 3/100 useless extension candidates. Maximal degree in co-relation 147. Up to 10 conditions per place. [2024-11-22 18:00:01,207 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 15 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2024-11-22 18:00:01,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 59 transitions, 182 flow [2024-11-22 18:00:01,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:00:01,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:00:01,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2024-11-22 18:00:01,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7710437710437711 [2024-11-22 18:00:01,209 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 211 flow. Second operand 6 states and 458 transitions. [2024-11-22 18:00:01,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 59 transitions, 182 flow [2024-11-22 18:00:01,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 59 transitions, 160 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:00:01,211 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 116 flow [2024-11-22 18:00:01,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2024-11-22 18:00:01,212 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -36 predicate places. [2024-11-22 18:00:01,212 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 116 flow [2024-11-22 18:00:01,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.4) internal successors, (754), 10 states have internal predecessors, (754), 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) [2024-11-22 18:00:01,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:01,213 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:01,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 18:00:01,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-22 18:00:01,415 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-22 18:00:01,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:01,415 INFO L85 PathProgramCache]: Analyzing trace with hash -542448446, now seen corresponding path program 1 times [2024-11-22 18:00:01,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:01,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485892299] [2024-11-22 18:00:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:01,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:00:01,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:00:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:00:01,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:00:01,474 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:00:01,476 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-22 18:00:01,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-22 18:00:01,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-22 18:00:01,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-22 18:00:01,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-22 18:00:01,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-22 18:00:01,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-22 18:00:01,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-22 18:00:01,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-22 18:00:01,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-22 18:00:01,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-22 18:00:01,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-22 18:00:01,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-22 18:00:01,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-22 18:00:01,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-22 18:00:01,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 18:00:01,483 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:01,485 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:00:01,485 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 18:00:01,503 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 18:00:01,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 120 transitions, 256 flow [2024-11-22 18:00:01,527 INFO L124 PetriNetUnfolderBase]: 22/256 cut-off events. [2024-11-22 18:00:01,527 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 18:00:01,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 256 events. 22/256 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 600 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 146. Up to 8 conditions per place. [2024-11-22 18:00:01,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 120 transitions, 256 flow [2024-11-22 18:00:01,530 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 120 transitions, 256 flow [2024-11-22 18:00:01,531 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:00:01,532 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;@5c8f2cf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:00:01,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-22 18:00:01,534 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:00:01,534 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-22 18:00:01,534 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:00:01,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:01,534 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:01,535 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:00:01,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:01,535 INFO L85 PathProgramCache]: Analyzing trace with hash 424036858, now seen corresponding path program 1 times [2024-11-22 18:00:01,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:01,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8562968] [2024-11-22 18:00:01,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:01,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:01,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:01,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8562968] [2024-11-22 18:00:01,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8562968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:01,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:01,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-22 18:00:01,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844487404] [2024-11-22 18:00:01,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:01,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 18:00:01,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:01,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 18:00:01,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 18:00:01,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 120 [2024-11-22 18:00:01,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 120 transitions, 256 flow. Second operand has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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) [2024-11-22 18:00:01,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:01,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 120 [2024-11-22 18:00:01,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:01,590 INFO L124 PetriNetUnfolderBase]: 19/254 cut-off events. [2024-11-22 18:00:01,591 INFO L125 PetriNetUnfolderBase]: For 37/43 co-relation queries the response was YES. [2024-11-22 18:00:01,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 254 events. 19/254 cut-off events. For 37/43 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 732 event pairs, 4 based on Foata normal form. 26/246 useless extension candidates. Maximal degree in co-relation 144. Up to 30 conditions per place. [2024-11-22 18:00:01,593 INFO L140 encePairwiseOnDemand]: 109/120 looper letters, 11 selfloop transitions, 0 changer transitions 0/107 dead transitions. [2024-11-22 18:00:01,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 107 transitions, 252 flow [2024-11-22 18:00:01,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 18:00:01,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-22 18:00:01,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 216 transitions. [2024-11-22 18:00:01,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-11-22 18:00:01,598 INFO L175 Difference]: Start difference. First operand has 115 places, 120 transitions, 256 flow. Second operand 2 states and 216 transitions. [2024-11-22 18:00:01,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 107 transitions, 252 flow [2024-11-22 18:00:01,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 107 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:00:01,600 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 230 flow [2024-11-22 18:00:01,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=230, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2024-11-22 18:00:01,604 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -8 predicate places. [2024-11-22 18:00:01,604 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 230 flow [2024-11-22 18:00:01,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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) [2024-11-22 18:00:01,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:01,605 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] [2024-11-22 18:00:01,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 18:00:01,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:00:01,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:01,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1451332092, now seen corresponding path program 1 times [2024-11-22 18:00:01,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:01,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359947921] [2024-11-22 18:00:01,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:01,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:01,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:01,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359947921] [2024-11-22 18:00:01,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359947921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:01,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:01,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:00:01,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145744907] [2024-11-22 18:00:01,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:01,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:01,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:01,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:01,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:01,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2024-11-22 18:00:01,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2024-11-22 18:00:01,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:01,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2024-11-22 18:00:01,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:01,719 INFO L124 PetriNetUnfolderBase]: 60/451 cut-off events. [2024-11-22 18:00:01,720 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-22 18:00:01,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 451 events. 60/451 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2086 event pairs, 24 based on Foata normal form. 1/395 useless extension candidates. Maximal degree in co-relation 568. Up to 97 conditions per place. [2024-11-22 18:00:01,723 INFO L140 encePairwiseOnDemand]: 117/120 looper letters, 18 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2024-11-22 18:00:01,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 110 transitions, 276 flow [2024-11-22 18:00:01,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2024-11-22 18:00:01,725 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2024-11-22 18:00:01,725 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 230 flow. Second operand 3 states and 294 transitions. [2024-11-22 18:00:01,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 110 transitions, 276 flow [2024-11-22 18:00:01,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 110 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:00:01,728 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 242 flow [2024-11-22 18:00:01,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-11-22 18:00:01,729 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -5 predicate places. [2024-11-22 18:00:01,729 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 242 flow [2024-11-22 18:00:01,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2024-11-22 18:00:01,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:01,729 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] [2024-11-22 18:00:01,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 18:00:01,730 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:00:01,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:01,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1947140101, now seen corresponding path program 1 times [2024-11-22 18:00:01,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:01,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566232816] [2024-11-22 18:00:01,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:01,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:01,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:01,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566232816] [2024-11-22 18:00:01,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566232816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:01,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:01,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:00:01,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733045892] [2024-11-22 18:00:01,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:01,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:00:01,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:01,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:00:01,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:00:02,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 120 [2024-11-22 18:00:02,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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) [2024-11-22 18:00:02,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:02,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 120 [2024-11-22 18:00:02,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:02,200 INFO L124 PetriNetUnfolderBase]: 185/628 cut-off events. [2024-11-22 18:00:02,201 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-11-22 18:00:02,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 628 events. 185/628 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3492 event pairs, 55 based on Foata normal form. 0/568 useless extension candidates. Maximal degree in co-relation 974. Up to 214 conditions per place. [2024-11-22 18:00:02,206 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 41 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2024-11-22 18:00:02,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 123 transitions, 364 flow [2024-11-22 18:00:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:00:02,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:00:02,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 514 transitions. [2024-11-22 18:00:02,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7138888888888889 [2024-11-22 18:00:02,210 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 242 flow. Second operand 6 states and 514 transitions. [2024-11-22 18:00:02,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 123 transitions, 364 flow [2024-11-22 18:00:02,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 123 transitions, 362 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:00:02,213 INFO L231 Difference]: Finished difference. Result has 113 places, 107 transitions, 248 flow [2024-11-22 18:00:02,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=248, PETRI_PLACES=113, PETRI_TRANSITIONS=107} [2024-11-22 18:00:02,214 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -2 predicate places. [2024-11-22 18:00:02,214 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 107 transitions, 248 flow [2024-11-22 18:00:02,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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) [2024-11-22 18:00:02,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:02,215 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] [2024-11-22 18:00:02,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 18:00:02,216 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:00:02,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:02,217 INFO L85 PathProgramCache]: Analyzing trace with hash -709870816, now seen corresponding path program 1 times [2024-11-22 18:00:02,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:02,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816203330] [2024-11-22 18:00:02,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:02,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:02,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:02,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816203330] [2024-11-22 18:00:02,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816203330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:02,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:02,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092821713] [2024-11-22 18:00:02,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:02,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:02,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:02,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:02,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2024-11-22 18:00:02,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 107 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2024-11-22 18:00:02,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:02,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2024-11-22 18:00:02,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:02,403 INFO L124 PetriNetUnfolderBase]: 60/772 cut-off events. [2024-11-22 18:00:02,403 INFO L125 PetriNetUnfolderBase]: For 122/386 co-relation queries the response was YES. [2024-11-22 18:00:02,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 772 events. 60/772 cut-off events. For 122/386 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5064 event pairs, 9 based on Foata normal form. 0/651 useless extension candidates. Maximal degree in co-relation 951. Up to 62 conditions per place. [2024-11-22 18:00:02,407 INFO L140 encePairwiseOnDemand]: 112/120 looper letters, 22 selfloop transitions, 6 changer transitions 0/118 dead transitions. [2024-11-22 18:00:02,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 118 transitions, 337 flow [2024-11-22 18:00:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:02,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:02,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2024-11-22 18:00:02,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8416666666666667 [2024-11-22 18:00:02,409 INFO L175 Difference]: Start difference. First operand has 113 places, 107 transitions, 248 flow. Second operand 3 states and 303 transitions. [2024-11-22 18:00:02,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 118 transitions, 337 flow [2024-11-22 18:00:02,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 327 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:00:02,412 INFO L231 Difference]: Finished difference. Result has 112 places, 113 transitions, 290 flow [2024-11-22 18:00:02,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=112, PETRI_TRANSITIONS=113} [2024-11-22 18:00:02,414 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -3 predicate places. [2024-11-22 18:00:02,415 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 113 transitions, 290 flow [2024-11-22 18:00:02,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2024-11-22 18:00:02,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:02,415 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:02,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 18:00:02,416 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:00:02,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:02,416 INFO L85 PathProgramCache]: Analyzing trace with hash 657915091, now seen corresponding path program 1 times [2024-11-22 18:00:02,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:02,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852478966] [2024-11-22 18:00:02,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:02,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:02,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:02,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852478966] [2024-11-22 18:00:02,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852478966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:02,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:02,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:02,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211578986] [2024-11-22 18:00:02,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:02,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:02,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:02,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:02,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:02,457 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 120 [2024-11-22 18:00:02,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 113 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-11-22 18:00:02,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:02,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 120 [2024-11-22 18:00:02,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:02,643 INFO L124 PetriNetUnfolderBase]: 273/1920 cut-off events. [2024-11-22 18:00:02,643 INFO L125 PetriNetUnfolderBase]: For 374/820 co-relation queries the response was YES. [2024-11-22 18:00:02,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2710 conditions, 1920 events. 273/1920 cut-off events. For 374/820 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 16766 event pairs, 93 based on Foata normal form. 1/1652 useless extension candidates. Maximal degree in co-relation 2702. Up to 395 conditions per place. [2024-11-22 18:00:02,658 INFO L140 encePairwiseOnDemand]: 109/120 looper letters, 27 selfloop transitions, 8 changer transitions 0/126 dead transitions. [2024-11-22 18:00:02,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 126 transitions, 405 flow [2024-11-22 18:00:02,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:02,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:02,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-11-22 18:00:02,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-22 18:00:02,660 INFO L175 Difference]: Start difference. First operand has 112 places, 113 transitions, 290 flow. Second operand 3 states and 300 transitions. [2024-11-22 18:00:02,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 126 transitions, 405 flow [2024-11-22 18:00:02,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 126 transitions, 389 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:02,664 INFO L231 Difference]: Finished difference. Result has 114 places, 121 transitions, 348 flow [2024-11-22 18:00:02,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=114, PETRI_TRANSITIONS=121} [2024-11-22 18:00:02,664 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -1 predicate places. [2024-11-22 18:00:02,664 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 121 transitions, 348 flow [2024-11-22 18:00:02,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-11-22 18:00:02,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:02,665 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] [2024-11-22 18:00:02,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 18:00:02,665 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:00:02,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1536806754, now seen corresponding path program 1 times [2024-11-22 18:00:02,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:02,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399196768] [2024-11-22 18:00:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:02,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:02,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:02,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399196768] [2024-11-22 18:00:02,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399196768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:00:02,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161368812] [2024-11-22 18:00:02,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:02,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:00:02,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:00:02,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:00:02,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 18:00:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:02,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 18:00:02,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:00:02,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:02,906 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:00:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:02,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161368812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:00:02,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:00:02,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 18:00:02,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854394009] [2024-11-22 18:00:02,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:00:02,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 18:00:02,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:02,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 18:00:02,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 18:00:03,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 120 [2024-11-22 18:00:03,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 121 transitions, 348 flow. Second operand has 10 states, 10 states have (on average 90.4) internal successors, (904), 10 states have internal predecessors, (904), 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) [2024-11-22 18:00:03,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:03,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 120 [2024-11-22 18:00:03,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:03,213 INFO L124 PetriNetUnfolderBase]: 168/824 cut-off events. [2024-11-22 18:00:03,214 INFO L125 PetriNetUnfolderBase]: For 366/427 co-relation queries the response was YES. [2024-11-22 18:00:03,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 824 events. 168/824 cut-off events. For 366/427 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5933 event pairs, 5 based on Foata normal form. 37/806 useless extension candidates. Maximal degree in co-relation 1449. Up to 104 conditions per place. [2024-11-22 18:00:03,221 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 47 selfloop transitions, 7 changer transitions 0/119 dead transitions. [2024-11-22 18:00:03,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 119 transitions, 508 flow [2024-11-22 18:00:03,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 18:00:03,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 18:00:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 832 transitions. [2024-11-22 18:00:03,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7703703703703704 [2024-11-22 18:00:03,224 INFO L175 Difference]: Start difference. First operand has 114 places, 121 transitions, 348 flow. Second operand 9 states and 832 transitions. [2024-11-22 18:00:03,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 119 transitions, 508 flow [2024-11-22 18:00:03,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 119 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:03,228 INFO L231 Difference]: Finished difference. Result has 88 places, 87 transitions, 260 flow [2024-11-22 18:00:03,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=260, PETRI_PLACES=88, PETRI_TRANSITIONS=87} [2024-11-22 18:00:03,229 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -27 predicate places. [2024-11-22 18:00:03,229 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 87 transitions, 260 flow [2024-11-22 18:00:03,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 90.4) internal successors, (904), 10 states have internal predecessors, (904), 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) [2024-11-22 18:00:03,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:03,230 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:03,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 18:00:03,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-22 18:00:03,431 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:00:03,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:03,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1661324039, now seen corresponding path program 1 times [2024-11-22 18:00:03,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:03,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808807927] [2024-11-22 18:00:03,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:03,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:03,511 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 18:00:03,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:03,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808807927] [2024-11-22 18:00:03,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808807927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:03,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:03,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:00:03,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751386857] [2024-11-22 18:00:03,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:03,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:00:03,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:03,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:00:03,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:00:03,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 120 [2024-11-22 18:00:03,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 87 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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) [2024-11-22 18:00:03,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:03,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 120 [2024-11-22 18:00:03,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:03,584 INFO L124 PetriNetUnfolderBase]: 28/295 cut-off events. [2024-11-22 18:00:03,584 INFO L125 PetriNetUnfolderBase]: For 44/46 co-relation queries the response was YES. [2024-11-22 18:00:03,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 295 events. 28/295 cut-off events. For 44/46 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1438 event pairs, 4 based on Foata normal form. 7/284 useless extension candidates. Maximal degree in co-relation 461. Up to 29 conditions per place. [2024-11-22 18:00:03,587 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 23 selfloop transitions, 6 changer transitions 0/97 dead transitions. [2024-11-22 18:00:03,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 97 transitions, 363 flow [2024-11-22 18:00:03,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:00:03,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 18:00:03,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 493 transitions. [2024-11-22 18:00:03,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8216666666666667 [2024-11-22 18:00:03,589 INFO L175 Difference]: Start difference. First operand has 88 places, 87 transitions, 260 flow. Second operand 5 states and 493 transitions. [2024-11-22 18:00:03,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 97 transitions, 363 flow [2024-11-22 18:00:03,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 97 transitions, 348 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-22 18:00:03,592 INFO L231 Difference]: Finished difference. Result has 89 places, 88 transitions, 280 flow [2024-11-22 18:00:03,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=280, PETRI_PLACES=89, PETRI_TRANSITIONS=88} [2024-11-22 18:00:03,593 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -26 predicate places. [2024-11-22 18:00:03,593 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 88 transitions, 280 flow [2024-11-22 18:00:03,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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) [2024-11-22 18:00:03,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:03,594 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:03,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 18:00:03,594 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:00:03,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:03,594 INFO L85 PathProgramCache]: Analyzing trace with hash 659768417, now seen corresponding path program 1 times [2024-11-22 18:00:03,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:03,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676331394] [2024-11-22 18:00:03,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:03,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:03,688 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 18:00:03,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:03,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676331394] [2024-11-22 18:00:03,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676331394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:03,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:03,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:00:03,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865152315] [2024-11-22 18:00:03,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:03,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:00:03,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:03,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:00:03,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:00:03,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 120 [2024-11-22 18:00:03,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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) [2024-11-22 18:00:03,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:03,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 120 [2024-11-22 18:00:03,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:03,764 INFO L124 PetriNetUnfolderBase]: 22/261 cut-off events. [2024-11-22 18:00:03,764 INFO L125 PetriNetUnfolderBase]: For 108/116 co-relation queries the response was YES. [2024-11-22 18:00:03,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 261 events. 22/261 cut-off events. For 108/116 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1072 event pairs, 4 based on Foata normal form. 12/264 useless extension candidates. Maximal degree in co-relation 449. Up to 33 conditions per place. [2024-11-22 18:00:03,766 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 19 selfloop transitions, 7 changer transitions 0/94 dead transitions. [2024-11-22 18:00:03,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 94 transitions, 361 flow [2024-11-22 18:00:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:00:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 18:00:03,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 489 transitions. [2024-11-22 18:00:03,768 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.815 [2024-11-22 18:00:03,769 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 280 flow. Second operand 5 states and 489 transitions. [2024-11-22 18:00:03,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 94 transitions, 361 flow [2024-11-22 18:00:03,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 94 transitions, 358 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:00:03,772 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 314 flow [2024-11-22 18:00:03,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=314, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2024-11-22 18:00:03,773 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -21 predicate places. [2024-11-22 18:00:03,773 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 314 flow [2024-11-22 18:00:03,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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) [2024-11-22 18:00:03,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:03,773 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:03,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 18:00:03,774 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-22 18:00:03,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:03,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1201801134, now seen corresponding path program 1 times [2024-11-22 18:00:03,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:03,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739526057] [2024-11-22 18:00:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:03,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:00:03,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:00:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:00:03,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:00:03,820 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:00:03,821 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2024-11-22 18:00:03,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-11-22 18:00:03,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-11-22 18:00:03,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-11-22 18:00:03,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-11-22 18:00:03,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-11-22 18:00:03,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2024-11-22 18:00:03,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-11-22 18:00:03,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-11-22 18:00:03,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-11-22 18:00:03,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-11-22 18:00:03,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 19 remaining) [2024-11-22 18:00:03,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-11-22 18:00:03,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-11-22 18:00:03,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-11-22 18:00:03,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-11-22 18:00:03,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-11-22 18:00:03,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-11-22 18:00:03,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-11-22 18:00:03,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 18:00:03,824 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:03,885 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-11-22 18:00:03,885 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 18:00:03,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 06:00:03 BasicIcfg [2024-11-22 18:00:03,890 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 18:00:03,890 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 18:00:03,890 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 18:00:03,891 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 18:00:03,891 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:59:58" (3/4) ... [2024-11-22 18:00:03,892 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-22 18:00:03,963 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 18:00:03,963 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 18:00:03,963 INFO L158 Benchmark]: Toolchain (without parser) took 6290.60ms. Allocated memory was 148.9MB in the beginning and 232.8MB in the end (delta: 83.9MB). Free memory was 91.8MB in the beginning and 146.5MB in the end (delta: -54.8MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-22 18:00:03,963 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 148.9MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 18:00:03,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.89ms. Allocated memory is still 148.9MB. Free memory was 91.4MB in the beginning and 68.2MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-22 18:00:03,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.04ms. Allocated memory is still 148.9MB. Free memory was 68.2MB in the beginning and 66.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 18:00:03,966 INFO L158 Benchmark]: Boogie Preprocessor took 28.86ms. Allocated memory is still 148.9MB. Free memory was 66.3MB in the beginning and 64.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 18:00:03,966 INFO L158 Benchmark]: RCFGBuilder took 522.22ms. Allocated memory is still 148.9MB. Free memory was 64.5MB in the beginning and 45.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-22 18:00:03,967 INFO L158 Benchmark]: TraceAbstraction took 5107.64ms. Allocated memory was 148.9MB in the beginning and 232.8MB in the end (delta: 83.9MB). Free memory was 45.0MB in the beginning and 158.0MB in the end (delta: -113.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 18:00:03,967 INFO L158 Benchmark]: Witness Printer took 72.40ms. Allocated memory is still 232.8MB. Free memory was 158.0MB in the beginning and 146.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-22 18:00:03,968 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 148.9MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.89ms. Allocated memory is still 148.9MB. Free memory was 91.4MB in the beginning and 68.2MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.04ms. Allocated memory is still 148.9MB. Free memory was 68.2MB in the beginning and 66.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.86ms. Allocated memory is still 148.9MB. Free memory was 66.3MB in the beginning and 64.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.22ms. Allocated memory is still 148.9MB. Free memory was 64.5MB in the beginning and 45.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5107.64ms. Allocated memory was 148.9MB in the beginning and 232.8MB in the end (delta: 83.9MB). Free memory was 45.0MB in the beginning and 158.0MB in the end (delta: -113.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 72.40ms. Allocated memory is still 232.8MB. Free memory was 158.0MB in the beginning and 146.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 722]: Data race detected Data race detected The following path leads to a data race: [L717] 0 int numberOfSeatsSold; VAL [numberOfSeatsSold=0] [L718] 0 int stopSales; VAL [numberOfSeatsSold=0, stopSales=0] [L719] 0 int numOfTickets; VAL [numOfTickets=0, numberOfSeatsSold=0, stopSales=0] [L736] 0 pthread_t salethreads[25]; VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, numOfTickets=0, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L738] 0 numOfTickets = 25 VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L741] 0 numberOfSeatsSold = 0 VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L744] 0 stopSales = 0 VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] 0 int i = 0; VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, i=0, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND TRUE 0 i < 25 VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, i=0, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, i=0, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=102, \old(argv)={106:103}, argc=102, i=0, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L721] 1 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L746] 0 i++ VAL [\old(arg)={0:0}, \old(argc)=102, \old(argv)={106:103}, arg={0:0}, argc=102, i=1, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND TRUE 0 i < 25 VAL [\old(arg)={0:0}, \old(argc)=102, \old(argv)={106:103}, arg={0:0}, argc=102, i=1, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=102, \old(argv)={106:103}, arg={0:0}, argc=102, i=1, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=102, \old(argv)={106:103}, arg={0:0}, argc=102, i=1, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L721] 2 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L721] COND TRUE 1 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L721] 2 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L721] COND TRUE 2 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L723] COND FALSE 1 !(_numberOfSeatsSold >= (25 - (((25 / 10) == 0) ? 1 : (25 / 10)))) VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L729] 1 numberOfSeatsSold = _numberOfSeatsSold + 1 VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=25, numberOfSeatsSold=1, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=25, numberOfSeatsSold=1, stopSales=0] Now there is a data race on ~numberOfSeatsSold~0 between C: numberOfSeatsSold = _numberOfSeatsSold + 1 [729] and C: int _numberOfSeatsSold = numberOfSeatsSold; [722] - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 111 locations, 15 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: 2.6s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 136 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 356 IncrementalHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 9 mSDtfsCounter, 356 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=5, InterpolantAutomatonStates: 23, 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, 1.0s InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 270 ConstructedInterpolants, 0 QuantifiedInterpolants, 499 SizeOfPredicates, 2 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 0/3 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 129 locations, 19 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: 2.3s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 317 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 596 IncrementalHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 16 mSDtfsCounter, 596 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=5, InterpolantAutomatonStates: 36, 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, 0.6s InterpolantComputationTime, 412 NumberOfCodeBlocks, 412 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 386 ConstructedInterpolants, 0 QuantifiedInterpolants, 775 SizeOfPredicates, 2 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 22/25 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-22 18:00:03,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE