./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/fkp2013-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/fkp2013-1.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 ac100ce7c66b3266dc643fb77471441d693f59fe8c56e13ccaa684a73cdda8b0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:39:31,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:39:31,072 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:39:31,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:39:31,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:39:31,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:39:31,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:39:31,100 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:39:31,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:39:31,101 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:39:31,102 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:39:31,102 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:39:31,102 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:39:31,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:39:31,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:39:31,104 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:39:31,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:39:31,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:39:31,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:39:31,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:39:31,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:39:31,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:39:31,108 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:39:31,108 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:39:31,108 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:39:31,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:39:31,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:39:31,109 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:39:31,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:39:31,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:39:31,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:39:31,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:39:31,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:39:31,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:39:31,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:39:31,110 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:39:31,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:39:31,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:39:31,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:39:31,110 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:39:31,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:39:31,111 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac100ce7c66b3266dc643fb77471441d693f59fe8c56e13ccaa684a73cdda8b0 [2024-11-20 13:39:31,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:39:31,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:39:31,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:39:31,295 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:39:31,296 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:39:31,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/fkp2013-1.i [2024-11-20 13:39:32,481 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:39:32,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:39:32,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/fkp2013-1.i [2024-11-20 13:39:32,685 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8286fc1a4/e5c38783ff32494e96fa81b1ccf9f9ed/FLAG337bf250d [2024-11-20 13:39:33,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8286fc1a4/e5c38783ff32494e96fa81b1ccf9f9ed [2024-11-20 13:39:33,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:39:33,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:39:33,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:39:33,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:39:33,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:39:33,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c685499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33, skipping insertion in model container [2024-11-20 13:39:33,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:39:33,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:39:33,385 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:39:33,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:39:33,460 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:39:33,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33 WrapperNode [2024-11-20 13:39:33,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:39:33,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:39:33,462 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:39:33,462 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:39:33,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,527 INFO L138 Inliner]: procedures = 171, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-11-20 13:39:33,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:39:33,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:39:33,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:39:33,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:39:33,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:39:33,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:39:33,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:39:33,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:39:33,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (1/1) ... [2024-11-20 13:39:33,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:39:33,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:39:33,604 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) [2024-11-20 13:39:33,607 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 [2024-11-20 13:39:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-20 13:39:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-20 13:39:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-20 13:39:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-20 13:39:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:39:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:39:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:39:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:39:33,644 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:39:33,724 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:39:33,726 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:39:33,854 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:39:33,854 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:39:33,870 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:39:33,871 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 13:39:33,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:39:33 BoogieIcfgContainer [2024-11-20 13:39:33,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:39:33,872 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:39:33,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:39:33,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:39:33,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:39:33" (1/3) ... [2024-11-20 13:39:33,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7725f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:39:33, skipping insertion in model container [2024-11-20 13:39:33,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:39:33" (2/3) ... [2024-11-20 13:39:33,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7725f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:39:33, skipping insertion in model container [2024-11-20 13:39:33,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:39:33" (3/3) ... [2024-11-20 13:39:33,878 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2013-1.i [2024-11-20 13:39:33,891 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:39:33,891 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-20 13:39:33,891 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:39:33,947 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:39:33,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 166 flow [2024-11-20 13:39:34,014 INFO L124 PetriNetUnfolderBase]: 4/89 cut-off events. [2024-11-20 13:39:34,014 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:39:34,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 89 events. 4/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 148 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 67. Up to 4 conditions per place. [2024-11-20 13:39:34,020 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 166 flow [2024-11-20 13:39:34,022 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 163 flow [2024-11-20 13:39:34,032 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:39:34,037 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;@555a5eab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:39:34,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-20 13:39:34,048 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:39:34,048 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-20 13:39:34,048 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:39:34,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:39:34,049 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:39:34,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-20 13:39:34,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:39:34,058 INFO L85 PathProgramCache]: Analyzing trace with hash 492523335, now seen corresponding path program 1 times [2024-11-20 13:39:34,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:39:34,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588200039] [2024-11-20 13:39:34,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:39:34,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:39:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:39:34,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:39:34,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:39:34,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588200039] [2024-11-20 13:39:34,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588200039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:39:34,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:39:34,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:39:34,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7017843] [2024-11-20 13:39:34,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:39:34,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:39:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:39:34,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:39:34,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:39:34,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 79 [2024-11-20 13:39:34,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-11-20 13:39:34,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:39:34,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 79 [2024-11-20 13:39:34,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:39:34,317 INFO L124 PetriNetUnfolderBase]: 11/187 cut-off events. [2024-11-20 13:39:34,317 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 13:39:34,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 187 events. 11/187 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 717 event pairs, 11 based on Foata normal form. 18/178 useless extension candidates. Maximal degree in co-relation 194. Up to 31 conditions per place. [2024-11-20 13:39:34,319 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 9 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-11-20 13:39:34,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 72 transitions, 173 flow [2024-11-20 13:39:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:39:34,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:39:34,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2024-11-20 13:39:34,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8607594936708861 [2024-11-20 13:39:34,329 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 163 flow. Second operand 3 states and 204 transitions. [2024-11-20 13:39:34,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 72 transitions, 173 flow [2024-11-20 13:39:34,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 72 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:39:34,334 INFO L231 Difference]: Finished difference. Result has 79 places, 72 transitions, 154 flow [2024-11-20 13:39:34,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=79, PETRI_TRANSITIONS=72} [2024-11-20 13:39:34,338 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, -2 predicate places. [2024-11-20 13:39:34,338 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 72 transitions, 154 flow [2024-11-20 13:39:34,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-11-20 13:39:34,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:39:34,339 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] [2024-11-20 13:39:34,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:39:34,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-20 13:39:34,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:39:34,339 INFO L85 PathProgramCache]: Analyzing trace with hash 612279905, now seen corresponding path program 1 times [2024-11-20 13:39:34,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:39:34,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399566085] [2024-11-20 13:39:34,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:39:34,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:39:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:39:34,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:39:34,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:39:34,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399566085] [2024-11-20 13:39:34,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399566085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:39:34,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:39:34,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:39:34,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972391426] [2024-11-20 13:39:34,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:39:34,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:39:34,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:39:34,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:39:34,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:39:34,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 79 [2024-11-20 13:39:34,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-20 13:39:34,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:39:34,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 79 [2024-11-20 13:39:34,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:39:34,450 INFO L124 PetriNetUnfolderBase]: 7/165 cut-off events. [2024-11-20 13:39:34,450 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-20 13:39:34,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 165 events. 7/165 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 620 event pairs, 3 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 179. Up to 19 conditions per place. [2024-11-20 13:39:34,451 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 9 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-11-20 13:39:34,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 75 transitions, 189 flow [2024-11-20 13:39:34,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:39:34,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:39:34,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-11-20 13:39:34,453 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8860759493670886 [2024-11-20 13:39:34,453 INFO L175 Difference]: Start difference. First operand has 79 places, 72 transitions, 154 flow. Second operand 3 states and 210 transitions. [2024-11-20 13:39:34,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 75 transitions, 189 flow [2024-11-20 13:39:34,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 185 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:39:34,455 INFO L231 Difference]: Finished difference. Result has 80 places, 74 transitions, 178 flow [2024-11-20 13:39:34,455 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=80, PETRI_TRANSITIONS=74} [2024-11-20 13:39:34,456 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, -1 predicate places. [2024-11-20 13:39:34,456 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 74 transitions, 178 flow [2024-11-20 13:39:34,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-20 13:39:34,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:39:34,457 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:39:34,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:39:34,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-20 13:39:34,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:39:34,457 INFO L85 PathProgramCache]: Analyzing trace with hash 217715466, now seen corresponding path program 1 times [2024-11-20 13:39:34,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:39:34,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981747890] [2024-11-20 13:39:34,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:39:34,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:39:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:39:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:39:34,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:39:34,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981747890] [2024-11-20 13:39:34,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981747890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:39:34,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:39:34,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:39:34,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568588574] [2024-11-20 13:39:34,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:39:34,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:39:34,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:39:34,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:39:34,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:39:34,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 79 [2024-11-20 13:39:34,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2024-11-20 13:39:34,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:39:34,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 79 [2024-11-20 13:39:34,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:39:34,611 INFO L124 PetriNetUnfolderBase]: 6/179 cut-off events. [2024-11-20 13:39:34,612 INFO L125 PetriNetUnfolderBase]: For 23/25 co-relation queries the response was YES. [2024-11-20 13:39:34,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 179 events. 6/179 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 654 event pairs, 2 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 218. Up to 23 conditions per place. [2024-11-20 13:39:34,614 INFO L140 encePairwiseOnDemand]: 74/79 looper letters, 11 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-11-20 13:39:34,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 77 transitions, 218 flow [2024-11-20 13:39:34,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:39:34,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:39:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-20 13:39:34,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8818565400843882 [2024-11-20 13:39:34,616 INFO L175 Difference]: Start difference. First operand has 80 places, 74 transitions, 178 flow. Second operand 3 states and 209 transitions. [2024-11-20 13:39:34,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 77 transitions, 218 flow [2024-11-20 13:39:34,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:39:34,619 INFO L231 Difference]: Finished difference. Result has 82 places, 77 transitions, 202 flow [2024-11-20 13:39:34,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2024-11-20 13:39:34,620 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 1 predicate places. [2024-11-20 13:39:34,620 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 202 flow [2024-11-20 13:39:34,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2024-11-20 13:39:34,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:39:34,620 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:39:34,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:39:34,621 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-20 13:39:34,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:39:34,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1414451964, now seen corresponding path program 1 times [2024-11-20 13:39:34,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:39:34,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33059045] [2024-11-20 13:39:34,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:39:34,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:39:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:39:34,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:39:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:39:34,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:39:34,673 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:39:34,674 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-20 13:39:34,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-20 13:39:34,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-20 13:39:34,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-20 13:39:34,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-20 13:39:34,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2024-11-20 13:39:34,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-20 13:39:34,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-20 13:39:34,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-20 13:39:34,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:39:34,678 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 13:39:34,680 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:39:34,681 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 13:39:34,708 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:39:34,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 114 transitions, 248 flow [2024-11-20 13:39:34,725 INFO L124 PetriNetUnfolderBase]: 5/120 cut-off events. [2024-11-20 13:39:34,725 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:39:34,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 120 events. 5/120 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 205 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 127. Up to 6 conditions per place. [2024-11-20 13:39:34,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 114 transitions, 248 flow [2024-11-20 13:39:34,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 93 transitions, 199 flow [2024-11-20 13:39:34,730 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:39:34,730 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;@555a5eab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:39:34,730 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-20 13:39:34,732 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:39:34,732 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-20 13:39:34,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:39:34,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:39:34,733 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:39:34,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:39:34,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:39:34,733 INFO L85 PathProgramCache]: Analyzing trace with hash -139489401, now seen corresponding path program 1 times [2024-11-20 13:39:34,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:39:34,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984914760] [2024-11-20 13:39:34,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:39:34,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:39:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:39:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:39:34,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:39:34,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984914760] [2024-11-20 13:39:34,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984914760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:39:34,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:39:34,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:39:34,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145906473] [2024-11-20 13:39:34,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:39:34,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:39:34,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:39:34,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:39:34,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:39:34,820 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 114 [2024-11-20 13:39:34,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-11-20 13:39:34,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:39:34,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 114 [2024-11-20 13:39:34,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:39:34,886 INFO L124 PetriNetUnfolderBase]: 65/495 cut-off events. [2024-11-20 13:39:34,886 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-20 13:39:34,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 495 events. 65/495 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2957 event pairs, 65 based on Foata normal form. 56/469 useless extension candidates. Maximal degree in co-relation 610. Up to 121 conditions per place. [2024-11-20 13:39:34,893 INFO L140 encePairwiseOnDemand]: 108/114 looper letters, 12 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2024-11-20 13:39:34,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 87 transitions, 215 flow [2024-11-20 13:39:34,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:39:34,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:39:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2024-11-20 13:39:34,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2024-11-20 13:39:34,895 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 199 flow. Second operand 3 states and 288 transitions. [2024-11-20 13:39:34,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 87 transitions, 215 flow [2024-11-20 13:39:34,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 87 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:39:34,898 INFO L231 Difference]: Finished difference. Result has 96 places, 87 transitions, 190 flow [2024-11-20 13:39:34,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=96, PETRI_TRANSITIONS=87} [2024-11-20 13:39:34,899 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, -2 predicate places. [2024-11-20 13:39:34,899 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 87 transitions, 190 flow [2024-11-20 13:39:34,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-11-20 13:39:34,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:39:34,900 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] [2024-11-20 13:39:34,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:39:34,900 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:39:34,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:39:34,901 INFO L85 PathProgramCache]: Analyzing trace with hash 831466125, now seen corresponding path program 1 times [2024-11-20 13:39:34,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:39:34,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497051665] [2024-11-20 13:39:34,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:39:34,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:39:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:39:34,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:39:34,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:39:34,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497051665] [2024-11-20 13:39:34,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497051665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:39:34,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:39:34,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:39:34,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439293703] [2024-11-20 13:39:34,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:39:34,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:39:34,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:39:34,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:39:34,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:39:34,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 114 [2024-11-20 13:39:34,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 87 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-20 13:39:34,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:39:34,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 114 [2024-11-20 13:39:34,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:39:35,024 INFO L124 PetriNetUnfolderBase]: 97/647 cut-off events. [2024-11-20 13:39:35,028 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-20 13:39:35,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 647 events. 97/647 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4274 event pairs, 36 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 885. Up to 142 conditions per place. [2024-11-20 13:39:35,034 INFO L140 encePairwiseOnDemand]: 103/114 looper letters, 17 selfloop transitions, 8 changer transitions 0/97 dead transitions. [2024-11-20 13:39:35,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 97 transitions, 268 flow [2024-11-20 13:39:35,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:39:35,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:39:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-11-20 13:39:35,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8538011695906432 [2024-11-20 13:39:35,036 INFO L175 Difference]: Start difference. First operand has 96 places, 87 transitions, 190 flow. Second operand 3 states and 292 transitions. [2024-11-20 13:39:35,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 97 transitions, 268 flow [2024-11-20 13:39:35,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 97 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:39:35,038 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 256 flow [2024-11-20 13:39:35,039 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-11-20 13:39:35,039 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2024-11-20 13:39:35,040 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 256 flow [2024-11-20 13:39:35,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-20 13:39:35,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:39:35,041 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:39:35,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:39:35,041 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:39:35,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:39:35,041 INFO L85 PathProgramCache]: Analyzing trace with hash 488728117, now seen corresponding path program 1 times [2024-11-20 13:39:35,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:39:35,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243130397] [2024-11-20 13:39:35,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:39:35,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:39:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:39:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:39:35,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:39:35,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243130397] [2024-11-20 13:39:35,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243130397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:39:35,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:39:35,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:39:35,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224750890] [2024-11-20 13:39:35,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:39:35,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:39:35,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:39:35,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:39:35,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:39:35,114 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 114 [2024-11-20 13:39:35,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2024-11-20 13:39:35,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:39:35,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 114 [2024-11-20 13:39:35,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:39:35,252 INFO L124 PetriNetUnfolderBase]: 200/1033 cut-off events. [2024-11-20 13:39:35,252 INFO L125 PetriNetUnfolderBase]: For 386/394 co-relation queries the response was YES. [2024-11-20 13:39:35,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 1033 events. 200/1033 cut-off events. For 386/394 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7980 event pairs, 61 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 1834. Up to 255 conditions per place. [2024-11-20 13:39:35,260 INFO L140 encePairwiseOnDemand]: 107/114 looper letters, 17 selfloop transitions, 10 changer transitions 0/104 dead transitions. [2024-11-20 13:39:35,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 104 transitions, 351 flow [2024-11-20 13:39:35,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:39:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:39:35,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2024-11-20 13:39:35,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8654970760233918 [2024-11-20 13:39:35,263 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 256 flow. Second operand 3 states and 296 transitions. [2024-11-20 13:39:35,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 104 transitions, 351 flow [2024-11-20 13:39:35,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 104 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:39:35,268 INFO L231 Difference]: Finished difference. Result has 100 places, 103 transitions, 326 flow [2024-11-20 13:39:35,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=100, PETRI_TRANSITIONS=103} [2024-11-20 13:39:35,269 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 2 predicate places. [2024-11-20 13:39:35,270 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 103 transitions, 326 flow [2024-11-20 13:39:35,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2024-11-20 13:39:35,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:39:35,271 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] [2024-11-20 13:39:35,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:39:35,271 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:39:35,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:39:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash 610723637, now seen corresponding path program 1 times [2024-11-20 13:39:35,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:39:35,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798727639] [2024-11-20 13:39:35,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:39:35,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:39:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:39:35,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:39:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:39:35,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:39:35,298 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:39:35,298 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2024-11-20 13:39:35,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-20 13:39:35,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-20 13:39:35,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-20 13:39:35,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-20 13:39:35,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2024-11-20 13:39:35,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-20 13:39:35,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-20 13:39:35,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-20 13:39:35,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-20 13:39:35,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-20 13:39:35,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-20 13:39:35,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:39:35,303 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 13:39:35,343 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-11-20 13:39:35,343 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 13:39:35,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:39:35 BasicIcfg [2024-11-20 13:39:35,349 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 13:39:35,349 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 13:39:35,349 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 13:39:35,349 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 13:39:35,350 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:39:33" (3/4) ... [2024-11-20 13:39:35,350 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-20 13:39:35,387 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 13:39:35,387 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 13:39:35,387 INFO L158 Benchmark]: Toolchain (without parser) took 2332.20ms. Allocated memory is still 190.8MB. Free memory was 122.9MB in the beginning and 117.6MB in the end (delta: 5.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2024-11-20 13:39:35,387 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 13:39:35,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.76ms. Allocated memory is still 190.8MB. Free memory was 122.7MB in the beginning and 100.8MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-20 13:39:35,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.77ms. Allocated memory is still 190.8MB. Free memory was 100.8MB in the beginning and 163.6MB in the end (delta: -62.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-11-20 13:39:35,388 INFO L158 Benchmark]: Boogie Preprocessor took 46.63ms. Allocated memory is still 190.8MB. Free memory was 163.6MB in the beginning and 161.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:39:35,388 INFO L158 Benchmark]: RCFGBuilder took 296.02ms. Allocated memory is still 190.8MB. Free memory was 161.8MB in the beginning and 148.1MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 13:39:35,388 INFO L158 Benchmark]: TraceAbstraction took 1476.58ms. Allocated memory is still 190.8MB. Free memory was 148.0MB in the beginning and 125.1MB in the end (delta: 22.9MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-20 13:39:35,388 INFO L158 Benchmark]: Witness Printer took 37.65ms. Allocated memory is still 190.8MB. Free memory was 125.1MB in the beginning and 117.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-20 13:39:35,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.76ms. Allocated memory is still 190.8MB. Free memory was 122.7MB in the beginning and 100.8MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.77ms. Allocated memory is still 190.8MB. Free memory was 100.8MB in the beginning and 163.6MB in the end (delta: -62.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.63ms. Allocated memory is still 190.8MB. Free memory was 163.6MB in the beginning and 161.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 296.02ms. Allocated memory is still 190.8MB. Free memory was 161.8MB in the beginning and 148.1MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1476.58ms. Allocated memory is still 190.8MB. Free memory was 148.0MB in the beginning and 125.1MB in the end (delta: 22.9MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 37.65ms. Allocated memory is still 190.8MB. Free memory was 125.1MB in the beginning and 117.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 699]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; VAL [x=0] [L709] 0 pthread_t t1, t2; VAL [\old(argc)=52, \old(argv)={49:51}, argc=52, x=0] [L710] 0 int i; VAL [\old(argc)=52, \old(argv)={49:51}, argc=52, x=0] [L711] 0 x = 0 VAL [\old(argc)=52, \old(argv)={49:51}, argc=52, x=0] [L712] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=52, \old(argv)={49:51}, argc=52, t1=-1, x=0] [L713] 0 i = 0 VAL [\old(argc)=52, \old(argv)={49:51}, argc=52, i=0, t1=-1, x=0] [L713] COND TRUE 0 i < 50 VAL [\old(argc)=52, \old(argv)={49:51}, argc=52, i=0, t1=-1, x=0] [L714] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(arg)={0:0}, \old(argc)=52, \old(argv)={49:51}, argc=52, i=0, t1=-1, t2=0, x=0] [L699] 1 x < 50 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, x=0] [L703] 2 int t; VAL [\old(arg)={0:0}, arg={0:0}, x=0] [L704] 2 t = x VAL [\old(arg)={0:0}, arg={0:0}, t=0, x=0] [L705] 2 x = t + 1 VAL [\old(arg)={0:0}, arg={0:0}, t=0, x=1] [L699] 1 x < 50 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, t=0, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [705] and C: x < 50 [699] - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: 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. - UnprovableResult [Line: 712]: 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 5 procedures, 111 locations, 9 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: 0.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 20 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 144 locations, 12 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: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 8 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-20 13:39:35,408 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