./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-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 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-atomic/read_write_lock-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 2c3d1ee593e785751e9e5c3782952ba99c521799a37f5a7173fd42ccc2829a1e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:03:53,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:03:53,662 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:03:53,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:03:53,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:03:53,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:03:53,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:03:53,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:03:53,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:03:53,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:03:53,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:03:53,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:03:53,716 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:03:53,717 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:03:53,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:03:53,719 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:03:53,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:03:53,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:03:53,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:03:53,720 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:03:53,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:03:53,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:03:53,726 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:03:53,726 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:03:53,726 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:03:53,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:03:53,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:03:53,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:03:53,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:03:53,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:03:53,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:03:53,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:03:53,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:03:53,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:03:53,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:03:53,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:03:53,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:03:53,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:03:53,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:03:53,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:03:53,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:03:53,731 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c3d1ee593e785751e9e5c3782952ba99c521799a37f5a7173fd42ccc2829a1e [2024-10-24 15:03:53,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:03:54,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:03:54,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:03:54,016 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:03:54,016 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:03:54,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2024-10-24 15:03:55,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:03:55,768 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:03:55,769 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2024-10-24 15:03:55,788 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6f16f480/a99465d11ea2429baf584476bfd682f2/FLAG63fea3fed [2024-10-24 15:03:56,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6f16f480/a99465d11ea2429baf584476bfd682f2 [2024-10-24 15:03:56,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:03:56,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:03:56,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:03:56,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:03:56,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:03:56,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297ffc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56, skipping insertion in model container [2024-10-24 15:03:56,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:03:56,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:03:56,490 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:03:56,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:03:56,569 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:03:56,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56 WrapperNode [2024-10-24 15:03:56,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:03:56,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:03:56,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:03:56,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:03:56,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,616 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2024-10-24 15:03:56,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:03:56,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:03:56,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:03:56,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:03:56,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:03:56,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:03:56,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:03:56,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:03:56,658 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (1/1) ... [2024-10-24 15:03:56,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:03:56,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:03:56,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:03:56,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:03:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-10-24 15:03:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-10-24 15:03:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 15:03:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:03:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-10-24 15:03:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-10-24 15:03:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-10-24 15:03:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:03:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 15:03:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:03:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:03:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-10-24 15:03:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-10-24 15:03:56,752 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:03:56,921 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:03:56,923 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:03:57,150 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:03:57,154 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:03:57,208 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:03:57,209 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:03:57,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:03:57 BoogieIcfgContainer [2024-10-24 15:03:57,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:03:57,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:03:57,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:03:57,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:03:57,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:03:56" (1/3) ... [2024-10-24 15:03:57,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25586f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:03:57, skipping insertion in model container [2024-10-24 15:03:57,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:56" (2/3) ... [2024-10-24 15:03:57,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25586f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:03:57, skipping insertion in model container [2024-10-24 15:03:57,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:03:57" (3/3) ... [2024-10-24 15:03:57,221 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2024-10-24 15:03:57,238 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:03:57,239 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-24 15:03:57,239 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:03:57,332 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-24 15:03:57,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 135 transitions, 298 flow [2024-10-24 15:03:57,452 INFO L124 PetriNetUnfolderBase]: 4/131 cut-off events. [2024-10-24 15:03:57,452 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:03:57,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 131 events. 4/131 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 224 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2024-10-24 15:03:57,459 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 135 transitions, 298 flow [2024-10-24 15:03:57,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 126 transitions, 273 flow [2024-10-24 15:03:57,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:03:57,484 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;@753cb73f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:03:57,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-10-24 15:03:57,504 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:03:57,506 INFO L124 PetriNetUnfolderBase]: 0/45 cut-off events. [2024-10-24 15:03:57,506 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:03:57,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:03:57,507 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] [2024-10-24 15:03:57,508 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:03:57,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:03:57,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1763170502, now seen corresponding path program 1 times [2024-10-24 15:03:57,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:03:57,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954935330] [2024-10-24 15:03:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:03:57,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:03:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:03:57,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:03:57,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:03:57,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954935330] [2024-10-24 15:03:57,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954935330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:03:57,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:03:57,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:03:57,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153340410] [2024-10-24 15:03:57,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:03:57,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:03:57,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:03:57,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:03:57,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:03:57,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 135 [2024-10-24 15:03:57,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 126 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:03:57,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:03:57,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 135 [2024-10-24 15:03:57,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:03:59,885 INFO L124 PetriNetUnfolderBase]: 5880/12092 cut-off events. [2024-10-24 15:03:59,886 INFO L125 PetriNetUnfolderBase]: For 1033/1033 co-relation queries the response was YES. [2024-10-24 15:03:59,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21395 conditions, 12092 events. 5880/12092 cut-off events. For 1033/1033 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 112670 event pairs, 4266 based on Foata normal form. 1107/12159 useless extension candidates. Maximal degree in co-relation 21036. Up to 6922 conditions per place. [2024-10-24 15:03:59,980 INFO L140 encePairwiseOnDemand]: 114/135 looper letters, 40 selfloop transitions, 8 changer transitions 1/132 dead transitions. [2024-10-24 15:03:59,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 132 transitions, 392 flow [2024-10-24 15:03:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:03:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:03:59,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2024-10-24 15:03:59,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8716049382716049 [2024-10-24 15:03:59,999 INFO L175 Difference]: Start difference. First operand has 135 places, 126 transitions, 273 flow. Second operand 3 states and 353 transitions. [2024-10-24 15:03:59,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 132 transitions, 392 flow [2024-10-24 15:04:00,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 132 transitions, 374 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-24 15:04:00,009 INFO L231 Difference]: Finished difference. Result has 122 places, 118 transitions, 291 flow [2024-10-24 15:04:00,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=291, PETRI_PLACES=122, PETRI_TRANSITIONS=118} [2024-10-24 15:04:00,015 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -13 predicate places. [2024-10-24 15:04:00,015 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 118 transitions, 291 flow [2024-10-24 15:04:00,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:00,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:00,016 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:04:00,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:04:00,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:04:00,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:00,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1081744540, now seen corresponding path program 1 times [2024-10-24 15:04:00,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:00,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638614877] [2024-10-24 15:04:00,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:00,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:00,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:04:00,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:00,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638614877] [2024-10-24 15:04:00,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638614877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:00,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:00,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:04:00,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777933414] [2024-10-24 15:04:00,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:00,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:04:00,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:00,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:04:00,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:04:00,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 135 [2024-10-24 15:04:00,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 118 transitions, 291 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:00,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:00,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 135 [2024-10-24 15:04:00,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:00,452 INFO L124 PetriNetUnfolderBase]: 360/1099 cut-off events. [2024-10-24 15:04:00,452 INFO L125 PetriNetUnfolderBase]: For 297/474 co-relation queries the response was YES. [2024-10-24 15:04:00,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 1099 events. 360/1099 cut-off events. For 297/474 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7994 event pairs, 255 based on Foata normal form. 437/1388 useless extension candidates. Maximal degree in co-relation 1307. Up to 584 conditions per place. [2024-10-24 15:04:00,462 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 22 selfloop transitions, 2 changer transitions 2/104 dead transitions. [2024-10-24 15:04:00,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 104 transitions, 313 flow [2024-10-24 15:04:00,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:04:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:04:00,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2024-10-24 15:04:00,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7950617283950617 [2024-10-24 15:04:00,468 INFO L175 Difference]: Start difference. First operand has 122 places, 118 transitions, 291 flow. Second operand 3 states and 322 transitions. [2024-10-24 15:04:00,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 104 transitions, 313 flow [2024-10-24 15:04:00,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 104 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:04:00,474 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 243 flow [2024-10-24 15:04:00,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2024-10-24 15:04:00,475 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -31 predicate places. [2024-10-24 15:04:00,475 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 243 flow [2024-10-24 15:04:00,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:00,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:00,476 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:04:00,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:04:00,477 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:04:00,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:00,478 INFO L85 PathProgramCache]: Analyzing trace with hash 468038780, now seen corresponding path program 2 times [2024-10-24 15:04:00,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:00,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714140586] [2024-10-24 15:04:00,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:00,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:00,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:04:00,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:00,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714140586] [2024-10-24 15:04:00,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714140586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:00,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:00,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:04:00,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542016187] [2024-10-24 15:04:00,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:00,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:04:00,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:00,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:04:00,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:04:00,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 135 [2024-10-24 15:04:00,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:00,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:00,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 135 [2024-10-24 15:04:00,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:00,713 INFO L124 PetriNetUnfolderBase]: 4/105 cut-off events. [2024-10-24 15:04:00,713 INFO L125 PetriNetUnfolderBase]: For 9/14 co-relation queries the response was YES. [2024-10-24 15:04:00,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 105 events. 4/105 cut-off events. For 9/14 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 161 event pairs, 0 based on Foata normal form. 8/110 useless extension candidates. Maximal degree in co-relation 123. Up to 10 conditions per place. [2024-10-24 15:04:00,715 INFO L140 encePairwiseOnDemand]: 131/135 looper letters, 6 selfloop transitions, 1 changer transitions 9/75 dead transitions. [2024-10-24 15:04:00,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 75 transitions, 193 flow [2024-10-24 15:04:00,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:04:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:04:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2024-10-24 15:04:00,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7555555555555555 [2024-10-24 15:04:00,717 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 243 flow. Second operand 3 states and 306 transitions. [2024-10-24 15:04:00,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 75 transitions, 193 flow [2024-10-24 15:04:00,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 75 transitions, 185 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-24 15:04:00,720 INFO L231 Difference]: Finished difference. Result has 83 places, 65 transitions, 140 flow [2024-10-24 15:04:00,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=83, PETRI_TRANSITIONS=65} [2024-10-24 15:04:00,722 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -52 predicate places. [2024-10-24 15:04:00,724 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 65 transitions, 140 flow [2024-10-24 15:04:00,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:00,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:00,725 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:04:00,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:04:00,725 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:04:00,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:00,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1105971513, now seen corresponding path program 1 times [2024-10-24 15:04:00,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:00,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860509428] [2024-10-24 15:04:00,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:00,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:04:00,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:00,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860509428] [2024-10-24 15:04:00,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860509428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:00,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:00,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:04:00,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575047514] [2024-10-24 15:04:00,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:00,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:04:00,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:00,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:04:00,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:04:00,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 135 [2024-10-24 15:04:00,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 65 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:00,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:00,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 135 [2024-10-24 15:04:00,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:00,822 INFO L124 PetriNetUnfolderBase]: 5/76 cut-off events. [2024-10-24 15:04:00,822 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 15:04:00,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 76 events. 5/76 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 85 event pairs, 3 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 82. Up to 14 conditions per place. [2024-10-24 15:04:00,823 INFO L140 encePairwiseOnDemand]: 132/135 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2024-10-24 15:04:00,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 65 transitions, 162 flow [2024-10-24 15:04:00,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:04:00,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:04:00,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2024-10-24 15:04:00,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7160493827160493 [2024-10-24 15:04:00,824 INFO L175 Difference]: Start difference. First operand has 83 places, 65 transitions, 140 flow. Second operand 3 states and 290 transitions. [2024-10-24 15:04:00,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 65 transitions, 162 flow [2024-10-24 15:04:00,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 65 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:04:00,826 INFO L231 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2024-10-24 15:04:00,826 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2024-10-24 15:04:00,827 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -60 predicate places. [2024-10-24 15:04:00,827 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2024-10-24 15:04:00,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:00,830 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2024-10-24 15:04:00,831 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-10-24 15:04:00,831 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-10-24 15:04:00,831 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-10-24 15:04:00,831 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 19 remaining) [2024-10-24 15:04:00,832 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 19 remaining) [2024-10-24 15:04:00,832 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2024-10-24 15:04:00,832 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 19 remaining) [2024-10-24 15:04:00,832 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-10-24 15:04:00,832 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-10-24 15:04:00,833 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-10-24 15:04:00,833 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2024-10-24 15:04:00,833 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-10-24 15:04:00,833 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-10-24 15:04:00,833 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-10-24 15:04:00,834 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-10-24 15:04:00,834 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-10-24 15:04:00,834 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-10-24 15:04:00,834 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-10-24 15:04:00,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:04:00,835 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-10-24 15:04:00,840 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:04:00,841 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:04:00,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:04:00 BasicIcfg [2024-10-24 15:04:00,847 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:04:00,847 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:04:00,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:04:00,848 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:04:00,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:03:57" (3/4) ... [2024-10-24 15:04:00,854 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 15:04:00,857 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2024-10-24 15:04:00,857 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2024-10-24 15:04:00,860 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-24 15:04:00,861 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-24 15:04:00,861 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 15:04:00,862 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 15:04:00,950 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 15:04:00,951 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 15:04:00,951 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:04:00,952 INFO L158 Benchmark]: Toolchain (without parser) took 4897.81ms. Allocated memory was 172.0MB in the beginning and 362.8MB in the end (delta: 190.8MB). Free memory was 136.4MB in the beginning and 199.2MB in the end (delta: -62.8MB). Peak memory consumption was 129.7MB. Max. memory is 16.1GB. [2024-10-24 15:04:00,952 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 172.0MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:04:00,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.75ms. Allocated memory is still 172.0MB. Free memory was 136.4MB in the beginning and 114.3MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 15:04:00,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.95ms. Allocated memory is still 172.0MB. Free memory was 114.3MB in the beginning and 112.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:04:00,953 INFO L158 Benchmark]: Boogie Preprocessor took 36.35ms. Allocated memory is still 172.0MB. Free memory was 112.1MB in the beginning and 110.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:04:00,953 INFO L158 Benchmark]: RCFGBuilder took 555.48ms. Allocated memory is still 172.0MB. Free memory was 110.6MB in the beginning and 92.4MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 15:04:00,954 INFO L158 Benchmark]: TraceAbstraction took 3634.24ms. Allocated memory was 172.0MB in the beginning and 362.8MB in the end (delta: 190.8MB). Free memory was 91.8MB in the beginning and 203.4MB in the end (delta: -111.6MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. [2024-10-24 15:04:00,954 INFO L158 Benchmark]: Witness Printer took 103.97ms. Allocated memory is still 362.8MB. Free memory was 203.4MB in the beginning and 199.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 15:04:00,955 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 172.0MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.75ms. Allocated memory is still 172.0MB. Free memory was 136.4MB in the beginning and 114.3MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.95ms. Allocated memory is still 172.0MB. Free memory was 114.3MB in the beginning and 112.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.35ms. Allocated memory is still 172.0MB. Free memory was 112.1MB in the beginning and 110.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.48ms. Allocated memory is still 172.0MB. Free memory was 110.6MB in the beginning and 92.4MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3634.24ms. Allocated memory was 172.0MB in the beginning and 362.8MB in the end (delta: 190.8MB). Free memory was 91.8MB in the beginning and 203.4MB in the end (delta: -111.6MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. * Witness Printer took 103.97ms. Allocated memory is still 362.8MB. Free memory was 203.4MB in the beginning and 199.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 172 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: 3.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 181 IncrementalHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 20 mSDtfsCounter, 181 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=1, InterpolantAutomatonStates: 12, 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, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 15:04:00,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE