./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-atomic/peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/peterson.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 6ea11bc1281710e3131473f2a673d7d78c2a42824b03a7d695132107cc74f895 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:05:46,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:05:46,069 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:05:46,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:05:46,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:05:46,098 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:05:46,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:05:46,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:05:46,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:05:46,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:05:46,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:05:46,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:05:46,102 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:05:46,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:05:46,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:05:46,103 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:05:46,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:05:46,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:05:46,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:05:46,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:05:46,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:05:46,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:05:46,107 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:05:46,108 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:05:46,108 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:05:46,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:05:46,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:05:46,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:05:46,109 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:05:46,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:05:46,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:05:46,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:05:46,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:05:46,110 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:05:46,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:05:46,111 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:05:46,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:05:46,111 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:05:46,111 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:05:46,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:05:46,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:05:46,112 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ea11bc1281710e3131473f2a673d7d78c2a42824b03a7d695132107cc74f895 [2024-11-10 14:05:46,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:05:46,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:05:46,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:05:46,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:05:46,310 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:05:46,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/peterson.i [2024-11-10 14:05:46,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:05:48,351 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:05:48,351 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2024-11-10 14:05:48,365 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267519b35/e8342488df6543729b3cd88d977747c5/FLAG7ebac768e [2024-11-10 14:05:48,700 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267519b35/e8342488df6543729b3cd88d977747c5 [2024-11-10 14:05:48,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:05:48,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:05:48,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:05:48,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:05:48,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:05:48,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:05:48" (1/1) ... [2024-11-10 14:05:48,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b888843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:48, skipping insertion in model container [2024-11-10 14:05:48,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:05:48" (1/1) ... [2024-11-10 14:05:48,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:05:49,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:05:49,048 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:05:49,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:05:49,096 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:05:49,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49 WrapperNode [2024-11-10 14:05:49,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:05:49,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:05:49,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:05:49,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:05:49,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,131 INFO L138 Inliner]: procedures = 166, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2024-11-10 14:05:49,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:05:49,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:05:49,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:05:49,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:05:49,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,148 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:05:49,156 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:05:49,156 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:05:49,156 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:05:49,157 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (1/1) ... [2024-11-10 14:05:49,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:05:49,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:05:49,188 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) [2024-11-10 14:05:49,190 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 [2024-11-10 14:05:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-10 14:05:49,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-10 14:05:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-10 14:05:49,230 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-10 14:05:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:05:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:05:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:05:49,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:05:49,231 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:05:49,349 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:05:49,351 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:05:49,459 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:05:49,460 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:05:49,476 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:05:49,477 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:05:49,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:05:49 BoogieIcfgContainer [2024-11-10 14:05:49,477 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:05:49,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:05:49,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:05:49,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:05:49,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:05:48" (1/3) ... [2024-11-10 14:05:49,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f26b50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:05:49, skipping insertion in model container [2024-11-10 14:05:49,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:05:49" (2/3) ... [2024-11-10 14:05:49,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f26b50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:05:49, skipping insertion in model container [2024-11-10 14:05:49,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:05:49" (3/3) ... [2024-11-10 14:05:49,484 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2024-11-10 14:05:49,496 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:05:49,496 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 14:05:49,496 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:05:49,545 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 14:05:49,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 86 transitions, 186 flow [2024-11-10 14:05:49,607 INFO L124 PetriNetUnfolderBase]: 8/84 cut-off events. [2024-11-10 14:05:49,608 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 14:05:49,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 84 events. 8/84 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2024-11-10 14:05:49,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 86 transitions, 186 flow [2024-11-10 14:05:49,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 79 transitions, 167 flow [2024-11-10 14:05:49,626 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:05:49,632 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;@5f792753, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:05:49,632 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-10 14:05:49,643 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:05:49,644 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2024-11-10 14:05:49,645 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:05:49,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:05:49,646 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] [2024-11-10 14:05:49,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:05:49,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:05:49,651 INFO L85 PathProgramCache]: Analyzing trace with hash -2125550417, now seen corresponding path program 1 times [2024-11-10 14:05:49,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:05:49,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000415721] [2024-11-10 14:05:49,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:05:49,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:05:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:05:49,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:05:49,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:05:49,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000415721] [2024-11-10 14:05:49,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000415721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:05:49,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:05:49,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:05:49,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010442637] [2024-11-10 14:05:49,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:05:49,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:05:49,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:05:49,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:05:49,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:05:49,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 86 [2024-11-10 14:05:49,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 79 transitions, 167 flow. Second operand has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 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) [2024-11-10 14:05:49,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:05:49,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 86 [2024-11-10 14:05:49,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:05:49,948 INFO L124 PetriNetUnfolderBase]: 23/209 cut-off events. [2024-11-10 14:05:49,949 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-10 14:05:49,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 209 events. 23/209 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 757 event pairs, 15 based on Foata normal form. 28/201 useless extension candidates. Maximal degree in co-relation 205. Up to 40 conditions per place. [2024-11-10 14:05:49,952 INFO L140 encePairwiseOnDemand]: 80/86 looper letters, 9 selfloop transitions, 0 changer transitions 0/71 dead transitions. [2024-11-10 14:05:49,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 71 transitions, 169 flow [2024-11-10 14:05:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:05:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:05:49,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 155 transitions. [2024-11-10 14:05:49,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9011627906976745 [2024-11-10 14:05:49,965 INFO L175 Difference]: Start difference. First operand has 78 places, 79 transitions, 167 flow. Second operand 2 states and 155 transitions. [2024-11-10 14:05:49,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 71 transitions, 169 flow [2024-11-10 14:05:49,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 71 transitions, 164 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 14:05:49,969 INFO L231 Difference]: Finished difference. Result has 74 places, 71 transitions, 146 flow [2024-11-10 14:05:49,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=146, PETRI_PLACES=74, PETRI_TRANSITIONS=71} [2024-11-10 14:05:49,976 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, -4 predicate places. [2024-11-10 14:05:49,976 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 71 transitions, 146 flow [2024-11-10 14:05:49,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 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) [2024-11-10 14:05:49,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:05:49,977 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] [2024-11-10 14:05:49,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:05:49,978 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:05:49,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:05:49,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1498060276, now seen corresponding path program 1 times [2024-11-10 14:05:49,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:05:49,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620024732] [2024-11-10 14:05:49,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:05:49,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:05:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:05:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:05:50,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:05:50,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620024732] [2024-11-10 14:05:50,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620024732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:05:50,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:05:50,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:05:50,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610927526] [2024-11-10 14:05:50,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:05:50,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:05:50,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:05:50,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:05:50,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:05:50,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 86 [2024-11-10 14:05:50,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2024-11-10 14:05:50,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:05:50,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 86 [2024-11-10 14:05:50,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:05:50,133 INFO L124 PetriNetUnfolderBase]: 67/333 cut-off events. [2024-11-10 14:05:50,133 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:05:50,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 333 events. 67/333 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1657 event pairs, 42 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 489. Up to 113 conditions per place. [2024-11-10 14:05:50,137 INFO L140 encePairwiseOnDemand]: 80/86 looper letters, 20 selfloop transitions, 5 changer transitions 0/79 dead transitions. [2024-11-10 14:05:50,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 79 transitions, 214 flow [2024-11-10 14:05:50,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:05:50,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:05:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2024-11-10 14:05:50,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8217054263565892 [2024-11-10 14:05:50,139 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 146 flow. Second operand 3 states and 212 transitions. [2024-11-10 14:05:50,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 79 transitions, 214 flow [2024-11-10 14:05:50,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 79 transitions, 214 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:05:50,144 INFO L231 Difference]: Finished difference. Result has 78 places, 75 transitions, 184 flow [2024-11-10 14:05:50,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=78, PETRI_TRANSITIONS=75} [2024-11-10 14:05:50,145 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 0 predicate places. [2024-11-10 14:05:50,145 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 184 flow [2024-11-10 14:05:50,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2024-11-10 14:05:50,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:05:50,145 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:05:50,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:05:50,146 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:05:50,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:05:50,147 INFO L85 PathProgramCache]: Analyzing trace with hash 291678130, now seen corresponding path program 1 times [2024-11-10 14:05:50,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:05:50,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769582494] [2024-11-10 14:05:50,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:05:50,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:05:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:05:50,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:05:50,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:05:50,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769582494] [2024-11-10 14:05:50,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769582494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:05:50,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:05:50,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:05:50,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022480617] [2024-11-10 14:05:50,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:05:50,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:05:50,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:05:50,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:05:50,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:05:50,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 86 [2024-11-10 14:05:50,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2024-11-10 14:05:50,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:05:50,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 86 [2024-11-10 14:05:50,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:05:50,298 INFO L124 PetriNetUnfolderBase]: 68/372 cut-off events. [2024-11-10 14:05:50,298 INFO L125 PetriNetUnfolderBase]: For 61/63 co-relation queries the response was YES. [2024-11-10 14:05:50,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 372 events. 68/372 cut-off events. For 61/63 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1935 event pairs, 21 based on Foata normal form. 1/324 useless extension candidates. Maximal degree in co-relation 612. Up to 100 conditions per place. [2024-11-10 14:05:50,302 INFO L140 encePairwiseOnDemand]: 78/86 looper letters, 23 selfloop transitions, 6 changer transitions 4/89 dead transitions. [2024-11-10 14:05:50,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 89 transitions, 289 flow [2024-11-10 14:05:50,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:05:50,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:05:50,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2024-11-10 14:05:50,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8488372093023255 [2024-11-10 14:05:50,304 INFO L175 Difference]: Start difference. First operand has 78 places, 75 transitions, 184 flow. Second operand 3 states and 219 transitions. [2024-11-10 14:05:50,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 89 transitions, 289 flow [2024-11-10 14:05:50,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 89 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:05:50,308 INFO L231 Difference]: Finished difference. Result has 80 places, 78 transitions, 220 flow [2024-11-10 14:05:50,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=80, PETRI_TRANSITIONS=78} [2024-11-10 14:05:50,309 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 2 predicate places. [2024-11-10 14:05:50,309 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 78 transitions, 220 flow [2024-11-10 14:05:50,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2024-11-10 14:05:50,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:05:50,310 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:05:50,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:05:50,310 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:05:50,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:05:50,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1348028082, now seen corresponding path program 1 times [2024-11-10 14:05:50,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:05:50,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108183722] [2024-11-10 14:05:50,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:05:50,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:05:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:05:50,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:05:50,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:05:50,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108183722] [2024-11-10 14:05:50,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108183722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:05:50,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:05:50,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:05:50,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950772452] [2024-11-10 14:05:50,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:05:50,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:05:50,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:05:50,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:05:50,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:05:50,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 86 [2024-11-10 14:05:50,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 78 transitions, 220 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) [2024-11-10 14:05:50,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:05:50,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 86 [2024-11-10 14:05:50,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:05:50,446 INFO L124 PetriNetUnfolderBase]: 88/411 cut-off events. [2024-11-10 14:05:50,446 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2024-11-10 14:05:50,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 411 events. 88/411 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2293 event pairs, 43 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 781. Up to 147 conditions per place. [2024-11-10 14:05:50,448 INFO L140 encePairwiseOnDemand]: 80/86 looper letters, 20 selfloop transitions, 7 changer transitions 3/86 dead transitions. [2024-11-10 14:05:50,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 86 transitions, 303 flow [2024-11-10 14:05:50,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:05:50,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:05:50,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2024-11-10 14:05:50,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8217054263565892 [2024-11-10 14:05:50,450 INFO L175 Difference]: Start difference. First operand has 80 places, 78 transitions, 220 flow. Second operand 3 states and 212 transitions. [2024-11-10 14:05:50,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 86 transitions, 303 flow [2024-11-10 14:05:50,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 86 transitions, 289 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:05:50,455 INFO L231 Difference]: Finished difference. Result has 82 places, 81 transitions, 256 flow [2024-11-10 14:05:50,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=82, PETRI_TRANSITIONS=81} [2024-11-10 14:05:50,458 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 4 predicate places. [2024-11-10 14:05:50,458 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 256 flow [2024-11-10 14:05:50,458 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) [2024-11-10 14:05:50,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:05:50,458 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] [2024-11-10 14:05:50,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:05:50,459 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:05:50,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:05:50,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1339435043, now seen corresponding path program 1 times [2024-11-10 14:05:50,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:05:50,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023927791] [2024-11-10 14:05:50,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:05:50,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:05:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:05:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:05:50,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:05:50,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023927791] [2024-11-10 14:05:50,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023927791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:05:50,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:05:50,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:05:50,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213674228] [2024-11-10 14:05:50,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:05:50,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:05:50,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:05:50,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:05:50,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:05:50,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2024-11-10 14:05:50,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2024-11-10 14:05:50,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:05:50,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2024-11-10 14:05:50,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:05:50,632 INFO L124 PetriNetUnfolderBase]: 56/372 cut-off events. [2024-11-10 14:05:50,632 INFO L125 PetriNetUnfolderBase]: For 126/144 co-relation queries the response was YES. [2024-11-10 14:05:50,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 372 events. 56/372 cut-off events. For 126/144 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1991 event pairs, 12 based on Foata normal form. 1/338 useless extension candidates. Maximal degree in co-relation 686. Up to 49 conditions per place. [2024-11-10 14:05:50,633 INFO L140 encePairwiseOnDemand]: 79/86 looper letters, 16 selfloop transitions, 6 changer transitions 3/92 dead transitions. [2024-11-10 14:05:50,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 92 transitions, 331 flow [2024-11-10 14:05:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:05:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 14:05:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2024-11-10 14:05:50,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8343023255813954 [2024-11-10 14:05:50,635 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 256 flow. Second operand 4 states and 287 transitions. [2024-11-10 14:05:50,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 92 transitions, 331 flow [2024-11-10 14:05:50,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 92 transitions, 317 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:05:50,641 INFO L231 Difference]: Finished difference. Result has 86 places, 86 transitions, 288 flow [2024-11-10 14:05:50,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=86, PETRI_TRANSITIONS=86} [2024-11-10 14:05:50,642 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 8 predicate places. [2024-11-10 14:05:50,643 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 86 transitions, 288 flow [2024-11-10 14:05:50,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2024-11-10 14:05:50,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:05:50,644 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] [2024-11-10 14:05:50,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:05:50,644 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-10 14:05:50,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:05:50,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1207745377, now seen corresponding path program 2 times [2024-11-10 14:05:50,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:05:50,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932478169] [2024-11-10 14:05:50,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:05:50,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:05:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:05:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:05:50,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:05:50,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932478169] [2024-11-10 14:05:50,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932478169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:05:50,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:05:50,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:05:50,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272566312] [2024-11-10 14:05:50,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:05:50,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:05:50,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:05:50,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:05:50,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:05:50,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2024-11-10 14:05:50,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 86 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2024-11-10 14:05:50,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:05:50,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2024-11-10 14:05:50,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:05:50,769 INFO L124 PetriNetUnfolderBase]: 35/197 cut-off events. [2024-11-10 14:05:50,769 INFO L125 PetriNetUnfolderBase]: For 86/88 co-relation queries the response was YES. [2024-11-10 14:05:50,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 197 events. 35/197 cut-off events. For 86/88 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 613 event pairs, 6 based on Foata normal form. 7/194 useless extension candidates. Maximal degree in co-relation 396. Up to 32 conditions per place. [2024-11-10 14:05:50,770 INFO L140 encePairwiseOnDemand]: 79/86 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2024-11-10 14:05:50,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 85 transitions, 333 flow [2024-11-10 14:05:50,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:05:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 14:05:50,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2024-11-10 14:05:50,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8343023255813954 [2024-11-10 14:05:50,772 INFO L175 Difference]: Start difference. First operand has 86 places, 86 transitions, 288 flow. Second operand 4 states and 287 transitions. [2024-11-10 14:05:50,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 85 transitions, 333 flow [2024-11-10 14:05:50,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 85 transitions, 303 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-11-10 14:05:50,775 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2024-11-10 14:05:50,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2024-11-10 14:05:50,776 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 3 predicate places. [2024-11-10 14:05:50,777 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2024-11-10 14:05:50,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2024-11-10 14:05:50,779 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2024-11-10 14:05:50,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-10 14:05:50,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-10 14:05:50,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-10 14:05:50,781 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-10 14:05:50,781 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-10 14:05:50,781 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-11-10 14:05:50,781 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-10 14:05:50,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-10 14:05:50,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-10 14:05:50,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:05:50,784 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-10 14:05:50,788 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 14:05:50,788 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 14:05:50,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:05:50 BasicIcfg [2024-11-10 14:05:50,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 14:05:50,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 14:05:50,793 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 14:05:50,793 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 14:05:50,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:05:49" (3/4) ... [2024-11-10 14:05:50,795 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 14:05:50,798 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-10 14:05:50,798 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-10 14:05:50,800 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-10 14:05:50,801 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-10 14:05:50,801 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 14:05:50,801 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 14:05:50,865 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 14:05:50,865 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 14:05:50,865 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 14:05:50,866 INFO L158 Benchmark]: Toolchain (without parser) took 2163.45ms. Allocated memory was 172.0MB in the beginning and 228.6MB in the end (delta: 56.6MB). Free memory was 92.6MB in the beginning and 149.5MB in the end (delta: -56.9MB). Peak memory consumption was 39.5kB. Max. memory is 16.1GB. [2024-11-10 14:05:50,866 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 172.0MB. Free memory was 129.4MB in the beginning and 129.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:05:50,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.14ms. Allocated memory is still 172.0MB. Free memory was 92.5MB in the beginning and 129.1MB in the end (delta: -36.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-11-10 14:05:50,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.53ms. Allocated memory is still 172.0MB. Free memory was 129.1MB in the beginning and 127.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:05:50,867 INFO L158 Benchmark]: Boogie Preprocessor took 23.62ms. Allocated memory is still 172.0MB. Free memory was 127.0MB in the beginning and 125.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:05:50,867 INFO L158 Benchmark]: IcfgBuilder took 321.66ms. Allocated memory is still 172.0MB. Free memory was 125.9MB in the beginning and 111.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-10 14:05:50,867 INFO L158 Benchmark]: TraceAbstraction took 1313.59ms. Allocated memory was 172.0MB in the beginning and 228.6MB in the end (delta: 56.6MB). Free memory was 110.6MB in the beginning and 153.7MB in the end (delta: -43.1MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-10 14:05:50,868 INFO L158 Benchmark]: Witness Printer took 72.32ms. Allocated memory is still 228.6MB. Free memory was 153.7MB in the beginning and 149.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 14:05:50,871 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 172.0MB. Free memory was 129.4MB in the beginning and 129.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.14ms. Allocated memory is still 172.0MB. Free memory was 92.5MB in the beginning and 129.1MB in the end (delta: -36.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.53ms. Allocated memory is still 172.0MB. Free memory was 129.1MB in the beginning and 127.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.62ms. Allocated memory is still 172.0MB. Free memory was 127.0MB in the beginning and 125.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 321.66ms. Allocated memory is still 172.0MB. Free memory was 125.9MB in the beginning and 111.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1313.59ms. Allocated memory was 172.0MB in the beginning and 228.6MB in the end (delta: 56.6MB). Free memory was 110.6MB in the beginning and 153.7MB in the end (delta: -43.1MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Witness Printer took 72.32ms. Allocated memory is still 228.6MB. Free memory was 153.7MB in the beginning and 149.5MB 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: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: 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 5 procedures, 127 locations, 10 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: 1.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 226 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 25 mSDtfsCounter, 226 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=5, InterpolantAutomatonStates: 19, 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, 0.3s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 14:05:50,892 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