./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-atomic/dekker-unfair.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/dekker-unfair.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 5850bf916a69badaacd3ff4150d219aedc42421ae90c33080aafb727bc040d43 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 08:57:37,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 08:57:37,527 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 08:57:37,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 08:57:37,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 08:57:37,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 08:57:37,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 08:57:37,557 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 08:57:37,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 08:57:37,558 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 08:57:37,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 08:57:37,558 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 08:57:37,559 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:57:37,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 08:57:37,559 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 5850bf916a69badaacd3ff4150d219aedc42421ae90c33080aafb727bc040d43 [2025-02-06 08:57:37,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 08:57:37,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 08:57:37,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 08:57:37,802 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 08:57:37,802 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 08:57:37,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/dekker-unfair.i [2025-02-06 08:57:39,006 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1226d3124/0b0ade1f474c470fb3faeea5b0a7e720/FLAG48ed54b30 [2025-02-06 08:57:39,359 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 08:57:39,359 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker-unfair.i [2025-02-06 08:57:39,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1226d3124/0b0ade1f474c470fb3faeea5b0a7e720/FLAG48ed54b30 [2025-02-06 08:57:39,599 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1226d3124/0b0ade1f474c470fb3faeea5b0a7e720 [2025-02-06 08:57:39,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 08:57:39,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 08:57:39,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 08:57:39,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 08:57:39,611 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 08:57:39,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:57:39" (1/1) ... [2025-02-06 08:57:39,612 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b429eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:39, skipping insertion in model container [2025-02-06 08:57:39,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:57:39" (1/1) ... [2025-02-06 08:57:39,659 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 08:57:40,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:57:40,032 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 08:57:40,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:57:40,151 INFO L204 MainTranslator]: Completed translation [2025-02-06 08:57:40,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40 WrapperNode [2025-02-06 08:57:40,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 08:57:40,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 08:57:40,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 08:57:40,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 08:57:40,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,198 INFO L138 Inliner]: procedures = 167, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 90 [2025-02-06 08:57:40,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 08:57:40,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 08:57:40,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 08:57:40,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 08:57:40,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,205 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,207 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 08:57:40,211 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 08:57:40,211 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 08:57:40,211 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 08:57:40,212 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (1/1) ... [2025-02-06 08:57:40,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:57:40,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:57:40,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 08:57:40,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 08:57:40,275 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2025-02-06 08:57:40,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2025-02-06 08:57:40,275 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 08:57:40,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 08:57:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 08:57:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 08:57:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 08:57:40,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 08:57:40,276 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 08:57:40,387 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 08:57:40,389 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 08:57:40,515 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 08:57:40,515 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 08:57:40,531 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 08:57:40,532 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 08:57:40,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:57:40 BoogieIcfgContainer [2025-02-06 08:57:40,532 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 08:57:40,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 08:57:40,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 08:57:40,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 08:57:40,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 08:57:39" (1/3) ... [2025-02-06 08:57:40,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8768e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:57:40, skipping insertion in model container [2025-02-06 08:57:40,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:57:40" (2/3) ... [2025-02-06 08:57:40,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8768e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:57:40, skipping insertion in model container [2025-02-06 08:57:40,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:57:40" (3/3) ... [2025-02-06 08:57:40,539 INFO L128 eAbstractionObserver]: Analyzing ICFG dekker-unfair.i [2025-02-06 08:57:40,548 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 08:57:40,550 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dekker-unfair.i that has 3 procedures, 92 locations, 1 initial locations, 4 loop locations, and 4 error locations. [2025-02-06 08:57:40,550 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 08:57:40,593 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 08:57:40,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 102 transitions, 218 flow [2025-02-06 08:57:40,682 INFO L124 PetriNetUnfolderBase]: 11/100 cut-off events. [2025-02-06 08:57:40,687 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 08:57:40,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 11/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2025-02-06 08:57:40,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 102 transitions, 218 flow [2025-02-06 08:57:40,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 95 transitions, 199 flow [2025-02-06 08:57:40,707 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:57:40,721 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;@59e7eae1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:57:40,721 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-02-06 08:57:40,737 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:57:40,737 INFO L124 PetriNetUnfolderBase]: 4/48 cut-off events. [2025-02-06 08:57:40,737 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:57:40,737 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:40,738 INFO L206 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] [2025-02-06 08:57:40,738 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-06 08:57:40,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:40,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1496590088, now seen corresponding path program 1 times [2025-02-06 08:57:40,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:40,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112871632] [2025-02-06 08:57:40,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:40,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:40,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 08:57:40,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 08:57:40,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:40,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:41,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:57:41,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:41,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112871632] [2025-02-06 08:57:41,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112871632] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:41,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:41,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:57:41,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978379281] [2025-02-06 08:57:41,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:41,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:57:41,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:41,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:57:41,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:57:41,076 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 102 [2025-02-06 08:57:41,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 95 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2025-02-06 08:57:41,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:41,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 102 [2025-02-06 08:57:41,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:41,166 INFO L124 PetriNetUnfolderBase]: 113/393 cut-off events. [2025-02-06 08:57:41,166 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2025-02-06 08:57:41,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 393 events. 113/393 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1964 event pairs, 57 based on Foata normal form. 39/367 useless extension candidates. Maximal degree in co-relation 553. Up to 165 conditions per place. [2025-02-06 08:57:41,170 INFO L140 encePairwiseOnDemand]: 91/102 looper letters, 26 selfloop transitions, 5 changer transitions 1/98 dead transitions. [2025-02-06 08:57:41,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 98 transitions, 270 flow [2025-02-06 08:57:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:57:41,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:57:41,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2025-02-06 08:57:41,185 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8627450980392157 [2025-02-06 08:57:41,187 INFO L175 Difference]: Start difference. First operand has 91 places, 95 transitions, 199 flow. Second operand 3 states and 264 transitions. [2025-02-06 08:57:41,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 98 transitions, 270 flow [2025-02-06 08:57:41,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 98 transitions, 264 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 08:57:41,196 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 216 flow [2025-02-06 08:57:41,204 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2025-02-06 08:57:41,207 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -1 predicate places. [2025-02-06 08:57:41,207 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 216 flow [2025-02-06 08:57:41,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2025-02-06 08:57:41,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:41,210 INFO L206 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] [2025-02-06 08:57:41,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 08:57:41,210 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-06 08:57:41,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:41,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1139953787, now seen corresponding path program 1 times [2025-02-06 08:57:41,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:41,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716566533] [2025-02-06 08:57:41,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:41,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:41,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 08:57:41,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 08:57:41,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:41,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:41,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:57:41,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:41,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716566533] [2025-02-06 08:57:41,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716566533] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:41,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:41,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:57:41,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235505047] [2025-02-06 08:57:41,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:41,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:57:41,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:41,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:57:41,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:57:41,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 102 [2025-02-06 08:57:41,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2025-02-06 08:57:41,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:41,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 102 [2025-02-06 08:57:41,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:41,400 INFO L124 PetriNetUnfolderBase]: 109/449 cut-off events. [2025-02-06 08:57:41,400 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2025-02-06 08:57:41,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 449 events. 109/449 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2438 event pairs, 28 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 662. Up to 147 conditions per place. [2025-02-06 08:57:41,403 INFO L140 encePairwiseOnDemand]: 94/102 looper letters, 30 selfloop transitions, 6 changer transitions 5/109 dead transitions. [2025-02-06 08:57:41,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 109 transitions, 345 flow [2025-02-06 08:57:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:57:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:57:41,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2025-02-06 08:57:41,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.869281045751634 [2025-02-06 08:57:41,405 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 216 flow. Second operand 3 states and 266 transitions. [2025-02-06 08:57:41,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 109 transitions, 345 flow [2025-02-06 08:57:41,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 109 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 08:57:41,408 INFO L231 Difference]: Finished difference. Result has 91 places, 94 transitions, 252 flow [2025-02-06 08:57:41,409 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=91, PETRI_TRANSITIONS=94} [2025-02-06 08:57:41,409 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 0 predicate places. [2025-02-06 08:57:41,409 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 94 transitions, 252 flow [2025-02-06 08:57:41,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2025-02-06 08:57:41,410 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:41,410 INFO L206 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] [2025-02-06 08:57:41,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 08:57:41,410 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-06 08:57:41,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:41,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1878836249, now seen corresponding path program 1 times [2025-02-06 08:57:41,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:41,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89876157] [2025-02-06 08:57:41,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:41,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:41,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 08:57:41,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 08:57:41,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:41,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:57:41,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:41,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89876157] [2025-02-06 08:57:41,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89876157] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:41,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:41,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:57:41,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599348792] [2025-02-06 08:57:41,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:41,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:57:41,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:41,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:57:41,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:57:41,465 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 102 [2025-02-06 08:57:41,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 94 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2025-02-06 08:57:41,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:41,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 102 [2025-02-06 08:57:41,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:41,530 INFO L124 PetriNetUnfolderBase]: 130/526 cut-off events. [2025-02-06 08:57:41,530 INFO L125 PetriNetUnfolderBase]: For 193/199 co-relation queries the response was YES. [2025-02-06 08:57:41,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 526 events. 130/526 cut-off events. For 193/199 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3064 event pairs, 58 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 891. Up to 207 conditions per place. [2025-02-06 08:57:41,533 INFO L140 encePairwiseOnDemand]: 96/102 looper letters, 25 selfloop transitions, 7 changer transitions 4/104 dead transitions. [2025-02-06 08:57:41,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 104 transitions, 351 flow [2025-02-06 08:57:41,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:57:41,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:57:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2025-02-06 08:57:41,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8398692810457516 [2025-02-06 08:57:41,534 INFO L175 Difference]: Start difference. First operand has 91 places, 94 transitions, 252 flow. Second operand 3 states and 257 transitions. [2025-02-06 08:57:41,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 104 transitions, 351 flow [2025-02-06 08:57:41,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 104 transitions, 337 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 08:57:41,537 INFO L231 Difference]: Finished difference. Result has 93 places, 97 transitions, 288 flow [2025-02-06 08:57:41,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=93, PETRI_TRANSITIONS=97} [2025-02-06 08:57:41,538 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 2 predicate places. [2025-02-06 08:57:41,538 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 97 transitions, 288 flow [2025-02-06 08:57:41,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2025-02-06 08:57:41,539 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:41,539 INFO L206 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] [2025-02-06 08:57:41,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 08:57:41,539 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-06 08:57:41,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash 104394124, now seen corresponding path program 1 times [2025-02-06 08:57:41,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:41,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361457708] [2025-02-06 08:57:41,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:41,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:41,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-06 08:57:41,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-06 08:57:41,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:41,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:41,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:57:41,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:41,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361457708] [2025-02-06 08:57:41,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361457708] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:41,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:41,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 08:57:41,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964228395] [2025-02-06 08:57:41,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:41,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:57:41,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:41,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:57:41,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:57:41,590 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 102 [2025-02-06 08:57:41,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 97 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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) [2025-02-06 08:57:41,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:41,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 102 [2025-02-06 08:57:41,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:41,639 INFO L124 PetriNetUnfolderBase]: 78/455 cut-off events. [2025-02-06 08:57:41,639 INFO L125 PetriNetUnfolderBase]: For 125/131 co-relation queries the response was YES. [2025-02-06 08:57:41,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 455 events. 78/455 cut-off events. For 125/131 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2625 event pairs, 20 based on Foata normal form. 2/403 useless extension candidates. Maximal degree in co-relation 715. Up to 56 conditions per place. [2025-02-06 08:57:41,642 INFO L140 encePairwiseOnDemand]: 97/102 looper letters, 17 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2025-02-06 08:57:41,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 103 transitions, 343 flow [2025-02-06 08:57:41,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:57:41,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:57:41,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2025-02-06 08:57:41,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8660130718954249 [2025-02-06 08:57:41,643 INFO L175 Difference]: Start difference. First operand has 93 places, 97 transitions, 288 flow. Second operand 3 states and 265 transitions. [2025-02-06 08:57:41,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 103 transitions, 343 flow [2025-02-06 08:57:41,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 103 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 08:57:41,646 INFO L231 Difference]: Finished difference. Result has 94 places, 97 transitions, 288 flow [2025-02-06 08:57:41,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=94, PETRI_TRANSITIONS=97} [2025-02-06 08:57:41,647 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 3 predicate places. [2025-02-06 08:57:41,647 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 97 transitions, 288 flow [2025-02-06 08:57:41,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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) [2025-02-06 08:57:41,647 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:41,647 INFO L206 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] [2025-02-06 08:57:41,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 08:57:41,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-06 08:57:41,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:41,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1215910084, now seen corresponding path program 2 times [2025-02-06 08:57:41,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:41,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781816927] [2025-02-06 08:57:41,648 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 08:57:41,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:41,659 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 1 equivalence classes. [2025-02-06 08:57:41,662 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-06 08:57:41,663 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 08:57:41,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:57:41,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:41,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781816927] [2025-02-06 08:57:41,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781816927] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:41,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:41,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 08:57:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938924010] [2025-02-06 08:57:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:41,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:57:41,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:41,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:57:41,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:57:41,697 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 102 [2025-02-06 08:57:41,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 97 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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) [2025-02-06 08:57:41,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:41,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 102 [2025-02-06 08:57:41,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:41,758 INFO L124 PetriNetUnfolderBase]: 55/262 cut-off events. [2025-02-06 08:57:41,758 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2025-02-06 08:57:41,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 262 events. 55/262 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 935 event pairs, 14 based on Foata normal form. 3/237 useless extension candidates. Maximal degree in co-relation 367. Up to 48 conditions per place. [2025-02-06 08:57:41,759 INFO L140 encePairwiseOnDemand]: 97/102 looper letters, 0 selfloop transitions, 0 changer transitions 91/91 dead transitions. [2025-02-06 08:57:41,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 91 transitions, 298 flow [2025-02-06 08:57:41,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:57:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:57:41,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2025-02-06 08:57:41,761 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8660130718954249 [2025-02-06 08:57:41,761 INFO L175 Difference]: Start difference. First operand has 94 places, 97 transitions, 288 flow. Second operand 3 states and 265 transitions. [2025-02-06 08:57:41,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 91 transitions, 298 flow [2025-02-06 08:57:41,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 91 transitions, 252 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-06 08:57:41,765 INFO L231 Difference]: Finished difference. Result has 86 places, 0 transitions, 0 flow [2025-02-06 08:57:41,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=86, PETRI_TRANSITIONS=0} [2025-02-06 08:57:41,767 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -5 predicate places. [2025-02-06 08:57:41,767 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 0 transitions, 0 flow [2025-02-06 08:57:41,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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) [2025-02-06 08:57:41,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2025-02-06 08:57:41,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2025-02-06 08:57:41,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2025-02-06 08:57:41,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2025-02-06 08:57:41,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2025-02-06 08:57:41,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2025-02-06 08:57:41,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2025-02-06 08:57:41,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2025-02-06 08:57:41,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2025-02-06 08:57:41,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2025-02-06 08:57:41,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 08:57:41,774 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-02-06 08:57:41,779 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 08:57:41,780 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 08:57:41,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 08:57:41 BasicIcfg [2025-02-06 08:57:41,786 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 08:57:41,786 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 08:57:41,786 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 08:57:41,787 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 08:57:41,787 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:57:40" (3/4) ... [2025-02-06 08:57:41,788 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 08:57:41,790 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thr2 [2025-02-06 08:57:41,790 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thr1 [2025-02-06 08:57:41,793 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-06 08:57:41,793 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 08:57:41,793 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 08:57:41,793 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 08:57:41,848 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 08:57:41,849 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 08:57:41,849 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 08:57:41,850 INFO L158 Benchmark]: Toolchain (without parser) took 2247.39ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 123.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2025-02-06 08:57:41,850 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 226.5MB. Free memory is still 140.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 08:57:41,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.07ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 112.0MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 08:57:41,851 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.09ms. Allocated memory is still 167.8MB. Free memory was 112.0MB in the beginning and 110.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 08:57:41,851 INFO L158 Benchmark]: Boogie Preprocessor took 11.15ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 109.1MB in the end (delta: 991.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 08:57:41,852 INFO L158 Benchmark]: IcfgBuilder took 321.11ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 94.3MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 08:57:41,852 INFO L158 Benchmark]: TraceAbstraction took 1252.29ms. Allocated memory is still 167.8MB. Free memory was 93.8MB in the beginning and 128.0MB in the end (delta: -34.2MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2025-02-06 08:57:41,853 INFO L158 Benchmark]: Witness Printer took 62.65ms. Allocated memory is still 167.8MB. Free memory was 128.0MB in the beginning and 123.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 08:57:41,854 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 226.5MB. Free memory is still 140.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.07ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 112.0MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.09ms. Allocated memory is still 167.8MB. Free memory was 112.0MB in the beginning and 110.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.15ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 109.1MB in the end (delta: 991.9kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 321.11ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 94.3MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1252.29ms. Allocated memory is still 167.8MB. Free memory was 93.8MB in the beginning and 128.0MB in the end (delta: -34.2MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Witness Printer took 62.65ms. Allocated memory is still 167.8MB. Free memory was 128.0MB in the beginning and 123.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 773]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 774]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 759]: 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, 146 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: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 32 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 0.2s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 08:57:41,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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