./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-theta/unwind3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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-theta/unwind3-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac23e7ddc6ad8a4019915da456e24c280b09a2b1564c0f5287e162f39d98d7fe --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:14:25,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:14:25,062 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 22:14:25,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:14:25,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:14:25,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:14:25,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:14:25,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:14:25,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:14:25,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:14:25,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:14:25,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:14:25,095 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:14:25,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:14:25,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:14:25,096 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:14:25,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:14:25,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:14:25,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:14:25,097 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:14:25,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:14:25,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:14:25,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:14:25,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:14:25,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:14:25,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:14:25,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:14:25,097 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/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 -> ac23e7ddc6ad8a4019915da456e24c280b09a2b1564c0f5287e162f39d98d7fe [2025-03-08 22:14:25,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:14:25,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:14:25,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:14:25,357 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:14:25,357 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:14:25,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind3-1.i [2025-03-08 22:14:26,545 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddbe0add5/7e1cbe0260e14c6c9abc5cde17d24872/FLAGf9a80ee9c [2025-03-08 22:14:26,884 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:14:26,885 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind3-1.i [2025-03-08 22:14:26,900 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddbe0add5/7e1cbe0260e14c6c9abc5cde17d24872/FLAGf9a80ee9c [2025-03-08 22:14:26,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddbe0add5/7e1cbe0260e14c6c9abc5cde17d24872 [2025-03-08 22:14:26,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:14:26,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:14:26,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:14:26,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:14:26,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:14:26,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:14:26" (1/1) ... [2025-03-08 22:14:26,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75fb4247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:26, skipping insertion in model container [2025-03-08 22:14:26,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:14:26" (1/1) ... [2025-03-08 22:14:26,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:14:27,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:14:27,139 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:14:27,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:14:27,192 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:14:27,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27 WrapperNode [2025-03-08 22:14:27,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:14:27,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:14:27,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:14:27,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:14:27,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,217 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 80 [2025-03-08 22:14:27,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:14:27,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:14:27,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:14:27,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:14:27,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,231 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:14:27,242 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:14:27,242 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:14:27,242 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:14:27,242 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (1/1) ... [2025-03-08 22:14:27,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:14:27,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:14:27,273 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) [2025-03-08 22:14:27,275 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 [2025-03-08 22:14:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:14:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2025-03-08 22:14:27,291 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2025-03-08 22:14:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2025-03-08 22:14:27,291 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2025-03-08 22:14:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 22:14:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:14:27,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:14:27,292 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 22:14:27,375 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:14:27,377 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:14:27,489 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:14:27,489 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:14:27,504 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:14:27,504 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:14:27,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:14:27 BoogieIcfgContainer [2025-03-08 22:14:27,504 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:14:27,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:14:27,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:14:27,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:14:27,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:14:26" (1/3) ... [2025-03-08 22:14:27,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a206ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:14:27, skipping insertion in model container [2025-03-08 22:14:27,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:14:27" (2/3) ... [2025-03-08 22:14:27,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a206ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:14:27, skipping insertion in model container [2025-03-08 22:14:27,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:14:27" (3/3) ... [2025-03-08 22:14:27,511 INFO L128 eAbstractionObserver]: Analyzing ICFG unwind3-1.i [2025-03-08 22:14:27,523 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:14:27,524 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind3-1.i that has 3 procedures, 99 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2025-03-08 22:14:27,524 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:14:27,568 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-08 22:14:27,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 105 transitions, 218 flow [2025-03-08 22:14:27,651 INFO L124 PetriNetUnfolderBase]: 10/154 cut-off events. [2025-03-08 22:14:27,654 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:14:27,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 154 events. 10/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 269 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 92. Up to 4 conditions per place. [2025-03-08 22:14:27,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 105 transitions, 218 flow [2025-03-08 22:14:27,661 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 88 transitions, 183 flow [2025-03-08 22:14:27,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:14:27,675 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;@342eea8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:14:27,675 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-08 22:14:27,682 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:14:27,684 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2025-03-08 22:14:27,685 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:14:27,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:14:27,685 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:14:27,685 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:14:27,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:14:27,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1019133262, now seen corresponding path program 1 times [2025-03-08 22:14:27,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:14:27,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764566786] [2025-03-08 22:14:27,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:14:27,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:14:27,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-08 22:14:27,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-08 22:14:27,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:14:27,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:14:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:14:27,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:14:27,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764566786] [2025-03-08 22:14:27,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764566786] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:14:27,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:14:27,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:14:27,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873310310] [2025-03-08 22:14:27,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:14:27,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:14:27,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:14:27,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:14:27,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:14:27,879 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 105 [2025-03-08 22:14:27,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2025-03-08 22:14:27,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:14:27,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 105 [2025-03-08 22:14:27,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:14:27,925 INFO L124 PetriNetUnfolderBase]: 11/144 cut-off events. [2025-03-08 22:14:27,926 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-08 22:14:27,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 144 events. 11/144 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 295 event pairs, 8 based on Foata normal form. 1/128 useless extension candidates. Maximal degree in co-relation 101. Up to 33 conditions per place. [2025-03-08 22:14:27,927 INFO L140 encePairwiseOnDemand]: 100/105 looper letters, 13 selfloop transitions, 2 changer transitions 1/85 dead transitions. [2025-03-08 22:14:27,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 85 transitions, 207 flow [2025-03-08 22:14:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:14:27,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:14:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2025-03-08 22:14:27,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2025-03-08 22:14:27,939 INFO L175 Difference]: Start difference. First operand has 90 places, 88 transitions, 183 flow. Second operand 3 states and 270 transitions. [2025-03-08 22:14:27,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 85 transitions, 207 flow [2025-03-08 22:14:27,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 85 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 22:14:27,949 INFO L231 Difference]: Finished difference. Result has 90 places, 84 transitions, 178 flow [2025-03-08 22:14:27,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=90, PETRI_TRANSITIONS=84} [2025-03-08 22:14:27,956 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2025-03-08 22:14:27,956 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 84 transitions, 178 flow [2025-03-08 22:14:27,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2025-03-08 22:14:27,957 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:14:27,957 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:14:27,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:14:27,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:14:27,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:14:27,958 INFO L85 PathProgramCache]: Analyzing trace with hash 124929558, now seen corresponding path program 1 times [2025-03-08 22:14:27,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:14:27,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638240212] [2025-03-08 22:14:27,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:14:27,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:14:27,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-08 22:14:27,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-08 22:14:27,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:14:27,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:14:28,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:14:28,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:14:28,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638240212] [2025-03-08 22:14:28,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638240212] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:14:28,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:14:28,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:14:28,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548947656] [2025-03-08 22:14:28,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:14:28,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:14:28,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:14:28,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:14:28,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:14:28,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 105 [2025-03-08 22:14:28,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:14:28,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:14:28,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 105 [2025-03-08 22:14:28,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:14:28,088 INFO L124 PetriNetUnfolderBase]: 7/126 cut-off events. [2025-03-08 22:14:28,089 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-08 22:14:28,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 126 events. 7/126 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 4 based on Foata normal form. 3/121 useless extension candidates. Maximal degree in co-relation 144. Up to 25 conditions per place. [2025-03-08 22:14:28,089 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 11 selfloop transitions, 1 changer transitions 24/79 dead transitions. [2025-03-08 22:14:28,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 79 transitions, 196 flow [2025-03-08 22:14:28,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:14:28,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:14:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2025-03-08 22:14:28,094 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2025-03-08 22:14:28,094 INFO L175 Difference]: Start difference. First operand has 90 places, 84 transitions, 178 flow. Second operand 3 states and 259 transitions. [2025-03-08 22:14:28,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 79 transitions, 196 flow [2025-03-08 22:14:28,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:14:28,095 INFO L231 Difference]: Finished difference. Result has 84 places, 55 transitions, 116 flow [2025-03-08 22:14:28,095 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=84, PETRI_TRANSITIONS=55} [2025-03-08 22:14:28,096 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -6 predicate places. [2025-03-08 22:14:28,096 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 55 transitions, 116 flow [2025-03-08 22:14:28,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:14:28,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:14:28,097 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:14:28,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:14:28,097 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:14:28,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:14:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1155517015, now seen corresponding path program 1 times [2025-03-08 22:14:28,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:14:28,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651591445] [2025-03-08 22:14:28,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:14:28,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:14:28,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-08 22:14:28,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-08 22:14:28,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:14:28,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:14:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:14:28,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:14:28,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651591445] [2025-03-08 22:14:28,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651591445] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:14:28,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:14:28,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:14:28,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356519496] [2025-03-08 22:14:28,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:14:28,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:14:28,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:14:28,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:14:28,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:14:28,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 105 [2025-03-08 22:14:28,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 55 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2025-03-08 22:14:28,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:14:28,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 105 [2025-03-08 22:14:28,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:14:28,347 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2025-03-08 22:14:28,348 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 22:14:28,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 61 events. 0/61 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2025-03-08 22:14:28,348 INFO L140 encePairwiseOnDemand]: 101/105 looper letters, 7 selfloop transitions, 3 changer transitions 0/54 dead transitions. [2025-03-08 22:14:28,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 134 flow [2025-03-08 22:14:28,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:14:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-08 22:14:28,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2025-03-08 22:14:28,367 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8547619047619047 [2025-03-08 22:14:28,367 INFO L175 Difference]: Start difference. First operand has 84 places, 55 transitions, 116 flow. Second operand 4 states and 359 transitions. [2025-03-08 22:14:28,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 134 flow [2025-03-08 22:14:28,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 133 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 22:14:28,368 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 119 flow [2025-03-08 22:14:28,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2025-03-08 22:14:28,369 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -29 predicate places. [2025-03-08 22:14:28,369 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 119 flow [2025-03-08 22:14:28,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2025-03-08 22:14:28,369 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:14:28,369 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:14:28,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:14:28,370 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:14:28,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:14:28,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1276553398, now seen corresponding path program 1 times [2025-03-08 22:14:28,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:14:28,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085699499] [2025-03-08 22:14:28,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:14:28,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:14:28,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 22:14:28,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 22:14:28,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:14:28,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:14:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:14:28,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:14:28,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085699499] [2025-03-08 22:14:28,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085699499] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:14:28,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:14:28,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:14:28,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778472478] [2025-03-08 22:14:28,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:14:28,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:14:28,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:14:28,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:14:28,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:14:28,540 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 105 [2025-03-08 22:14:28,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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) [2025-03-08 22:14:28,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:14:28,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 105 [2025-03-08 22:14:28,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:14:28,556 INFO L124 PetriNetUnfolderBase]: 1/60 cut-off events. [2025-03-08 22:14:28,556 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 22:14:28,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 60 events. 1/60 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 2/61 useless extension candidates. Maximal degree in co-relation 56. Up to 4 conditions per place. [2025-03-08 22:14:28,557 INFO L140 encePairwiseOnDemand]: 101/105 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2025-03-08 22:14:28,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 138 flow [2025-03-08 22:14:28,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:14:28,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-08 22:14:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 446 transitions. [2025-03-08 22:14:28,558 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8495238095238096 [2025-03-08 22:14:28,559 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 119 flow. Second operand 5 states and 446 transitions. [2025-03-08 22:14:28,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 138 flow [2025-03-08 22:14:28,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 131 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-08 22:14:28,559 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2025-03-08 22:14:28,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2025-03-08 22:14:28,560 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -30 predicate places. [2025-03-08 22:14:28,560 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2025-03-08 22:14:28,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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) [2025-03-08 22:14:28,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-03-08 22:14:28,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-03-08 22:14:28,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-03-08 22:14:28,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-03-08 22:14:28,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2025-03-08 22:14:28,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2025-03-08 22:14:28,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2025-03-08 22:14:28,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-03-08 22:14:28,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-03-08 22:14:28,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:14:28,564 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-08 22:14:28,571 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 22:14:28,571 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 22:14:28,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 10:14:28 BasicIcfg [2025-03-08 22:14:28,574 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 22:14:28,575 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 22:14:28,575 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 22:14:28,575 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 22:14:28,576 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:14:27" (3/4) ... [2025-03-08 22:14:28,577 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 22:14:28,579 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f1 [2025-03-08 22:14:28,579 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f2 [2025-03-08 22:14:28,581 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-08 22:14:28,582 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 22:14:28,582 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-08 22:14:28,583 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 22:14:28,634 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 22:14:28,635 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 22:14:28,635 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 22:14:28,635 INFO L158 Benchmark]: Toolchain (without parser) took 1716.28ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 124.7MB in the end (delta: 33.2MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2025-03-08 22:14:28,636 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 209.7MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:14:28,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.58ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 137.7MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 22:14:28,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.54ms. Allocated memory is still 201.3MB. Free memory was 137.7MB in the beginning and 135.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 22:14:28,637 INFO L158 Benchmark]: Boogie Preprocessor took 23.08ms. Allocated memory is still 201.3MB. Free memory was 135.9MB in the beginning and 135.2MB in the end (delta: 740.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:14:28,637 INFO L158 Benchmark]: IcfgBuilder took 262.88ms. Allocated memory is still 201.3MB. Free memory was 135.2MB in the beginning and 120.6MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 22:14:28,638 INFO L158 Benchmark]: TraceAbstraction took 1068.02ms. Allocated memory is still 201.3MB. Free memory was 120.0MB in the beginning and 130.2MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:14:28,638 INFO L158 Benchmark]: Witness Printer took 59.85ms. Allocated memory is still 201.3MB. Free memory was 130.2MB in the beginning and 124.7MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 22:14:28,639 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 209.7MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.58ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 137.7MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.54ms. Allocated memory is still 201.3MB. Free memory was 137.7MB in the beginning and 135.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.08ms. Allocated memory is still 201.3MB. Free memory was 135.9MB in the beginning and 135.2MB in the end (delta: 740.0kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 262.88ms. Allocated memory is still 201.3MB. Free memory was 135.2MB in the beginning and 120.6MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1068.02ms. Allocated memory is still 201.3MB. Free memory was 120.0MB in the beginning and 130.2MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.85ms. Allocated memory is still 201.3MB. Free memory was 130.2MB in the beginning and 124.7MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 770]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 772]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 773]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 766]: 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, 134 locations, 141 edges, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 13 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=0, 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 22:14:28,651 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