./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_27-base_rc.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/goblint-regression/04-mutex_27-base_rc.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 b91c0e76ead39d37c0c1e44d79e923c90b028e42d77a4818013a56c3d1542d8d --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 21:57:01,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 21:57:02,035 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 21:57:02,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 21:57:02,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 21:57:02,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 21:57:02,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 21:57:02,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 21:57:02,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 21:57:02,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 21:57:02,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 21:57:02,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 21:57:02,060 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 21:57:02,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 21:57:02,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 21:57:02,060 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 21:57:02,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 21:57:02,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 21:57:02,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 21:57:02,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 21:57:02,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 21:57:02,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 21:57:02,060 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 21:57:02,061 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:57:02,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 21:57:02,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 21:57:02,061 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 -> b91c0e76ead39d37c0c1e44d79e923c90b028e42d77a4818013a56c3d1542d8d [2025-03-08 21:57:02,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 21:57:02,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 21:57:02,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 21:57:02,295 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 21:57:02,295 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 21:57:02,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_27-base_rc.i [2025-03-08 21:57:03,511 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4fd7d5fc/80d29150c41d4909b57dc12b2a8363d8/FLAG4f49bda42 [2025-03-08 21:57:03,824 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 21:57:03,826 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_27-base_rc.i [2025-03-08 21:57:03,841 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4fd7d5fc/80d29150c41d4909b57dc12b2a8363d8/FLAG4f49bda42 [2025-03-08 21:57:03,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4fd7d5fc/80d29150c41d4909b57dc12b2a8363d8 [2025-03-08 21:57:03,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 21:57:03,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 21:57:03,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 21:57:03,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 21:57:03,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 21:57:03,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:57:03" (1/1) ... [2025-03-08 21:57:03,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6cbbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:03, skipping insertion in model container [2025-03-08 21:57:03,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:57:03" (1/1) ... [2025-03-08 21:57:03,902 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 21:57:04,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:57:04,146 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 21:57:04,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:57:04,213 INFO L204 MainTranslator]: Completed translation [2025-03-08 21:57:04,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04 WrapperNode [2025-03-08 21:57:04,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 21:57:04,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 21:57:04,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 21:57:04,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 21:57:04,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,249 INFO L138 Inliner]: procedures = 265, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 92 [2025-03-08 21:57:04,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 21:57:04,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 21:57:04,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 21:57:04,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 21:57:04,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,266 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 21:57:04,273 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 21:57:04,273 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 21:57:04,273 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 21:57:04,274 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (1/1) ... [2025-03-08 21:57:04,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:57:04,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:04,304 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 21:57:04,307 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 21:57:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 21:57:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 21:57:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 21:57:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-08 21:57:04,323 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-08 21:57:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 21:57:04,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 21:57:04,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 21:57:04,325 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 21:57:04,422 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 21:57:04,424 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 21:57:04,593 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 21:57:04,593 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 21:57:04,616 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 21:57:04,616 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 21:57:04,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:04 BoogieIcfgContainer [2025-03-08 21:57:04,616 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 21:57:04,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 21:57:04,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 21:57:04,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 21:57:04,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:57:03" (1/3) ... [2025-03-08 21:57:04,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343811bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:57:04, skipping insertion in model container [2025-03-08 21:57:04,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:04" (2/3) ... [2025-03-08 21:57:04,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343811bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:57:04, skipping insertion in model container [2025-03-08 21:57:04,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:04" (3/3) ... [2025-03-08 21:57:04,624 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_27-base_rc.i [2025-03-08 21:57:04,633 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 21:57:04,634 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_27-base_rc.i that has 2 procedures, 97 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2025-03-08 21:57:04,634 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 21:57:04,687 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-08 21:57:04,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 97 transitions, 198 flow [2025-03-08 21:57:04,745 INFO L124 PetriNetUnfolderBase]: 1/96 cut-off events. [2025-03-08 21:57:04,747 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:04,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 96 events. 1/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2025-03-08 21:57:04,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 97 transitions, 198 flow [2025-03-08 21:57:04,753 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 96 transitions, 195 flow [2025-03-08 21:57:04,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 21:57:04,771 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;@1203e096, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 21:57:04,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-08 21:57:04,785 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 21:57:04,785 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2025-03-08 21:57:04,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:04,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:04,786 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] [2025-03-08 21:57:04,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-08 21:57:04,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash -624273322, now seen corresponding path program 1 times [2025-03-08 21:57:04,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:04,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259913267] [2025-03-08 21:57:04,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:04,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:04,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-08 21:57:04,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-08 21:57:04,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:04,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:05,006 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 21:57:05,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:05,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259913267] [2025-03-08 21:57:05,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259913267] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:05,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:05,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:05,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458582296] [2025-03-08 21:57:05,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:05,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:05,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:05,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:05,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:05,048 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 97 [2025-03-08 21:57:05,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 195 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 21:57:05,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:05,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 97 [2025-03-08 21:57:05,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:05,195 INFO L124 PetriNetUnfolderBase]: 50/453 cut-off events. [2025-03-08 21:57:05,196 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 21:57:05,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 453 events. 50/453 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2681 event pairs, 8 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 537. Up to 57 conditions per place. [2025-03-08 21:57:05,202 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 19 selfloop transitions, 3 changer transitions 0/105 dead transitions. [2025-03-08 21:57:05,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 105 transitions, 257 flow [2025-03-08 21:57:05,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:05,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2025-03-08 21:57:05,217 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9450171821305842 [2025-03-08 21:57:05,218 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 195 flow. Second operand 3 states and 275 transitions. [2025-03-08 21:57:05,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 105 transitions, 257 flow [2025-03-08 21:57:05,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 105 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:05,226 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 216 flow [2025-03-08 21:57:05,227 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2025-03-08 21:57:05,232 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places. [2025-03-08 21:57:05,233 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 216 flow [2025-03-08 21:57:05,233 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 21:57:05,234 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:05,234 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] [2025-03-08 21:57:05,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 21:57:05,235 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-08 21:57:05,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:05,236 INFO L85 PathProgramCache]: Analyzing trace with hash 449150242, now seen corresponding path program 1 times [2025-03-08 21:57:05,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:05,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260701398] [2025-03-08 21:57:05,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:05,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:05,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-08 21:57:05,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-08 21:57:05,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:05,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:05,325 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 21:57:05,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:05,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260701398] [2025-03-08 21:57:05,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260701398] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:05,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:05,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:05,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273814589] [2025-03-08 21:57:05,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:05,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:05,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:05,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:05,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:05,349 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2025-03-08 21:57:05,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 21:57:05,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:05,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2025-03-08 21:57:05,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:05,429 INFO L124 PetriNetUnfolderBase]: 84/597 cut-off events. [2025-03-08 21:57:05,429 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-03-08 21:57:05,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 597 events. 84/597 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4008 event pairs, 52 based on Foata normal form. 0/528 useless extension candidates. Maximal degree in co-relation 795. Up to 149 conditions per place. [2025-03-08 21:57:05,433 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 20 selfloop transitions, 5 changer transitions 0/105 dead transitions. [2025-03-08 21:57:05,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 105 transitions, 284 flow [2025-03-08 21:57:05,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:05,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2025-03-08 21:57:05,434 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9106529209621993 [2025-03-08 21:57:05,434 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 216 flow. Second operand 3 states and 265 transitions. [2025-03-08 21:57:05,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 105 transitions, 284 flow [2025-03-08 21:57:05,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 105 transitions, 276 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:57:05,437 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 246 flow [2025-03-08 21:57:05,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2025-03-08 21:57:05,439 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 5 predicate places. [2025-03-08 21:57:05,439 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 246 flow [2025-03-08 21:57:05,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 21:57:05,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:05,440 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] [2025-03-08 21:57:05,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 21:57:05,440 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-08 21:57:05,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1714524035, now seen corresponding path program 1 times [2025-03-08 21:57:05,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:05,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153401492] [2025-03-08 21:57:05,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:05,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:05,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-08 21:57:05,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-08 21:57:05,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:05,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:05,574 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 21:57:05,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:05,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153401492] [2025-03-08 21:57:05,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153401492] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:05,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:05,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 21:57:05,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349334788] [2025-03-08 21:57:05,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:05,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:05,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:05,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:05,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:05,586 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 97 [2025-03-08 21:57:05,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 21:57:05,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:05,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 97 [2025-03-08 21:57:05,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:05,636 INFO L124 PetriNetUnfolderBase]: 20/327 cut-off events. [2025-03-08 21:57:05,636 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-03-08 21:57:05,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 327 events. 20/327 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1576 event pairs, 8 based on Foata normal form. 2/301 useless extension candidates. Maximal degree in co-relation 382. Up to 43 conditions per place. [2025-03-08 21:57:05,639 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 10 selfloop transitions, 6 changer transitions 0/101 dead transitions. [2025-03-08 21:57:05,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 101 transitions, 260 flow [2025-03-08 21:57:05,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2025-03-08 21:57:05,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9587628865979382 [2025-03-08 21:57:05,641 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 246 flow. Second operand 3 states and 279 transitions. [2025-03-08 21:57:05,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 101 transitions, 260 flow [2025-03-08 21:57:05,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 101 transitions, 242 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-03-08 21:57:05,643 INFO L231 Difference]: Finished difference. Result has 101 places, 99 transitions, 232 flow [2025-03-08 21:57:05,644 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=101, PETRI_TRANSITIONS=99} [2025-03-08 21:57:05,644 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 2 predicate places. [2025-03-08 21:57:05,645 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 99 transitions, 232 flow [2025-03-08 21:57:05,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 21:57:05,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:05,645 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] [2025-03-08 21:57:05,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 21:57:05,646 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-08 21:57:05,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:05,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1233185828, now seen corresponding path program 1 times [2025-03-08 21:57:05,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:05,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552010771] [2025-03-08 21:57:05,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:05,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:05,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-08 21:57:05,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-08 21:57:05,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:05,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:05,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:05,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:05,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552010771] [2025-03-08 21:57:05,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552010771] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:05,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:05,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:05,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419520588] [2025-03-08 21:57:05,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:05,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:05,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:05,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:05,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:05,717 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 97 [2025-03-08 21:57:05,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 99 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 21:57:05,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:05,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 97 [2025-03-08 21:57:05,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:05,832 INFO L124 PetriNetUnfolderBase]: 99/640 cut-off events. [2025-03-08 21:57:05,832 INFO L125 PetriNetUnfolderBase]: For 96/100 co-relation queries the response was YES. [2025-03-08 21:57:05,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 992 conditions, 640 events. 99/640 cut-off events. For 96/100 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4241 event pairs, 33 based on Foata normal form. 0/606 useless extension candidates. Maximal degree in co-relation 959. Up to 149 conditions per place. [2025-03-08 21:57:05,835 INFO L140 encePairwiseOnDemand]: 88/97 looper letters, 25 selfloop transitions, 6 changer transitions 3/109 dead transitions. [2025-03-08 21:57:05,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 109 transitions, 336 flow [2025-03-08 21:57:05,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:05,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2025-03-08 21:57:05,843 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9072164948453608 [2025-03-08 21:57:05,843 INFO L175 Difference]: Start difference. First operand has 101 places, 99 transitions, 232 flow. Second operand 3 states and 264 transitions. [2025-03-08 21:57:05,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 109 transitions, 336 flow [2025-03-08 21:57:05,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 109 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:05,845 INFO L231 Difference]: Finished difference. Result has 102 places, 99 transitions, 256 flow [2025-03-08 21:57:05,846 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=102, PETRI_TRANSITIONS=99} [2025-03-08 21:57:05,846 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places. [2025-03-08 21:57:05,846 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 99 transitions, 256 flow [2025-03-08 21:57:05,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 21:57:05,847 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:05,847 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, 1] [2025-03-08 21:57:05,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 21:57:05,847 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-08 21:57:05,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:05,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1890139361, now seen corresponding path program 1 times [2025-03-08 21:57:05,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:05,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587928396] [2025-03-08 21:57:05,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:05,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:05,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 21:57:05,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 21:57:05,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:05,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:05,887 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 21:57:05,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587928396] [2025-03-08 21:57:05,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587928396] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:05,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:05,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:05,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935449057] [2025-03-08 21:57:05,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:05,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:05,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:05,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:05,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:05,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 97 [2025-03-08 21:57:05,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 99 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 21:57:05,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:05,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 97 [2025-03-08 21:57:05,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:06,009 INFO L124 PetriNetUnfolderBase]: 123/759 cut-off events. [2025-03-08 21:57:06,010 INFO L125 PetriNetUnfolderBase]: For 238/246 co-relation queries the response was YES. [2025-03-08 21:57:06,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 759 events. 123/759 cut-off events. For 238/246 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5380 event pairs, 74 based on Foata normal form. 0/723 useless extension candidates. Maximal degree in co-relation 1300. Up to 244 conditions per place. [2025-03-08 21:57:06,014 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 26 selfloop transitions, 3 changer transitions 3/106 dead transitions. [2025-03-08 21:57:06,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 106 transitions, 344 flow [2025-03-08 21:57:06,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:06,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:06,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2025-03-08 21:57:06,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8900343642611683 [2025-03-08 21:57:06,017 INFO L175 Difference]: Start difference. First operand has 102 places, 99 transitions, 256 flow. Second operand 3 states and 259 transitions. [2025-03-08 21:57:06,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 106 transitions, 344 flow [2025-03-08 21:57:06,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 106 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:57:06,022 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 266 flow [2025-03-08 21:57:06,023 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2025-03-08 21:57:06,023 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 5 predicate places. [2025-03-08 21:57:06,023 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 266 flow [2025-03-08 21:57:06,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 21:57:06,023 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:06,024 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, 1, 1, 1] [2025-03-08 21:57:06,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 21:57:06,025 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-08 21:57:06,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:06,025 INFO L85 PathProgramCache]: Analyzing trace with hash 254556452, now seen corresponding path program 1 times [2025-03-08 21:57:06,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:06,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175763890] [2025-03-08 21:57:06,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:06,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:06,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 21:57:06,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 21:57:06,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:06,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:06,065 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 21:57:06,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:06,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175763890] [2025-03-08 21:57:06,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175763890] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:06,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:06,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:06,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568313297] [2025-03-08 21:57:06,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:06,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:06,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:06,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:06,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:06,090 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 97 [2025-03-08 21:57:06,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 21:57:06,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:06,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 97 [2025-03-08 21:57:06,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:06,169 INFO L124 PetriNetUnfolderBase]: 116/764 cut-off events. [2025-03-08 21:57:06,169 INFO L125 PetriNetUnfolderBase]: For 257/266 co-relation queries the response was YES. [2025-03-08 21:57:06,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 764 events. 116/764 cut-off events. For 257/266 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5515 event pairs, 69 based on Foata normal form. 0/727 useless extension candidates. Maximal degree in co-relation 1331. Up to 249 conditions per place. [2025-03-08 21:57:06,171 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 25 selfloop transitions, 3 changer transitions 5/107 dead transitions. [2025-03-08 21:57:06,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 107 transitions, 356 flow [2025-03-08 21:57:06,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:06,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2025-03-08 21:57:06,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8900343642611683 [2025-03-08 21:57:06,172 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 266 flow. Second operand 3 states and 259 transitions. [2025-03-08 21:57:06,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 107 transitions, 356 flow [2025-03-08 21:57:06,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 107 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:57:06,174 INFO L231 Difference]: Finished difference. Result has 106 places, 99 transitions, 276 flow [2025-03-08 21:57:06,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=106, PETRI_TRANSITIONS=99} [2025-03-08 21:57:06,175 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 7 predicate places. [2025-03-08 21:57:06,175 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 99 transitions, 276 flow [2025-03-08 21:57:06,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 21:57:06,175 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:06,175 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:06,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 21:57:06,175 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-08 21:57:06,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:06,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1580032174, now seen corresponding path program 1 times [2025-03-08 21:57:06,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:06,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215132496] [2025-03-08 21:57:06,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:06,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:06,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-08 21:57:06,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-08 21:57:06,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:06,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 21:57:06,199 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 21:57:06,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-08 21:57:06,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-08 21:57:06,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:06,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 21:57:06,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 21:57:06,235 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 21:57:06,236 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2025-03-08 21:57:06,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2025-03-08 21:57:06,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 13 remaining) [2025-03-08 21:57:06,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2025-03-08 21:57:06,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2025-03-08 21:57:06,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2025-03-08 21:57:06,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2025-03-08 21:57:06,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2025-03-08 21:57:06,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2025-03-08 21:57:06,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2025-03-08 21:57:06,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2025-03-08 21:57:06,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2025-03-08 21:57:06,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2025-03-08 21:57:06,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 21:57:06,239 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:06,278 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 21:57:06,278 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 21:57:06,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 09:57:06 BasicIcfg [2025-03-08 21:57:06,283 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 21:57:06,283 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 21:57:06,284 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 21:57:06,284 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 21:57:06,285 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:04" (3/4) ... [2025-03-08 21:57:06,285 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-08 21:57:06,322 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 2. [2025-03-08 21:57:06,347 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 21:57:06,347 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 21:57:06,347 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 21:57:06,348 INFO L158 Benchmark]: Toolchain (without parser) took 2487.76ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 101.3MB in the end (delta: 22.0MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2025-03-08 21:57:06,348 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:06,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.35ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 95.7MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 21:57:06,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.69ms. Allocated memory is still 167.8MB. Free memory was 95.7MB in the beginning and 93.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:06,349 INFO L158 Benchmark]: Boogie Preprocessor took 22.15ms. Allocated memory is still 167.8MB. Free memory was 93.7MB in the beginning and 91.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 21:57:06,350 INFO L158 Benchmark]: IcfgBuilder took 343.40ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 76.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 21:57:06,350 INFO L158 Benchmark]: TraceAbstraction took 1664.54ms. Allocated memory is still 167.8MB. Free memory was 76.0MB in the beginning and 110.9MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:06,350 INFO L158 Benchmark]: Witness Printer took 63.93ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 101.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 21:57:06,351 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.35ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 95.7MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.69ms. Allocated memory is still 167.8MB. Free memory was 95.7MB in the beginning and 93.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.15ms. Allocated memory is still 167.8MB. Free memory was 93.7MB in the beginning and 91.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 343.40ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 76.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1664.54ms. Allocated memory is still 167.8MB. Free memory was 76.0MB in the beginning and 110.9MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 63.93ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 101.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 944]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int global; VAL [global=0] [L918] 0 pthread_mutex_t gm = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [global=0, gm={1:0}] [L927] 0 void (*f)(void) = good; VAL [f={-1:0}, global=0, gm={1:0}] [L928] 0 pthread_mutex_t fm = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [f={-1:0}, fm={2:0}, global=0, gm={1:0}] [L938] 0 pthread_t id; VAL [f={-1:0}, fm={2:0}, global=0, gm={1:0}] [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [f={-1:0}, fm={2:0}, global=0, gm={1:0}, id=-1] [L941] 0 f = bad VAL [f={-1:2}, fm={2:0}, global=0, gm={1:0}, id=-1] [L930] 1 void (*g)(void); VAL [\old(arg)={0:0}, arg={0:0}, f={-1:2}, fm={2:0}, global=0, gm={1:0}] [L932] 1 g = f VAL [\old(arg)={0:0}, arg={0:0}, f={-1:2}, fm={2:0}, g={-1:2}, global=0, gm={1:0}] [L934] CALL 1 g() [L920] 1 global++ VAL [f={-1:2}, fm={2:0}, global=0, gm={1:0}] [L920] 1 global++ VAL [f={-1:2}, fm={2:0}, global=1, gm={1:0}] [L944] 0 printf("global: %d\n", global) VAL [f={-1:2}, fm={2:0}, global=1, gm={1:0}, id=-1] Now there is a data race on ~global~0 between C: global++ [920] and C: printf("global: %d\n", global) [944] - UnprovableResult [Line: 941]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 920]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 920]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 144 locations, 144 edges, 13 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: 1.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 238 IncrementalHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 27 mSDtfsCounter, 238 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=6, InterpolantAutomatonStates: 18, 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, 0.4s InterpolantComputationTime, 290 NumberOfCodeBlocks, 290 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-08 21:57:06,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)