./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 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/03-practical_07-nonterm.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 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:14:55,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:14:55,783 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:14:55,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:14:55,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:14:55,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:14:55,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:14:55,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:14:55,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:14:55,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:14:55,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:14:55,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:14:55,814 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:14:55,815 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:14:55,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:14:55,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:14:55,815 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 -> 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 [2025-03-13 22:14:56,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:14:56,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:14:56,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:14:56,076 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:14:56,076 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:14:56,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i [2025-03-13 22:14:57,221 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c226a065f/0885688369c74c769519b57f5836656a/FLAG7615e38df [2025-03-13 22:14:57,508 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:14:57,511 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i [2025-03-13 22:14:57,528 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c226a065f/0885688369c74c769519b57f5836656a/FLAG7615e38df [2025-03-13 22:14:57,783 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c226a065f/0885688369c74c769519b57f5836656a [2025-03-13 22:14:57,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:14:57,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:14:57,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:14:57,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:14:57,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:14:57,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:14:57" (1/1) ... [2025-03-13 22:14:57,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a568bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:57, skipping insertion in model container [2025-03-13 22:14:57,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:14:57" (1/1) ... [2025-03-13 22:14:57,821 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:14:58,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:14:58,160 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:14:58,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:14:58,253 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:14:58,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58 WrapperNode [2025-03-13 22:14:58,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:14:58,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:14:58,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:14:58,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:14:58,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,279 INFO L138 Inliner]: procedures = 262, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2025-03-13 22:14:58,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:14:58,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:14:58,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:14:58,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:14:58,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,288 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,291 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,295 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:14:58,296 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:14:58,296 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:14:58,296 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:14:58,297 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (1/1) ... [2025-03-13 22:14:58,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:14:58,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:14:58,323 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) [2025-03-13 22:14:58,325 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 [2025-03-13 22:14:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:14:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:14:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:14:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-13 22:14:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-13 22:14:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:14:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:14:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:14:58,342 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:14:58,429 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:14:58,430 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:14:58,544 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:14:58,545 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:14:58,545 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:14:58,570 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:14:58,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:14:58 BoogieIcfgContainer [2025-03-13 22:14:58,571 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:14:58,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:14:58,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:14:58,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:14:58,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:14:57" (1/3) ... [2025-03-13 22:14:58,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14337303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:14:58, skipping insertion in model container [2025-03-13 22:14:58,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:14:58" (2/3) ... [2025-03-13 22:14:58,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14337303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:14:58, skipping insertion in model container [2025-03-13 22:14:58,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:14:58" (3/3) ... [2025-03-13 22:14:58,578 INFO L128 eAbstractionObserver]: Analyzing ICFG 03-practical_07-nonterm.i [2025-03-13 22:14:58,588 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:14:58,590 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 03-practical_07-nonterm.i that has 2 procedures, 68 locations, 1 initial locations, 1 loop locations, and 5 error locations. [2025-03-13 22:14:58,590 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:14:58,634 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-13 22:14:58,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 68 transitions, 143 flow [2025-03-13 22:14:58,698 INFO L124 PetriNetUnfolderBase]: 1/67 cut-off events. [2025-03-13 22:14:58,700 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:14:58,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 67 events. 1/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2025-03-13 22:14:58,704 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 68 transitions, 143 flow [2025-03-13 22:14:58,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 128 flow [2025-03-13 22:14:58,716 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:14:58,725 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;@75608a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:14:58,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-13 22:14:58,734 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:14:58,736 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2025-03-13 22:14:58,737 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:14:58,737 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:58,737 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] [2025-03-13 22:14:58,738 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-13 22:14:58,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:58,742 INFO L85 PathProgramCache]: Analyzing trace with hash -713699995, now seen corresponding path program 1 times [2025-03-13 22:14:58,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:58,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973218760] [2025-03-13 22:14:58,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:58,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:58,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-13 22:14:58,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-13 22:14:58,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:58,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:58,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:58,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:58,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973218760] [2025-03-13 22:14:58,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973218760] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:58,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:58,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:14:58,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217905713] [2025-03-13 22:14:58,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:58,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:14:58,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:58,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:14:58,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:14:58,994 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 68 [2025-03-13 22:14:58,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2025-03-13 22:14:58,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:58,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 68 [2025-03-13 22:14:58,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:59,052 INFO L124 PetriNetUnfolderBase]: 37/172 cut-off events. [2025-03-13 22:14:59,052 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:14:59,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 172 events. 37/172 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 639 event pairs, 13 based on Foata normal form. 9/164 useless extension candidates. Maximal degree in co-relation 226. Up to 44 conditions per place. [2025-03-13 22:14:59,056 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 17 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2025-03-13 22:14:59,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 177 flow [2025-03-13 22:14:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:14:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:14:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2025-03-13 22:14:59,070 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8676470588235294 [2025-03-13 22:14:59,072 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 128 flow. Second operand 3 states and 177 transitions. [2025-03-13 22:14:59,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 177 flow [2025-03-13 22:14:59,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 64 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:14:59,080 INFO L231 Difference]: Finished difference. Result has 60 places, 60 transitions, 162 flow [2025-03-13 22:14:59,082 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2025-03-13 22:14:59,085 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -4 predicate places. [2025-03-13 22:14:59,087 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 162 flow [2025-03-13 22:14:59,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2025-03-13 22:14:59,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:59,088 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] [2025-03-13 22:14:59,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:14:59,088 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-13 22:14:59,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:59,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1636974247, now seen corresponding path program 1 times [2025-03-13 22:14:59,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:59,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225527080] [2025-03-13 22:14:59,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:59,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:59,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-13 22:14:59,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-13 22:14:59,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:59,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:59,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:59,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225527080] [2025-03-13 22:14:59,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225527080] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:59,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:59,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:14:59,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334737310] [2025-03-13 22:14:59,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:59,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:14:59,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:59,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:14:59,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:14:59,178 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2025-03-13 22:14:59,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2025-03-13 22:14:59,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:59,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2025-03-13 22:14:59,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:59,235 INFO L124 PetriNetUnfolderBase]: 53/213 cut-off events. [2025-03-13 22:14:59,235 INFO L125 PetriNetUnfolderBase]: For 89/93 co-relation queries the response was YES. [2025-03-13 22:14:59,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 213 events. 53/213 cut-off events. For 89/93 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 890 event pairs, 21 based on Foata normal form. 3/200 useless extension candidates. Maximal degree in co-relation 386. Up to 86 conditions per place. [2025-03-13 22:14:59,238 INFO L140 encePairwiseOnDemand]: 62/68 looper letters, 16 selfloop transitions, 7 changer transitions 1/67 dead transitions. [2025-03-13 22:14:59,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 234 flow [2025-03-13 22:14:59,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:14:59,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:14:59,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2025-03-13 22:14:59,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8627450980392157 [2025-03-13 22:14:59,242 INFO L175 Difference]: Start difference. First operand has 60 places, 60 transitions, 162 flow. Second operand 3 states and 176 transitions. [2025-03-13 22:14:59,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 234 flow [2025-03-13 22:14:59,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 67 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:14:59,245 INFO L231 Difference]: Finished difference. Result has 62 places, 65 transitions, 206 flow [2025-03-13 22:14:59,245 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=62, PETRI_TRANSITIONS=65} [2025-03-13 22:14:59,246 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places. [2025-03-13 22:14:59,247 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 65 transitions, 206 flow [2025-03-13 22:14:59,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2025-03-13 22:14:59,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:59,247 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:14:59,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:14:59,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-13 22:14:59,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:59,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1994933439, now seen corresponding path program 1 times [2025-03-13 22:14:59,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:59,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492698199] [2025-03-13 22:14:59,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:59,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:59,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-13 22:14:59,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-13 22:14:59,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:59,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:59,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:59,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492698199] [2025-03-13 22:14:59,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492698199] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:59,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:59,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:14:59,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276602351] [2025-03-13 22:14:59,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:59,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:14:59,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:59,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:14:59,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:14:59,343 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 68 [2025-03-13 22:14:59,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 65 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2025-03-13 22:14:59,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:59,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 68 [2025-03-13 22:14:59,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:59,410 INFO L124 PetriNetUnfolderBase]: 69/251 cut-off events. [2025-03-13 22:14:59,410 INFO L125 PetriNetUnfolderBase]: For 170/174 co-relation queries the response was YES. [2025-03-13 22:14:59,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 251 events. 69/251 cut-off events. For 170/174 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1091 event pairs, 21 based on Foata normal form. 1/236 useless extension candidates. Maximal degree in co-relation 531. Up to 100 conditions per place. [2025-03-13 22:14:59,413 INFO L140 encePairwiseOnDemand]: 62/68 looper letters, 16 selfloop transitions, 8 changer transitions 6/72 dead transitions. [2025-03-13 22:14:59,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 72 transitions, 290 flow [2025-03-13 22:14:59,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:14:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:14:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2025-03-13 22:14:59,414 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8382352941176471 [2025-03-13 22:14:59,414 INFO L175 Difference]: Start difference. First operand has 62 places, 65 transitions, 206 flow. Second operand 3 states and 171 transitions. [2025-03-13 22:14:59,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 72 transitions, 290 flow [2025-03-13 22:14:59,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:14:59,416 INFO L231 Difference]: Finished difference. Result has 64 places, 65 transitions, 230 flow [2025-03-13 22:14:59,417 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=64, PETRI_TRANSITIONS=65} [2025-03-13 22:14:59,417 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 0 predicate places. [2025-03-13 22:14:59,417 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 65 transitions, 230 flow [2025-03-13 22:14:59,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2025-03-13 22:14:59,418 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:59,418 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] [2025-03-13 22:14:59,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:14:59,418 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-13 22:14:59,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:59,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1625927912, now seen corresponding path program 1 times [2025-03-13 22:14:59,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:59,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644284157] [2025-03-13 22:14:59,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:59,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:59,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-13 22:14:59,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-13 22:14:59,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:59,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:14:59,445 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:14:59,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-13 22:14:59,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-13 22:14:59,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:59,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:14:59,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:14:59,475 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:14:59,475 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2025-03-13 22:14:59,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2025-03-13 22:14:59,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2025-03-13 22:14:59,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2025-03-13 22:14:59,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2025-03-13 22:14:59,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2025-03-13 22:14:59,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2025-03-13 22:14:59,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2025-03-13 22:14:59,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:14:59,479 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-13 22:14:59,505 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-13 22:14:59,505 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 22:14:59,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 10:14:59 BasicIcfg [2025-03-13 22:14:59,509 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 22:14:59,510 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 22:14:59,510 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 22:14:59,510 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 22:14:59,511 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:14:58" (3/4) ... [2025-03-13 22:14:59,511 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-13 22:14:59,552 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-03-13 22:14:59,581 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-13 22:14:59,582 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-13 22:14:59,582 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 22:14:59,583 INFO L158 Benchmark]: Toolchain (without parser) took 1795.95ms. Allocated memory is still 201.3MB. Free memory was 153.6MB in the beginning and 131.4MB in the end (delta: 22.3MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2025-03-13 22:14:59,583 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:14:59,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.19ms. Allocated memory is still 201.3MB. Free memory was 153.6MB in the beginning and 126.3MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-13 22:14:59,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.21ms. Allocated memory is still 201.3MB. Free memory was 126.3MB in the beginning and 124.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:14:59,585 INFO L158 Benchmark]: Boogie Preprocessor took 15.67ms. Allocated memory is still 201.3MB. Free memory was 124.4MB in the beginning and 123.6MB in the end (delta: 781.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:14:59,585 INFO L158 Benchmark]: IcfgBuilder took 275.34ms. Allocated memory is still 201.3MB. Free memory was 123.2MB in the beginning and 109.0MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:14:59,586 INFO L158 Benchmark]: TraceAbstraction took 936.44ms. Allocated memory is still 201.3MB. Free memory was 108.3MB in the beginning and 137.6MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:14:59,586 INFO L158 Benchmark]: Witness Printer took 71.90ms. Allocated memory is still 201.3MB. Free memory was 137.6MB in the beginning and 131.4MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:14:59,587 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.19ms. Allocated memory is still 201.3MB. Free memory was 153.6MB in the beginning and 126.3MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.21ms. Allocated memory is still 201.3MB. Free memory was 126.3MB in the beginning and 124.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.67ms. Allocated memory is still 201.3MB. Free memory was 124.4MB in the beginning and 123.6MB in the end (delta: 781.9kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 275.34ms. Allocated memory is still 201.3MB. Free memory was 123.2MB in the beginning and 109.0MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 936.44ms. Allocated memory is still 201.3MB. Free memory was 108.3MB in the beginning and 137.6MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.90ms. Allocated memory is still 201.3MB. Free memory was 137.6MB in the beginning and 131.4MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 931]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L928] 0 pthread_t id; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] EXPR 1 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] 0 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] 1 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L931] 0 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [922] and C: myglobal+1 [931] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: 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: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: 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, 87 locations, 8 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: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 35 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2025-03-13 22:14:59,603 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)