./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.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 8dedc3ea8e96f333d418860556906c8618bbf50be75cff10b45de6d34fe23444 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:43:09,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:43:09,609 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:43:09,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:43:09,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:43:09,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:43:09,627 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:43:09,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:43:09,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:43:09,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:43:09,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:43:09,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:43:09,628 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:43:09,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:43:09,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:43:09,628 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:43:09,628 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:43:09,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:43:09,629 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:43:09,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:43:09,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:43:09,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:43:09,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:43:09,630 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:43:09,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:43:09,630 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:43:09,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:43:09,630 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:43:09,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:43:09,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:43:09,630 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:43:09,630 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 -> 8dedc3ea8e96f333d418860556906c8618bbf50be75cff10b45de6d34fe23444 [2025-03-04 06:43:09,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:43:09,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:43:09,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:43:09,885 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:43:09,886 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:43:09,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i [2025-03-04 06:43:11,070 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212f12eaa/2b998715bf294782bc2a0e924877b7b8/FLAG8c7e6f06e [2025-03-04 06:43:11,405 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:43:11,406 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-2.i [2025-03-04 06:43:11,424 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212f12eaa/2b998715bf294782bc2a0e924877b7b8/FLAG8c7e6f06e [2025-03-04 06:43:11,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212f12eaa/2b998715bf294782bc2a0e924877b7b8 [2025-03-04 06:43:11,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:43:11,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:43:11,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:43:11,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:43:11,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:43:11,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:43:11" (1/1) ... [2025-03-04 06:43:11,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6f2db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:11, skipping insertion in model container [2025-03-04 06:43:11,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:43:11" (1/1) ... [2025-03-04 06:43:11,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:43:12,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:43:12,055 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:43:12,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:43:12,156 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:43:12,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12 WrapperNode [2025-03-04 06:43:12,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:43:12,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:43:12,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:43:12,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:43:12,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,179 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,194 INFO L138 Inliner]: procedures = 362, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 121 [2025-03-04 06:43:12,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:43:12,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:43:12,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:43:12,195 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:43:12,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,215 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:43:12,219 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:43:12,219 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:43:12,220 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:43:12,220 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (1/1) ... [2025-03-04 06:43:12,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:43:12,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:43:12,252 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) [2025-03-04 06:43:12,254 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 [2025-03-04 06:43:12,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2025-03-04 06:43:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2025-03-04 06:43:12,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:43:12,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:43:12,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:43:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:43:12,274 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:43:12,374 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:43:12,375 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:43:12,534 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:43:12,534 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:43:12,544 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:43:12,545 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:43:12,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:43:12 BoogieIcfgContainer [2025-03-04 06:43:12,545 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:43:12,547 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:43:12,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:43:12,550 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:43:12,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:43:11" (1/3) ... [2025-03-04 06:43:12,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1e33c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:43:12, skipping insertion in model container [2025-03-04 06:43:12,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:12" (2/3) ... [2025-03-04 06:43:12,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1e33c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:43:12, skipping insertion in model container [2025-03-04 06:43:12,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:43:12" (3/3) ... [2025-03-04 06:43:12,552 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-2.i [2025-03-04 06:43:12,563 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:43:12,564 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-2.i that has 2 procedures, 157 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2025-03-04 06:43:12,565 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:43:12,607 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 06:43:12,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 162 transitions, 331 flow [2025-03-04 06:43:12,721 INFO L124 PetriNetUnfolderBase]: 6/161 cut-off events. [2025-03-04 06:43:12,724 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:43:12,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 161 events. 6/161 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2025-03-04 06:43:12,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 162 transitions, 331 flow [2025-03-04 06:43:12,732 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 153 transitions, 312 flow [2025-03-04 06:43:12,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:43:12,748 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;@39eea2b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:43:12,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-04 06:43:12,770 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:43:12,772 INFO L124 PetriNetUnfolderBase]: 1/91 cut-off events. [2025-03-04 06:43:12,772 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:43:12,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:12,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:43:12,773 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:43:12,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:12,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2022676984, now seen corresponding path program 1 times [2025-03-04 06:43:12,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:12,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763267600] [2025-03-04 06:43:12,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:12,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:12,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-04 06:43:12,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-04 06:43:12,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:12,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:13,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:13,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:13,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763267600] [2025-03-04 06:43:13,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763267600] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:13,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:13,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:43:13,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218146266] [2025-03-04 06:43:13,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:13,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:43:13,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:13,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:43:13,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:43:13,108 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 162 [2025-03-04 06:43:13,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 153 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2025-03-04 06:43:13,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:13,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 162 [2025-03-04 06:43:13,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:13,175 INFO L124 PetriNetUnfolderBase]: 21/250 cut-off events. [2025-03-04 06:43:13,175 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-04 06:43:13,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 250 events. 21/250 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 611 event pairs, 2 based on Foata normal form. 9/235 useless extension candidates. Maximal degree in co-relation 205. Up to 32 conditions per place. [2025-03-04 06:43:13,180 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 9 selfloop transitions, 6 changer transitions 15/150 dead transitions. [2025-03-04 06:43:13,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 344 flow [2025-03-04 06:43:13,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:43:13,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:43:13,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2025-03-04 06:43:13,195 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9156378600823045 [2025-03-04 06:43:13,196 INFO L175 Difference]: Start difference. First operand has 151 places, 153 transitions, 312 flow. Second operand 3 states and 445 transitions. [2025-03-04 06:43:13,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 344 flow [2025-03-04 06:43:13,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 150 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:43:13,206 INFO L231 Difference]: Finished difference. Result has 148 places, 135 transitions, 311 flow [2025-03-04 06:43:13,208 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=148, PETRI_TRANSITIONS=135} [2025-03-04 06:43:13,213 INFO L279 CegarLoopForPetriNet]: 151 programPoint places, -3 predicate places. [2025-03-04 06:43:13,214 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 135 transitions, 311 flow [2025-03-04 06:43:13,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2025-03-04 06:43:13,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:13,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:43:13,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:43:13,215 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:43:13,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:13,216 INFO L85 PathProgramCache]: Analyzing trace with hash 2139476476, now seen corresponding path program 1 times [2025-03-04 06:43:13,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:13,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288230743] [2025-03-04 06:43:13,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:13,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:13,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 06:43:13,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 06:43:13,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:13,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:13,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:13,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288230743] [2025-03-04 06:43:13,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288230743] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:13,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:13,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:43:13,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119385742] [2025-03-04 06:43:13,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:13,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:43:13,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:13,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:43:13,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:43:13,380 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 162 [2025-03-04 06:43:13,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 135 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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) [2025-03-04 06:43:13,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:13,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 162 [2025-03-04 06:43:13,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:13,430 INFO L124 PetriNetUnfolderBase]: 35/288 cut-off events. [2025-03-04 06:43:13,430 INFO L125 PetriNetUnfolderBase]: For 99/121 co-relation queries the response was YES. [2025-03-04 06:43:13,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 288 events. 35/288 cut-off events. For 99/121 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 911 event pairs, 6 based on Foata normal form. 1/259 useless extension candidates. Maximal degree in co-relation 58. Up to 55 conditions per place. [2025-03-04 06:43:13,433 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 11 selfloop transitions, 7 changer transitions 0/140 dead transitions. [2025-03-04 06:43:13,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 140 transitions, 367 flow [2025-03-04 06:43:13,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:43:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:43:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions. [2025-03-04 06:43:13,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.911522633744856 [2025-03-04 06:43:13,437 INFO L175 Difference]: Start difference. First operand has 148 places, 135 transitions, 311 flow. Second operand 3 states and 443 transitions. [2025-03-04 06:43:13,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 140 transitions, 367 flow [2025-03-04 06:43:13,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 140 transitions, 351 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:43:13,440 INFO L231 Difference]: Finished difference. Result has 135 places, 140 transitions, 355 flow [2025-03-04 06:43:13,441 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=135, PETRI_TRANSITIONS=140} [2025-03-04 06:43:13,441 INFO L279 CegarLoopForPetriNet]: 151 programPoint places, -16 predicate places. [2025-03-04 06:43:13,441 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 140 transitions, 355 flow [2025-03-04 06:43:13,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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) [2025-03-04 06:43:13,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:13,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:43:13,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:43:13,442 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:43:13,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:13,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1228371281, now seen corresponding path program 1 times [2025-03-04 06:43:13,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:13,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998236756] [2025-03-04 06:43:13,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:13,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:13,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-04 06:43:13,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-04 06:43:13,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:13,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:13,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:13,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:13,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998236756] [2025-03-04 06:43:13,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998236756] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:13,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:13,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:43:13,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852904931] [2025-03-04 06:43:13,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:13,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:43:13,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:13,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:43:13,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:43:13,554 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 162 [2025-03-04 06:43:13,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 140 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2025-03-04 06:43:13,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:13,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 162 [2025-03-04 06:43:13,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:13,604 INFO L124 PetriNetUnfolderBase]: 55/343 cut-off events. [2025-03-04 06:43:13,604 INFO L125 PetriNetUnfolderBase]: For 197/234 co-relation queries the response was YES. [2025-03-04 06:43:13,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 343 events. 55/343 cut-off events. For 197/234 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1222 event pairs, 4 based on Foata normal form. 2/312 useless extension candidates. Maximal degree in co-relation 271. Up to 75 conditions per place. [2025-03-04 06:43:13,608 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 13 selfloop transitions, 9 changer transitions 0/145 dead transitions. [2025-03-04 06:43:13,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 145 transitions, 423 flow [2025-03-04 06:43:13,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:43:13,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:43:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2025-03-04 06:43:13,610 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9012345679012346 [2025-03-04 06:43:13,610 INFO L175 Difference]: Start difference. First operand has 135 places, 140 transitions, 355 flow. Second operand 3 states and 438 transitions. [2025-03-04 06:43:13,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 145 transitions, 423 flow [2025-03-04 06:43:13,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:43:13,615 INFO L231 Difference]: Finished difference. Result has 137 places, 145 transitions, 409 flow [2025-03-04 06:43:13,616 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=137, PETRI_TRANSITIONS=145} [2025-03-04 06:43:13,617 INFO L279 CegarLoopForPetriNet]: 151 programPoint places, -14 predicate places. [2025-03-04 06:43:13,617 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 145 transitions, 409 flow [2025-03-04 06:43:13,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2025-03-04 06:43:13,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:13,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:43:13,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:43:13,618 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:43:13,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:13,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1239283313, now seen corresponding path program 1 times [2025-03-04 06:43:13,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:13,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195496460] [2025-03-04 06:43:13,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:13,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:13,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-04 06:43:13,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-04 06:43:13,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:13,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:43:13,648 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:43:13,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-04 06:43:13,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-04 06:43:13,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:13,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:43:13,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:43:13,694 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:43:13,695 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-03-04 06:43:13,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-03-04 06:43:13,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-03-04 06:43:13,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-03-04 06:43:13,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2025-03-04 06:43:13,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2025-03-04 06:43:13,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-03-04 06:43:13,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-03-04 06:43:13,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-03-04 06:43:13,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:43:13,698 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-04 06:43:13,748 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 06:43:13,748 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 06:43:13,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:43:13 BasicIcfg [2025-03-04 06:43:13,751 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 06:43:13,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 06:43:13,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 06:43:13,752 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 06:43:13,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:43:12" (3/4) ... [2025-03-04 06:43:13,753 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-04 06:43:13,809 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 4. [2025-03-04 06:43:13,835 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 06:43:13,835 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 06:43:13,835 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 06:43:13,836 INFO L158 Benchmark]: Toolchain (without parser) took 2194.65ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 52.4MB in the end (delta: 55.5MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2025-03-04 06:43:13,836 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:43:13,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.96ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 70.7MB in the end (delta: 37.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-04 06:43:13,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.55ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 68.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:43:13,837 INFO L158 Benchmark]: Boogie Preprocessor took 24.23ms. Allocated memory is still 142.6MB. Free memory was 68.8MB in the beginning and 67.9MB in the end (delta: 957.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:43:13,837 INFO L158 Benchmark]: IcfgBuilder took 325.75ms. Allocated memory is still 142.6MB. Free memory was 67.9MB in the beginning and 52.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 06:43:13,837 INFO L158 Benchmark]: TraceAbstraction took 1204.60ms. Allocated memory is still 142.6MB. Free memory was 51.1MB in the beginning and 66.2MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:43:13,837 INFO L158 Benchmark]: Witness Printer took 83.47ms. Allocated memory is still 142.6MB. Free memory was 66.2MB in the beginning and 52.4MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:43:13,838 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.96ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 70.7MB in the end (delta: 37.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.55ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 68.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.23ms. Allocated memory is still 142.6MB. Free memory was 68.8MB in the beginning and 67.9MB in the end (delta: 957.5kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 325.75ms. Allocated memory is still 142.6MB. Free memory was 67.9MB in the beginning and 52.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1204.60ms. Allocated memory is still 142.6MB. Free memory was 51.1MB in the beginning and 66.2MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 83.47ms. Allocated memory is still 142.6MB. Free memory was 66.2MB in the beginning and 52.4MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1325]: Data race detected Data race detected The following path leads to a data race: [L1318] 0 int myglobal; VAL [myglobal=0] [L1319] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [myglobal=0] [L1334] 0 pthread_t mythread; VAL [myglobal=0] [L1335] 0 int i; VAL [myglobal=0] [L1336] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\old(arg)={0:0}, myglobal=0, mythread=-1] [L1322] 1 int i,j; VAL [\old(arg)={0:0}, arg={0:0}, myglobal=0] [L1323] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1323] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1325] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1336] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0, mythread=-1] [L1346] 0 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1346] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1348] EXPR 0 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1348] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=1, mythread=-1] [L1325] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [1348] and C: j=myglobal [1325] - UnprovableResult [Line: 1348]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1354]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1348]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1355]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1336]: 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: 1328]: 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, 182 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 8 mSDtfsCounter, 86 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=409occurred 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, 0.3s InterpolantComputationTime, 362 NumberOfCodeBlocks, 362 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 264 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! [2025-03-04 06:43:13,852 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)