./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_38-indexing_malloc.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 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 ../../../trunk/examples/svcomp/goblint-regression/04-mutex_38-indexing_malloc.c -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 a5d5458e3d8cf05130899060969ec8c39906a1485e870f571d92651debe03df7 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:08:04,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:08:04,760 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:08:04,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:08:04,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:08:04,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:08:04,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:08:04,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:08:04,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:08:04,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:08:04,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:08:04,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:08:04,788 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:08:04,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:08:04,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:08:04,788 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:08:04,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:08:04,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:08:04,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:08:04,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:08:04,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:08:04,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:08:04,789 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:08:04,790 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:08:04,790 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:08:04,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:08:04,790 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:08:04,790 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:08:04,790 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:08:04,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:04,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:04,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:04,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:08:04,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:04,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:04,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:04,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:08:04,791 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:08:04,791 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:08:04,791 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:08:04,792 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:08:04,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:08:04,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:08:04,792 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:08:04,792 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:08:04,792 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 -> a5d5458e3d8cf05130899060969ec8c39906a1485e870f571d92651debe03df7 [2025-04-29 11:08:05,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:08:05,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:08:05,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:08:05,042 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:08:05,042 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:08:05,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_38-indexing_malloc.c [2025-04-29 11:08:06,364 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3181dc8b4/14cfe8d169784eb283154d13129049db/FLAGdc7b4828b [2025-04-29 11:08:06,531 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:08:06,533 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_38-indexing_malloc.c [2025-04-29 11:08:06,534 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:06,535 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:06,547 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3181dc8b4/14cfe8d169784eb283154d13129049db/FLAGdc7b4828b [2025-04-29 11:08:07,414 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3181dc8b4/14cfe8d169784eb283154d13129049db [2025-04-29 11:08:07,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:08:07,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:08:07,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:07,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:08:07,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:08:07,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b1f692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07, skipping insertion in model container [2025-04-29 11:08:07,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,432 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:08:07,584 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:07,591 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:08:07,609 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:07,618 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:08:07,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07 WrapperNode [2025-04-29 11:08:07,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:07,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:07,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:08:07,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:08:07,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,643 INFO L138 Inliner]: procedures = 8, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2025-04-29 11:08:07,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:07,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:08:07,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:08:07,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:08:07,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,651 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:08:07,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:08:07,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:08:07,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:08:07,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (1/1) ... [2025-04-29 11:08:07,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:07,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:07,682 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) [2025-04-29 11:08:07,684 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 [2025-04-29 11:08:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-29 11:08:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-29 11:08:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:08:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:08:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:08:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:08:07,700 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:08:07,750 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:08:07,751 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:08:07,863 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:08:07,863 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:08:07,872 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:08:07,872 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:08:07,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:07 BoogieIcfgContainer [2025-04-29 11:08:07,873 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:08:07,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:08:07,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:08:07,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:08:07,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:08:07" (1/3) ... [2025-04-29 11:08:07,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f981e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:07, skipping insertion in model container [2025-04-29 11:08:07,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:07" (2/3) ... [2025-04-29 11:08:07,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f981e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:07, skipping insertion in model container [2025-04-29 11:08:07,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:07" (3/3) ... [2025-04-29 11:08:07,882 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_38-indexing_malloc.c [2025-04-29 11:08:07,891 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:08:07,894 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_38-indexing_malloc.c that has 2 procedures, 55 locations, 53 edges, 1 initial locations, 0 loop locations, and 5 error locations. [2025-04-29 11:08:07,895 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:08:07,942 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-29 11:08:07,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 54 transitions, 115 flow [2025-04-29 11:08:07,990 INFO L116 PetriNetUnfolderBase]: 0/53 cut-off events. [2025-04-29 11:08:07,992 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:07,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 53 events. 0/53 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-29 11:08:07,993 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 54 transitions, 115 flow [2025-04-29 11:08:07,998 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 48 transitions, 99 flow [2025-04-29 11:08:08,006 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:08:08,013 INFO L340 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;@7d409790, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:08:08,013 INFO L341 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-04-29 11:08:08,017 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:08:08,017 INFO L116 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-04-29 11:08:08,017 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:08,017 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:08,017 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:08,018 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-04-29 11:08:08,022 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:08,022 INFO L85 PathProgramCache]: Analyzing trace with hash 12858711, now seen corresponding path program 1 times [2025-04-29 11:08:08,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:08,027 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407832157] [2025-04-29 11:08:08,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:08,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:08,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-29 11:08:08,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-29 11:08:08,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:08,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:08,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:08,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:08,135 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407832157] [2025-04-29 11:08:08,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407832157] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:08,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:08,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:08:08,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163572021] [2025-04-29 11:08:08,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:08,141 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:08,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:08,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:08,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:08,200 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 54 [2025-04-29 11:08:08,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2025-04-29 11:08:08,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:08,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 54 [2025-04-29 11:08:08,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:08,227 INFO L116 PetriNetUnfolderBase]: 1/62 cut-off events. [2025-04-29 11:08:08,228 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:08,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 62 events. 1/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 1 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 48. Up to 9 conditions per place. [2025-04-29 11:08:08,229 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 6 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2025-04-29 11:08:08,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 47 transitions, 113 flow [2025-04-29 11:08:08,230 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:08,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 138 transitions. [2025-04-29 11:08:08,239 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8518518518518519 [2025-04-29 11:08:08,241 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 99 flow. Second operand 3 states and 138 transitions. [2025-04-29 11:08:08,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 47 transitions, 113 flow [2025-04-29 11:08:08,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 47 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:08,249 INFO L231 Difference]: Finished difference. Result has 52 places, 47 transitions, 100 flow [2025-04-29 11:08:08,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=52, PETRI_TRANSITIONS=47} [2025-04-29 11:08:08,255 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2025-04-29 11:08:08,256 INFO L485 AbstractCegarLoop]: Abstraction has has 52 places, 47 transitions, 100 flow [2025-04-29 11:08:08,256 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2025-04-29 11:08:08,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:08,256 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] [2025-04-29 11:08:08,257 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:08:08,257 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-04-29 11:08:08,257 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:08,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1321417406, now seen corresponding path program 1 times [2025-04-29 11:08:08,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:08,258 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835815764] [2025-04-29 11:08:08,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:08,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:08,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-29 11:08:08,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-29 11:08:08,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:08,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:08,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:08,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:08,308 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835815764] [2025-04-29 11:08:08,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835815764] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:08,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:08,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:08:08,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189589338] [2025-04-29 11:08:08,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:08,309 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:08,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:08,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:08,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:08,328 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 54 [2025-04-29 11:08:08,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2025-04-29 11:08:08,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:08,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 54 [2025-04-29 11:08:08,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:08,353 INFO L116 PetriNetUnfolderBase]: 4/82 cut-off events. [2025-04-29 11:08:08,353 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:08,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 82 events. 4/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 209 event pairs, 2 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 83. Up to 12 conditions per place. [2025-04-29 11:08:08,354 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 6 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2025-04-29 11:08:08,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 47 transitions, 116 flow [2025-04-29 11:08:08,354 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:08,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:08,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2025-04-29 11:08:08,355 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8950617283950617 [2025-04-29 11:08:08,356 INFO L175 Difference]: Start difference. First operand has 52 places, 47 transitions, 100 flow. Second operand 3 states and 145 transitions. [2025-04-29 11:08:08,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 47 transitions, 116 flow [2025-04-29 11:08:08,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 47 transitions, 112 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:08:08,358 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 106 flow [2025-04-29 11:08:08,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2025-04-29 11:08:08,359 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2025-04-29 11:08:08,359 INFO L485 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 106 flow [2025-04-29 11:08:08,360 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2025-04-29 11:08:08,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:08,360 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] [2025-04-29 11:08:08,360 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:08:08,360 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-04-29 11:08:08,361 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:08,361 INFO L85 PathProgramCache]: Analyzing trace with hash 381969456, now seen corresponding path program 1 times [2025-04-29 11:08:08,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:08,361 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540455859] [2025-04-29 11:08:08,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:08,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:08,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-29 11:08:08,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-29 11:08:08,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:08,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:08,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:08,793 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540455859] [2025-04-29 11:08:08,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540455859] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:08,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:08,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:08,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400271446] [2025-04-29 11:08:08,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:08,793 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:08,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:08,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:08,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:08,859 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 54 [2025-04-29 11:08:08,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:08,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:08,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 54 [2025-04-29 11:08:08,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:08,986 INFO L116 PetriNetUnfolderBase]: 85/264 cut-off events. [2025-04-29 11:08:08,987 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:08,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 264 events. 85/264 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1184 event pairs, 17 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 448. Up to 96 conditions per place. [2025-04-29 11:08:08,992 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 27 selfloop transitions, 25 changer transitions 4/87 dead transitions. [2025-04-29 11:08:08,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 87 transitions, 298 flow [2025-04-29 11:08:08,993 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:08,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:08,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 279 transitions. [2025-04-29 11:08:08,997 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8611111111111112 [2025-04-29 11:08:08,997 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 106 flow. Second operand 6 states and 279 transitions. [2025-04-29 11:08:08,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 87 transitions, 298 flow [2025-04-29 11:08:08,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 87 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:08,999 INFO L231 Difference]: Finished difference. Result has 60 places, 72 transitions, 272 flow [2025-04-29 11:08:09,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=272, PETRI_PLACES=60, PETRI_TRANSITIONS=72} [2025-04-29 11:08:09,000 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2025-04-29 11:08:09,001 INFO L485 AbstractCegarLoop]: Abstraction has has 60 places, 72 transitions, 272 flow [2025-04-29 11:08:09,002 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:09,002 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:09,002 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] [2025-04-29 11:08:09,002 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:08:09,002 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-04-29 11:08:09,003 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:09,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1009286296, now seen corresponding path program 1 times [2025-04-29 11:08:09,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:09,004 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121278548] [2025-04-29 11:08:09,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:09,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:09,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-29 11:08:09,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-29 11:08:09,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:09,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:09,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:09,221 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121278548] [2025-04-29 11:08:09,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121278548] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:09,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:09,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:09,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700193005] [2025-04-29 11:08:09,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:09,223 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:09,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:09,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:09,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:09,280 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 54 [2025-04-29 11:08:09,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 72 transitions, 272 flow. Second operand has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 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) [2025-04-29 11:08:09,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:09,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 54 [2025-04-29 11:08:09,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:09,390 INFO L116 PetriNetUnfolderBase]: 140/399 cut-off events. [2025-04-29 11:08:09,390 INFO L117 PetriNetUnfolderBase]: For 182/190 co-relation queries the response was YES. [2025-04-29 11:08:09,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 399 events. 140/399 cut-off events. For 182/190 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2054 event pairs, 18 based on Foata normal form. 13/411 useless extension candidates. Maximal degree in co-relation 1092. Up to 160 conditions per place. [2025-04-29 11:08:09,394 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 40 selfloop transitions, 31 changer transitions 18/122 dead transitions. [2025-04-29 11:08:09,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 122 transitions, 660 flow [2025-04-29 11:08:09,395 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:09,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:09,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 268 transitions. [2025-04-29 11:08:09,397 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8271604938271605 [2025-04-29 11:08:09,397 INFO L175 Difference]: Start difference. First operand has 60 places, 72 transitions, 272 flow. Second operand 6 states and 268 transitions. [2025-04-29 11:08:09,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 122 transitions, 660 flow [2025-04-29 11:08:09,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 122 transitions, 660 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:09,419 INFO L231 Difference]: Finished difference. Result has 69 places, 93 transitions, 494 flow [2025-04-29 11:08:09,419 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=69, PETRI_TRANSITIONS=93} [2025-04-29 11:08:09,419 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2025-04-29 11:08:09,419 INFO L485 AbstractCegarLoop]: Abstraction has has 69 places, 93 transitions, 494 flow [2025-04-29 11:08:09,419 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 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) [2025-04-29 11:08:09,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:09,420 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] [2025-04-29 11:08:09,420 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:08:09,420 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-04-29 11:08:09,420 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:09,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2105978862, now seen corresponding path program 1 times [2025-04-29 11:08:09,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:09,420 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807539934] [2025-04-29 11:08:09,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:09,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:09,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-04-29 11:08:09,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-04-29 11:08:09,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:09,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:08:09,442 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 11:08:09,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-04-29 11:08:09,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-04-29 11:08:09,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:09,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:08:09,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 11:08:09,468 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 11:08:09,468 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2025-04-29 11:08:09,470 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2025-04-29 11:08:09,470 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2025-04-29 11:08:09,470 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2025-04-29 11:08:09,471 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2025-04-29 11:08:09,471 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2025-04-29 11:08:09,471 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2025-04-29 11:08:09,471 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2025-04-29 11:08:09,471 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:08:09,471 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-04-29 11:08:09,515 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:08:09,515 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:08:09,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:08:09 BasicIcfg [2025-04-29 11:08:09,521 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:08:09,522 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:08:09,522 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:08:09,523 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:08:09,523 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:07" (3/4) ... [2025-04-29 11:08:09,524 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-29 11:08:09,559 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-04-29 11:08:09,585 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:08:09,586 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:08:09,588 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:08:09,589 INFO L158 Benchmark]: Toolchain (without parser) took 2171.37ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 91.1MB in the end (delta: 22.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:08:09,590 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 201.3MB. Free memory was 128.3MB in the beginning and 128.0MB in the end (delta: 307.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:09,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.51ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 99.2MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:08:09,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.72ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 97.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:08:09,590 INFO L158 Benchmark]: Boogie Preprocessor took 11.22ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 96.8MB in the end (delta: 959.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:09,590 INFO L158 Benchmark]: RCFGBuilder took 217.90ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 85.1MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:08:09,591 INFO L158 Benchmark]: TraceAbstraction took 1647.52ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 97.7MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:09,591 INFO L158 Benchmark]: Witness Printer took 66.21ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 91.1MB in the end (delta: 6.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:09,592 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 201.3MB. Free memory was 128.3MB in the beginning and 128.0MB in the end (delta: 307.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.51ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 99.2MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.72ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 97.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.22ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 96.8MB in the end (delta: 959.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 217.90ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 85.1MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1647.52ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 97.7MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 66.21ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 91.1MB in the end (delta: 6.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 15]: Data race detected Data race detected The following path leads to a data race: [L11] 0 int* s; VAL [s={0:0}] [L12] 0 pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; VAL [mutex=0, s={0:0}] [L20] 0 pthread_t id; VAL [mutex=0, s={0:0}] [L21] 0 s = (int*)malloc(sizeof(int)) VAL [mutex=0, s={-2:0}] [L22] FCALL, FORK 0 pthread_create(&id, NULL, t_fun, NULL) VAL [\at(arg, Pre)={0:0}, id=-1, mutex=0, s={-2:0}] [L15] EXPR 1 s[0] VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex=0, s={-2:0}] [L15] 1 s[0] = 8 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex=0, s={-2:0}] [L23] EXPR 0 s[0] VAL [\at(arg, Pre)={0:0}, arg={0:0}, id=-1, mutex=0, s={-2:0}] [L23] 0 s[0] = 9 VAL [\at(arg, Pre)={0:0}, arg={0:0}, id=-1, mutex=0, s={-2:0}] [L15] 1 s[0] = 8 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex=0, s={-2:0}] [L23] 0 s[0] = 9 VAL [\at(arg, Pre)={0:0}, arg={0:0}, id=-1, mutex=0, s={-2:0}] [L15] 1 s[0] = 8 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex=0, s={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: s[0] [15] * C: s[0] [23] * C: s[0] = 9 [23] * C: s = (int*)malloc(sizeof(int)) [21] and C: s[0] = 8 [15] - UnprovableResult [Line: 21]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 22]: 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: 15]: 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, 72 locations, 71 edges, 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: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 240 IncrementalHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 14 mSDtfsCounter, 240 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=494occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-04-29 11:08:09,606 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)