./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread/bigshot_p.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/bigshot_p.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 4f85a81c281496cbdf0eab98e129af733fe18998c76267e6089945bdfc7c0c54 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:22:23,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:22:23,947 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:22:23,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:22:23,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:22:23,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:22:23,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:22:23,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:22:23,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:22:23,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:22:23,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:22:23,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:22:23,970 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:22:23,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:22:23,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:22:23,970 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:22:23,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:22:23,971 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:22:23,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:22:23,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:22:23,972 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:22:23,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:22:23,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:22:23,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:22:23,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:22:23,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:22:23,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:22:23,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:22:23,972 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 -> 4f85a81c281496cbdf0eab98e129af733fe18998c76267e6089945bdfc7c0c54 [2025-03-04 06:22:24,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:22:24,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:22:24,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:22:24,223 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:22:24,223 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:22:24,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/bigshot_p.i [2025-03-04 06:22:25,479 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c81b7f9/c3b4006bb29f43c7b1a57436a349cba7/FLAGf0350ea6b [2025-03-04 06:22:25,769 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:22:25,770 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/bigshot_p.i [2025-03-04 06:22:25,782 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c81b7f9/c3b4006bb29f43c7b1a57436a349cba7/FLAGf0350ea6b [2025-03-04 06:22:25,794 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c81b7f9/c3b4006bb29f43c7b1a57436a349cba7 [2025-03-04 06:22:25,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:22:25,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:22:25,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:22:25,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:22:25,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:22:25,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:22:25" (1/1) ... [2025-03-04 06:22:25,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1574222b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:25, skipping insertion in model container [2025-03-04 06:22:25,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:22:25" (1/1) ... [2025-03-04 06:22:25,830 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:22:26,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:22:26,110 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:22:26,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:22:26,189 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:22:26,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26 WrapperNode [2025-03-04 06:22:26,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:22:26,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:22:26,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:22:26,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:22:26,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,223 INFO L138 Inliner]: procedures = 323, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 85 [2025-03-04 06:22:26,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:22:26,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:22:26,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:22:26,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:22:26,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,238 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:22:26,250 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:22:26,250 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:22:26,250 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:22:26,251 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (1/1) ... [2025-03-04 06:22:26,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:22:26,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:22:26,279 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 06:22:26,285 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 06:22:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-04 06:22:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 06:22:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-04 06:22:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-04 06:22:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-04 06:22:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-04 06:22:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 06:22:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:22:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:22:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:22:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:22:26,302 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 06:22:26,395 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:22:26,397 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:22:26,552 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:22:26,552 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:22:26,562 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:22:26,562 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:22:26,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:22:26 BoogieIcfgContainer [2025-03-04 06:22:26,562 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:22:26,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:22:26,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:22:26,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:22:26,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:22:25" (1/3) ... [2025-03-04 06:22:26,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3349de42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:22:26, skipping insertion in model container [2025-03-04 06:22:26,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:22:26" (2/3) ... [2025-03-04 06:22:26,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3349de42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:22:26, skipping insertion in model container [2025-03-04 06:22:26,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:22:26" (3/3) ... [2025-03-04 06:22:26,570 INFO L128 eAbstractionObserver]: Analyzing ICFG bigshot_p.i [2025-03-04 06:22:26,581 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:22:26,582 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bigshot_p.i that has 3 procedures, 103 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2025-03-04 06:22:26,583 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:22:26,653 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 06:22:26,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 108 transitions, 230 flow [2025-03-04 06:22:26,732 INFO L124 PetriNetUnfolderBase]: 6/106 cut-off events. [2025-03-04 06:22:26,734 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 06:22:26,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 106 events. 6/106 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 116 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2025-03-04 06:22:26,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 108 transitions, 230 flow [2025-03-04 06:22:26,740 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 84 transitions, 180 flow [2025-03-04 06:22:26,747 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:22:26,761 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;@7d27d854, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:22:26,762 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-03-04 06:22:26,773 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:22:26,774 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2025-03-04 06:22:26,774 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:22:26,775 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:22:26,775 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:22:26,776 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-04 06:22:26,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:22:26,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1748510798, now seen corresponding path program 1 times [2025-03-04 06:22:26,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:22:26,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165692964] [2025-03-04 06:22:26,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:22:26,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:22:26,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 06:22:26,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 06:22:26,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:22:26,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:22:27,005 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 06:22:27,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:22:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165692964] [2025-03-04 06:22:27,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165692964] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:22:27,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:22:27,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:22:27,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982245891] [2025-03-04 06:22:27,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:22:27,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:22:27,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:22:27,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:22:27,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:22:27,068 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 108 [2025-03-04 06:22:27,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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 06:22:27,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:22:27,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 108 [2025-03-04 06:22:27,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:22:27,130 INFO L124 PetriNetUnfolderBase]: 25/194 cut-off events. [2025-03-04 06:22:27,130 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-04 06:22:27,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 194 events. 25/194 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 709 event pairs, 8 based on Foata normal form. 6/178 useless extension candidates. Maximal degree in co-relation 203. Up to 38 conditions per place. [2025-03-04 06:22:27,132 INFO L140 encePairwiseOnDemand]: 101/108 looper letters, 13 selfloop transitions, 5 changer transitions 0/88 dead transitions. [2025-03-04 06:22:27,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 88 transitions, 227 flow [2025-03-04 06:22:27,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:22:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:22:27,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2025-03-04 06:22:27,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9074074074074074 [2025-03-04 06:22:27,142 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 180 flow. Second operand 3 states and 294 transitions. [2025-03-04 06:22:27,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 88 transitions, 227 flow [2025-03-04 06:22:27,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 88 transitions, 217 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 06:22:27,149 INFO L231 Difference]: Finished difference. Result has 88 places, 87 transitions, 208 flow [2025-03-04 06:22:27,150 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=88, PETRI_TRANSITIONS=87} [2025-03-04 06:22:27,155 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2025-03-04 06:22:27,156 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 87 transitions, 208 flow [2025-03-04 06:22:27,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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 06:22:27,157 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:22:27,157 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:22:27,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:22:27,158 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-04 06:22:27,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:22:27,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1756798226, now seen corresponding path program 1 times [2025-03-04 06:22:27,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:22:27,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892372393] [2025-03-04 06:22:27,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:22:27,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:22:27,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 06:22:27,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 06:22:27,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:22:27,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:22:27,233 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 06:22:27,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:22:27,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892372393] [2025-03-04 06:22:27,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892372393] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:22:27,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:22:27,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:22:27,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69443854] [2025-03-04 06:22:27,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:22:27,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:22:27,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:22:27,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:22:27,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:22:27,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 108 [2025-03-04 06:22:27,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 87 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:22:27,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:22:27,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 108 [2025-03-04 06:22:27,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:22:27,345 INFO L124 PetriNetUnfolderBase]: 37/249 cut-off events. [2025-03-04 06:22:27,345 INFO L125 PetriNetUnfolderBase]: For 66/69 co-relation queries the response was YES. [2025-03-04 06:22:27,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 249 events. 37/249 cut-off events. For 66/69 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1040 event pairs, 4 based on Foata normal form. 2/229 useless extension candidates. Maximal degree in co-relation 134. Up to 45 conditions per place. [2025-03-04 06:22:27,347 INFO L140 encePairwiseOnDemand]: 98/108 looper letters, 17 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2025-03-04 06:22:27,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 93 transitions, 282 flow [2025-03-04 06:22:27,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:22:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:22:27,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2025-03-04 06:22:27,350 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8858024691358025 [2025-03-04 06:22:27,350 INFO L175 Difference]: Start difference. First operand has 88 places, 87 transitions, 208 flow. Second operand 3 states and 287 transitions. [2025-03-04 06:22:27,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 93 transitions, 282 flow [2025-03-04 06:22:27,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 93 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:22:27,355 INFO L231 Difference]: Finished difference. Result has 88 places, 91 transitions, 260 flow [2025-03-04 06:22:27,356 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=88, PETRI_TRANSITIONS=91} [2025-03-04 06:22:27,357 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2025-03-04 06:22:27,357 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 91 transitions, 260 flow [2025-03-04 06:22:27,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:22:27,357 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:22:27,357 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] [2025-03-04 06:22:27,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:22:27,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-04 06:22:27,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:22:27,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1798182790, now seen corresponding path program 1 times [2025-03-04 06:22:27,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:22:27,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247230793] [2025-03-04 06:22:27,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:22:27,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:22:27,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 06:22:27,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 06:22:27,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:22:27,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:22:27,389 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:22:27,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 06:22:27,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 06:22:27,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:22:27,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:22:27,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:22:27,425 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:22:27,427 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2025-03-04 06:22:27,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2025-03-04 06:22:27,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2025-03-04 06:22:27,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2025-03-04 06:22:27,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2025-03-04 06:22:27,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2025-03-04 06:22:27,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2025-03-04 06:22:27,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 11 remaining) [2025-03-04 06:22:27,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2025-03-04 06:22:27,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2025-03-04 06:22:27,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2025-03-04 06:22:27,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:22:27,431 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-04 06:22:27,455 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 06:22:27,455 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 06:22:27,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:22:27 BasicIcfg [2025-03-04 06:22:27,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 06:22:27,462 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 06:22:27,462 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 06:22:27,463 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 06:22:27,463 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:22:26" (3/4) ... [2025-03-04 06:22:27,464 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-04 06:22:27,502 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-03-04 06:22:27,530 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 06:22:27,530 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 06:22:27,530 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 06:22:27,531 INFO L158 Benchmark]: Toolchain (without parser) took 1734.30ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 83.0MB in the end (delta: 38.9MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2025-03-04 06:22:27,531 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:22:27,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.02ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 89.6MB in the end (delta: 32.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-04 06:22:27,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.50ms. Allocated memory is still 167.8MB. Free memory was 89.6MB in the beginning and 87.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:22:27,532 INFO L158 Benchmark]: Boogie Preprocessor took 24.55ms. Allocated memory is still 167.8MB. Free memory was 87.4MB in the beginning and 86.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:22:27,533 INFO L158 Benchmark]: IcfgBuilder took 312.64ms. Allocated memory is still 167.8MB. Free memory was 86.0MB in the beginning and 70.7MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 06:22:27,533 INFO L158 Benchmark]: TraceAbstraction took 897.12ms. Allocated memory is still 167.8MB. Free memory was 70.7MB in the beginning and 89.7MB in the end (delta: -18.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:22:27,533 INFO L158 Benchmark]: Witness Printer took 68.63ms. Allocated memory is still 167.8MB. Free memory was 89.7MB in the beginning and 83.0MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:22:27,535 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.02ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 89.6MB in the end (delta: 32.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.50ms. Allocated memory is still 167.8MB. Free memory was 89.6MB in the beginning and 87.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.55ms. Allocated memory is still 167.8MB. Free memory was 87.4MB in the beginning and 86.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 312.64ms. Allocated memory is still 167.8MB. Free memory was 86.0MB in the beginning and 70.7MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 897.12ms. Allocated memory is still 167.8MB. Free memory was 70.7MB in the beginning and 89.7MB in the end (delta: -18.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.63ms. Allocated memory is still 167.8MB. Free memory was 89.7MB in the beginning and 83.0MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1111]: Data race detected Data race detected The following path leads to a data race: [L1108] 0 char *v; VAL [v={0:0}] [L1121] 0 pthread_t t1, t2; VAL [v={0:0}] [L1122] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [t1=-1, v={0:0}] [L1111] EXPR, FCALL 1 calloc(8, sizeof(char)) [L1111] 1 v = calloc(8, sizeof(char)) VAL [\old(arg)={0:0}, arg={0:0}, v={-2:0}] [L1123] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [t1=-1, t2=0, v={-2:0}] [L1116] 2 \read(*v) VAL [\old(arg)={0:0}, arg={0:0}, v={-2:0}] [L1111] 1 v = calloc(8, sizeof(char)) VAL [\old(arg)={0:0}, arg={0:0}, v={-2:0}] Now there is a data race on ~v~0 between C: if (v) strcpy(v, "Bigshot"); [1116] and C: v = calloc(8, sizeof(char)) [1111] - UnprovableResult [Line: 1116]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1116]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1126]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1126]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1126]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1122]: 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: 1123]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 143 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 35 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=260occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 06:22:27,550 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)