./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/bigshot_p.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/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 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 16:42:28,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 16:42:28,342 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 16:42:28,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 16:42:28,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 16:42:28,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 16:42:28,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 16:42:28,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 16:42:28,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 16:42:28,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 16:42:28,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 16:42:28,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 16:42:28,382 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 16:42:28,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 16:42:28,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 16:42:28,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 16:42:28,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 16:42:28,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 16:42:28,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 16:42:28,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 16:42:28,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 16:42:28,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 16:42:28,387 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 16:42:28,388 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 16:42:28,388 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 16:42:28,388 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 16:42:28,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 16:42:28,388 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 16:42:28,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 16:42:28,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 16:42:28,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 16:42:28,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:42:28,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 16:42:28,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 16:42:28,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 16:42:28,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 16:42:28,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 16:42:28,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 16:42:28,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 16:42:28,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 16:42:28,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 16:42:28,392 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f85a81c281496cbdf0eab98e129af733fe18998c76267e6089945bdfc7c0c54 [2024-10-14 16:42:28,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 16:42:28,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 16:42:28,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 16:42:28,653 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 16:42:28,654 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 16:42:28,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/bigshot_p.i [2024-10-14 16:42:30,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 16:42:30,311 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 16:42:30,312 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/bigshot_p.i [2024-10-14 16:42:30,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efbeeee7f/8e8506d60f95488d9264908ad9d880c2/FLAG7e639dcd5 [2024-10-14 16:42:30,350 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efbeeee7f/8e8506d60f95488d9264908ad9d880c2 [2024-10-14 16:42:30,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 16:42:30,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 16:42:30,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 16:42:30,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 16:42:30,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 16:42:30,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:30,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0548f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30, skipping insertion in model container [2024-10-14 16:42:30,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:30,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 16:42:30,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:42:30,852 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 16:42:30,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:42:30,979 INFO L204 MainTranslator]: Completed translation [2024-10-14 16:42:30,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30 WrapperNode [2024-10-14 16:42:30,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 16:42:30,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 16:42:30,982 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 16:42:30,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 16:42:30,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,033 INFO L138 Inliner]: procedures = 323, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 85 [2024-10-14 16:42:31,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 16:42:31,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 16:42:31,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 16:42:31,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 16:42:31,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,050 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 16:42:31,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 16:42:31,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 16:42:31,068 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 16:42:31,068 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (1/1) ... [2024-10-14 16:42:31,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:42:31,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:42:31,102 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) [2024-10-14 16:42:31,105 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 [2024-10-14 16:42:31,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-10-14 16:42:31,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 16:42:31,148 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 16:42:31,148 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 16:42:31,148 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 16:42:31,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 16:42:31,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 16:42:31,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 16:42:31,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 16:42:31,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 16:42:31,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 16:42:31,150 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 16:42:31,264 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 16:42:31,266 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 16:42:31,435 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 16:42:31,435 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 16:42:31,454 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 16:42:31,455 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 16:42:31,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:42:31 BoogieIcfgContainer [2024-10-14 16:42:31,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 16:42:31,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 16:42:31,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 16:42:31,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 16:42:31,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:42:30" (1/3) ... [2024-10-14 16:42:31,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef17853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:42:31, skipping insertion in model container [2024-10-14 16:42:31,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:30" (2/3) ... [2024-10-14 16:42:31,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef17853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:42:31, skipping insertion in model container [2024-10-14 16:42:31,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:42:31" (3/3) ... [2024-10-14 16:42:31,463 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_p.i [2024-10-14 16:42:31,482 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 16:42:31,482 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-14 16:42:31,482 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 16:42:31,545 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 16:42:31,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 108 transitions, 230 flow [2024-10-14 16:42:31,627 INFO L124 PetriNetUnfolderBase]: 6/106 cut-off events. [2024-10-14 16:42:31,627 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 16:42:31,633 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 4. Compared 114 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. [2024-10-14 16:42:31,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 108 transitions, 230 flow [2024-10-14 16:42:31,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 84 transitions, 180 flow [2024-10-14 16:42:31,647 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:42:31,653 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;@4d7c7433, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:42:31,653 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-14 16:42:31,669 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:42:31,670 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2024-10-14 16:42:31,670 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:42:31,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:42:31,671 INFO L204 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] [2024-10-14 16:42:31,671 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-14 16:42:31,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:42:31,676 INFO L85 PathProgramCache]: Analyzing trace with hash 273320334, now seen corresponding path program 1 times [2024-10-14 16:42:31,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:42:31,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491033454] [2024-10-14 16:42:31,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:42:31,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:42:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:42:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:42:31,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:42:31,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491033454] [2024-10-14 16:42:31,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491033454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:42:31,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:42:31,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:42:31,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800101814] [2024-10-14 16:42:31,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:42:31,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:42:31,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:42:32,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:42:32,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:42:32,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 108 [2024-10-14 16:42:32,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 180 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) [2024-10-14 16:42:32,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:42:32,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 108 [2024-10-14 16:42:32,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:42:32,162 INFO L124 PetriNetUnfolderBase]: 20/176 cut-off events. [2024-10-14 16:42:32,162 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-10-14 16:42:32,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 176 events. 20/176 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 606 event pairs, 3 based on Foata normal form. 5/163 useless extension candidates. Maximal degree in co-relation 128. Up to 28 conditions per place. [2024-10-14 16:42:32,165 INFO L140 encePairwiseOnDemand]: 97/108 looper letters, 16 selfloop transitions, 6 changer transitions 0/88 dead transitions. [2024-10-14 16:42:32,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 88 transitions, 238 flow [2024-10-14 16:42:32,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:42:32,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:42:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2024-10-14 16:42:32,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8919753086419753 [2024-10-14 16:42:32,183 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 180 flow. Second operand 3 states and 289 transitions. [2024-10-14 16:42:32,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 88 transitions, 238 flow [2024-10-14 16:42:32,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 88 transitions, 226 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 16:42:32,194 INFO L231 Difference]: Finished difference. Result has 86 places, 86 transitions, 214 flow [2024-10-14 16:42:32,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=86, PETRI_TRANSITIONS=86} [2024-10-14 16:42:32,202 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, -2 predicate places. [2024-10-14 16:42:32,202 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 86 transitions, 214 flow [2024-10-14 16:42:32,203 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) [2024-10-14 16:42:32,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:42:32,204 INFO L204 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] [2024-10-14 16:42:32,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 16:42:32,205 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-14 16:42:32,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:42:32,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1854924123, now seen corresponding path program 1 times [2024-10-14 16:42:32,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:42:32,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498716058] [2024-10-14 16:42:32,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:42:32,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:42:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:42:32,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:42:32,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:42:32,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498716058] [2024-10-14 16:42:32,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498716058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:42:32,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:42:32,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:42:32,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843636824] [2024-10-14 16:42:32,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:42:32,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:42:32,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:42:32,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:42:32,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:42:32,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 108 [2024-10-14 16:42:32,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 86 transitions, 214 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) [2024-10-14 16:42:32,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:42:32,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 108 [2024-10-14 16:42:32,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:42:32,412 INFO L124 PetriNetUnfolderBase]: 38/273 cut-off events. [2024-10-14 16:42:32,413 INFO L125 PetriNetUnfolderBase]: For 54/58 co-relation queries the response was YES. [2024-10-14 16:42:32,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 273 events. 38/273 cut-off events. For 54/58 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1213 event pairs, 7 based on Foata normal form. 2/256 useless extension candidates. Maximal degree in co-relation 239. Up to 56 conditions per place. [2024-10-14 16:42:32,415 INFO L140 encePairwiseOnDemand]: 102/108 looper letters, 15 selfloop transitions, 7 changer transitions 0/92 dead transitions. [2024-10-14 16:42:32,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 92 transitions, 281 flow [2024-10-14 16:42:32,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:42:32,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:42:32,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-10-14 16:42:32,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9012345679012346 [2024-10-14 16:42:32,419 INFO L175 Difference]: Start difference. First operand has 86 places, 86 transitions, 214 flow. Second operand 3 states and 292 transitions. [2024-10-14 16:42:32,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 92 transitions, 281 flow [2024-10-14 16:42:32,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 92 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 16:42:32,425 INFO L231 Difference]: Finished difference. Result has 88 places, 91 transitions, 258 flow [2024-10-14 16:42:32,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=88, PETRI_TRANSITIONS=91} [2024-10-14 16:42:32,426 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-10-14 16:42:32,427 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 91 transitions, 258 flow [2024-10-14 16:42:32,427 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) [2024-10-14 16:42:32,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:42:32,427 INFO L204 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] [2024-10-14 16:42:32,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 16:42:32,428 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-14 16:42:32,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:42:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1178212460, now seen corresponding path program 1 times [2024-10-14 16:42:32,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:42:32,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384716716] [2024-10-14 16:42:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:42:32,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:42:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:42:32,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:42:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:42:32,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:42:32,502 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:42:32,503 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2024-10-14 16:42:32,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-10-14 16:42:32,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-10-14 16:42:32,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-10-14 16:42:32,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-10-14 16:42:32,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-10-14 16:42:32,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-10-14 16:42:32,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 11 remaining) [2024-10-14 16:42:32,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2024-10-14 16:42:32,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-10-14 16:42:32,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-10-14 16:42:32,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 16:42:32,510 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 16:42:32,545 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 16:42:32,546 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 16:42:32,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:42:32 BasicIcfg [2024-10-14 16:42:32,551 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 16:42:32,551 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 16:42:32,552 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 16:42:32,552 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 16:42:32,552 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:42:31" (3/4) ... [2024-10-14 16:42:32,553 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 16:42:32,554 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 16:42:32,555 INFO L158 Benchmark]: Toolchain (without parser) took 2201.81ms. Allocated memory is still 167.8MB. Free memory was 97.2MB in the beginning and 92.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-10-14 16:42:32,555 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 16:42:32,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 625.84ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 123.1MB in the end (delta: -26.2MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-10-14 16:42:32,556 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.93ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 120.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 16:42:32,557 INFO L158 Benchmark]: Boogie Preprocessor took 32.74ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 119.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 16:42:32,557 INFO L158 Benchmark]: RCFGBuilder took 388.00ms. Allocated memory is still 167.8MB. Free memory was 119.0MB in the beginning and 102.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-14 16:42:32,557 INFO L158 Benchmark]: TraceAbstraction took 1093.85ms. Allocated memory is still 167.8MB. Free memory was 102.1MB in the beginning and 92.0MB in the end (delta: 10.1MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2024-10-14 16:42:32,557 INFO L158 Benchmark]: Witness Printer took 3.14ms. Allocated memory is still 167.8MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 16:42:32,559 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 625.84ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 123.1MB in the end (delta: -26.2MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.93ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 120.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.74ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 119.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 388.00ms. Allocated memory is still 167.8MB. Free memory was 119.0MB in the beginning and 102.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1093.85ms. Allocated memory is still 167.8MB. Free memory was 102.1MB in the beginning and 92.0MB in the end (delta: 10.1MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 3.14ms. Allocated memory is still 167.8MB. Free memory is still 92.0MB. There was no memory consumed. 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}] [L1111] 1 v = calloc(8, sizeof(char)) VAL [\old(arg)={0:0}, arg={0:0}, 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 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=258occurred 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, 0.0s 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 RESULT: Ultimate proved your program to be incorrect! [2024-10-14 16:42:32,589 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