./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:05:03,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:05:03,300 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:05:03,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:05:03,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:05:03,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:05:03,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:05:03,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:05:03,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:05:03,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:05:03,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:05:03,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:05:03,330 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:05:03,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:05:03,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:05:03,331 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:05:03,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:05:03,331 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:05:03,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:05:03,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:05:03,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:05:03,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:05:03,331 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:05:03,333 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:05:03,334 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:05:03,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:05:03,334 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:05:03,334 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:05:03,334 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:05:03,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:05:03,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:05:03,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:05:03,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:05:03,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:05:03,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:05:03,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:05:03,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:05:03,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:05:03,336 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:05:03,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:05:03,336 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:05:03,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:05:03,336 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:05:03,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:05:03,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:05:03,337 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:05:03,337 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-jdk21/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 -> 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d [2025-01-09 21:05:03,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:05:03,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:05:03,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:05:03,604 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:05:03,605 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:05:03,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2025-01-09 21:05:04,954 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2ab1270d0/afa3f8ed58de4c65ac5019721e3858dc/FLAG1b361e5ab [2025-01-09 21:05:05,302 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:05:05,303 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2025-01-09 21:05:05,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2ab1270d0/afa3f8ed58de4c65ac5019721e3858dc/FLAG1b361e5ab [2025-01-09 21:05:05,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2ab1270d0/afa3f8ed58de4c65ac5019721e3858dc [2025-01-09 21:05:05,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:05:05,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:05:05,554 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:05:05,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:05:05,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:05:05,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:05:05" (1/1) ... [2025-01-09 21:05:05,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce85ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:05, skipping insertion in model container [2025-01-09 21:05:05,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:05:05" (1/1) ... [2025-01-09 21:05:05,588 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:05:05,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:05:05,925 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:05:05,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:05:06,014 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:05:06,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06 WrapperNode [2025-01-09 21:05:06,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:05:06,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:05:06,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:05:06,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:05:06,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,052 INFO L138 Inliner]: procedures = 171, calls = 18, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 138 [2025-01-09 21:05:06,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:05:06,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:05:06,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:05:06,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:05:06,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,065 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:05:06,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:05:06,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:05:06,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:05:06,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (1/1) ... [2025-01-09 21:05:06,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:05:06,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:05:06,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:05:06,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:05:06,130 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-09 21:05:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-09 21:05:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:05:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:05:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:05:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:05:06,132 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:05:06,257 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:05:06,258 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:05:06,469 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:05:06,469 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:05:06,608 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:05:06,608 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 21:05:06,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:05:06 BoogieIcfgContainer [2025-01-09 21:05:06,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:05:06,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:05:06,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:05:06,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:05:06,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:05:05" (1/3) ... [2025-01-09 21:05:06,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30cac8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:05:06, skipping insertion in model container [2025-01-09 21:05:06,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:05:06" (2/3) ... [2025-01-09 21:05:06,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30cac8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:05:06, skipping insertion in model container [2025-01-09 21:05:06,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:05:06" (3/3) ... [2025-01-09 21:05:06,620 INFO L128 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2025-01-09 21:05:06,634 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:05:06,636 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 23_lu-fig2.fixed.i that has 2 procedures, 73 locations, 1 initial locations, 1 loop locations, and 18 error locations. [2025-01-09 21:05:06,636 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:05:06,685 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:05:06,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 152 flow [2025-01-09 21:05:06,758 INFO L124 PetriNetUnfolderBase]: 2/73 cut-off events. [2025-01-09 21:05:06,760 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:05:06,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 103 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2025-01-09 21:05:06,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 74 transitions, 152 flow [2025-01-09 21:05:06,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 73 transitions, 149 flow [2025-01-09 21:05:06,784 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:05:06,797 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;@4419e0f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:05:06,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-01-09 21:05:06,807 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:05:06,808 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2025-01-09 21:05:06,808 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:05:06,808 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:05:06,809 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] [2025-01-09 21:05:06,809 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-01-09 21:05:06,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:05:06,816 INFO L85 PathProgramCache]: Analyzing trace with hash 556248710, now seen corresponding path program 1 times [2025-01-09 21:05:06,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:05:06,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201428873] [2025-01-09 21:05:06,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:05:06,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:05:06,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 21:05:06,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 21:05:06,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:06,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:05:06,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:05:06,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:05:06,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201428873] [2025-01-09 21:05:06,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201428873] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:05:06,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:05:06,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:05:06,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421730021] [2025-01-09 21:05:06,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:05:06,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:05:07,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:05:07,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:05:07,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:05:07,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 74 [2025-01-09 21:05:07,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 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) [2025-01-09 21:05:07,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:05:07,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 74 [2025-01-09 21:05:07,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:05:07,078 INFO L124 PetriNetUnfolderBase]: 10/110 cut-off events. [2025-01-09 21:05:07,078 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:05:07,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 110 events. 10/110 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 222 event pairs, 9 based on Foata normal form. 2/102 useless extension candidates. Maximal degree in co-relation 117. Up to 26 conditions per place. [2025-01-09 21:05:07,081 INFO L140 encePairwiseOnDemand]: 58/74 looper letters, 7 selfloop transitions, 0 changer transitions 0/57 dead transitions. [2025-01-09 21:05:07,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 131 flow [2025-01-09 21:05:07,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:05:07,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:05:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 125 transitions. [2025-01-09 21:05:07,093 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8445945945945946 [2025-01-09 21:05:07,095 INFO L175 Difference]: Start difference. First operand has 75 places, 73 transitions, 149 flow. Second operand 2 states and 125 transitions. [2025-01-09 21:05:07,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 131 flow [2025-01-09 21:05:07,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 57 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:05:07,106 INFO L231 Difference]: Finished difference. Result has 60 places, 57 transitions, 116 flow [2025-01-09 21:05:07,108 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=116, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2025-01-09 21:05:07,113 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -15 predicate places. [2025-01-09 21:05:07,113 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 116 flow [2025-01-09 21:05:07,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 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) [2025-01-09 21:05:07,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:05:07,114 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] [2025-01-09 21:05:07,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:05:07,114 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-01-09 21:05:07,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:05:07,116 INFO L85 PathProgramCache]: Analyzing trace with hash -772148214, now seen corresponding path program 1 times [2025-01-09 21:05:07,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:05:07,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286770894] [2025-01-09 21:05:07,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:05:07,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:05:07,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-09 21:05:07,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-09 21:05:07,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:07,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:05:07,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:05:07,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:05:07,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286770894] [2025-01-09 21:05:07,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286770894] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:05:07,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:05:07,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:05:07,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568152374] [2025-01-09 21:05:07,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:05:07,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:05:07,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:05:07,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:05:07,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:05:07,239 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 74 [2025-01-09 21:05:07,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2025-01-09 21:05:07,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:05:07,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 74 [2025-01-09 21:05:07,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:05:07,322 INFO L124 PetriNetUnfolderBase]: 41/213 cut-off events. [2025-01-09 21:05:07,322 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:05:07,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 213 events. 41/213 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 853 event pairs, 23 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 307. Up to 73 conditions per place. [2025-01-09 21:05:07,324 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 12 selfloop transitions, 4 changer transitions 3/63 dead transitions. [2025-01-09 21:05:07,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 63 transitions, 166 flow [2025-01-09 21:05:07,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:05:07,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:05:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2025-01-09 21:05:07,326 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6981981981981982 [2025-01-09 21:05:07,326 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 116 flow. Second operand 3 states and 155 transitions. [2025-01-09 21:05:07,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 63 transitions, 166 flow [2025-01-09 21:05:07,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 63 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:05:07,330 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 146 flow [2025-01-09 21:05:07,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2025-01-09 21:05:07,331 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -11 predicate places. [2025-01-09 21:05:07,332 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 146 flow [2025-01-09 21:05:07,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2025-01-09 21:05:07,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:05:07,333 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] [2025-01-09 21:05:07,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:05:07,333 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-01-09 21:05:07,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:05:07,334 INFO L85 PathProgramCache]: Analyzing trace with hash 727777701, now seen corresponding path program 1 times [2025-01-09 21:05:07,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:05:07,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526725633] [2025-01-09 21:05:07,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:05:07,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:05:07,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 21:05:07,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 21:05:07,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:07,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:05:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:05:07,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:05:07,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526725633] [2025-01-09 21:05:07,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526725633] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:05:07,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:05:07,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:05:07,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904007284] [2025-01-09 21:05:07,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:05:07,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:05:07,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:05:07,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:05:07,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:05:07,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2025-01-09 21:05:07,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2025-01-09 21:05:07,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:05:07,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2025-01-09 21:05:07,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:05:07,456 INFO L124 PetriNetUnfolderBase]: 29/204 cut-off events. [2025-01-09 21:05:07,457 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-09 21:05:07,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 204 events. 29/204 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 815 event pairs, 2 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 295. Up to 38 conditions per place. [2025-01-09 21:05:07,458 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 11 selfloop transitions, 3 changer transitions 3/67 dead transitions. [2025-01-09 21:05:07,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 67 transitions, 194 flow [2025-01-09 21:05:07,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:05:07,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:05:07,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 162 transitions. [2025-01-09 21:05:07,460 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7297297297297297 [2025-01-09 21:05:07,460 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 146 flow. Second operand 3 states and 162 transitions. [2025-01-09 21:05:07,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 67 transitions, 194 flow [2025-01-09 21:05:07,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:05:07,463 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 160 flow [2025-01-09 21:05:07,463 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2025-01-09 21:05:07,464 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -9 predicate places. [2025-01-09 21:05:07,464 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 160 flow [2025-01-09 21:05:07,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2025-01-09 21:05:07,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:05:07,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:05:07,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:05:07,465 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-01-09 21:05:07,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:05:07,465 INFO L85 PathProgramCache]: Analyzing trace with hash 231009069, now seen corresponding path program 1 times [2025-01-09 21:05:07,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:05:07,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768722665] [2025-01-09 21:05:07,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:05:07,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:05:07,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-09 21:05:07,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-09 21:05:07,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:07,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:05:07,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:05:07,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:05:07,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768722665] [2025-01-09 21:05:07,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768722665] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:05:07,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:05:07,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:05:07,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245380465] [2025-01-09 21:05:07,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:05:07,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:05:07,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:05:07,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:05:07,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:05:07,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2025-01-09 21:05:07,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2025-01-09 21:05:07,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:05:07,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2025-01-09 21:05:07,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:05:07,612 INFO L124 PetriNetUnfolderBase]: 59/308 cut-off events. [2025-01-09 21:05:07,612 INFO L125 PetriNetUnfolderBase]: For 86/95 co-relation queries the response was YES. [2025-01-09 21:05:07,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 308 events. 59/308 cut-off events. For 86/95 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1516 event pairs, 2 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 536. Up to 94 conditions per place. [2025-01-09 21:05:07,617 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 13 selfloop transitions, 4 changer transitions 9/72 dead transitions. [2025-01-09 21:05:07,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 72 transitions, 236 flow [2025-01-09 21:05:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:05:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:05:07,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 162 transitions. [2025-01-09 21:05:07,619 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7297297297297297 [2025-01-09 21:05:07,619 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 160 flow. Second operand 3 states and 162 transitions. [2025-01-09 21:05:07,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 72 transitions, 236 flow [2025-01-09 21:05:07,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 72 transitions, 228 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:05:07,624 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 178 flow [2025-01-09 21:05:07,625 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2025-01-09 21:05:07,625 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -7 predicate places. [2025-01-09 21:05:07,625 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 178 flow [2025-01-09 21:05:07,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2025-01-09 21:05:07,626 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:05:07,626 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:05:07,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:05:07,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-01-09 21:05:07,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:05:07,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1647449413, now seen corresponding path program 1 times [2025-01-09 21:05:07,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:05:07,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671271912] [2025-01-09 21:05:07,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:05:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:05:07,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-09 21:05:07,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-09 21:05:07,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:07,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:05:07,653 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:05:07,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-09 21:05:07,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-09 21:05:07,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:07,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:05:07,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:05:07,702 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:05:07,703 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2025-01-09 21:05:07,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2025-01-09 21:05:07,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2025-01-09 21:05:07,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2025-01-09 21:05:07,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:05:07,708 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-01-09 21:05:07,755 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:05:07,755 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:05:07,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:05:07 BasicIcfg [2025-01-09 21:05:07,765 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:05:07,767 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:05:07,767 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:05:07,767 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:05:07,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:05:06" (3/4) ... [2025-01-09 21:05:07,768 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 21:05:07,825 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 10. [2025-01-09 21:05:07,870 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:05:07,870 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:05:07,870 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:05:07,873 INFO L158 Benchmark]: Toolchain (without parser) took 2319.92ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 64.5MB in the end (delta: 56.1MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2025-01-09 21:05:07,873 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 201.3MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:05:07,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.80ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 100.8MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 21:05:07,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.20ms. Allocated memory is still 167.8MB. Free memory was 100.8MB in the beginning and 98.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:05:07,874 INFO L158 Benchmark]: Boogie Preprocessor took 19.16ms. Allocated memory is still 167.8MB. Free memory was 98.9MB in the beginning and 97.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:05:07,875 INFO L158 Benchmark]: RCFGBuilder took 535.44ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 66.3MB in the end (delta: 31.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 21:05:07,875 INFO L158 Benchmark]: TraceAbstraction took 1154.89ms. Allocated memory is still 167.8MB. Free memory was 66.0MB in the beginning and 72.0MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:05:07,876 INFO L158 Benchmark]: Witness Printer took 103.57ms. Allocated memory is still 167.8MB. Free memory was 72.0MB in the beginning and 64.5MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:05:07,877 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 201.3MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.80ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 100.8MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.20ms. Allocated memory is still 167.8MB. Free memory was 100.8MB in the beginning and 98.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.16ms. Allocated memory is still 167.8MB. Free memory was 98.9MB in the beginning and 97.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 535.44ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 66.3MB in the end (delta: 31.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1154.89ms. Allocated memory is still 167.8MB. Free memory was 66.0MB in the beginning and 72.0MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 103.57ms. Allocated memory is still 167.8MB. Free memory was 72.0MB in the beginning and 64.5MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 724]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int mThread=0; VAL [mThread=0] [L689] 0 int start_main=0; VAL [mThread=0, start_main=0] [L690] 0 int mStartLock=0; VAL [mStartLock=0, mThread=0, start_main=0] [L691] 0 int __COUNT__ =0; VAL [__COUNT__=0, mStartLock=0, mThread=0, start_main=0] [L733] 0 pthread_t t; VAL [__COUNT__=0, mStartLock=0, mThread=0, start_main=0] [L734] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [__COUNT__=0, mStartLock=0, mThread=0, start_main=0, t=-1] [L710] 1 int PR_CreateThread__RES = 1; VAL [PR_CreateThread__RES=1, \old(arg)={0:0}, __COUNT__=0, arg={0:0}, mStartLock=0, mThread=0, start_main=0] [L711] CALL 1 __VERIFIER_atomic_acquire() [L694] EXPR 1 mStartLock==0 [L694] CALL 1 assume_abort_if_not(mStartLock==0) [L3] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(mStartLock==0) [L695] 1 mStartLock = 1 [L711] RET 1 __VERIFIER_atomic_acquire() [L712] 1 start_main=1 VAL [PR_CreateThread__RES=1, \old(arg)={0:0}, __COUNT__=0, arg={0:0}, mStartLock=1, mThread=0, start_main=1] [L735] CALL 0 thr2(0) [L724] 0 int self = mThread; VAL [\old(arg)={0:0}, __COUNT__=0, arg={0:0}, mStartLock=1, mThread=0, start_main=1] [L712] 1 start_main=1 VAL [PR_CreateThread__RES=1, \old(arg)={0:0}, __COUNT__=0, arg={0:0}, mStartLock=1, mThread=0, start_main=1] [L713] CALL 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L704] 1 __COUNT__ == 0 [L704] COND TRUE 1 __COUNT__ == 0 [L705] 1 mThread = PR_CreateThread__RES [L706] EXPR 1 __COUNT__ + 1 [L706] 1 __COUNT__ = __COUNT__ + 1 [L713] RET 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L724] 0 int self = mThread; VAL [\old(arg)={0:0}, __COUNT__=1, arg={0:0}, mStartLock=1, mThread=1, start_main=1] Now there is a data race on ~mThread~0 between C: mThread = PR_CreateThread__RES [705] and C: int self = mThread; [724] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: 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 3 procedures, 96 locations, 28 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=4, InterpolantAutomatonStates: 11, 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, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-01-09 21:05:07,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)