./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/05-lval_ls_05-glob_idx_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 735b3cc8 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/05-lval_ls_05-glob_idx_rc.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 2fcc1dcc31779a35e2f35b3e877295c0d57fe6307bda5e3a2aea7571c9345e88 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:35:16,294 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:35:16,345 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:35:16,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:35:16,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:35:16,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:35:16,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:35:16,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:35:16,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:35:16,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:35:16,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:35:16,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:35:16,370 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:35:16,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:35:16,371 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:35:16,372 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:35:16,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:35:16,372 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fcc1dcc31779a35e2f35b3e877295c0d57fe6307bda5e3a2aea7571c9345e88 [2025-03-14 01:35:16,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:35:16,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:35:16,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:35:16,615 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:35:16,615 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:35:16,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/05-lval_ls_05-glob_idx_rc.i [2025-03-14 01:35:17,775 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd4bfac64/e3178e8b859f4119bfdcbfb29a4ccf20/FLAG3b693ff22 [2025-03-14 01:35:18,041 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:35:18,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_05-glob_idx_rc.i [2025-03-14 01:35:18,059 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd4bfac64/e3178e8b859f4119bfdcbfb29a4ccf20/FLAG3b693ff22 [2025-03-14 01:35:18,327 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd4bfac64/e3178e8b859f4119bfdcbfb29a4ccf20 [2025-03-14 01:35:18,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:35:18,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:35:18,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:35:18,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:35:18,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:35:18,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3890155b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18, skipping insertion in model container [2025-03-14 01:35:18,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:35:18,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:35:18,593 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:35:18,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:35:18,663 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:35:18,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18 WrapperNode [2025-03-14 01:35:18,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:35:18,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:35:18,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:35:18,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:35:18,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,699 INFO L138 Inliner]: procedures = 160, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2025-03-14 01:35:18,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:35:18,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:35:18,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:35:18,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:35:18,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,716 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:35:18,730 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:35:18,730 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:35:18,730 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:35:18,731 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (1/1) ... [2025-03-14 01:35:18,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:35:18,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:18,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-14 01:35:18,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-14 01:35:18,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 01:35:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 01:35:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:35:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-14 01:35:18,779 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-14 01:35:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:35:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:35:18,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:35:18,780 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:35:18,862 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:35:18,864 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:35:18,990 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:35:18,990 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:35:18,991 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:35:19,000 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:35:19,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:19 BoogieIcfgContainer [2025-03-14 01:35:19,001 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:35:19,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:35:19,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:35:19,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:35:19,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:35:18" (1/3) ... [2025-03-14 01:35:19,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a95d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:35:19, skipping insertion in model container [2025-03-14 01:35:19,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:18" (2/3) ... [2025-03-14 01:35:19,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a95d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:35:19, skipping insertion in model container [2025-03-14 01:35:19,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:19" (3/3) ... [2025-03-14 01:35:19,010 INFO L128 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_05-glob_idx_rc.i [2025-03-14 01:35:19,020 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:35:19,021 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 05-lval_ls_05-glob_idx_rc.i that has 2 procedures, 70 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-14 01:35:19,021 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:35:19,056 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:35:19,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 142 flow [2025-03-14 01:35:19,116 INFO L124 PetriNetUnfolderBase]: 0/68 cut-off events. [2025-03-14 01:35:19,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:35:19,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 0/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-03-14 01:35:19,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 69 transitions, 142 flow [2025-03-14 01:35:19,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 139 flow [2025-03-14 01:35:19,130 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:35:19,137 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;@4103a9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:35:19,138 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-14 01:35:19,146 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:35:19,147 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2025-03-14 01:35:19,147 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:35:19,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:19,148 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] [2025-03-14 01:35:19,148 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:19,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:19,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1887606437, now seen corresponding path program 1 times [2025-03-14 01:35:19,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:19,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096586244] [2025-03-14 01:35:19,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:19,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:19,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-14 01:35:19,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-14 01:35:19,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:19,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:19,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:19,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096586244] [2025-03-14 01:35:19,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096586244] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:19,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:19,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:19,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676241137] [2025-03-14 01:35:19,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:19,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:19,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:19,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:19,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:19,976 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 69 [2025-03-14 01:35:19,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 139 flow. Second operand has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:19,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:19,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 69 [2025-03-14 01:35:19,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:20,169 INFO L124 PetriNetUnfolderBase]: 198/736 cut-off events. [2025-03-14 01:35:20,170 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:20,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 736 events. 198/736 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4540 event pairs, 41 based on Foata normal form. 0/708 useless extension candidates. Maximal degree in co-relation 1153. Up to 183 conditions per place. [2025-03-14 01:35:20,178 INFO L140 encePairwiseOnDemand]: 47/69 looper letters, 68 selfloop transitions, 42 changer transitions 0/154 dead transitions. [2025-03-14 01:35:20,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 154 transitions, 531 flow [2025-03-14 01:35:20,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:20,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 382 transitions. [2025-03-14 01:35:20,192 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9227053140096618 [2025-03-14 01:35:20,193 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 139 flow. Second operand 6 states and 382 transitions. [2025-03-14 01:35:20,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 154 transitions, 531 flow [2025-03-14 01:35:20,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 154 transitions, 530 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:20,204 INFO L231 Difference]: Finished difference. Result has 81 places, 114 transitions, 454 flow [2025-03-14 01:35:20,206 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=454, PETRI_PLACES=81, PETRI_TRANSITIONS=114} [2025-03-14 01:35:20,208 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 9 predicate places. [2025-03-14 01:35:20,210 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 114 transitions, 454 flow [2025-03-14 01:35:20,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:20,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:20,211 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:20,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:35:20,211 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:20,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:20,212 INFO L85 PathProgramCache]: Analyzing trace with hash -394271959, now seen corresponding path program 1 times [2025-03-14 01:35:20,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:20,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970472951] [2025-03-14 01:35:20,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:20,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:20,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-14 01:35:20,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-14 01:35:20,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:20,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:20,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:20,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970472951] [2025-03-14 01:35:20,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970472951] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:20,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:20,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:20,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750841296] [2025-03-14 01:35:20,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:20,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:20,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:20,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:20,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:20,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 69 [2025-03-14 01:35:20,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 114 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:20,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:20,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 69 [2025-03-14 01:35:20,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:20,871 INFO L124 PetriNetUnfolderBase]: 342/1084 cut-off events. [2025-03-14 01:35:20,871 INFO L125 PetriNetUnfolderBase]: For 512/543 co-relation queries the response was YES. [2025-03-14 01:35:20,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2750 conditions, 1084 events. 342/1084 cut-off events. For 512/543 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7197 event pairs, 67 based on Foata normal form. 19/1092 useless extension candidates. Maximal degree in co-relation 2718. Up to 476 conditions per place. [2025-03-14 01:35:20,878 INFO L140 encePairwiseOnDemand]: 52/69 looper letters, 90 selfloop transitions, 53 changer transitions 3/189 dead transitions. [2025-03-14 01:35:20,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 189 transitions, 1082 flow [2025-03-14 01:35:20,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:20,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:20,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 350 transitions. [2025-03-14 01:35:20,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8454106280193237 [2025-03-14 01:35:20,880 INFO L175 Difference]: Start difference. First operand has 81 places, 114 transitions, 454 flow. Second operand 6 states and 350 transitions. [2025-03-14 01:35:20,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 189 transitions, 1082 flow [2025-03-14 01:35:20,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 189 transitions, 1082 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:20,889 INFO L231 Difference]: Finished difference. Result has 91 places, 165 transitions, 960 flow [2025-03-14 01:35:20,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=960, PETRI_PLACES=91, PETRI_TRANSITIONS=165} [2025-03-14 01:35:20,891 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 19 predicate places. [2025-03-14 01:35:20,892 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 165 transitions, 960 flow [2025-03-14 01:35:20,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:20,892 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:20,892 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:20,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:35:20,893 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:20,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:20,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1842957630, now seen corresponding path program 1 times [2025-03-14 01:35:20,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:20,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231877709] [2025-03-14 01:35:20,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:20,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:20,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-14 01:35:20,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-14 01:35:20,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:20,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:21,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:21,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:21,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231877709] [2025-03-14 01:35:21,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231877709] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:21,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:21,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:21,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277512170] [2025-03-14 01:35:21,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:21,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:21,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:21,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:21,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:21,279 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 69 [2025-03-14 01:35:21,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 165 transitions, 960 flow. Second operand has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:21,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:21,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 69 [2025-03-14 01:35:21,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:21,530 INFO L124 PetriNetUnfolderBase]: 487/1411 cut-off events. [2025-03-14 01:35:21,531 INFO L125 PetriNetUnfolderBase]: For 2021/2065 co-relation queries the response was YES. [2025-03-14 01:35:21,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4638 conditions, 1411 events. 487/1411 cut-off events. For 2021/2065 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9803 event pairs, 86 based on Foata normal form. 23/1413 useless extension candidates. Maximal degree in co-relation 4600. Up to 695 conditions per place. [2025-03-14 01:35:21,541 INFO L140 encePairwiseOnDemand]: 52/69 looper letters, 111 selfloop transitions, 58 changer transitions 36/249 dead transitions. [2025-03-14 01:35:21,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 249 transitions, 1878 flow [2025-03-14 01:35:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:21,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:21,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 340 transitions. [2025-03-14 01:35:21,544 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.821256038647343 [2025-03-14 01:35:21,544 INFO L175 Difference]: Start difference. First operand has 91 places, 165 transitions, 960 flow. Second operand 6 states and 340 transitions. [2025-03-14 01:35:21,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 249 transitions, 1878 flow [2025-03-14 01:35:21,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 249 transitions, 1870 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:21,560 INFO L231 Difference]: Finished difference. Result has 100 places, 192 transitions, 1360 flow [2025-03-14 01:35:21,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1360, PETRI_PLACES=100, PETRI_TRANSITIONS=192} [2025-03-14 01:35:21,561 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 28 predicate places. [2025-03-14 01:35:21,561 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 192 transitions, 1360 flow [2025-03-14 01:35:21,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:21,561 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:21,561 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:21,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:35:21,561 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:21,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:21,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1906329042, now seen corresponding path program 1 times [2025-03-14 01:35:21,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:21,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798293366] [2025-03-14 01:35:21,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:21,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:21,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:35:21,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:35:21,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:21,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:35:21,585 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:35:21,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:35:21,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:35:21,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:21,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:35:21,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:35:21,616 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:35:21,617 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-03-14 01:35:21,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-03-14 01:35:21,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-03-14 01:35:21,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-03-14 01:35:21,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-03-14 01:35:21,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-03-14 01:35:21,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-03-14 01:35:21,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:35:21,621 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-14 01:35:21,642 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 01:35:21,642 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 01:35:21,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 01:35:21 BasicIcfg [2025-03-14 01:35:21,646 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 01:35:21,646 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 01:35:21,646 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 01:35:21,647 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 01:35:21,647 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:19" (3/4) ... [2025-03-14 01:35:21,648 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-14 01:35:21,682 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-03-14 01:35:21,709 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 01:35:21,709 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 01:35:21,709 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 01:35:21,710 INFO L158 Benchmark]: Toolchain (without parser) took 3379.35ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 86.7MB in the end (delta: 34.4MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2025-03-14 01:35:21,710 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:35:21,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.88ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 102.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-14 01:35:21,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.10ms. Allocated memory is still 167.8MB. Free memory was 102.5MB in the beginning and 100.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:35:21,710 INFO L158 Benchmark]: Boogie Preprocessor took 28.74ms. Allocated memory is still 167.8MB. Free memory was 100.7MB in the beginning and 99.7MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 01:35:21,710 INFO L158 Benchmark]: IcfgBuilder took 271.21ms. Allocated memory is still 167.8MB. Free memory was 99.7MB in the beginning and 85.9MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 01:35:21,711 INFO L158 Benchmark]: TraceAbstraction took 2642.78ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 93.6MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:35:21,711 INFO L158 Benchmark]: Witness Printer took 62.76ms. Allocated memory is still 167.8MB. Free memory was 93.6MB in the beginning and 86.7MB in the end (delta: 6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:35:21,712 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.88ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 102.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.10ms. Allocated memory is still 167.8MB. Free memory was 102.5MB in the beginning and 100.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.74ms. Allocated memory is still 167.8MB. Free memory was 100.7MB in the beginning and 99.7MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 271.21ms. Allocated memory is still 167.8MB. Free memory was 99.7MB in the beginning and 85.9MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2642.78ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 93.6MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.76ms. Allocated memory is still 167.8MB. Free memory was 93.6MB in the beginning and 86.7MB in the end (delta: 6.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 687]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data[10]; VAL [data={1:0}] [L685] 0 pthread_t id; VAL [data={1:0}] [L686] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data={1:0}, id=-1] [L687] EXPR 0 data[4] VAL [\old(arg)={0:0}, data={1:0}, id=-1] [L681] EXPR 1 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}] [L681] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}] [L687] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1] [L681] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}] [L687] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1] [L681] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}] [L687] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1] Now there is a data race (on the heap) between C: data[4]++ [681] and C: data[4]++ [687] - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 686]: 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: 681]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 681]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 7 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: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 231 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 824 IncrementalHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 2 mSDtfsCounter, 824 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1360occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-14 01:35:21,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)