./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_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 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:28:37,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:28:37,510 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:28:37,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:28:37,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:28:37,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:28:37,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:28:37,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:28:37,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:28:37,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:28:37,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:28:37,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:28:37,565 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:28:37,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:28:37,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:28:37,566 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:28:37,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:28:37,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:28:37,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:28:37,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:28:37,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:28:37,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:28:37,572 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:28:37,572 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:28:37,572 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:28:37,573 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:28:37,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:28:37,573 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:28:37,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:28:37,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:28:37,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:28:37,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:28:37,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:28:37,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:28:37,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:28:37,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:28:37,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:28:37,577 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:28:37,577 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:28:37,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:28:37,578 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:28:37,578 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 [2024-11-12 12:28:37,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:28:37,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:28:37,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:28:37,881 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:28:37,881 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:28:37,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_rc.i [2024-11-12 12:28:39,289 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:28:39,580 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:28:39,580 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_rc.i [2024-11-12 12:28:39,602 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a92847883/49e70f397e0c4a9e86b4be9b581ad9c4/FLAGcedc5d206 [2024-11-12 12:28:39,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a92847883/49e70f397e0c4a9e86b4be9b581ad9c4 [2024-11-12 12:28:39,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:28:39,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:28:39,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:28:39,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:28:39,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:28:39,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:28:39" (1/1) ... [2024-11-12 12:28:39,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e2abd2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:39, skipping insertion in model container [2024-11-12 12:28:39,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:28:39" (1/1) ... [2024-11-12 12:28:39,682 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:28:40,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:28:40,142 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:28:40,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:28:40,248 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:28:40,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40 WrapperNode [2024-11-12 12:28:40,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:28:40,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:28:40,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:28:40,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:28:40,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,302 INFO L138 Inliner]: procedures = 256, calls = 3, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-11-12 12:28:40,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:28:40,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:28:40,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:28:40,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:28:40,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:28:40,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:28:40,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:28:40,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:28:40,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (1/1) ... [2024-11-12 12:28:40,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:28:40,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:28:40,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 12:28:40,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 12:28:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 12:28:40,440 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 12:28:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:28:40,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:28:40,442 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:28:40,579 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:28:40,580 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:28:40,647 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:28:40,647 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:28:40,663 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:28:40,664 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 12:28:40,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:28:40 BoogieIcfgContainer [2024-11-12 12:28:40,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:28:40,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:28:40,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:28:40,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:28:40,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:28:39" (1/3) ... [2024-11-12 12:28:40,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339c35bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:28:40, skipping insertion in model container [2024-11-12 12:28:40,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:40" (2/3) ... [2024-11-12 12:28:40,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339c35bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:28:40, skipping insertion in model container [2024-11-12 12:28:40,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:28:40" (3/3) ... [2024-11-12 12:28:40,676 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_20-stdfun_rc.i [2024-11-12 12:28:40,694 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:28:40,694 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-12 12:28:40,695 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:28:40,752 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:28:40,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 39 transitions, 82 flow [2024-11-12 12:28:40,806 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-11-12 12:28:40,806 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:28:40,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-12 12:28:40,811 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 39 transitions, 82 flow [2024-11-12 12:28:40,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 38 transitions, 79 flow [2024-11-12 12:28:40,826 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:28:40,832 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;@1b25587f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:28:40,832 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-12 12:28:40,838 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:28:40,838 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-12 12:28:40,838 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:28:40,839 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:28:40,839 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:28:40,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-12 12:28:40,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:28:40,846 INFO L85 PathProgramCache]: Analyzing trace with hash -339015500, now seen corresponding path program 1 times [2024-11-12 12:28:40,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:28:40,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449784206] [2024-11-12 12:28:40,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:28:40,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:28:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:28:41,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:28:41,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:28:41,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449784206] [2024-11-12 12:28:41,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449784206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:28:41,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:28:41,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:28:41,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103535675] [2024-11-12 12:28:41,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:28:41,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:28:41,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:28:41,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:28:41,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:28:41,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 39 [2024-11-12 12:28:41,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:28:41,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:28:41,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 39 [2024-11-12 12:28:41,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:28:41,240 INFO L124 PetriNetUnfolderBase]: 3/73 cut-off events. [2024-11-12 12:28:41,240 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:28:41,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 73 events. 3/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 205 event pairs, 1 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 76. Up to 10 conditions per place. [2024-11-12 12:28:41,246 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 5 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2024-11-12 12:28:41,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 41 transitions, 103 flow [2024-11-12 12:28:41,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:28:41,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:28:41,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-12 12:28:41,259 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9316239316239316 [2024-11-12 12:28:41,261 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 79 flow. Second operand 3 states and 109 transitions. [2024-11-12 12:28:41,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 41 transitions, 103 flow [2024-11-12 12:28:41,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:28:41,268 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 108 flow [2024-11-12 12:28:41,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2024-11-12 12:28:41,276 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-11-12 12:28:41,277 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 108 flow [2024-11-12 12:28:41,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:28:41,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:28:41,278 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:28:41,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:28:41,279 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-12 12:28:41,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:28:41,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1557886439, now seen corresponding path program 1 times [2024-11-12 12:28:41,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:28:41,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188674479] [2024-11-12 12:28:41,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:28:41,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:28:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:28:41,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:28:41,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:28:41,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188674479] [2024-11-12 12:28:41,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188674479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:28:41,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:28:41,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:28:41,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731305224] [2024-11-12 12:28:41,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:28:41,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:28:41,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:28:41,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:28:41,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:28:41,391 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 39 [2024-11-12 12:28:41,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:28:41,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:28:41,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 39 [2024-11-12 12:28:41,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:28:41,441 INFO L124 PetriNetUnfolderBase]: 19/132 cut-off events. [2024-11-12 12:28:41,443 INFO L125 PetriNetUnfolderBase]: For 59/65 co-relation queries the response was YES. [2024-11-12 12:28:41,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 132 events. 19/132 cut-off events. For 59/65 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 546 event pairs, 5 based on Foata normal form. 4/126 useless extension candidates. Maximal degree in co-relation 226. Up to 42 conditions per place. [2024-11-12 12:28:41,446 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 10 selfloop transitions, 7 changer transitions 0/46 dead transitions. [2024-11-12 12:28:41,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 46 transitions, 162 flow [2024-11-12 12:28:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:28:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:28:41,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-12 12:28:41,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2024-11-12 12:28:41,448 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 108 flow. Second operand 3 states and 102 transitions. [2024-11-12 12:28:41,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 46 transitions, 162 flow [2024-11-12 12:28:41,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 46 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:28:41,453 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 156 flow [2024-11-12 12:28:41,454 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2024-11-12 12:28:41,456 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2024-11-12 12:28:41,457 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 156 flow [2024-11-12 12:28:41,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:28:41,457 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:28:41,457 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:28:41,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:28:41,458 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-12 12:28:41,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:28:41,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1994117449, now seen corresponding path program 1 times [2024-11-12 12:28:41,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:28:41,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629225844] [2024-11-12 12:28:41,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:28:41,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:28:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:28:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:28:41,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:28:41,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629225844] [2024-11-12 12:28:41,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629225844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:28:41,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:28:41,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:28:41,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535644547] [2024-11-12 12:28:41,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:28:41,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:28:41,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:28:41,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:28:41,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:28:41,554 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 39 [2024-11-12 12:28:41,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:28:41,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:28:41,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 39 [2024-11-12 12:28:41,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:28:41,595 INFO L124 PetriNetUnfolderBase]: 16/137 cut-off events. [2024-11-12 12:28:41,595 INFO L125 PetriNetUnfolderBase]: For 85/97 co-relation queries the response was YES. [2024-11-12 12:28:41,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 137 events. 16/137 cut-off events. For 85/97 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 587 event pairs, 1 based on Foata normal form. 1/132 useless extension candidates. Maximal degree in co-relation 264. Up to 29 conditions per place. [2024-11-12 12:28:41,597 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 8 selfloop transitions, 5 changer transitions 5/49 dead transitions. [2024-11-12 12:28:41,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 49 transitions, 200 flow [2024-11-12 12:28:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:28:41,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:28:41,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-11-12 12:28:41,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2024-11-12 12:28:41,600 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 156 flow. Second operand 3 states and 105 transitions. [2024-11-12 12:28:41,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 49 transitions, 200 flow [2024-11-12 12:28:41,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:28:41,602 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 160 flow [2024-11-12 12:28:41,603 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2024-11-12 12:28:41,603 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2024-11-12 12:28:41,604 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 160 flow [2024-11-12 12:28:41,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:28:41,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:28:41,604 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:28:41,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:28:41,605 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-12 12:28:41,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:28:41,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1189439505, now seen corresponding path program 1 times [2024-11-12 12:28:41,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:28:41,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651364709] [2024-11-12 12:28:41,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:28:41,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:28:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:28:41,620 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:28:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:28:41,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:28:41,648 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:28:41,649 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2024-11-12 12:28:41,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-12 12:28:41,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-12 12:28:41,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-12 12:28:41,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-12 12:28:41,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-12 12:28:41,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:28:41,652 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-12 12:28:41,684 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 12:28:41,684 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 12:28:41,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:28:41 BasicIcfg [2024-11-12 12:28:41,690 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 12:28:41,691 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 12:28:41,691 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 12:28:41,691 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 12:28:41,692 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:28:40" (3/4) ... [2024-11-12 12:28:41,693 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-12 12:28:41,729 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 12:28:41,730 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 12:28:41,731 INFO L158 Benchmark]: Toolchain (without parser) took 2106.73ms. Allocated memory is still 159.4MB. Free memory was 122.7MB in the beginning and 60.8MB in the end (delta: 61.9MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2024-11-12 12:28:41,731 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 159.4MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 12:28:41,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 622.80ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 93.3MB in the end (delta: 28.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-12 12:28:41,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.84ms. Allocated memory is still 159.4MB. Free memory was 93.3MB in the beginning and 91.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 12:28:41,732 INFO L158 Benchmark]: Boogie Preprocessor took 27.03ms. Allocated memory is still 159.4MB. Free memory was 91.2MB in the beginning and 89.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 12:28:41,733 INFO L158 Benchmark]: RCFGBuilder took 330.25ms. Allocated memory is still 159.4MB. Free memory was 89.8MB in the beginning and 119.5MB in the end (delta: -29.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 12:28:41,733 INFO L158 Benchmark]: TraceAbstraction took 1024.55ms. Allocated memory is still 159.4MB. Free memory was 118.4MB in the beginning and 62.9MB in the end (delta: 55.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2024-11-12 12:28:41,734 INFO L158 Benchmark]: Witness Printer took 38.81ms. Allocated memory is still 159.4MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 12:28:41,736 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 159.4MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 622.80ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 93.3MB in the end (delta: 28.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.84ms. Allocated memory is still 159.4MB. Free memory was 93.3MB in the beginning and 91.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.03ms. Allocated memory is still 159.4MB. Free memory was 91.2MB in the beginning and 89.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.25ms. Allocated memory is still 159.4MB. Free memory was 89.8MB in the beginning and 119.5MB in the end (delta: -29.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1024.55ms. Allocated memory is still 159.4MB. Free memory was 118.4MB in the beginning and 62.9MB in the end (delta: 55.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Witness Printer took 38.81ms. Allocated memory is still 159.4MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L923] 0 pthread_t id; VAL [myglobal=0] [L924] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, id=-1, myglobal=0] [L919] 1 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, myglobal=0] [L919] 1 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, myglobal=0] Now there is a data race on ~myglobal~0 between C: scanf("%d", &myglobal) [925] and C: myglobal+1 [919] - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: 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: 919]: 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, 54 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 21 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-12 12:28:41,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE