This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-16 09:58:41,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-16 09:58:41,496 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-16 09:58:41,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-16 09:58:41,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-16 09:58:41,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-16 09:58:41,539 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-16 09:58:41,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-16 09:58:41,540 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-16 09:58:41,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-16 09:58:41,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-16 09:58:41,541 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-16 09:58:41,541 INFO L153 SettingsManager]: * Use SBE=true [2024-10-16 09:58:41,544 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-16 09:58:41,544 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-16 09:58:41,544 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-16 09:58:41,544 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-16 09:58:41,544 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-16 09:58:41,545 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-16 09:58:41,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-16 09:58:41,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-16 09:58:41,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-16 09:58:41,549 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-16 09:58:41,549 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-16 09:58:41,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-16 09:58:41,549 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-16 09:58:41,549 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-16 09:58:41,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-16 09:58:41,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-16 09:58:41,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-16 09:58:41,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 09:58:41,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-16 09:58:41,550 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-16 09:58:41,550 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-16 09:58:41,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-16 09:58:41,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-16 09:58:41,551 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-16 09:58:41,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-16 09:58:41,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-16 09:58:41,551 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-16 09:58:41,551 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-16 09:58:41,553 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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/UGemCutter-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 ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter 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 -> f17f6182d2330561fe6717b6a061d0dded698483f9e32b37a3b36e1144855a29 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: TraceCheck mode for conditional commutativity -> GENERATOR_WITH_CONTEXT [2024-10-16 09:58:41,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-16 09:58:41,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-16 09:58:41,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-16 09:58:41,842 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-16 09:58:41,842 INFO L274 PluginConnector]: CDTParser initialized [2024-10-16 09:58:41,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2b.i [2024-10-16 09:58:43,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-16 09:58:43,463 INFO L384 CDTParser]: Found 1 translation units. [2024-10-16 09:58:43,465 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i [2024-10-16 09:58:43,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f9b4bd1a8/7daada1581154d6d87023d6ffa5193a9/FLAG013499e2a [2024-10-16 09:58:43,496 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f9b4bd1a8/7daada1581154d6d87023d6ffa5193a9 [2024-10-16 09:58:43,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-16 09:58:43,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-16 09:58:43,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-16 09:58:43,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-16 09:58:43,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-16 09:58:43,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b0824b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43, skipping insertion in model container [2024-10-16 09:58:43,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,548 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-16 09:58:43,832 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i[30003,30016] [2024-10-16 09:58:43,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 09:58:43,857 INFO L200 MainTranslator]: Completed pre-run [2024-10-16 09:58:43,902 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i[30003,30016] [2024-10-16 09:58:43,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 09:58:43,937 INFO L204 MainTranslator]: Completed translation [2024-10-16 09:58:43,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43 WrapperNode [2024-10-16 09:58:43,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-16 09:58:43,938 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-16 09:58:43,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-16 09:58:43,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-16 09:58:43,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,974 INFO L138 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 114 [2024-10-16 09:58:43,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-16 09:58:43,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-16 09:58:43,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-16 09:58:43,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-16 09:58:43,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:43,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:44,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-16 09:58:44,005 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-16 09:58:44,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-16 09:58:44,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-16 09:58:44,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (1/1) ... [2024-10-16 09:58:44,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 09:58:44,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 09:58:44,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-16 09:58:44,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-16 09:58:44,074 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2024-10-16 09:58:44,075 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2024-10-16 09:58:44,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-16 09:58:44,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-16 09:58:44,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-16 09:58:44,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-16 09:58:44,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-16 09:58:44,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-16 09:58:44,076 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-16 09:58:44,195 INFO L238 CfgBuilder]: Building ICFG [2024-10-16 09:58:44,198 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-16 09:58:44,349 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-16 09:58:44,349 INFO L287 CfgBuilder]: Performing block encoding [2024-10-16 09:58:44,452 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-16 09:58:44,453 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-16 09:58:44,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:58:44 BoogieIcfgContainer [2024-10-16 09:58:44,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-16 09:58:44,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-16 09:58:44,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-16 09:58:44,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-16 09:58:44,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 09:58:43" (1/3) ... [2024-10-16 09:58:44,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d458dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:58:44, skipping insertion in model container [2024-10-16 09:58:44,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:58:43" (2/3) ... [2024-10-16 09:58:44,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d458dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:58:44, skipping insertion in model container [2024-10-16 09:58:44,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:58:44" (3/3) ... [2024-10-16 09:58:44,461 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2b.i [2024-10-16 09:58:44,474 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-16 09:58:44,474 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-16 09:58:44,474 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-16 09:58:44,501 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-16 09:58:44,533 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-16 09:58:44,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-16 09:58:44,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 09:58:44,536 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-16 09:58:44,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-16 09:58:44,607 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-16 09:58:44,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:58:44,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-16 09:58:44,627 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=PARTIAL_ORDER_FA, 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;@2da1a0e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR_WITH_CONTEXT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-16 09:58:44,627 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-16 09:58:44,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 09:58:44,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:58:44,942 INFO L85 PathProgramCache]: Analyzing trace with hash -44288212, now seen corresponding path program 1 times [2024-10-16 09:58:44,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 09:58:44,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618053290] [2024-10-16 09:58:44,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:58:44,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:58:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 09:58:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 09:58:45,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 09:58:45,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618053290] [2024-10-16 09:58:45,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618053290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 09:58:45,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 09:58:45,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-16 09:58:45,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930066063] [2024-10-16 09:58:45,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 09:58:45,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-16 09:58:45,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 09:58:45,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-16 09:58:45,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-16 09:58:45,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:58:45,222 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 09:58:45,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 09:58:45,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:58:45,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 09:58:45,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-16 09:58:45,373 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 09:58:45,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:58:45,523 INFO L85 PathProgramCache]: Analyzing trace with hash 656231071, now seen corresponding path program 1 times [2024-10-16 09:58:45,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 09:58:45,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813421027] [2024-10-16 09:58:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:58:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:58:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 09:58:45,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 09:58:45,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 09:58:45,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813421027] [2024-10-16 09:58:45,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813421027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 09:58:45,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 09:58:45,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-16 09:58:45,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756795981] [2024-10-16 09:58:45,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 09:58:45,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-16 09:58:45,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 09:58:45,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-16 09:58:45,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-16 09:58:45,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:58:45,721 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 09:58:45,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 09:58:45,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-16 09:58:45,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:58:45,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 09:58:45,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-16 09:58:45,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-16 09:58:45,807 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 09:58:45,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:58:45,945 INFO L85 PathProgramCache]: Analyzing trace with hash -512573358, now seen corresponding path program 1 times [2024-10-16 09:58:45,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 09:58:45,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053757009] [2024-10-16 09:58:45,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:58:45,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:58:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 09:58:45,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 09:58:45,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 09:58:45,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053757009] [2024-10-16 09:58:45,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053757009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 09:58:45,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 09:58:45,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-16 09:58:45,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891590517] [2024-10-16 09:58:45,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 09:58:45,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-16 09:58:45,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 09:58:45,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-16 09:58:45,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-16 09:58:45,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:58:45,991 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 09:58:45,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 09:58:45,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-16 09:58:45,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-16 09:58:45,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:58:46,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 09:58:46,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-16 09:58:46,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-16 09:58:46,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-16 09:58:46,073 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 09:58:46,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:58:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash 272194207, now seen corresponding path program 2 times [2024-10-16 09:58:46,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 09:58:46,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101947098] [2024-10-16 09:58:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:58:46,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:58:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 09:58:46,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 09:58:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 09:58:46,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-16 09:58:46,323 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-16 09:58:46,323 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-10-16 09:58:46,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-10-16 09:58:46,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-16 09:58:46,334 INFO L414 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-10-16 09:58:46,380 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-16 09:58:46,381 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-16 09:58:46,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 09:58:46 BasicIcfg [2024-10-16 09:58:46,383 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-16 09:58:46,383 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-16 09:58:46,383 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-16 09:58:46,384 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-16 09:58:46,384 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:58:44" (3/4) ... [2024-10-16 09:58:46,385 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-16 09:58:46,443 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-16 09:58:46,444 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-16 09:58:46,444 INFO L158 Benchmark]: Toolchain (without parser) took 2944.41ms. Allocated memory was 73.4MB in the beginning and 136.3MB in the end (delta: 62.9MB). Free memory was 32.7MB in the beginning and 109.4MB in the end (delta: -76.7MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2024-10-16 09:58:46,444 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-16 09:58:46,444 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.76ms. Allocated memory is still 73.4MB. Free memory was 32.5MB in the beginning and 36.0MB in the end (delta: -3.6MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-10-16 09:58:46,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.76ms. Allocated memory is still 73.4MB. Free memory was 36.0MB in the beginning and 33.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-16 09:58:46,445 INFO L158 Benchmark]: Boogie Preprocessor took 25.36ms. Allocated memory is still 73.4MB. Free memory was 33.9MB in the beginning and 32.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-16 09:58:46,445 INFO L158 Benchmark]: RCFGBuilder took 448.61ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 32.5MB in the beginning and 66.8MB in the end (delta: -34.3MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-10-16 09:58:46,445 INFO L158 Benchmark]: TraceAbstraction took 1927.03ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 65.7MB in the beginning and 56.6MB in the end (delta: 9.1MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2024-10-16 09:58:46,445 INFO L158 Benchmark]: Witness Printer took 60.20ms. Allocated memory is still 136.3MB. Free memory was 56.6MB in the beginning and 109.4MB in the end (delta: -52.9MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2024-10-16 09:58:46,446 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.76ms. Allocated memory is still 73.4MB. Free memory was 32.5MB in the beginning and 36.0MB in the end (delta: -3.6MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.76ms. Allocated memory is still 73.4MB. Free memory was 36.0MB in the beginning and 33.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.36ms. Allocated memory is still 73.4MB. Free memory was 33.9MB in the beginning and 32.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.61ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 32.5MB in the beginning and 66.8MB in the end (delta: -34.3MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1927.03ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 65.7MB in the beginning and 56.6MB in the end (delta: 9.1MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Witness Printer took 60.20ms. Allocated memory is still 136.3MB. Free memory was 56.6MB in the beginning and 109.4MB in the end (delta: -52.9MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 500, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 28, dependent conditional: 19, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 488, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 488, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 488, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 511, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 39, dependent conditional: 23, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 511, independent: 472, independent conditional: 0, independent unconditional: 472, dependent: 39, dependent conditional: 12, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 511, independent: 472, independent conditional: 0, independent unconditional: 472, dependent: 39, dependent conditional: 12, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 380, independent: 366, independent conditional: 0, independent unconditional: 366, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 380, independent: 365, independent conditional: 0, independent unconditional: 365, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 306, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 300, dependent conditional: 73, dependent unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 511, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 380, unknown conditional: 6, unknown unconditional: 374] , Statistics on independence cache: Total cache size (in pairs): 380, Positive cache size: 366, Positive conditional cache size: 0, Positive unconditional cache size: 366, Negative cache size: 14, Negative conditional cache size: 6, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 117, Maximal queried relation: 3, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 511, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 39, dependent conditional: 23, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 511, independent: 472, independent conditional: 0, independent unconditional: 472, dependent: 39, dependent conditional: 12, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 511, independent: 472, independent conditional: 0, independent unconditional: 472, dependent: 39, dependent conditional: 12, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 380, independent: 366, independent conditional: 0, independent unconditional: 366, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 380, independent: 365, independent conditional: 0, independent unconditional: 365, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 306, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 300, dependent conditional: 73, dependent unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 511, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 380, unknown conditional: 6, unknown unconditional: 374] , Statistics on independence cache: Total cache size (in pairs): 380, Positive cache size: 366, Positive conditional cache size: 0, Positive unconditional cache size: 366, Negative cache size: 14, Negative conditional cache size: 6, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 117 ], Independence queries for same thread: 12, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 37, Number of trivial persistent sets: 19, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 374, independent: 366, independent conditional: 0, independent unconditional: 366, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 500, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 28, dependent conditional: 19, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 488, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 488, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 488, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 511, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 39, dependent conditional: 23, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 511, independent: 472, independent conditional: 0, independent unconditional: 472, dependent: 39, dependent conditional: 12, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 511, independent: 472, independent conditional: 0, independent unconditional: 472, dependent: 39, dependent conditional: 12, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 380, independent: 366, independent conditional: 0, independent unconditional: 366, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 380, independent: 365, independent conditional: 0, independent unconditional: 365, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 306, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 300, dependent conditional: 73, dependent unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 511, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 380, unknown conditional: 6, unknown unconditional: 374] , Statistics on independence cache: Total cache size (in pairs): 380, Positive cache size: 366, Positive conditional cache size: 0, Positive unconditional cache size: 366, Negative cache size: 14, Negative conditional cache size: 6, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 117, Maximal queried relation: 3, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 511, independent: 472, independent conditional: 106, independent unconditional: 366, dependent: 39, dependent conditional: 23, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 511, independent: 472, independent conditional: 0, independent unconditional: 472, dependent: 39, dependent conditional: 12, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 511, independent: 472, independent conditional: 0, independent unconditional: 472, dependent: 39, dependent conditional: 12, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 380, independent: 366, independent conditional: 0, independent unconditional: 366, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 380, independent: 365, independent conditional: 0, independent unconditional: 365, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 306, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 300, dependent conditional: 73, dependent unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 511, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 380, unknown conditional: 6, unknown unconditional: 374] , Statistics on independence cache: Total cache size (in pairs): 380, Positive cache size: 366, Positive conditional cache size: 0, Positive unconditional cache size: 366, Negative cache size: 14, Negative conditional cache size: 6, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 117 ], Independence queries for same thread: 12 - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int stoppingFlag; [L698] 0 volatile int pendingIo; [L699] 0 volatile int stoppingEvent; [L700] 0 volatile int stopped; [L756] 0 pthread_t t; [L757] 0 pendingIo = 1 [L758] 0 stoppingFlag = 0 [L759] 0 stoppingEvent = 0 [L760] 0 stopped = 0 [L761] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t=-1] [L762] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L705] COND FALSE 0 !(\read(lsf)) VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L709] 0 int lp = pendingIo; VAL [lp=1, lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L745] 1 stoppingFlag = 1 VAL [\old(arg)={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L747] CALL 1 BCSP_IoDecrement() [L725] 1 int pending; [L726] CALL, EXPR 1 dec() [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L712] 0 pendingIo = lp + 1 VAL [lp=1, lsf=0, pendingIo=2, stopped=0, stoppingEvent=0, stoppingFlag=1] [L715] 0 return 0; VAL [\result=0, lsf=0, pendingIo=2, stopped=0, stoppingEvent=0, stoppingFlag=1] [L735] RET, EXPR 0 BCSP_IoIncrement() [L735] 0 status = BCSP_IoIncrement() [L736] COND TRUE 0 status == 0 VAL [\old(arg)={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L722] 1 return tmp; [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() [L727] COND TRUE 1 pending == 0 VAL [pending=0, pendingIo=2, stopped=0, stoppingEvent=0, stoppingFlag=1] [L729] 1 stoppingEvent = 1 VAL [pending=0, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L747] RET 1 BCSP_IoDecrement() [L749] 1 int lse = stoppingEvent; VAL [\old(arg)={0:0}, arg={0:0}, lse=1, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L751] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) [L751] RET 1 assume_abort_if_not(lse) [L752] 1 stopped = 1 VAL [\old(arg)={0:0}, arg={0:0}, lse=1, pendingIo=2, stopped=1, stoppingEvent=1, stoppingFlag=1] [L737] 0 int local_assertion = !stopped; VAL [\old(arg)={0:0}, arg={0:0}, local_assertion=0, pendingIo=2, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L738] CALL 0 __VERIFIER_assert(local_assertion) [L689] COND TRUE 0 !(cond) VAL [\old(cond)=0, cond=0, pendingIo=2, stopped=1, stoppingEvent=1, stoppingFlag=1] [L690] 0 reach_error() VAL [\old(cond)=0, cond=0, pendingIo=2, stopped=1, stoppingEvent=1, stoppingFlag=1] - UnprovableResult [Line: 761]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 50 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, 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, 0.4s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 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: ConditionalCommutativityOverallTime: 0.6s, ConditionalCommutativityCheckTime: 0.6s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 8, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2024-10-16 09:58:46,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-10-16 09:58:46,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...