This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-16 09:55:23,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-16 09:55:23,384 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-16 09:55:23,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-16 09:55:23,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-16 09:55:23,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-16 09:55:23,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-16 09:55:23,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-16 09:55:23,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-16 09:55:23,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-16 09:55:23,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-16 09:55:23,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-16 09:55:23,424 INFO L153 SettingsManager]: * Use SBE=true [2024-10-16 09:55:23,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-16 09:55:23,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-16 09:55:23,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-16 09:55:23,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-16 09:55:23,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-16 09:55:23,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-16 09:55:23,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-16 09:55:23,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-16 09:55:23,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-16 09:55:23,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-16 09:55:23,434 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-16 09:55:23,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-16 09:55:23,434 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-16 09:55:23,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-16 09:55:23,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-16 09:55:23,435 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-16 09:55:23,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-16 09:55:23,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 09:55:23,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-16 09:55:23,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-16 09:55:23,436 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-16 09:55:23,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-16 09:55:23,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-16 09:55:23,448 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-16 09:55:23,448 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-16 09:55:23,448 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-16 09:55:23,448 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-16 09:55:23,449 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-16 09:55:23,451 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 -> 9df54eb091d78e0f82ec179542e5b1e4fed45243a056538ca557e474796bb018 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 09:55:23,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-16 09:55:23,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-16 09:55:23,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-16 09:55:23,813 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-16 09:55:23,814 INFO L274 PluginConnector]: CDTParser initialized [2024-10-16 09:55:23,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i [2024-10-16 09:55:25,410 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-16 09:55:25,683 INFO L384 CDTParser]: Found 1 translation units. [2024-10-16 09:55:25,685 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i [2024-10-16 09:55:25,707 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0c0241679/cd144859c2f747babed1ed7a34319390/FLAGf52aa0cb2 [2024-10-16 09:55:25,722 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0c0241679/cd144859c2f747babed1ed7a34319390 [2024-10-16 09:55:25,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-16 09:55:25,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-16 09:55:25,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-16 09:55:25,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-16 09:55:25,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-16 09:55:25,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:55:25" (1/1) ... [2024-10-16 09:55:25,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d98e5ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:25, skipping insertion in model container [2024-10-16 09:55:25,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:55:25" (1/1) ... [2024-10-16 09:55:25,788 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-16 09:55:26,000 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-wmm/safe029_power.opt_pso.opt_rmo.opt.i[967,980] [2024-10-16 09:55:26,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 09:55:26,200 INFO L200 MainTranslator]: Completed pre-run [2024-10-16 09:55:26,211 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-wmm/safe029_power.opt_pso.opt_rmo.opt.i[967,980] [2024-10-16 09:55:26,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 09:55:26,294 INFO L204 MainTranslator]: Completed translation [2024-10-16 09:55:26,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26 WrapperNode [2024-10-16 09:55:26,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-16 09:55:26,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-16 09:55:26,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-16 09:55:26,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-16 09:55:26,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,352 INFO L138 Inliner]: procedures = 174, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 121 [2024-10-16 09:55:26,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-16 09:55:26,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-16 09:55:26,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-16 09:55:26,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-16 09:55:26,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,378 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-16 09:55:26,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-16 09:55:26,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-16 09:55:26,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-16 09:55:26,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (1/1) ... [2024-10-16 09:55:26,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 09:55:26,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 09:55:26,426 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 09:55:26,429 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 09:55:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-16 09:55:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-16 09:55:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-16 09:55:26,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-16 09:55:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-16 09:55:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-16 09:55:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-16 09:55:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-16 09:55:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-16 09:55:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-16 09:55:26,482 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 09:55:26,606 INFO L238 CfgBuilder]: Building ICFG [2024-10-16 09:55:26,609 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-16 09:55:26,921 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-16 09:55:26,922 INFO L287 CfgBuilder]: Performing block encoding [2024-10-16 09:55:27,120 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-16 09:55:27,122 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-16 09:55:27,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:55:27 BoogieIcfgContainer [2024-10-16 09:55:27,123 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-16 09:55:27,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-16 09:55:27,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-16 09:55:27,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-16 09:55:27,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 09:55:25" (1/3) ... [2024-10-16 09:55:27,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf1b7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:55:27, skipping insertion in model container [2024-10-16 09:55:27,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:26" (2/3) ... [2024-10-16 09:55:27,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf1b7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:55:27, skipping insertion in model container [2024-10-16 09:55:27,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:55:27" (3/3) ... [2024-10-16 09:55:27,131 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_power.opt_pso.opt_rmo.opt.i [2024-10-16 09:55:27,145 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-16 09:55:27,145 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-16 09:55:27,145 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-16 09:55:27,189 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-16 09:55:27,233 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-16 09:55:27,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-16 09:55:27,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 09:55:27,236 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 09:55:27,237 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 09:55:27,325 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-16 09:55:27,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:55:27,345 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Thread1of1ForFork0 ======== [2024-10-16 09:55:27,354 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;@1d78fa68, 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 09:55:27,355 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-16 09:55:29,262 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-16 09:55:29,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:55:29,361 INFO L85 PathProgramCache]: Analyzing trace with hash 480554746, now seen corresponding path program 1 times [2024-10-16 09:55:29,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 09:55:29,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544280128] [2024-10-16 09:55:29,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:55:29,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:55:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 09:55:29,758 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 09:55:29,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 09:55:29,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544280128] [2024-10-16 09:55:29,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544280128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 09:55:29,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 09:55:29,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-16 09:55:29,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791022203] [2024-10-16 09:55:29,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 09:55:29,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-16 09:55:29,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 09:55:29,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-16 09:55:29,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-16 09:55:29,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:55:29,808 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 09:55:29,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 09:55:29,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:56:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 09:56:35,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-16 09:56:35,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-16 09:56:35,516 INFO L414 BasicCegarLoop]: Path program histogram: [1] [2024-10-16 09:56:35,519 INFO L312 ceAbstractionStarter]: Result for error location P1Thread1of1ForFork0 was SAFE (1/2) [2024-10-16 09:56:35,524 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-16 09:56:35,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-16 09:56:35,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 09:56:35,544 INFO L229 MonitoredProcess]: Starting monitored process 3 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 09:56:35,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-10-16 09:56:35,580 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-16 09:56:35,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:56:35,580 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-16 09:56:35,582 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;@1d78fa68, 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 09:56:35,582 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-16 09:56:39,330 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 09:56:39,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:56:39,373 INFO L85 PathProgramCache]: Analyzing trace with hash -195018289, now seen corresponding path program 1 times [2024-10-16 09:56:39,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 09:56:39,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630394697] [2024-10-16 09:56:39,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:56:39,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:56:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 09:56:39,719 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 09:56:39,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 09:56:39,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630394697] [2024-10-16 09:56:39,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630394697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 09:56:39,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 09:56:39,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-16 09:56:39,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83891260] [2024-10-16 09:56:39,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 09:56:39,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-16 09:56:39,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 09:56:39,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-16 09:56:39,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-16 09:56:39,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:56:39,721 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 09:56:39,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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 09:56:39,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:56:44,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 09:56:44,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-16 09:56:44,139 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 09:56:44,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:56:44,196 INFO L85 PathProgramCache]: Analyzing trace with hash -987456110, now seen corresponding path program 1 times [2024-10-16 09:56:44,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 09:56:44,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137372043] [2024-10-16 09:56:44,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:56:44,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:56:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 09:56:44,465 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 09:56:44,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 09:56:44,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137372043] [2024-10-16 09:56:44,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137372043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 09:56:44,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 09:56:44,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-16 09:56:44,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191252182] [2024-10-16 09:56:44,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 09:56:44,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-16 09:56:44,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 09:56:44,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-16 09:56:44,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-16 09:56:44,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:56:44,474 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 09:56:44,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 09:56:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 09:56:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:56:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 09:56:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 09:56:49,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-16 09:56:49,202 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 09:56:49,351 INFO L85 PathProgramCache]: Analyzing trace with hash 188041484, now seen corresponding path program 1 times [2024-10-16 09:56:49,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:56:49,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:56:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 09:56:49,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 09:56:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 09:56:49,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:56:49,467 INFO L85 PathProgramCache]: Analyzing trace with hash -397673486, now seen corresponding path program 1 times [2024-10-16 09:56:49,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 09:56:49,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651939801] [2024-10-16 09:56:49,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:56:49,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:56:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 09:56:50,772 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 09:56:50,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 09:56:50,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651939801] [2024-10-16 09:56:50,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651939801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 09:56:50,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 09:56:50,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-16 09:56:50,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370565334] [2024-10-16 09:56:50,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 09:56:50,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-16 09:56:50,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 09:56:50,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-16 09:56:50,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-16 09:56:50,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:56:50,776 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 09:56:50,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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 09:56:50,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 09:56:50,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-16 09:56:50,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 09:56:58,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 09:56:58,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 09:56:58,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-16 09:56:58,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3 [2024-10-16 09:56:58,494 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 09:56:59,416 INFO L85 PathProgramCache]: Analyzing trace with hash -2078765593, now seen corresponding path program 1 times [2024-10-16 09:56:59,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:56:59,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:56:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 09:56:59,447 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 09:56:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 09:56:59,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 09:56:59,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1030211344, now seen corresponding path program 2 times [2024-10-16 09:56:59,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 09:56:59,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025855981] [2024-10-16 09:56:59,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 09:56:59,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 09:56:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 09:56:59,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 09:56:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 09:56:59,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-16 09:56:59,603 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-16 09:56:59,603 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-10-16 09:56:59,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-10-16 09:56:59,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-10-16 09:56:59,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,SelfDestructingSolverStorable5 [2024-10-16 09:56:59,609 INFO L414 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-10-16 09:56:59,610 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (2/2) [2024-10-16 09:56:59,678 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-16 09:56:59,679 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-16 09:56:59,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 09:56:59 BasicIcfg [2024-10-16 09:56:59,683 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-16 09:56:59,684 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-16 09:56:59,685 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-16 09:56:59,685 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-16 09:56:59,686 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:55:27" (3/4) ... [2024-10-16 09:56:59,687 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-16 09:56:59,751 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-16 09:56:59,752 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-16 09:56:59,752 INFO L158 Benchmark]: Toolchain (without parser) took 94025.36ms. Allocated memory was 65.0MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 30.9MB in the beginning and 712.0MB in the end (delta: -681.1MB). Peak memory consumption was 757.2MB. Max. memory is 16.1GB. [2024-10-16 09:56:59,752 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 41.9MB. Free memory is still 25.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-16 09:56:59,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 565.74ms. Allocated memory is still 65.0MB. Free memory was 30.7MB in the beginning and 25.2MB in the end (delta: 5.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-10-16 09:56:59,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.34ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 25.2MB in the beginning and 62.7MB in the end (delta: -37.4MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2024-10-16 09:56:59,753 INFO L158 Benchmark]: Boogie Preprocessor took 32.37ms. Allocated memory is still 86.0MB. Free memory was 62.7MB in the beginning and 61.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-16 09:56:59,754 INFO L158 Benchmark]: RCFGBuilder took 736.77ms. Allocated memory is still 86.0MB. Free memory was 61.0MB in the beginning and 41.0MB in the end (delta: 20.0MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2024-10-16 09:56:59,754 INFO L158 Benchmark]: TraceAbstraction took 92558.47ms. Allocated memory was 86.0MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 40.0MB in the beginning and 719.3MB in the end (delta: -679.3MB). Peak memory consumption was 737.2MB. Max. memory is 16.1GB. [2024-10-16 09:56:59,754 INFO L158 Benchmark]: Witness Printer took 67.62ms. Allocated memory is still 1.5GB. Free memory was 719.3MB in the beginning and 712.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-16 09:56:59,756 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 41.9MB. Free memory is still 25.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 565.74ms. Allocated memory is still 65.0MB. Free memory was 30.7MB in the beginning and 25.2MB in the end (delta: 5.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.34ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 25.2MB in the beginning and 62.7MB in the end (delta: -37.4MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.37ms. Allocated memory is still 86.0MB. Free memory was 62.7MB in the beginning and 61.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 736.77ms. Allocated memory is still 86.0MB. Free memory was 61.0MB in the beginning and 41.0MB in the end (delta: 20.0MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * TraceAbstraction took 92558.47ms. Allocated memory was 86.0MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 40.0MB in the beginning and 719.3MB in the end (delta: -679.3MB). Peak memory consumption was 737.2MB. Max. memory is 16.1GB. * Witness Printer took 67.62ms. Allocated memory is still 1.5GB. Free memory was 719.3MB in the beginning and 712.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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: 597, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 57, dependent conditional: 34, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 593, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 53, dependent conditional: 31, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 593, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 53, dependent conditional: 31, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 593, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 53, dependent conditional: 31, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 703, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 163, dependent conditional: 119, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 703, independent: 540, independent conditional: 26, independent unconditional: 514, dependent: 163, dependent conditional: 30, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 703, independent: 540, independent conditional: 26, independent unconditional: 514, dependent: 163, dependent conditional: 30, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 318, independent: 286, independent conditional: 4, independent unconditional: 282, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 318, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 38, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67428, independent: 5644, independent conditional: 5563, independent unconditional: 81, dependent: 61785, dependent conditional: 17490, dependent unconditional: 44295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 703, independent: 254, independent conditional: 22, independent unconditional: 232, dependent: 131, dependent conditional: 23, dependent unconditional: 108, unknown: 318, unknown conditional: 11, unknown unconditional: 307] , Statistics on independence cache: Total cache size (in pairs): 318, Positive cache size: 286, Positive conditional cache size: 4, Positive unconditional cache size: 282, Negative cache size: 32, Negative conditional cache size: 7, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 321, Maximal queried relation: 1, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 703, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 163, dependent conditional: 119, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 703, independent: 540, independent conditional: 26, independent unconditional: 514, dependent: 163, dependent conditional: 30, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 703, independent: 540, independent conditional: 26, independent unconditional: 514, dependent: 163, dependent conditional: 30, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 318, independent: 286, independent conditional: 4, independent unconditional: 282, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 318, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 38, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67428, independent: 5644, independent conditional: 5563, independent unconditional: 81, dependent: 61785, dependent conditional: 17490, dependent unconditional: 44295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 703, independent: 254, independent conditional: 22, independent unconditional: 232, dependent: 131, dependent conditional: 23, dependent unconditional: 108, unknown: 318, unknown conditional: 11, unknown unconditional: 307] , Statistics on independence cache: Total cache size (in pairs): 318, Positive cache size: 286, Positive conditional cache size: 4, Positive unconditional cache size: 282, Negative cache size: 32, Negative conditional cache size: 7, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 321 ], Independence queries for same thread: 4, Persistent sets #1 benchmarks: Persistent set computation time: 41.8s, Number of persistent set computation: 65, Number of trivial persistent sets: 47, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 304, independent: 282, independent conditional: 0, independent unconditional: 282, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 597, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 57, dependent conditional: 34, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 593, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 53, dependent conditional: 31, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 593, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 53, dependent conditional: 31, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 593, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 53, dependent conditional: 31, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 703, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 163, dependent conditional: 119, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 703, independent: 540, independent conditional: 26, independent unconditional: 514, dependent: 163, dependent conditional: 30, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 703, independent: 540, independent conditional: 26, independent unconditional: 514, dependent: 163, dependent conditional: 30, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 318, independent: 286, independent conditional: 4, independent unconditional: 282, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 318, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 38, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67428, independent: 5644, independent conditional: 5563, independent unconditional: 81, dependent: 61785, dependent conditional: 17490, dependent unconditional: 44295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 703, independent: 254, independent conditional: 22, independent unconditional: 232, dependent: 131, dependent conditional: 23, dependent unconditional: 108, unknown: 318, unknown conditional: 11, unknown unconditional: 307] , Statistics on independence cache: Total cache size (in pairs): 318, Positive cache size: 286, Positive conditional cache size: 4, Positive unconditional cache size: 282, Negative cache size: 32, Negative conditional cache size: 7, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 321, Maximal queried relation: 1, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 703, independent: 540, independent conditional: 258, independent unconditional: 282, dependent: 163, dependent conditional: 119, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 703, independent: 540, independent conditional: 26, independent unconditional: 514, dependent: 163, dependent conditional: 30, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 703, independent: 540, independent conditional: 26, independent unconditional: 514, dependent: 163, dependent conditional: 30, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 318, independent: 286, independent conditional: 4, independent unconditional: 282, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 318, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 38, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 32, dependent conditional: 7, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67428, independent: 5644, independent conditional: 5563, independent unconditional: 81, dependent: 61785, dependent conditional: 17490, dependent unconditional: 44295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 703, independent: 254, independent conditional: 22, independent unconditional: 232, dependent: 131, dependent conditional: 23, dependent unconditional: 108, unknown: 318, unknown conditional: 11, unknown unconditional: 307] , Statistics on independence cache: Total cache size (in pairs): 318, Positive cache size: 286, Positive conditional cache size: 4, Positive unconditional cache size: 282, Negative cache size: 32, Negative conditional cache size: 7, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 321 ], Independence queries for same thread: 4 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 491, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 38, dependent conditional: 18, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 30, dependent conditional: 11, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 483, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 30, dependent conditional: 11, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 483, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 30, dependent conditional: 11, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 534, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 81, dependent conditional: 43, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 534, independent: 453, independent conditional: 3, independent unconditional: 450, dependent: 81, dependent conditional: 14, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 534, independent: 453, independent conditional: 3, independent unconditional: 450, dependent: 81, dependent conditional: 14, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 268, independent: 243, independent conditional: 3, independent unconditional: 240, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 268, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20443, independent: 85, independent conditional: 55, independent unconditional: 29, dependent: 20358, dependent conditional: 3105, dependent unconditional: 17253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 534, independent: 210, independent conditional: 0, independent unconditional: 210, dependent: 56, dependent conditional: 8, dependent unconditional: 48, unknown: 268, unknown conditional: 9, unknown unconditional: 259] , Statistics on independence cache: Total cache size (in pairs): 268, Positive cache size: 243, Positive conditional cache size: 3, Positive unconditional cache size: 240, Negative cache size: 25, Negative conditional cache size: 6, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 239, Maximal queried relation: 2, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 534, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 81, dependent conditional: 43, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 534, independent: 453, independent conditional: 3, independent unconditional: 450, dependent: 81, dependent conditional: 14, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 534, independent: 453, independent conditional: 3, independent unconditional: 450, dependent: 81, dependent conditional: 14, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 268, independent: 243, independent conditional: 3, independent unconditional: 240, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 268, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20443, independent: 85, independent conditional: 55, independent unconditional: 29, dependent: 20358, dependent conditional: 3105, dependent unconditional: 17253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 534, independent: 210, independent conditional: 0, independent unconditional: 210, dependent: 56, dependent conditional: 8, dependent unconditional: 48, unknown: 268, unknown conditional: 9, unknown unconditional: 259] , Statistics on independence cache: Total cache size (in pairs): 268, Positive cache size: 243, Positive conditional cache size: 3, Positive unconditional cache size: 240, Negative cache size: 25, Negative conditional cache size: 6, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 239 ], Independence queries for same thread: 8, Persistent sets #1 benchmarks: Persistent set computation time: 17.3s, Number of persistent set computation: 71, Number of trivial persistent sets: 33, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 259, independent: 240, independent conditional: 0, independent unconditional: 240, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 491, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 38, dependent conditional: 18, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 30, dependent conditional: 11, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 483, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 30, dependent conditional: 11, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 483, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 30, dependent conditional: 11, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 534, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 81, dependent conditional: 43, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 534, independent: 453, independent conditional: 3, independent unconditional: 450, dependent: 81, dependent conditional: 14, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 534, independent: 453, independent conditional: 3, independent unconditional: 450, dependent: 81, dependent conditional: 14, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 268, independent: 243, independent conditional: 3, independent unconditional: 240, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 268, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20443, independent: 85, independent conditional: 55, independent unconditional: 29, dependent: 20358, dependent conditional: 3105, dependent unconditional: 17253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 534, independent: 210, independent conditional: 0, independent unconditional: 210, dependent: 56, dependent conditional: 8, dependent unconditional: 48, unknown: 268, unknown conditional: 9, unknown unconditional: 259] , Statistics on independence cache: Total cache size (in pairs): 268, Positive cache size: 243, Positive conditional cache size: 3, Positive unconditional cache size: 240, Negative cache size: 25, Negative conditional cache size: 6, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 239, Maximal queried relation: 2, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 534, independent: 453, independent conditional: 213, independent unconditional: 240, dependent: 81, dependent conditional: 43, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 534, independent: 453, independent conditional: 3, independent unconditional: 450, dependent: 81, dependent conditional: 14, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 534, independent: 453, independent conditional: 3, independent unconditional: 450, dependent: 81, dependent conditional: 14, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 268, independent: 243, independent conditional: 3, independent unconditional: 240, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 268, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20443, independent: 85, independent conditional: 55, independent unconditional: 29, dependent: 20358, dependent conditional: 3105, dependent unconditional: 17253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 534, independent: 210, independent conditional: 0, independent unconditional: 210, dependent: 56, dependent conditional: 8, dependent unconditional: 48, unknown: 268, unknown conditional: 9, unknown unconditional: 259] , Statistics on independence cache: Total cache size (in pairs): 268, Positive cache size: 243, Positive conditional cache size: 3, Positive unconditional cache size: 240, Negative cache size: 25, Negative conditional cache size: 6, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 239 ], Independence queries for same thread: 8 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L709] 0 _Bool main$tmp_guard0; [L710] 0 _Bool main$tmp_guard1; [L712] 0 int x = 0; [L713] 0 _Bool x$flush_delayed; [L714] 0 int x$mem_tmp; [L715] 0 _Bool x$r_buff0_thd0; [L716] 0 _Bool x$r_buff0_thd1; [L717] 0 _Bool x$r_buff0_thd2; [L718] 0 _Bool x$r_buff1_thd0; [L719] 0 _Bool x$r_buff1_thd1; [L720] 0 _Bool x$r_buff1_thd2; [L721] 0 _Bool x$read_delayed; [L722] 0 int *x$read_delayed_var; [L723] 0 int x$w_buff0; [L724] 0 _Bool x$w_buff0_used; [L725] 0 int x$w_buff1; [L726] 0 _Bool x$w_buff1_used; [L728] 0 int y = 0; [L729] 0 _Bool weak$$choice0; [L730] 0 _Bool weak$$choice2; [L790] 0 pthread_t t2475; [L791] FCALL, FORK 0 pthread_create(&t2475, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, t2475=-2, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L792] 0 pthread_t t2476; [L793] FCALL, FORK 0 pthread_create(&t2476, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, t2475=-2, t2476=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L754] 2 x$w_buff1 = x$w_buff0 [L755] 2 x$w_buff0 = 2 [L756] 2 x$w_buff1_used = x$w_buff0_used [L757] 2 x$w_buff0_used = (_Bool)1 [L758] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L758] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L759] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L760] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L761] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L762] 2 x$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L765] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L734] 1 y = 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L737] 1 x = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L768] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L769] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L770] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L771] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L772] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L777] 2 return 0; [L740] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L741] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L742] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L743] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L744] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [\old(arg)={0:0}, __unbuffered_cnt=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L747] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L795] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2475=-2, t2476=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L797] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L797] RET 0 assume_abort_if_not(main$tmp_guard0) [L799] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L800] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L801] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L802] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L803] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2475=-2, t2476=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L806] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L807] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L808] 0 x$flush_delayed = weak$$choice2 [L809] 0 x$mem_tmp = x [L810] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L811] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L812] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L813] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L814] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L815] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L816] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] 0 main$tmp_guard1 = !(x == 2 && y == 2) [L818] 0 x = x$flush_delayed ? x$mem_tmp : x [L819] 0 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2475=-2, t2476=-1, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L821] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=2, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L18] 0 reach_error() VAL [\old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=2, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] - UnprovableResult [Line: 793]: 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: 791]: 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: P1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 47 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 68.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 67.6s, 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: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 0.1s, ConditionalCommutativityCheckTime: 0.1s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 1, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 47 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 24.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 20.6s, 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: 17, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 431 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: 1.3s, ConditionalCommutativityCheckTime: 1.3s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 7, ConditionalCommutativityTraceChecks: 2, ConditionalCommutativityImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2024-10-16 09:56:59,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2024-10-16 09:56:59,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-10-16 09:57:00,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...