/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-17da818-m [2024-05-05 12:27:08,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-05 12:27:08,971 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-05 12:27:08,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-05 12:27:08,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-05 12:27:09,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-05 12:27:09,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-05 12:27:09,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-05 12:27:09,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-05 12:27:09,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-05 12:27:09,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-05 12:27:09,014 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-05 12:27:09,014 INFO L153 SettingsManager]: * Use SBE=true [2024-05-05 12:27:09,015 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-05 12:27:09,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-05 12:27:09,016 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-05 12:27:09,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-05 12:27:09,016 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-05 12:27:09,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-05 12:27:09,016 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-05 12:27:09,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-05 12:27:09,017 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-05 12:27:09,017 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-05 12:27:09,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-05 12:27:09,017 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-05 12:27:09,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-05 12:27:09,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-05 12:27:09,018 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-05 12:27:09,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-05 12:27:09,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-05 12:27:09,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-05 12:27:09,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-05 12:27:09,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-05 12:27:09,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-05 12:27:09,020 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-05 12:27:09,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-05 12:27:09,020 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-05 12:27:09,020 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-05 12:27:09,020 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-05 12:27:09,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> IA Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: seed for random criterion -> 213 [2024-05-05 12:27:09,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-05 12:27:09,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-05 12:27:09,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-05 12:27:09,281 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-05 12:27:09,296 INFO L274 PluginConnector]: CDTParser initialized [2024-05-05 12:27:09,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2024-05-05 12:27:10,339 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-05 12:27:10,563 INFO L384 CDTParser]: Found 1 translation units. [2024-05-05 12:27:10,564 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2024-05-05 12:27:10,574 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/081139630/bb5d605e74f745579a7c02efed7e7b52/FLAG7dfb78996 [2024-05-05 12:27:10,586 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/081139630/bb5d605e74f745579a7c02efed7e7b52 [2024-05-05 12:27:10,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-05 12:27:10,589 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-05 12:27:10,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-05 12:27:10,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-05 12:27:10,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-05 12:27:10,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:10,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64744a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10, skipping insertion in model container [2024-05-05 12:27:10,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:10,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-05 12:27:10,888 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i[31163,31176] [2024-05-05 12:27:10,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-05 12:27:10,906 INFO L202 MainTranslator]: Completed pre-run [2024-05-05 12:27:10,956 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i[31163,31176] [2024-05-05 12:27:10,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-05 12:27:10,985 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2024-05-05 12:27:10,986 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2024-05-05 12:27:10,992 INFO L206 MainTranslator]: Completed translation [2024-05-05 12:27:10,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10 WrapperNode [2024-05-05 12:27:10,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-05 12:27:10,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-05 12:27:10,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-05 12:27:10,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-05 12:27:10,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,035 INFO L138 Inliner]: procedures = 173, calls = 24, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 77 [2024-05-05 12:27:11,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-05 12:27:11,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-05 12:27:11,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-05 12:27:11,036 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-05 12:27:11,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-05 12:27:11,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-05 12:27:11,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-05 12:27:11,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-05 12:27:11,076 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (1/1) ... [2024-05-05 12:27:11,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-05 12:27:11,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-05 12:27:11,111 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) [2024-05-05 12:27:11,116 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 [2024-05-05 12:27:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-05-05 12:27:11,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-05-05 12:27:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-05 12:27:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-05 12:27:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-05 12:27:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-05 12:27:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-05 12:27:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-05 12:27:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-05 12:27:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-05 12:27:11,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-05 12:27:11,168 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-05 12:27:11,307 INFO L241 CfgBuilder]: Building ICFG [2024-05-05 12:27:11,308 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-05 12:27:11,413 INFO L282 CfgBuilder]: Performing block encoding [2024-05-05 12:27:11,457 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-05 12:27:11,457 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2024-05-05 12:27:11,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.05 12:27:11 BoogieIcfgContainer [2024-05-05 12:27:11,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-05 12:27:11,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-05 12:27:11,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-05 12:27:11,463 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-05 12:27:11,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.05 12:27:10" (1/3) ... [2024-05-05 12:27:11,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f02eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.05 12:27:11, skipping insertion in model container [2024-05-05 12:27:11,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.05 12:27:10" (2/3) ... [2024-05-05 12:27:11,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f02eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.05 12:27:11, skipping insertion in model container [2024-05-05 12:27:11,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.05 12:27:11" (3/3) ... [2024-05-05 12:27:11,465 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2024-05-05 12:27:11,471 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-05 12:27:11,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-05 12:27:11,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-05 12:27:11,481 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-05 12:27:11,513 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-05 12:27:11,542 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-05 12:27:11,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-05 12:27:11,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-05 12:27:11,545 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) [2024-05-05 12:27:11,557 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 [2024-05-05 12:27:11,581 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-05 12:27:11,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:11,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-05 12:27:11,661 INFO L357 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, mHoare=true, 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;@6fc0bef6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-05-05 12:27:11,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-05-05 12:27:11,711 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-05 12:27:11,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:11,715 INFO L85 PathProgramCache]: Analyzing trace with hash 468070102, now seen corresponding path program 1 times [2024-05-05 12:27:11,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:11,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863490706] [2024-05-05 12:27:11,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:11,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:11,932 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:11,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:11,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863490706] [2024-05-05 12:27:11,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863490706] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:11,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 12:27:11,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-05 12:27:11,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950428402] [2024-05-05 12:27:11,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:11,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-05 12:27:11,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:11,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-05 12:27:11,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-05 12:27:11,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:11,977 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:11,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2024-05-05 12:27:11,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-05 12:27:12,006 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-05 12:27:12,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:12,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1001234715, now seen corresponding path program 1 times [2024-05-05 12:27:12,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:12,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895706397] [2024-05-05 12:27:12,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:12,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:12,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:12,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:12,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895706397] [2024-05-05 12:27:12,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895706397] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:12,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 12:27:12,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-05 12:27:12,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179176882] [2024-05-05 12:27:12,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:12,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-05 12:27:12,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:12,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-05 12:27:12,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-05 12:27:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,281 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:12,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-05-05 12:27:12,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:12,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-05 12:27:12,348 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-05 12:27:12,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:12,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1748954718, now seen corresponding path program 1 times [2024-05-05 12:27:12,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:12,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423885674] [2024-05-05 12:27:12,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:12,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:12,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:12,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:12,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423885674] [2024-05-05 12:27:12,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423885674] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:12,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 12:27:12,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-05 12:27:12,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606083128] [2024-05-05 12:27:12,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:12,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-05 12:27:12,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:12,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-05 12:27:12,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-05 12:27:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,460 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:12,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-05-05 12:27:12,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:12,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:12,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-05 12:27:12,470 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-05 12:27:12,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:12,470 INFO L85 PathProgramCache]: Analyzing trace with hash 170417788, now seen corresponding path program 1 times [2024-05-05 12:27:12,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:12,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192732125] [2024-05-05 12:27:12,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:12,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-05 12:27:12,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-05 12:27:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-05 12:27:12,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-05 12:27:12,510 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-05 12:27:12,510 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2024-05-05 12:27:12,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-05-05 12:27:12,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-05-05 12:27:12,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-05 12:27:12,519 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-05 12:27:12,521 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-05 12:27:12,521 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-05-05 12:27:12,540 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-05 12:27:12,542 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-05 12:27:12,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-05 12:27:12,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-05 12:27:12,588 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) [2024-05-05 12:27:12,590 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 [2024-05-05 12:27:12,595 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-05 12:27:12,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:12,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-05 12:27:12,596 INFO L357 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, mHoare=true, 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;@6fc0bef6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-05-05 12:27:12,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-05-05 12:27:12,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-05 12:27:12,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:12,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1952741911, now seen corresponding path program 1 times [2024-05-05 12:27:12,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:12,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109767159] [2024-05-05 12:27:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:12,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:12,662 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-05-05 12:27:12,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:12,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109767159] [2024-05-05 12:27:12,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109767159] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:12,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 12:27:12,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-05 12:27:12,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800551120] [2024-05-05 12:27:12,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:12,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-05 12:27:12,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:12,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-05 12:27:12,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-05 12:27:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,668 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:12,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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) [2024-05-05 12:27:12,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-05 12:27:12,679 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-05 12:27:12,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:12,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1344819005, now seen corresponding path program 1 times [2024-05-05 12:27:12,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:12,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431185190] [2024-05-05 12:27:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:12,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:12,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:12,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431185190] [2024-05-05 12:27:12,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431185190] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:12,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 12:27:12,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-05 12:27:12,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416427830] [2024-05-05 12:27:12,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:12,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-05 12:27:12,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:12,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-05 12:27:12,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-05 12:27:12,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,797 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:12,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-05-05 12:27:12,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:12,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-05 12:27:12,855 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-05 12:27:12,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:12,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1220972608, now seen corresponding path program 1 times [2024-05-05 12:27:12,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:12,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832493802] [2024-05-05 12:27:12,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:12,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:12,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:12,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832493802] [2024-05-05 12:27:12,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832493802] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:12,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 12:27:12,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-05 12:27:12,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847226193] [2024-05-05 12:27:12,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:12,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-05 12:27:12,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:12,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-05 12:27:12,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-05 12:27:12,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,923 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:12,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-05-05 12:27:12,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:12,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:12,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:13,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:13,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-05 12:27:13,013 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-05 12:27:13,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:13,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1060137179, now seen corresponding path program 1 times [2024-05-05 12:27:13,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:13,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735556723] [2024-05-05 12:27:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:13,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:13,182 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:13,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:13,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735556723] [2024-05-05 12:27:13,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735556723] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-05 12:27:13,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288429865] [2024-05-05 12:27:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:13,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-05 12:27:13,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-05 12:27:13,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-05 12:27:13,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-05 12:27:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:13,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-05 12:27:13,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-05 12:27:13,291 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-05 12:27:13,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-05 12:27:13,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288429865] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:13,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-05 12:27:13,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-05-05 12:27:13,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344616460] [2024-05-05 12:27:13,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:13,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-05 12:27:13,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:13,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-05 12:27:13,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-05-05 12:27:13,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:13,296 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:13,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-05-05 12:27:13,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:13,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:13,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:13,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:13,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:13,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:13,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:13,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:13,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-05-05 12:27:13,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-05 12:27:13,545 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-05 12:27:13,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:13,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1677848697, now seen corresponding path program 1 times [2024-05-05 12:27:13,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:13,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860179475] [2024-05-05 12:27:13,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:13,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:13,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:13,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860179475] [2024-05-05 12:27:13,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860179475] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-05 12:27:13,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756303191] [2024-05-05 12:27:13,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:13,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-05 12:27:13,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-05 12:27:13,657 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-05 12:27:13,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-05 12:27:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:13,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 12 conjunts are in the unsatisfiable core [2024-05-05 12:27:13,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-05 12:27:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:13,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-05 12:27:13,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:13,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756303191] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-05 12:27:13,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-05 12:27:13,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-05-05 12:27:13,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566740699] [2024-05-05 12:27:13,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-05 12:27:13,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-05-05 12:27:13,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:13,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-05-05 12:27:13,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-05-05 12:27:13,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:13,903 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:13,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 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) [2024-05-05 12:27:13,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:13,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:13,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:13,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:13,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-05 12:27:13,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-05-05 12:27:14,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-05 12:27:14,193 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-05 12:27:14,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:14,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1283200471, now seen corresponding path program 1 times [2024-05-05 12:27:14,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:14,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040736940] [2024-05-05 12:27:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:14,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-05 12:27:14,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-05 12:27:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-05 12:27:14,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-05 12:27:14,225 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-05 12:27:14,225 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-05-05 12:27:14,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-05-05 12:27:14,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-05-05 12:27:14,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-05-05 12:27:14,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-05-05 12:27:14,227 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-05-05 12:27:14,227 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-05 12:27:14,227 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-05-05 12:27:14,240 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-05 12:27:14,242 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-05 12:27:14,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-05 12:27:14,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-05 12:27:14,243 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-05 12:27:14,247 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-05 12:27:14,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:14,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-05 12:27:14,248 INFO L357 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, mHoare=true, 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;@6fc0bef6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-05-05 12:27:14,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-05-05 12:27:14,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-05-05 12:27:14,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-05 12:27:14,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:14,258 INFO L85 PathProgramCache]: Analyzing trace with hash -555611499, now seen corresponding path program 1 times [2024-05-05 12:27:14,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:14,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823194717] [2024-05-05 12:27:14,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:14,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:14,277 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-05-05 12:27:14,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:14,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823194717] [2024-05-05 12:27:14,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823194717] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:14,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 12:27:14,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-05 12:27:14,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055594574] [2024-05-05 12:27:14,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:14,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-05 12:27:14,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:14,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-05 12:27:14,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-05 12:27:14,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,280 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:14,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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) [2024-05-05 12:27:14,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-05-05 12:27:14,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-05 12:27:14,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:14,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1321399816, now seen corresponding path program 1 times [2024-05-05 12:27:14,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:14,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035827087] [2024-05-05 12:27:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:14,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:14,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:14,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:14,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035827087] [2024-05-05 12:27:14,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035827087] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:14,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 12:27:14,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-05 12:27:14,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862360577] [2024-05-05 12:27:14,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:14,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-05 12:27:14,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:14,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-05 12:27:14,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-05 12:27:14,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,335 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:14,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-05-05 12:27:14,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:14,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-05-05 12:27:14,381 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-05 12:27:14,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:14,381 INFO L85 PathProgramCache]: Analyzing trace with hash -189965419, now seen corresponding path program 1 times [2024-05-05 12:27:14,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:14,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700970585] [2024-05-05 12:27:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:14,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:14,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:14,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700970585] [2024-05-05 12:27:14,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700970585] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:14,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-05 12:27:14,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-05 12:27:14,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964648543] [2024-05-05 12:27:14,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:14,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-05 12:27:14,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:14,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-05 12:27:14,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-05 12:27:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,414 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:14,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-05-05 12:27:14,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:14,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:14,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:14,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-05-05 12:27:14,475 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-05 12:27:14,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:14,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1280460677, now seen corresponding path program 1 times [2024-05-05 12:27:14,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:14,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820848758] [2024-05-05 12:27:14,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:14,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:14,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:14,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:14,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820848758] [2024-05-05 12:27:14,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820848758] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-05 12:27:14,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558925461] [2024-05-05 12:27:14,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:14,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-05 12:27:14,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-05 12:27:14,579 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-05 12:27:14,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-05 12:27:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:14,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-05 12:27:14,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-05 12:27:14,702 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-05 12:27:14,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-05 12:27:14,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558925461] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-05 12:27:14,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-05 12:27:14,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-05-05 12:27:14,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950317909] [2024-05-05 12:27:14,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-05 12:27:14,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-05 12:27:14,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:14,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-05 12:27:14,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-05-05 12:27:14,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,708 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:14,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-05-05 12:27:14,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:14,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:14,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:14,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:14,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:14,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:14,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-05-05 12:27:14,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-05-05 12:27:14,936 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-05 12:27:14,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:14,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1625851577, now seen corresponding path program 1 times [2024-05-05 12:27:14,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:14,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728094509] [2024-05-05 12:27:14,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:14,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:15,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-05 12:27:15,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728094509] [2024-05-05 12:27:15,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728094509] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-05 12:27:15,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882812688] [2024-05-05 12:27:15,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:15,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-05 12:27:15,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-05 12:27:15,030 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-05 12:27:15,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-05-05 12:27:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-05 12:27:15,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 12 conjunts are in the unsatisfiable core [2024-05-05 12:27:15,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-05 12:27:15,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:15,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-05 12:27:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-05 12:27:15,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882812688] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-05 12:27:15,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-05 12:27:15,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-05-05 12:27:15,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37536554] [2024-05-05 12:27:15,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-05 12:27:15,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-05-05 12:27:15,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-05 12:27:15,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-05-05 12:27:15,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-05-05 12:27:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:15,244 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-05 12:27:15,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 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) [2024-05-05 12:27:15,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:15,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:15,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:15,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:15,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:15,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-05 12:27:15,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-05 12:27:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-05 12:27:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-05-05 12:27:15,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-05-05 12:27:15,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-05-05 12:27:15,613 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-05 12:27:15,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-05 12:27:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1358858680, now seen corresponding path program 1 times [2024-05-05 12:27:15,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-05 12:27:15,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520240532] [2024-05-05 12:27:15,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-05 12:27:15,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-05 12:27:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-05 12:27:15,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-05 12:27:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-05 12:27:15,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-05 12:27:15,656 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-05 12:27:15,656 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-05-05 12:27:15,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-05-05 12:27:15,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-05-05 12:27:15,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-05-05 12:27:15,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-05-05 12:27:15,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-05-05 12:27:15,658 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-05-05 12:27:15,662 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2024-05-05 12:27:15,662 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2024-05-05 12:27:15,703 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2024-05-05 12:27:15,704 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2024-05-05 12:27:15,705 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2024-05-05 12:27:15,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.05 12:27:15 BasicIcfg [2024-05-05 12:27:15,716 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-05 12:27:15,716 INFO L158 Benchmark]: Toolchain (without parser) took 5127.29ms. Allocated memory was 175.1MB in the beginning and 298.8MB in the end (delta: 123.7MB). Free memory was 103.1MB in the beginning and 118.0MB in the end (delta: -14.8MB). Peak memory consumption was 109.6MB. Max. memory is 8.0GB. [2024-05-05 12:27:15,716 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-05 12:27:15,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.57ms. Allocated memory was 175.1MB in the beginning and 298.8MB in the end (delta: 123.7MB). Free memory was 102.9MB in the beginning and 259.6MB in the end (delta: -156.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-05-05 12:27:15,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.18ms. Allocated memory is still 298.8MB. Free memory was 259.6MB in the beginning and 257.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-05 12:27:15,717 INFO L158 Benchmark]: Boogie Preprocessor took 38.54ms. Allocated memory is still 298.8MB. Free memory was 257.5MB in the beginning and 255.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-05 12:27:15,717 INFO L158 Benchmark]: RCFGBuilder took 383.27ms. Allocated memory is still 298.8MB. Free memory was 255.9MB in the beginning and 238.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-05-05 12:27:15,717 INFO L158 Benchmark]: TraceAbstraction took 4255.31ms. Allocated memory is still 298.8MB. Free memory was 237.6MB in the beginning and 118.0MB in the end (delta: 119.6MB). Peak memory consumption was 120.2MB. Max. memory is 8.0GB. [2024-05-05 12:27:15,718 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 400.57ms. Allocated memory was 175.1MB in the beginning and 298.8MB in the end (delta: 123.7MB). Free memory was 102.9MB in the beginning and 259.6MB in the end (delta: -156.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.18ms. Allocated memory is still 298.8MB. Free memory was 259.6MB in the beginning and 257.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.54ms. Allocated memory is still 298.8MB. Free memory was 257.5MB in the beginning and 255.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 383.27ms. Allocated memory is still 298.8MB. Free memory was 255.9MB in the beginning and 238.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 4255.31ms. Allocated memory is still 298.8MB. Free memory was 237.6MB in the beginning and 118.0MB in the end (delta: 119.6MB). Peak memory consumption was 120.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 118, independent: 109, independent conditional: 94, independent unconditional: 15, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 109, independent: 109, independent conditional: 94, independent unconditional: 15, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 109, independent: 109, independent conditional: 94, independent unconditional: 15, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 109, independent: 109, independent conditional: 94, independent unconditional: 15, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 109, independent: 109, independent conditional: 29, independent unconditional: 80, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 109, independent: 109, independent conditional: 17, independent unconditional: 92, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 109, independent: 109, independent conditional: 17, independent unconditional: 92, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 45, independent: 45, independent conditional: 4, independent unconditional: 41, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 45, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 109, independent: 64, independent conditional: 13, independent unconditional: 51, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 45, unknown conditional: 4, unknown unconditional: 41] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 45, Positive conditional cache size: 4, Positive unconditional cache size: 41, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 12, Maximal queried relation: 0, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 109, independent: 109, independent conditional: 29, independent unconditional: 80, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 109, independent: 109, independent conditional: 17, independent unconditional: 92, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 109, independent: 109, independent conditional: 17, independent unconditional: 92, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 45, independent: 45, independent conditional: 4, independent unconditional: 41, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 45, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 109, independent: 64, independent conditional: 13, independent unconditional: 51, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 45, unknown conditional: 4, unknown unconditional: 41] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 45, Positive conditional cache size: 4, Positive unconditional cache size: 41, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 12 ], Independence queries for same thread: 9 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 410, independent: 387, independent conditional: 366, independent unconditional: 21, dependent: 23, dependent conditional: 23, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 390, independent: 387, independent conditional: 366, independent unconditional: 21, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 390, independent: 387, independent conditional: 366, independent unconditional: 21, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 390, independent: 387, independent conditional: 366, independent unconditional: 21, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 399, independent: 387, independent conditional: 114, independent unconditional: 273, dependent: 12, dependent conditional: 6, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 399, independent: 387, independent conditional: 76, independent unconditional: 311, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 399, independent: 387, independent conditional: 76, independent unconditional: 311, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 105, independent: 101, independent conditional: 12, independent unconditional: 89, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 105, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 38, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 399, independent: 286, independent conditional: 64, independent unconditional: 222, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 105, unknown conditional: 14, unknown unconditional: 91] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 101, Positive conditional cache size: 12, Positive unconditional cache size: 89, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 41, Maximal queried relation: 3, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 399, independent: 387, independent conditional: 114, independent unconditional: 273, dependent: 12, dependent conditional: 6, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 399, independent: 387, independent conditional: 76, independent unconditional: 311, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 399, independent: 387, independent conditional: 76, independent unconditional: 311, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 105, independent: 101, independent conditional: 12, independent unconditional: 89, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 105, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 38, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 399, independent: 286, independent conditional: 64, independent unconditional: 222, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 105, unknown conditional: 14, unknown unconditional: 91] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 101, Positive conditional cache size: 12, Positive unconditional cache size: 89, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 41 ], Independence queries for same thread: 20 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 543, independent: 510, independent conditional: 489, independent unconditional: 21, dependent: 33, dependent conditional: 33, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 517, independent: 510, independent conditional: 489, independent unconditional: 21, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 517, independent: 510, independent conditional: 489, independent unconditional: 21, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 517, independent: 510, independent conditional: 489, independent unconditional: 21, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 542, independent: 510, independent conditional: 131, independent unconditional: 379, dependent: 32, dependent conditional: 18, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 542, independent: 510, independent conditional: 93, independent unconditional: 417, dependent: 32, dependent conditional: 6, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 542, independent: 510, independent conditional: 93, independent unconditional: 417, dependent: 32, dependent conditional: 6, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 152, independent: 141, independent conditional: 7, independent unconditional: 134, dependent: 11, dependent conditional: 5, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 152, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 5, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 5, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 41, dependent conditional: 5, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 542, independent: 369, independent conditional: 86, independent unconditional: 283, dependent: 21, dependent conditional: 1, dependent unconditional: 20, unknown: 152, unknown conditional: 12, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 152, Positive cache size: 141, Positive conditional cache size: 7, Positive unconditional cache size: 134, Negative cache size: 11, Negative conditional cache size: 5, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 50, Maximal queried relation: 4, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 542, independent: 510, independent conditional: 131, independent unconditional: 379, dependent: 32, dependent conditional: 18, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 542, independent: 510, independent conditional: 93, independent unconditional: 417, dependent: 32, dependent conditional: 6, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 542, independent: 510, independent conditional: 93, independent unconditional: 417, dependent: 32, dependent conditional: 6, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 152, independent: 141, independent conditional: 7, independent unconditional: 134, dependent: 11, dependent conditional: 5, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 152, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 5, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 5, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 41, dependent conditional: 5, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 542, independent: 369, independent conditional: 86, independent unconditional: 283, dependent: 21, dependent conditional: 1, dependent unconditional: 20, unknown: 152, unknown conditional: 12, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 152, Positive cache size: 141, Positive conditional cache size: 7, Positive unconditional cache size: 134, Negative cache size: 11, Negative conditional cache size: 5, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 50 ], Independence queries for same thread: 26 - CounterExampleResult [Line: 728]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L704] 0 volatile unsigned int count = 0; VAL [count=0] [L705] 0 _Bool MTX = 0; VAL [MTX=0, count=0] [L706] 0 _Bool COND = 0; VAL [COND=0, MTX=0, count=0] [L732] 0 pthread_t t; VAL [COND=0, MTX=0, count=0, t={3:0}] [L733] COND TRUE 0 1 VAL [COND=0, MTX=0, count=0, t={3:0}] [L733] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [COND=0, MTX=0, count=0, t={3:0}] [L727] CALL 1 Barrier2() [L718] CALL 1 __VERIFIER_atomic_acquire() [L709] CALL 1 assume_abort_if_not(MTX==0) [L3] COND FALSE 1 !(!cond) [L709] RET 1 assume_abort_if_not(MTX==0) [L710] 1 MTX = 1 [L718] RET 1 __VERIFIER_atomic_acquire() [L719] 1 count++ VAL [COND=0, MTX=1, count=1] [L720] COND FALSE 1 !(count == 3) VAL [COND=0, MTX=1, count=1] [L724] CALL 1 __VERIFIER_atomic_release() [L714] CALL 1 assume_abort_if_not(MTX==1) [L3] COND FALSE 1 !(!cond) [L714] RET 1 assume_abort_if_not(MTX==1) [L715] 1 MTX = 0 [L724] RET 1 __VERIFIER_atomic_release() [L733] COND TRUE 0 1 VAL [COND=0, MTX=0, count=1, t={3:0}] [L733] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [COND=0, MTX=0, count=1, t={3:0}] [L727] CALL 2 Barrier2() [L718] CALL 2 __VERIFIER_atomic_acquire() [L709] CALL 2 assume_abort_if_not(MTX==0) [L3] COND FALSE 2 !(!cond) [L709] RET 2 assume_abort_if_not(MTX==0) [L710] 2 MTX = 1 [L718] RET 2 __VERIFIER_atomic_acquire() [L719] 2 count++ VAL [COND=0, MTX=1, count=2] [L720] COND FALSE 2 !(count == 3) VAL [COND=0, MTX=1, count=2] [L724] CALL 2 __VERIFIER_atomic_release() [L714] CALL 2 assume_abort_if_not(MTX==1) [L3] COND FALSE 2 !(!cond) [L714] RET 2 assume_abort_if_not(MTX==1) [L715] 2 MTX = 0 [L724] RET 2 __VERIFIER_atomic_release() [L733] COND TRUE 0 1 VAL [COND=0, MTX=0, count=2, t={3:0}] [L733] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [COND=0, MTX=0, count=2, t={3:0}] [L727] CALL 3 Barrier2() [L718] CALL 3 __VERIFIER_atomic_acquire() [L709] CALL 3 assume_abort_if_not(MTX==0) [L3] COND FALSE 3 !(!cond) [L709] RET 3 assume_abort_if_not(MTX==0) [L710] 3 MTX = 1 [L718] RET 3 __VERIFIER_atomic_acquire() [L719] 3 count++ VAL [COND=0, MTX=1, count=3] [L720] COND TRUE 3 count == 3 VAL [COND=0, MTX=1, count=3] [L721] 3 COND = 1 VAL [COND=1, MTX=1, count=3] [L724] CALL 1 assume_abort_if_not(COND) [L3] COND FALSE 1 !(!cond) [L724] RET 1 assume_abort_if_not(COND) [L724] 1 COND = 0 VAL [COND=0, MTX=1, count=3] [L722] 3 count = 0 VAL [COND=0, MTX=1, count=0] [L725] CALL 3 __VERIFIER_atomic_release() [L714] CALL 3 assume_abort_if_not(MTX==1) [L3] COND FALSE 3 !(!cond) [L714] RET 3 assume_abort_if_not(MTX==1) [L715] 3 MTX = 0 [L725] RET 3 __VERIFIER_atomic_release() [L724] CALL 1 __VERIFIER_atomic_acquire() [L709] CALL 1 assume_abort_if_not(MTX==0) [L3] COND FALSE 1 !(!cond) [L709] RET 1 assume_abort_if_not(MTX==0) [L710] 1 MTX = 1 [L724] RET 1 __VERIFIER_atomic_acquire() [L725] CALL 1 __VERIFIER_atomic_release() [L714] CALL 1 assume_abort_if_not(MTX==1) [L3] COND FALSE 1 !(!cond) [L714] RET 1 assume_abort_if_not(MTX==1) [L715] 1 MTX = 0 [L725] RET 1 __VERIFIER_atomic_release() [L727] RET 1 Barrier2() [L728] 1 reach_error() VAL [COND=0, MTX=0, arg={0:0}, arg={0:0}, count=0] - UnprovableResult [Line: 733]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 68 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, 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: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 5/5 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, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 89 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, 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: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 347 ConstructedInterpolants, 0 QuantifiedInterpolants, 889 SizeOfPredicates, 4 NumberOfNonLiveVariables, 241 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 22/42 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, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 110 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, 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: 25, 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, 0.4s InterpolantComputationTime, 391 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 368 ConstructedInterpolants, 0 QuantifiedInterpolants, 910 SizeOfPredicates, 4 NumberOfNonLiveVariables, 241 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 41/61 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, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2024-05-05 12:27:15,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Forceful destruction successful, exit code 0 [2024-05-05 12:27:15,944 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 [2024-05-05 12:27:16,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-05-05 12:27:16,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...