/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 DFS --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 10 -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/25_stack_longest-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-17da818-m [2024-05-07 07:30:22,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-07 07:30:22,587 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-07 07:30:22,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-07 07:30:22,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-07 07:30:22,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-07 07:30:22,630 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-07 07:30:22,630 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-07 07:30:22,631 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-07 07:30:22,634 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-07 07:30:22,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-07 07:30:22,634 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-07 07:30:22,634 INFO L153 SettingsManager]: * Use SBE=true [2024-05-07 07:30:22,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-07 07:30:22,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-07 07:30:22,636 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-07 07:30:22,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-07 07:30:22,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-07 07:30:22,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-07 07:30:22,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-07 07:30:22,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-07 07:30:22,637 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-07 07:30:22,637 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-07 07:30:22,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-07 07:30:22,638 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-07 07:30:22,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-07 07:30:22,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-07 07:30:22,639 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-07 07:30:22,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-07 07:30:22,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-07 07:30:22,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-07 07:30:22,640 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-07 07:30:22,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-07 07:30:22,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-07 07:30:22,640 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-07 07:30:22,640 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-07 07:30:22,641 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-07 07:30:22,641 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-07 07:30:22,641 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-07 07:30:22,641 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: seed for random criterion -> 213 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: use limited checks (recommended for DFS) -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Limit for limited checks -> 10 [2024-05-07 07:30:22,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-07 07:30:22,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-07 07:30:22,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-07 07:30:22,830 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-07 07:30:22,830 INFO L274 PluginConnector]: CDTParser initialized [2024-05-07 07:30:22,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/25_stack_longest-2.i [2024-05-07 07:30:23,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-07 07:30:24,044 INFO L384 CDTParser]: Found 1 translation units. [2024-05-07 07:30:24,049 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longest-2.i [2024-05-07 07:30:24,060 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0883c939b/05274fc523df46a9aee3f1a73c1cfcd0/FLAGfe8f60f6d [2024-05-07 07:30:24,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0883c939b/05274fc523df46a9aee3f1a73c1cfcd0 [2024-05-07 07:30:24,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-07 07:30:24,074 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-07 07:30:24,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-07 07:30:24,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-07 07:30:24,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-07 07:30:24,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69897864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24, skipping insertion in model container [2024-05-07 07:30:24,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,113 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-07 07:30:24,382 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/25_stack_longest-2.i[31043,31056] [2024-05-07 07:30:24,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-07 07:30:24,444 INFO L202 MainTranslator]: Completed pre-run [2024-05-07 07:30:24,492 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/25_stack_longest-2.i[31043,31056] [2024-05-07 07:30:24,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-07 07:30:24,539 INFO L206 MainTranslator]: Completed translation [2024-05-07 07:30:24,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24 WrapperNode [2024-05-07 07:30:24,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-07 07:30:24,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-07 07:30:24,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-07 07:30:24,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-07 07:30:24,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,599 INFO L138 Inliner]: procedures = 177, calls = 34, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 172 [2024-05-07 07:30:24,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-07 07:30:24,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-07 07:30:24,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-07 07:30:24,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-07 07:30:24,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-07 07:30:24,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-07 07:30:24,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-07 07:30:24,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-07 07:30:24,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (1/1) ... [2024-05-07 07:30:24,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-07 07:30:24,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 07:30:24,672 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) [2024-05-07 07:30:24,714 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 [2024-05-07 07:30:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-07 07:30:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-05-07 07:30:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-05-07 07:30:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-07 07:30:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-07 07:30:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-07 07:30:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-07 07:30:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-07 07:30:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-07 07:30:24,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-07 07:30:24,747 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-07 07:30:24,841 INFO L241 CfgBuilder]: Building ICFG [2024-05-07 07:30:24,843 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-07 07:30:25,081 INFO L282 CfgBuilder]: Performing block encoding [2024-05-07 07:30:25,216 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-07 07:30:25,216 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2024-05-07 07:30:25,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 07:30:25 BoogieIcfgContainer [2024-05-07 07:30:25,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-07 07:30:25,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-07 07:30:25,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-07 07:30:25,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-07 07:30:25,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.05 07:30:24" (1/3) ... [2024-05-07 07:30:25,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac6f50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 07:30:25, skipping insertion in model container [2024-05-07 07:30:25,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 07:30:24" (2/3) ... [2024-05-07 07:30:25,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac6f50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 07:30:25, skipping insertion in model container [2024-05-07 07:30:25,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 07:30:25" (3/3) ... [2024-05-07 07:30:25,225 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack_longest-2.i [2024-05-07 07:30:25,232 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-07 07:30:25,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-07 07:30:25,240 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-07 07:30:25,240 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-07 07:30:25,281 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-07 07:30:25,312 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-07 07:30:25,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-07 07:30:25,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 07:30:25,316 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) [2024-05-07 07:30:25,317 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 [2024-05-07 07:30:25,341 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-07 07:30:25,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 07:30:25,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-07 07:30:25,357 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;@6ba1a6d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=10, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-05-07 07:30:25,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-05-07 07:30:25,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-07 07:30:25,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 07:30:25,431 INFO L85 PathProgramCache]: Analyzing trace with hash -546027634, now seen corresponding path program 1 times [2024-05-07 07:30:25,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 07:30:25,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165122572] [2024-05-07 07:30:25,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 07:30:25,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 07:30:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 07:30:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-07 07:30:25,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 07:30:25,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165122572] [2024-05-07 07:30:25,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165122572] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-07 07:30:25,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-07 07:30:25,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-07 07:30:25,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305589552] [2024-05-07 07:30:25,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-07 07:30:25,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-07 07:30:25,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 07:30:25,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-07 07:30:25,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-07 07:30:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 07:30:25,707 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 07:30:25,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-05-07 07:30:25,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 07:30:25,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-07 07:30:25,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-07 07:30:25,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-07 07:30:25,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 07:30:25,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1492565868, now seen corresponding path program 1 times [2024-05-07 07:30:25,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 07:30:25,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952734570] [2024-05-07 07:30:25,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 07:30:25,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 07:30:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 07:30:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-07 07:30:25,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 07:30:25,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952734570] [2024-05-07 07:30:25,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952734570] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-07 07:30:25,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-07 07:30:25,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-07 07:30:25,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644599150] [2024-05-07 07:30:25,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-07 07:30:25,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-07 07:30:25,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 07:30:25,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-07 07:30:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-05-07 07:30:25,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 07:30:25,921 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 07:30:25,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-05-07 07:30:25,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-07 07:30:25,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 07:30:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-07 07:30:26,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-05-07 07:30:26,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-07 07:30:26,078 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-07 07:30:26,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 07:30:26,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1308215994, now seen corresponding path program 1 times [2024-05-07 07:30:26,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 07:30:26,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649533142] [2024-05-07 07:30:26,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 07:30:26,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 07:30:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-07 07:30:26,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-07 07:30:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-07 07:30:26,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-07 07:30:26,197 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-07 07:30:26,199 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-05-07 07:30:26,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-05-07 07:30:26,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-05-07 07:30:26,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-07 07:30:26,209 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-05-07 07:30:26,213 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-07 07:30:26,213 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2024-05-07 07:30:26,272 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2024-05-07 07:30:26,274 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch10 could not be translated [2024-05-07 07:30:26,274 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch10 could not be translated [2024-05-07 07:30:26,274 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2024-05-07 07:30:26,275 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2024-05-07 07:30:26,276 WARN L1576 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2024-05-07 07:30:26,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 07:30:26 BasicIcfg [2024-05-07 07:30:26,290 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-07 07:30:26,290 INFO L158 Benchmark]: Toolchain (without parser) took 2216.35ms. Allocated memory was 184.5MB in the beginning and 271.6MB in the end (delta: 87.0MB). Free memory was 144.3MB in the beginning and 147.2MB in the end (delta: -2.9MB). Peak memory consumption was 84.0MB. Max. memory is 8.0GB. [2024-05-07 07:30:26,291 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 184.5MB. Free memory was 150.7MB in the beginning and 150.6MB in the end (delta: 104.8kB). There was no memory consumed. Max. memory is 8.0GB. [2024-05-07 07:30:26,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.55ms. Allocated memory was 184.5MB in the beginning and 271.6MB in the end (delta: 87.0MB). Free memory was 144.3MB in the beginning and 235.1MB in the end (delta: -90.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-05-07 07:30:26,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.21ms. Allocated memory is still 271.6MB. Free memory was 234.7MB in the beginning and 232.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-07 07:30:26,291 INFO L158 Benchmark]: Boogie Preprocessor took 34.92ms. Allocated memory is still 271.6MB. Free memory was 232.6MB in the beginning and 230.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-07 07:30:26,292 INFO L158 Benchmark]: RCFGBuilder took 582.72ms. Allocated memory is still 271.6MB. Free memory was 230.5MB in the beginning and 191.7MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2024-05-07 07:30:26,292 INFO L158 Benchmark]: TraceAbstraction took 1070.39ms. Allocated memory is still 271.6MB. Free memory was 190.5MB in the beginning and 147.2MB in the end (delta: 43.2MB). Peak memory consumption was 44.8MB. Max. memory is 8.0GB. [2024-05-07 07:30:26,293 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 184.5MB. Free memory was 150.7MB in the beginning and 150.6MB in the end (delta: 104.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 464.55ms. Allocated memory was 184.5MB in the beginning and 271.6MB in the end (delta: 87.0MB). Free memory was 144.3MB in the beginning and 235.1MB in the end (delta: -90.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.21ms. Allocated memory is still 271.6MB. Free memory was 234.7MB in the beginning and 232.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.92ms. Allocated memory is still 271.6MB. Free memory was 232.6MB in the beginning and 230.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 582.72ms. Allocated memory is still 271.6MB. Free memory was 230.5MB in the beginning and 191.7MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * TraceAbstraction took 1070.39ms. Allocated memory is still 271.6MB. Free memory was 190.5MB in the beginning and 147.2MB in the end (delta: 43.2MB). Peak memory consumption was 44.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 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: 582, independent: 471, independent conditional: 328, independent unconditional: 143, dependent: 111, dependent conditional: 111, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 471, independent: 471, independent conditional: 328, independent unconditional: 143, 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: 471, independent: 471, independent conditional: 328, independent unconditional: 143, 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: 471, independent: 471, independent conditional: 328, independent unconditional: 143, 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: 471, independent: 471, independent conditional: 89, independent unconditional: 382, 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: 471, independent: 471, independent conditional: 14, independent unconditional: 457, 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: 471, independent: 471, independent conditional: 14, independent unconditional: 457, 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: 166, independent: 166, independent conditional: 5, independent unconditional: 161, 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: 166, independent: 166, independent conditional: 0, independent unconditional: 166, 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: 471, independent: 305, independent conditional: 9, independent unconditional: 296, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 166, unknown conditional: 5, unknown unconditional: 161] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 166, Positive conditional cache size: 5, Positive unconditional cache size: 161, 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: 75, Maximal queried relation: 0, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 471, independent: 471, independent conditional: 89, independent unconditional: 382, 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: 471, independent: 471, independent conditional: 14, independent unconditional: 457, 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: 471, independent: 471, independent conditional: 14, independent unconditional: 457, 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: 166, independent: 166, independent conditional: 5, independent unconditional: 161, 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: 166, independent: 166, independent conditional: 0, independent unconditional: 166, 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: 471, independent: 305, independent conditional: 9, independent unconditional: 296, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 166, unknown conditional: 5, unknown unconditional: 161] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 166, Positive conditional cache size: 5, Positive unconditional cache size: 161, 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: 75 ], Independence queries for same thread: 111 - CounterExampleResult [Line: 745]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L699] 0 int memory[(2*960+1)]; [L700] 0 int next_alloc_idx = 1; VAL [next_alloc_idx=1] [L701] 0 int m = 0; VAL [m={3:0}, next_alloc_idx=1] [L702] 0 int top; VAL [m={3:0}, next_alloc_idx=1, top=0] [L755] 0 int m2 = 0; VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, top=0] [L756] 0 int state = 0; VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, state=0, top=0] [L774] 0 pthread_t t; VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, state=0, t={5:0}, top=0] [L775] COND TRUE 0 1 VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, state=0, t={5:0}, top=0] [L775] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, state=0, t={5:0}, top=0] [L759] CALL 1 __VERIFIER_atomic_acquire(&m2) [L691] EXPR 1 \read(*m) [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L759] RET 1 __VERIFIER_atomic_acquire(&m2) [L762] 1 case 0: [L763] CALL 1 EBStack_init() [L717] 1 top = 0 VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, state=0, top=0] [L763] RET 1 EBStack_init() [L764] 1 state = 1 VAL [arg={0:0}, arg={0:0}, m2={4:0}, m={3:0}, next_alloc_idx=1, state=1, top=0] [L765] 1 case 1: VAL [arg={0:0}, arg={0:0}, m2={4:0}, m={3:0}, next_alloc_idx=1, state=1, top=0] [L766] CALL 1 __VERIFIER_atomic_release(&m2) [L696] EXPR 1 \read(*m) [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L766] RET 1 __VERIFIER_atomic_release(&m2) [L767] CALL 1 push_loop() [L748] 1 int r = -1; VAL [m2={4:0}, m={3:0}, next_alloc_idx=1, r=-1, state=1, top=0] [L749] 1 int arg = __VERIFIER_nondet_int(); VAL [arg=0, m2={4:0}, m={3:0}, next_alloc_idx=1, r=-1, state=1, top=0] [L750] COND TRUE 1 1 [L751] CALL, EXPR 1 push(arg) [L726] 1 int oldTop = -1, newTop = -1; [L727] CALL, EXPR 1 index_malloc() [L704] 1 int curr_alloc_idx = -1; VAL [curr_alloc_idx=-1, m2={4:0}, m={3:0}, next_alloc_idx=1, state=1, top=0] [L705] CALL 1 __VERIFIER_atomic_acquire(&m) [L691] EXPR 1 \read(*m) [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L705] RET 1 __VERIFIER_atomic_acquire(&m) [L706] COND FALSE 1 !(next_alloc_idx+2-1 > (2*960+1)) VAL [curr_alloc_idx=-1, m2={4:0}, m={3:0}, next_alloc_idx=1, state=1, top=0] [L710] 1 curr_alloc_idx = next_alloc_idx VAL [curr_alloc_idx=1, m2={4:0}, m={3:0}, next_alloc_idx=1, state=1, top=0] [L711] 1 next_alloc_idx += 2 VAL [curr_alloc_idx=1, m2={4:0}, m={3:0}, next_alloc_idx=3, state=1, top=0] [L712] CALL 1 __VERIFIER_atomic_release(&m) [L696] EXPR 1 \read(*m) [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L712] RET 1 __VERIFIER_atomic_release(&m) [L714] 1 return curr_alloc_idx; VAL [\result=1, curr_alloc_idx=1, m2={4:0}, m={3:0}, next_alloc_idx=3, state=1, top=0] [L727] RET, EXPR 1 index_malloc() [L727] 1 newTop = index_malloc() VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top=0] [L728] COND FALSE 1 !(newTop == 0) VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top=0] [L731] 1 memory[newTop+0] = d VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top=0] [L732] CALL 1 __VERIFIER_atomic_acquire(&m) [L691] EXPR 1 \read(*m) [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L732] RET 1 __VERIFIER_atomic_acquire(&m) [L733] 1 oldTop = top VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=0] [L734] 1 memory[newTop+1] = oldTop VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=0] [L735] 1 top = newTop VAL [\old(d)=0, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=1] [L736] CALL 1 __VERIFIER_atomic_release(&m) [L696] EXPR 1 \read(*m) [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L736] RET 1 __VERIFIER_atomic_release(&m) [L737] 1 return 1; VAL [\old(d)=0, \result=1, d=0, m2={4:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=1] [L751] RET, EXPR 1 push(arg) [L751] 1 r = push(arg) VAL [arg=0, m2={4:0}, m={3:0}, next_alloc_idx=3, r=1, state=1, top=1] [L752] CALL 1 __VERIFIER_atomic_assert(r) [L745] EXPR 1 !r || !isEmpty() [L745] CALL, EXPR 1 isEmpty() [L720] COND FALSE 1 !(top == 0) [L723] 1 return 0; [L745] RET, EXPR 1 isEmpty() [L745] EXPR 1 !r || !isEmpty() [L745] COND TRUE 1 !(!(!r || !isEmpty())) [L745] 1 reach_error() VAL [\old(r)=1, m2={4:0}, m={3:0}, next_alloc_idx=3, r=1, state=1, top=1] - UnprovableResult [Line: 775]: 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, 153 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, 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: 14, 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, 0.3s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2024-05-07 07:30:26,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-05-07 07:30:26,528 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...