/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 19:34:34,415 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-04 19:34:34,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 19:34:34,492 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 19:34:34,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 19:34:34,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 19:34:34,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 19:34:34,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 19:34:34,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 19:34:34,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 19:34:34,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 19:34:34,493 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 19:34:34,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 19:34:34,494 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 19:34:34,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 19:34:34,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 19:34:34,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 19:34:34,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 19:34:34,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 19:34:34,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 19:34:34,494 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 19:34:34,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 19:34:34,494 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 19:34:34,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 19:34:34,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 19:34:34,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 19:34:34,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 19:34:34,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 19:34:34,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 19:34:34,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 19:34:34,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 19:34:34,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 19:34:34,505 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 19:34:34,505 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 19:34:34,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 19:34:34,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 19:34:34,505 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 19:34:34,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 19:34:34,506 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 19:34:34,506 INFO L138 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/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-04 19:34:34,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 19:34:34,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 19:34:34,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 19:34:34,682 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 19:34:34,682 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 19:34:34,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i [2023-05-04 19:34:34,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab8161c1/93dd946152854581b388e3c32edc25c4/FLAG9a4051416 [2023-05-04 19:34:35,106 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 19:34:35,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i [2023-05-04 19:34:35,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab8161c1/93dd946152854581b388e3c32edc25c4/FLAG9a4051416 [2023-05-04 19:34:35,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab8161c1/93dd946152854581b388e3c32edc25c4 [2023-05-04 19:34:35,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 19:34:35,125 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 19:34:35,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 19:34:35,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 19:34:35,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 19:34:35,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15499dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35, skipping insertion in model container [2023-05-04 19:34:35,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 19:34:35,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 19:34:35,388 WARN L230 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_longer-1.i[31182,31195] [2023-05-04 19:34:35,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 19:34:35,406 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 19:34:35,451 WARN L230 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_longer-1.i[31182,31195] [2023-05-04 19:34:35,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 19:34:35,479 INFO L208 MainTranslator]: Completed translation [2023-05-04 19:34:35,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35 WrapperNode [2023-05-04 19:34:35,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 19:34:35,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 19:34:35,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 19:34:35,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 19:34:35,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,530 INFO L138 Inliner]: procedures = 179, calls = 36, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 174 [2023-05-04 19:34:35,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 19:34:35,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 19:34:35,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 19:34:35,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 19:34:35,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,556 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 19:34:35,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 19:34:35,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 19:34:35,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 19:34:35,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (1/1) ... [2023-05-04 19:34:35,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 19:34:35,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 19:34:35,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-05-04 19:34:35,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-05-04 19:34:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 19:34:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-05-04 19:34:35,620 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-05-04 19:34:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 19:34:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-04 19:34:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 19:34:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 19:34:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 19:34:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 19:34:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-04 19:34:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 19:34:35,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 19:34:35,621 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 19:34:35,765 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 19:34:35,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 19:34:35,972 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 19:34:36,100 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 19:34:36,100 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-05-04 19:34:36,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 07:34:36 BoogieIcfgContainer [2023-05-04 19:34:36,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 19:34:36,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 19:34:36,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 19:34:36,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 19:34:36,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 07:34:35" (1/3) ... [2023-05-04 19:34:36,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b36c6f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 07:34:36, skipping insertion in model container [2023-05-04 19:34:36,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:34:35" (2/3) ... [2023-05-04 19:34:36,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b36c6f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 07:34:36, skipping insertion in model container [2023-05-04 19:34:36,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 07:34:36" (3/3) ... [2023-05-04 19:34:36,113 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack_longer-1.i [2023-05-04 19:34:36,122 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 19:34:36,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 19:34:36,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 19:34:36,130 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 19:34:36,182 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 19:34:36,210 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:34:36,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 19:34:36,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 19:34:36,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 19:34:36,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-05-04 19:34:36,258 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 19:34:36,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2023-05-04 19:34:36,286 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=LoopsAndPotentialCycles, 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;@64b4ea2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:34:36,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 19:34:36,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:34:36,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:34:36,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1281308666, now seen corresponding path program 1 times [2023-05-04 19:34:36,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:34:36,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793675122] [2023-05-04 19:34:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:34:36,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:34:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:34:36,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 19:34:36,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:34:36,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793675122] [2023-05-04 19:34:36,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793675122] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:34:36,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:34:36,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:34:36,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755288484] [2023-05-04 19:34:36,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:34:36,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:34:36,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:34:36,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:34:36,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:34:36,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:34:36,859 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:34:36,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2023-05-04 19:34:36,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:34:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:34:36,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 19:34:36,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:34:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:34:36,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2075680505, now seen corresponding path program 1 times [2023-05-04 19:34:36,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:34:36,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681267844] [2023-05-04 19:34:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:34:36,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:34:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:34:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 19:34:37,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:34:37,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681267844] [2023-05-04 19:34:37,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681267844] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:34:37,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:34:37,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-04 19:34:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896439011] [2023-05-04 19:34:37,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:34:37,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 19:34:37,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:34:37,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 19:34:37,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-05-04 19:34:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:34:37,150 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:34:37,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-05-04 19:34:37,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:34:37,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:34:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:34:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 19:34:37,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 19:34:37,296 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:34:37,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:34:37,297 INFO L85 PathProgramCache]: Analyzing trace with hash -781804992, now seen corresponding path program 1 times [2023-05-04 19:34:37,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:34:37,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298555158] [2023-05-04 19:34:37,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:34:37,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:34:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 19:34:37,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 19:34:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 19:34:37,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 19:34:37,385 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 19:34:37,386 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 19:34:37,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 19:34:37,394 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-04 19:34:37,395 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was UNSAFE (1/2) [2023-05-04 19:34:37,398 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-04 19:34:37,398 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-04 19:34:37,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 07:34:37 BasicIcfg [2023-05-04 19:34:37,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-04 19:34:37,467 INFO L158 Benchmark]: Toolchain (without parser) took 2342.13ms. Allocated memory was 201.3MB in the beginning and 270.5MB in the end (delta: 69.2MB). Free memory was 144.6MB in the beginning and 172.4MB in the end (delta: -27.8MB). Peak memory consumption was 40.8MB. Max. memory is 8.0GB. [2023-05-04 19:34:37,468 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 201.3MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 19:34:37,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.37ms. Allocated memory was 201.3MB in the beginning and 270.5MB in the end (delta: 69.2MB). Free memory was 144.3MB in the beginning and 234.2MB in the end (delta: -90.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-05-04 19:34:37,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.28ms. Allocated memory is still 270.5MB. Free memory was 234.2MB in the beginning and 231.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-05-04 19:34:37,470 INFO L158 Benchmark]: Boogie Preprocessor took 27.91ms. Allocated memory is still 270.5MB. Free memory was 231.6MB in the beginning and 230.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-04 19:34:37,470 INFO L158 Benchmark]: RCFGBuilder took 542.43ms. Allocated memory is still 270.5MB. Free memory was 230.1MB in the beginning and 192.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-05-04 19:34:37,473 INFO L158 Benchmark]: TraceAbstraction took 1363.20ms. Allocated memory is still 270.5MB. Free memory was 191.3MB in the beginning and 172.4MB in the end (delta: 18.8MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-05-04 19:34:37,474 INFO L339 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 201.3MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 353.37ms. Allocated memory was 201.3MB in the beginning and 270.5MB in the end (delta: 69.2MB). Free memory was 144.3MB in the beginning and 234.2MB in the end (delta: -90.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.28ms. Allocated memory is still 270.5MB. Free memory was 234.2MB in the beginning and 231.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.91ms. Allocated memory is still 270.5MB. Free memory was 231.6MB in the beginning and 230.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 542.43ms. Allocated memory is still 270.5MB. Free memory was 230.1MB in the beginning and 192.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1363.20ms. Allocated memory is still 270.5MB. Free memory was 191.3MB in the beginning and 172.4MB in the end (delta: 18.8MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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: 2065, independent: 1751, independent conditional: 418, independent unconditional: 1333, dependent: 314, dependent conditional: 297, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1768, independent: 1751, independent conditional: 418, independent unconditional: 1333, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1768, independent: 1751, independent conditional: 418, independent unconditional: 1333, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1768, independent: 1751, independent conditional: 0, independent unconditional: 1751, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1768, independent: 1751, independent conditional: 0, independent unconditional: 1751, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1768, independent: 1751, independent conditional: 0, independent unconditional: 1751, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1194, independent: 1177, independent conditional: 0, independent unconditional: 1177, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1194, independent: 1156, independent conditional: 0, independent unconditional: 1156, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 38, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 135, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1768, independent: 574, independent conditional: 0, independent unconditional: 574, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1194, unknown conditional: 0, unknown unconditional: 1194] , Statistics on independence cache: Total cache size (in pairs): 1194, Positive cache size: 1177, Positive conditional cache size: 0, Positive unconditional cache size: 1177, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 297 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 96, Number of trivial persistent sets: 52, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1350, independent: 1333, independent conditional: 0, independent unconditional: 1333, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2065, independent: 1751, independent conditional: 418, independent unconditional: 1333, dependent: 314, dependent conditional: 297, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1768, independent: 1751, independent conditional: 418, independent unconditional: 1333, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1768, independent: 1751, independent conditional: 418, independent unconditional: 1333, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1768, independent: 1751, independent conditional: 0, independent unconditional: 1751, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1768, independent: 1751, independent conditional: 0, independent unconditional: 1751, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1768, independent: 1751, independent conditional: 0, independent unconditional: 1751, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1194, independent: 1177, independent conditional: 0, independent unconditional: 1177, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1194, independent: 1156, independent conditional: 0, independent unconditional: 1156, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 38, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 135, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1768, independent: 574, independent conditional: 0, independent unconditional: 574, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1194, unknown conditional: 0, unknown unconditional: 1194] , Statistics on independence cache: Total cache size (in pairs): 1194, Positive cache size: 1177, Positive conditional cache size: 0, Positive unconditional cache size: 1177, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 297 - CounterExampleResult [Line: 749]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L701] 0 int memory[(2*320+1)]; [L704] 0 int top; VAL [top=0] [L759] 0 int m2 = 0; VAL [m2={3:0}, top=0] [L702] 0 int next_alloc_idx = 1; VAL [m2={3:0}, next_alloc_idx=1, top=0] [L760] 0 int state = 0; VAL [m2={3:0}, next_alloc_idx=1, state=0, top=0] [L703] 0 int m = 0; VAL [m={4:0}, m2={3:0}, next_alloc_idx=1, state=0, top=0] [L778] 0 pthread_t t; VAL [m={4:0}, m2={3:0}, next_alloc_idx=1, state=0, t={5:0}, top=0] [L779] COND TRUE 0 1 VAL [m={4:0}, m2={3:0}, next_alloc_idx=1, state=0, t={5:0}, top=0] [L779] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m={4:0}, m2={3:0}, next_alloc_idx=1, pthread_create(&t, 0, thr1, 0)=-1, state=0, t={5:0}, top=0] [L763] CALL 1 __VERIFIER_atomic_acquire(&m2) [L693] EXPR 1 \read(*m) [L693] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L693] RET 1 assume_abort_if_not(*m==0) [L694] 1 *m = 1 [L763] RET 1 __VERIFIER_atomic_acquire(&m2) [L766] 1 case 0: VAL [arg={0:0}, arg={0:0}, m={4:0}, m2={3:0}, next_alloc_idx=1, state=0, top=0] [L767] CALL 1 EBStack_init() [L719] 1 top = 0 VAL [m={4:0}, m2={3:0}, next_alloc_idx=1, state=0, top=0] [L767] RET 1 EBStack_init() [L768] 1 state = 1 VAL [arg={0:0}, arg={0:0}, m={4:0}, m2={3:0}, next_alloc_idx=1, state=1, top=0] [L769] 1 case 1: VAL [arg={0:0}, arg={0:0}, m={4:0}, m2={3:0}, next_alloc_idx=1, state=1, top=0] [L770] CALL 1 __VERIFIER_atomic_release(&m2) [L698] EXPR 1 \read(*m) [L698] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L698] RET 1 assume_abort_if_not(*m==1) [L699] 1 *m = 0 [L770] RET 1 __VERIFIER_atomic_release(&m2) [L771] CALL 1 push_loop() [L752] 1 int r = -1; VAL [m={4:0}, m2={3:0}, next_alloc_idx=1, r=-1, state=1, top=0] [L753] 1 int arg = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, arg=0, m={4:0}, m2={3:0}, next_alloc_idx=1, r=-1, state=1, top=0] [L754] COND TRUE 1 1 VAL [arg=0, m={4:0}, m2={3:0}, next_alloc_idx=1, r=-1, state=1, top=0] [L755] CALL, EXPR 1 push(arg) [L728] 1 int oldTop = -1, newTop = -1; VAL [\old(d)=0, d=0, m={4:0}, m2={3:0}, newTop=-1, next_alloc_idx=1, oldTop=-1, state=1, top=0] [L729] CALL, EXPR 1 index_malloc() [L706] 1 int curr_alloc_idx = -1; VAL [curr_alloc_idx=-1, m={4:0}, m2={3:0}, next_alloc_idx=1, state=1, top=0] [L707] CALL 1 __VERIFIER_atomic_acquire(&m) [L693] EXPR 1 \read(*m) [L693] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L693] RET 1 assume_abort_if_not(*m==0) [L694] 1 *m = 1 [L707] RET 1 __VERIFIER_atomic_acquire(&m) [L708] COND FALSE 1 !(next_alloc_idx+2-1 > (2*320+1)) VAL [curr_alloc_idx=-1, m={4:0}, m2={3:0}, next_alloc_idx=1, state=1, top=0] [L712] 1 curr_alloc_idx = next_alloc_idx VAL [curr_alloc_idx=1, m={4:0}, m2={3:0}, next_alloc_idx=1, state=1, top=0] [L713] 1 next_alloc_idx += 2 VAL [curr_alloc_idx=1, m={4:0}, m2={3:0}, next_alloc_idx=3, state=1, top=0] [L714] CALL 1 __VERIFIER_atomic_release(&m) [L698] EXPR 1 \read(*m) [L698] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L698] RET 1 assume_abort_if_not(*m==1) [L699] 1 *m = 0 [L714] RET 1 __VERIFIER_atomic_release(&m) [L716] 1 return curr_alloc_idx; VAL [\result=1, curr_alloc_idx=1, m={4:0}, m2={3:0}, next_alloc_idx=3, state=1, top=0] [L729] RET, EXPR 1 index_malloc() [L729] 1 newTop = index_malloc() VAL [\old(d)=0, d=0, index_malloc()=1, m={4:0}, m2={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top=0] [L730] COND FALSE 1 !(newTop == 0) VAL [\old(d)=0, d=0, m={4:0}, m2={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top=0] [L733] 1 memory[newTop+0] = d VAL [\old(d)=0, d=0, m={4:0}, m2={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top=0] [L734] CALL 1 __VERIFIER_atomic_acquire(&m) [L693] EXPR 1 \read(*m) [L693] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L693] RET 1 assume_abort_if_not(*m==0) [L694] 1 *m = 1 [L734] RET 1 __VERIFIER_atomic_acquire(&m) [L735] 1 oldTop = top VAL [\old(d)=0, d=0, m={4:0}, m2={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=0] [L736] 1 memory[newTop+1] = oldTop VAL [\old(d)=0, d=0, m={4:0}, m2={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=0] [L738] 1 top = newTop VAL [\old(d)=0, d=0, m={4:0}, m2={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=1] [L740] CALL 1 __VERIFIER_atomic_release(&m) [L698] EXPR 1 \read(*m) [L698] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L698] RET 1 assume_abort_if_not(*m==1) [L699] 1 *m = 0 [L740] RET 1 __VERIFIER_atomic_release(&m) [L741] 1 return 1; VAL [\old(d)=0, \result=1, d=0, m={4:0}, m2={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top=1] [L755] RET, EXPR 1 push(arg) [L755] 1 r = push(arg) VAL [arg=0, m={4:0}, m2={3:0}, next_alloc_idx=3, push(arg)=1, r=1, state=1, top=1] [L756] CALL 1 __VERIFIER_atomic_assert(r) [L749] EXPR 1 !r || !isEmpty() [L749] CALL, EXPR 1 isEmpty() [L722] COND FALSE 1 !(top == 0) [L725] 1 return 0; [L749] RET, EXPR 1 isEmpty() [L749] EXPR 1 !r || !isEmpty() [L749] COND TRUE 1 !(!(!r || !isEmpty())) [L749] 1 reach_error() VAL [\old(r)=1, m={4:0}, m2={3:0}, next_alloc_idx=3, r=1, state=1, top=1] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 163 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, 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: 12, 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, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 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 RESULT: Ultimate proved your program to be incorrect! [2023-05-04 19:34:37,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-05-04 19:34:37,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...