/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 '"3,2 1,1 2,2"' --traceabstraction.defines.what.statements.are.considered.a.step.in.por ALL_READ_WRITE -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 04:45:42,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 04:45:42,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 04:45:42,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-05-04 04:45:42,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 04:45:42,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 04:45:42,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 04:45:42,608 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 04:45:42,627 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 04:45:42,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 04:45:42,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 04:45:42,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 04:45:42,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 04:45:42,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 04:45:42,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 04:45:42,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 04:45:42,630 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 04:45:42,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 04:45:42,630 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 04:45:42,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 04:45:42,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 04:45:42,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 04:45:42,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 04:45:42,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 04:45:42,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 04:45:42,631 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 04:45:42,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 04:45:42,631 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 04:45:42,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 04:45:42,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 04:45:42,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 04:45:42,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 04:45:42,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 04:45:42,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 04:45:42,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 04:45:42,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 04:45:42,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 04:45:42,632 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 04:45:42,633 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 04:45:42,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 04:45:42,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 04:45:42,633 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 04:45:42,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 04:45:42,633 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 04:45:42,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> ALL_READ_WRITE [2023-05-04 04:45:42,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 04:45:42,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 04:45:42,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 04:45:42,855 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 04:45:42,857 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 04:45:42,858 INFO L432 ainManager$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 04:45:42,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b3f85ce/ea5ec7acb66040f7b46659f19c43bff2/FLAGf82746561 [2023-05-04 04:45:43,347 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 04:45:43,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i [2023-05-04 04:45:43,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b3f85ce/ea5ec7acb66040f7b46659f19c43bff2/FLAGf82746561 [2023-05-04 04:45:43,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b3f85ce/ea5ec7acb66040f7b46659f19c43bff2 [2023-05-04 04:45:43,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 04:45:43,711 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 04:45:43,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 04:45:43,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 04:45:43,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 04:45:43,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 04:45:43" (1/1) ... [2023-05-04 04:45:43,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7517bb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:43, skipping insertion in model container [2023-05-04 04:45:43,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 04:45:43" (1/1) ... [2023-05-04 04:45:43,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 04:45:43,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 04:45:44,133 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 04:45:44,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 04:45:44,160 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 04:45:44,195 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 04:45:44,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 04:45:44,232 INFO L208 MainTranslator]: Completed translation [2023-05-04 04:45:44,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44 WrapperNode [2023-05-04 04:45:44,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 04:45:44,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 04:45:44,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 04:45:44,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 04:45:44,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,297 INFO L138 Inliner]: procedures = 179, calls = 36, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 174 [2023-05-04 04:45:44,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 04:45:44,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 04:45:44,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 04:45:44,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 04:45:44,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,327 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 04:45:44,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 04:45:44,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 04:45:44,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 04:45:44,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (1/1) ... [2023-05-04 04:45:44,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 04:45:44,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:45:44,381 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 04:45:44,396 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 04:45:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 04:45:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-05-04 04:45:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-05-04 04:45:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 04:45:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-04 04:45:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 04:45:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 04:45:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 04:45:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 04:45:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-04 04:45:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 04:45:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 04:45:44,426 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 04:45:44,532 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 04:45:44,534 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 04:45:44,870 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 04:45:45,059 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 04:45:45,059 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-05-04 04:45:45,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 04:45:45 BoogieIcfgContainer [2023-05-04 04:45:45,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 04:45:45,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 04:45:45,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 04:45:45,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 04:45:45,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 04:45:43" (1/3) ... [2023-05-04 04:45:45,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587ac88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 04:45:45, skipping insertion in model container [2023-05-04 04:45:45,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:45:44" (2/3) ... [2023-05-04 04:45:45,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587ac88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 04:45:45, skipping insertion in model container [2023-05-04 04:45:45,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 04:45:45" (3/3) ... [2023-05-04 04:45:45,074 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack_longer-1.i [2023-05-04 04:45:45,085 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 04:45:45,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 04:45:45,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 04:45:45,095 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 04:45:45,176 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 04:45:45,233 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 04:45:45,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 04:45:45,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:45:45,237 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 04:45:45,261 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 04:45:45,284 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 04:45:45,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2023-05-04 04:45:45,319 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;@3b4b2acf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 04:45:45,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 04:45:45,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:45:45,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:45:45,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1591360525, now seen corresponding path program 1 times [2023-05-04 04:45:45,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:45:45,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140120098] [2023-05-04 04:45:45,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:45:45,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:45:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:45:45,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 04:45:45,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:45:45,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140120098] [2023-05-04 04:45:45,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140120098] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:45:45,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:45:45,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 04:45:45,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973957969] [2023-05-04 04:45:45,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:45:45,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 04:45:45,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:45:45,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 04:45:45,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 04:45:45,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:45:45,786 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:45:45,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 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 04:45:45,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:45:45,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:45:45,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 04:45:45,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:45:45,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:45:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash 423937295, now seen corresponding path program 1 times [2023-05-04 04:45:45,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:45:45,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006314265] [2023-05-04 04:45:45,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:45:45,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:45:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 04:45:46,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 04:45:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 04:45:46,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 04:45:46,114 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 04:45:46,116 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 04:45:46,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 04:45:46,128 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2023-05-04 04:45:46,130 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was UNSAFE (1/2) [2023-05-04 04:45:46,133 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-04 04:45:46,133 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-04 04:45:46,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 04:45:46 BasicIcfg [2023-05-04 04:45:46,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-04 04:45:46,222 INFO L158 Benchmark]: Toolchain (without parser) took 2510.84ms. Allocated memory was 208.7MB in the beginning and 299.9MB in the end (delta: 91.2MB). Free memory was 172.3MB in the beginning and 231.8MB in the end (delta: -59.5MB). Peak memory consumption was 30.3MB. Max. memory is 8.0GB. [2023-05-04 04:45:46,222 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 208.7MB. Free memory is still 161.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 04:45:46,223 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.62ms. Allocated memory was 208.7MB in the beginning and 299.9MB in the end (delta: 91.2MB). Free memory was 172.0MB in the beginning and 258.3MB in the end (delta: -86.2MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. [2023-05-04 04:45:46,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.97ms. Allocated memory is still 299.9MB. Free memory was 258.3MB in the beginning and 255.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 04:45:46,223 INFO L158 Benchmark]: Boogie Preprocessor took 39.84ms. Allocated memory is still 299.9MB. Free memory was 255.9MB in the beginning and 254.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 04:45:46,224 INFO L158 Benchmark]: RCFGBuilder took 723.60ms. Allocated memory is still 299.9MB. Free memory was 254.1MB in the beginning and 217.1MB in the end (delta: 37.0MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-05-04 04:45:46,224 INFO L158 Benchmark]: TraceAbstraction took 1155.07ms. Allocated memory is still 299.9MB. Free memory was 216.1MB in the beginning and 231.8MB in the end (delta: -15.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 04:45:46,226 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 208.7MB. Free memory is still 161.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 520.62ms. Allocated memory was 208.7MB in the beginning and 299.9MB in the end (delta: 91.2MB). Free memory was 172.0MB in the beginning and 258.3MB in the end (delta: -86.2MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.97ms. Allocated memory is still 299.9MB. Free memory was 258.3MB in the beginning and 255.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.84ms. Allocated memory is still 299.9MB. Free memory was 255.9MB in the beginning and 254.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 723.60ms. Allocated memory is still 299.9MB. Free memory was 254.1MB in the beginning and 217.1MB in the end (delta: 37.0MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1155.07ms. Allocated memory is still 299.9MB. Free memory was 216.1MB in the beginning and 231.8MB in the end (delta: -15.7MB). There was no memory consumed. 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: 1075, independent: 1018, independent conditional: 49, independent unconditional: 969, dependent: 57, dependent conditional: 53, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1022, independent: 1018, independent conditional: 49, independent unconditional: 969, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1022, independent: 1018, independent conditional: 49, independent unconditional: 969, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1022, independent: 1018, independent conditional: 0, independent unconditional: 1018, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1022, independent: 1018, independent conditional: 0, independent unconditional: 1018, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1022, independent: 1018, independent conditional: 0, independent unconditional: 1018, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 943, independent: 939, independent conditional: 0, independent unconditional: 939, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 943, independent: 936, independent conditional: 0, independent unconditional: 936, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 7, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 120, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1022, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 943, unknown conditional: 0, unknown unconditional: 943] , Statistics on independence cache: Total cache size (in pairs): 943, Positive cache size: 939, Positive conditional cache size: 0, Positive unconditional cache size: 939, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, 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: 53 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 145, Number of trivial persistent sets: 134, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 973, independent: 969, independent conditional: 0, independent unconditional: 969, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1075, independent: 1018, independent conditional: 49, independent unconditional: 969, dependent: 57, dependent conditional: 53, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1022, independent: 1018, independent conditional: 49, independent unconditional: 969, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1022, independent: 1018, independent conditional: 49, independent unconditional: 969, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1022, independent: 1018, independent conditional: 0, independent unconditional: 1018, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1022, independent: 1018, independent conditional: 0, independent unconditional: 1018, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1022, independent: 1018, independent conditional: 0, independent unconditional: 1018, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 943, independent: 939, independent conditional: 0, independent unconditional: 939, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 943, independent: 936, independent conditional: 0, independent unconditional: 936, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 7, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 120, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1022, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 943, unknown conditional: 0, unknown unconditional: 943] , Statistics on independence cache: Total cache size (in pairs): 943, Positive cache size: 939, Positive conditional cache size: 0, Positive unconditional cache size: 939, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, 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: 53 - 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] [L779] COND TRUE 0 1 VAL [m={4:0}, m2={3:0}, next_alloc_idx=1, state=0, t={5:0}, top=0] [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] [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)=0, state=1, t={5:0}, 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: 0.9s, OverallIterations: 2, 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: 2, 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, 0.1s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 1/1 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 04:45:46,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-05-04 04:45:46,463 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...