/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 12:04:12,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 12:04:12,666 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 12:04:12,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 12:04:12,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 12:04:12,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 12:04:12,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 12:04:12,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 12:04:12,701 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 12:04:12,705 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 12:04:12,706 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 12:04:12,706 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 12:04:12,707 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 12:04:12,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 12:04:12,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 12:04:12,708 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 12:04:12,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 12:04:12,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 12:04:12,709 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 12:04:12,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 12:04:12,710 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 12:04:12,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 12:04:12,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 12:04:12,711 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 12:04:12,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 12:04:12,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:04:12,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 12:04:12,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 12:04:12,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 12:04:12,712 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 12:04:12,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 12:04:12,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 12:04:12,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 12:04:12,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 12:04:12,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 12:04:12,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 12:04:12,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 12:04:12,995 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 12:04:12,996 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 12:04:12,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-11-10 12:04:14,234 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 12:04:14,485 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 12:04:14,485 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-11-10 12:04:14,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/436ea94bd/e5d5cc7381134aa882335494afe0e683/FLAG172246451 [2023-11-10 12:04:14,514 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/436ea94bd/e5d5cc7381134aa882335494afe0e683 [2023-11-10 12:04:14,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 12:04:14,518 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 12:04:14,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 12:04:14,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 12:04:14,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 12:04:14,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:14,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186bbf4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14, skipping insertion in model container [2023-11-10 12:04:14,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:14,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 12:04:14,721 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2023-11-10 12:04:14,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:04:14,897 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 12:04:14,910 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2023-11-10 12:04:14,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:04:14,979 INFO L206 MainTranslator]: Completed translation [2023-11-10 12:04:14,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14 WrapperNode [2023-11-10 12:04:14,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 12:04:14,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 12:04:14,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 12:04:14,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 12:04:14,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,010 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,031 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2023-11-10 12:04:15,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 12:04:15,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 12:04:15,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 12:04:15,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 12:04:15,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 12:04:15,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 12:04:15,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 12:04:15,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 12:04:15,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (1/1) ... [2023-11-10 12:04:15,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:04:15,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:04:15,084 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) [2023-11-10 12:04:15,088 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 [2023-11-10 12:04:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 12:04:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 12:04:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 12:04:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-10 12:04:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-10 12:04:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 12:04:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 12:04:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 12:04:15,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 12:04:15,122 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 12:04:15,221 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 12:04:15,223 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 12:04:15,312 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 12:04:15,320 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 12:04:15,320 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 12:04:15,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:04:15 BoogieIcfgContainer [2023-11-10 12:04:15,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 12:04:15,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 12:04:15,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 12:04:15,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 12:04:15,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:04:14" (1/3) ... [2023-11-10 12:04:15,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a2a963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:04:15, skipping insertion in model container [2023-11-10 12:04:15,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:14" (2/3) ... [2023-11-10 12:04:15,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a2a963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:04:15, skipping insertion in model container [2023-11-10 12:04:15,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:04:15" (3/3) ... [2023-11-10 12:04:15,332 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-11-10 12:04:15,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 12:04:15,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-10 12:04:15,350 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 12:04:15,398 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 12:04:15,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 40 transitions, 84 flow [2023-11-10 12:04:15,472 INFO L124 PetriNetUnfolderBase]: 1/39 cut-off events. [2023-11-10 12:04:15,473 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 12:04:15,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 39 events. 1/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-11-10 12:04:15,476 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 40 transitions, 84 flow [2023-11-10 12:04:15,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 32 transitions, 67 flow [2023-11-10 12:04:15,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 12:04:15,518 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f41144d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 12:04:15,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-10 12:04:15,528 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 12:04:15,529 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2023-11-10 12:04:15,529 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 12:04:15,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:15,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:15,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-10 12:04:15,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:15,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1727191663, now seen corresponding path program 1 times [2023-11-10 12:04:15,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:15,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857603919] [2023-11-10 12:04:15,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:15,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:04:15,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 12:04:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:04:15,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 12:04:15,728 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 12:04:15,730 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-10 12:04:15,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-10 12:04:15,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-11-10 12:04:15,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 12:04:15,734 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-10 12:04:15,741 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 12:04:15,741 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 12:04:15,756 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre2 could not be translated [2023-11-10 12:04:15,757 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-10 12:04:15,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:04:15 BasicIcfg [2023-11-10 12:04:15,764 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 12:04:15,765 INFO L158 Benchmark]: Toolchain (without parser) took 1246.31ms. Allocated memory was 179.3MB in the beginning and 271.6MB in the end (delta: 92.3MB). Free memory was 125.5MB in the beginning and 222.9MB in the end (delta: -97.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 12:04:15,765 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 179.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 12:04:15,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.98ms. Allocated memory is still 179.3MB. Free memory was 125.5MB in the beginning and 106.9MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-11-10 12:04:15,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.09ms. Allocated memory is still 179.3MB. Free memory was 106.9MB in the beginning and 105.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 12:04:15,767 INFO L158 Benchmark]: Boogie Preprocessor took 22.33ms. Allocated memory is still 179.3MB. Free memory was 105.2MB in the beginning and 103.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-10 12:04:15,767 INFO L158 Benchmark]: RCFGBuilder took 268.52ms. Allocated memory is still 179.3MB. Free memory was 103.8MB in the beginning and 93.0MB in the end (delta: 10.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-11-10 12:04:15,767 INFO L158 Benchmark]: TraceAbstraction took 438.11ms. Allocated memory was 179.3MB in the beginning and 271.6MB in the end (delta: 92.3MB). Free memory was 92.3MB in the beginning and 223.4MB in the end (delta: -131.2MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 12:04:15,770 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 179.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 459.98ms. Allocated memory is still 179.3MB. Free memory was 125.5MB in the beginning and 106.9MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.09ms. Allocated memory is still 179.3MB. Free memory was 106.9MB in the beginning and 105.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.33ms. Allocated memory is still 179.3MB. Free memory was 105.2MB in the beginning and 103.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 268.52ms. Allocated memory is still 179.3MB. Free memory was 103.8MB in the beginning and 93.0MB in the end (delta: 10.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 438.11ms. Allocated memory was 179.3MB in the beginning and 271.6MB in the end (delta: 92.3MB). Free memory was 92.3MB in the beginning and 223.4MB in the end (delta: -131.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; VAL [x=3] [L689] 0 pthread_t id; VAL [id={3:0}, x=3] [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); VAL [arg={0:0}, arg={0:0}, x=3] [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 58 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2023-11-10 12:04:15,794 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...