/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/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:55:02,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:55:02,903 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 11:55:02,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:55:02,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:55:02,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:55:02,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:55:02,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:55:02,933 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:55:02,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:55:02,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:55:02,934 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:55:02,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:55:02,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:55:02,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:55:02,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:55:02,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:55:02,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:55:02,936 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:55:02,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:55:02,936 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:55:02,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:55:02,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:55:02,940 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:55:02,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:55:02,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:55:02,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:55:02,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:55:02,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:55:02,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:55:02,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:55:02,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:55:02,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:55:02,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:55:03,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:55:03,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:55:03,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:55:03,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:55:03,117 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:55:03,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-11-10 11:55:04,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:55:04,404 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:55:04,404 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-11-10 11:55:04,417 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abe609b33/58e321ad82ff45e89bb6c954b4c69f8e/FLAGaab3b7682 [2023-11-10 11:55:04,427 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abe609b33/58e321ad82ff45e89bb6c954b4c69f8e [2023-11-10 11:55:04,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:55:04,430 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:55:04,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:55:04,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:55:04,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:55:04,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:04,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1164946f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04, skipping insertion in model container [2023-11-10 11:55:04,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:04,479 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:55:04,590 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/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2023-11-10 11:55:04,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:55:04,811 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:55:04,820 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/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2023-11-10 11:55:04,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:55:04,915 WARN L672 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:55:04,921 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:55:04,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04 WrapperNode [2023-11-10 11:55:04,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:55:04,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:55:04,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:55:04,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:55:04,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:04,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:05,018 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2023-11-10 11:55:05,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:55:05,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:55:05,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:55:05,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:55:05,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:05,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:05,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:05,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:05,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:05,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:05,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:05,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:05,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:55:05,071 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:55:05,071 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:55:05,071 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:55:05,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (1/1) ... [2023-11-10 11:55:05,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:55:05,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:55:05,154 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 11:55:05,226 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 11:55:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-10 11:55:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-11-10 11:55:05,260 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-11-10 11:55:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-11-10 11:55:05,261 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-11-10 11:55:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:55:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:55:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 11:55:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:55:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 11:55:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:55:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:55:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:55:05,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:55:05,263 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 11:55:05,487 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:55:05,489 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:55:05,612 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:55:05,618 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:55:05,618 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:55:05,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:55:05 BoogieIcfgContainer [2023-11-10 11:55:05,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:55:05,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:55:05,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:55:05,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:55:05,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:55:04" (1/3) ... [2023-11-10 11:55:05,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82541c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:55:05, skipping insertion in model container [2023-11-10 11:55:05,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:55:04" (2/3) ... [2023-11-10 11:55:05,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82541c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:55:05, skipping insertion in model container [2023-11-10 11:55:05,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:55:05" (3/3) ... [2023-11-10 11:55:05,627 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-11-10 11:55:05,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:55:05,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-10 11:55:05,644 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:55:05,679 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-10 11:55:05,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 91 transitions, 196 flow [2023-11-10 11:55:05,729 INFO L124 PetriNetUnfolderBase]: 1/89 cut-off events. [2023-11-10 11:55:05,729 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-10 11:55:05,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 89 events. 1/89 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-11-10 11:55:05,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 91 transitions, 196 flow [2023-11-10 11:55:05,735 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 69 transitions, 147 flow [2023-11-10 11:55:05,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:55:05,746 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;@5f1ac04b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:55:05,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-10 11:55:05,759 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:55:05,759 INFO L124 PetriNetUnfolderBase]: 0/65 cut-off events. [2023-11-10 11:55:05,759 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-10 11:55:05,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:55:05,760 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, 1, 1, 1, 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 11:55:05,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:55:05,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:55:05,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1279201691, now seen corresponding path program 1 times [2023-11-10 11:55:05,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:55:05,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098866646] [2023-11-10 11:55:05,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:55:05,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:55:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:55:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:55:06,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:55:06,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098866646] [2023-11-10 11:55:06,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098866646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:55:06,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:55:06,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:55:06,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368017639] [2023-11-10 11:55:06,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:55:06,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:55:06,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:55:06,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:55:06,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:55:06,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2023-11-10 11:55:06,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 147 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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) [2023-11-10 11:55:06,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:55:06,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2023-11-10 11:55:06,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:55:06,350 INFO L124 PetriNetUnfolderBase]: 16/142 cut-off events. [2023-11-10 11:55:06,350 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-11-10 11:55:06,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 142 events. 16/142 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 404 event pairs, 1 based on Foata normal form. 4/146 useless extension candidates. Maximal degree in co-relation 137. Up to 21 conditions per place. [2023-11-10 11:55:06,352 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 11 selfloop transitions, 3 changer transitions 11/84 dead transitions. [2023-11-10 11:55:06,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 84 transitions, 236 flow [2023-11-10 11:55:06,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-10 11:55:06,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-10 11:55:06,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 545 transitions. [2023-11-10 11:55:06,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8555729984301413 [2023-11-10 11:55:06,363 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 545 transitions. [2023-11-10 11:55:06,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 545 transitions. [2023-11-10 11:55:06,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:55:06,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 545 transitions. [2023-11-10 11:55:06,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 77.85714285714286) internal successors, (545), 7 states have internal predecessors, (545), 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) [2023-11-10 11:55:06,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 91.0) internal successors, (728), 8 states have internal predecessors, (728), 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) [2023-11-10 11:55:06,376 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 91.0) internal successors, (728), 8 states have internal predecessors, (728), 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) [2023-11-10 11:55:06,378 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 147 flow. Second operand 7 states and 545 transitions. [2023-11-10 11:55:06,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 84 transitions, 236 flow [2023-11-10 11:55:06,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 84 transitions, 226 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 11:55:06,382 INFO L231 Difference]: Finished difference. Result has 84 places, 69 transitions, 161 flow [2023-11-10 11:55:06,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=161, PETRI_PLACES=84, PETRI_TRANSITIONS=69} [2023-11-10 11:55:06,386 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 8 predicate places. [2023-11-10 11:55:06,386 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 69 transitions, 161 flow [2023-11-10 11:55:06,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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) [2023-11-10 11:55:06,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:55:06,387 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, 1, 1, 1, 1, 1, 1, 1, 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 11:55:06,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:55:06,387 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:55:06,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:55:06,388 INFO L85 PathProgramCache]: Analyzing trace with hash -101261213, now seen corresponding path program 1 times [2023-11-10 11:55:06,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:55:06,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690252103] [2023-11-10 11:55:06,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:55:06,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:55:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:55:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:55:06,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:55:06,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690252103] [2023-11-10 11:55:06,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690252103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:55:06,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:55:06,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:55:06,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365157421] [2023-11-10 11:55:06,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:55:06,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:55:06,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:55:06,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:55:06,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:55:06,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 91 [2023-11-10 11:55:06,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 69 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 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) [2023-11-10 11:55:06,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:55:06,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 91 [2023-11-10 11:55:06,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:55:06,716 INFO L124 PetriNetUnfolderBase]: 7/93 cut-off events. [2023-11-10 11:55:06,717 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-10 11:55:06,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 93 events. 7/93 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 163 event pairs, 1 based on Foata normal form. 10/102 useless extension candidates. Maximal degree in co-relation 152. Up to 13 conditions per place. [2023-11-10 11:55:06,717 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 15 selfloop transitions, 5 changer transitions 12/74 dead transitions. [2023-11-10 11:55:06,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 74 transitions, 230 flow [2023-11-10 11:55:06,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 11:55:06,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 11:55:06,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 340 transitions. [2023-11-10 11:55:06,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7472527472527473 [2023-11-10 11:55:06,720 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 340 transitions. [2023-11-10 11:55:06,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 340 transitions. [2023-11-10 11:55:06,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:55:06,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 340 transitions. [2023-11-10 11:55:06,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 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) [2023-11-10 11:55:06,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 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) [2023-11-10 11:55:06,722 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 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) [2023-11-10 11:55:06,722 INFO L175 Difference]: Start difference. First operand has 84 places, 69 transitions, 161 flow. Second operand 5 states and 340 transitions. [2023-11-10 11:55:06,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 74 transitions, 230 flow [2023-11-10 11:55:06,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 74 transitions, 216 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-11-10 11:55:06,724 INFO L231 Difference]: Finished difference. Result has 78 places, 59 transitions, 135 flow [2023-11-10 11:55:06,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=78, PETRI_TRANSITIONS=59} [2023-11-10 11:55:06,725 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 2 predicate places. [2023-11-10 11:55:06,725 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 59 transitions, 135 flow [2023-11-10 11:55:06,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 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) [2023-11-10 11:55:06,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:55:06,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:06,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:55:06,726 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:55:06,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:55:06,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1096529204, now seen corresponding path program 1 times [2023-11-10 11:55:06,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:55:06,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265847013] [2023-11-10 11:55:06,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:55:06,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:55:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 11:55:06,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 11:55:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 11:55:06,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 11:55:06,823 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 11:55:06,824 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-10 11:55:06,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-10 11:55:06,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-10 11:55:06,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-10 11:55:06,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:55:06,832 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-10 11:55:06,839 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:55:06,839 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:55:06,875 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-10 11:55:06,876 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-10 11:55:06,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:55:06 BasicIcfg [2023-11-10 11:55:06,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:55:06,886 INFO L158 Benchmark]: Toolchain (without parser) took 2455.91ms. Allocated memory was 215.0MB in the beginning and 325.1MB in the end (delta: 110.1MB). Free memory was 160.5MB in the beginning and 266.4MB in the end (delta: -105.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-11-10 11:55:06,887 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 215.0MB. Free memory is still 163.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:55:06,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.74ms. Allocated memory is still 215.0MB. Free memory was 160.2MB in the beginning and 122.2MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-11-10 11:55:06,889 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.75ms. Allocated memory was 215.0MB in the beginning and 325.1MB in the end (delta: 110.1MB). Free memory was 122.2MB in the beginning and 288.9MB in the end (delta: -166.7MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2023-11-10 11:55:06,890 INFO L158 Benchmark]: Boogie Preprocessor took 51.39ms. Allocated memory is still 325.1MB. Free memory was 288.9MB in the beginning and 286.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-10 11:55:06,891 INFO L158 Benchmark]: RCFGBuilder took 549.98ms. Allocated memory is still 325.1MB. Free memory was 286.3MB in the beginning and 265.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-11-10 11:55:06,892 INFO L158 Benchmark]: TraceAbstraction took 1262.71ms. Allocated memory is still 325.1MB. Free memory was 264.8MB in the beginning and 266.4MB in the end (delta: -1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:55:06,896 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 215.0MB. Free memory is still 163.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 490.74ms. Allocated memory is still 215.0MB. Free memory was 160.2MB in the beginning and 122.2MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 96.75ms. Allocated memory was 215.0MB in the beginning and 325.1MB in the end (delta: 110.1MB). Free memory was 122.2MB in the beginning and 288.9MB in the end (delta: -166.7MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.39ms. Allocated memory is still 325.1MB. Free memory was 288.9MB in the beginning and 286.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 549.98ms. Allocated memory is still 325.1MB. Free memory was 286.3MB in the beginning and 265.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1262.71ms. Allocated memory is still 325.1MB. Free memory was 264.8MB in the beginning and 266.4MB in the end (delta: -1.6MB). 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~pre8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 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: [L1351] 0 int g; VAL [g=0] [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [g=0, mut={3:0}] [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [cond={4:0}, g=0, mut={3:0}] [L1373] 0 pthread_t t1; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, t1={6:0}] [L1374] 0 pthread_t t2; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, t1={6:0}, t2={5:0}] [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, ptr={0:0}, t1={6:0}, t2={5:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, ptr={0:0}, t1={6:0}, t2={5:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) VAL [\old(cond)=0, cond=0, cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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. - UnprovableResult [Line: 1377]: 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 5 procedures, 123 locations, 4 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 26 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=1, 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, 0.5s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 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! [2023-11-10 11:55:06,913 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...