/usr/lib/jvm/java-1.11.0-openjdk-amd64/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-SemanticLbe.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -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.datarace-free-lbe-02cf818-m [2023-11-17 11:35:25,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:35:25,444 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-SemanticLbe.epf [2023-11-17 11:35:25,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:35:25,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:35:25,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:35:25,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:35:25,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:35:25,487 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:35:25,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:35:25,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:35:25,491 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:35:25,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:35:25,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:35:25,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:35:25,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:35:25,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:35:25,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:35:25,494 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:35:25,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:35:25,494 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:35:25,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:35:25,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:35:25,495 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:35:25,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:35:25,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:35:25,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:35:25,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:35:25,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:35:25,497 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:35:25,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:35:25,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:35:25,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:35:25,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:35:25,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:35:25,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:35:25,753 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:35:25,753 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:35:25,754 INFO L431 ainManager$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 [2023-11-17 11:35:26,894 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:35:27,159 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:35:27,160 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-11-17 11:35:27,177 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fc2e7906/1d69757b02554eb598f28b447f1cc711/FLAGd89a65866 [2023-11-17 11:35:27,196 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fc2e7906/1d69757b02554eb598f28b447f1cc711 [2023-11-17 11:35:27,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:35:27,200 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:35:27,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:35:27,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:35:27,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:35:27,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:27,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb06215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27, skipping insertion in model container [2023-11-17 11:35:27,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:27,275 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:35:27,414 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] [2023-11-17 11:35:27,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:35:27,731 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:35:27,743 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] [2023-11-17 11:35:27,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:35:27,924 WARN L675 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:35:27,931 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:35:27,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27 WrapperNode [2023-11-17 11:35:27,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:35:27,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:35:27,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:35:27,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:35:27,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:27,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:28,006 INFO L138 Inliner]: procedures = 355, calls = 41, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2023-11-17 11:35:28,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:35:28,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:35:28,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:35:28,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:35:28,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:28,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:28,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:28,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:28,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:28,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:28,049 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:28,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:28,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:35:28,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:35:28,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:35:28,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:35:28,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (1/1) ... [2023-11-17 11:35:28,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:35:28,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:35:28,092 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) [2023-11-17 11:35:28,093 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 [2023-11-17 11:35:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-17 11:35:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-11-17 11:35:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-11-17 11:35:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-11-17 11:35:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-11-17 11:35:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:35:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:35:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:35:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:35:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:35:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:35:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:35:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:35:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:35:28,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:35:28,119 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 11:35:28,377 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:35:28,378 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:35:28,518 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:35:28,651 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:35:28,651 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 11:35:28,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:35:28 BoogieIcfgContainer [2023-11-17 11:35:28,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:35:28,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:35:28,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:35:28,662 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:35:28,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:35:27" (1/3) ... [2023-11-17 11:35:28,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abcbb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:35:28, skipping insertion in model container [2023-11-17 11:35:28,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:27" (2/3) ... [2023-11-17 11:35:28,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abcbb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:35:28, skipping insertion in model container [2023-11-17 11:35:28,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:35:28" (3/3) ... [2023-11-17 11:35:28,664 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-11-17 11:35:28,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:35:28,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 11:35:28,678 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:35:28,708 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-17 11:35:28,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 72 flow [2023-11-17 11:35:28,771 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2023-11-17 11:35:28,772 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 11:35:28,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 27 events. 1/27 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-11-17 11:35:28,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 29 transitions, 72 flow [2023-11-17 11:35:28,782 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 20 transitions, 49 flow [2023-11-17 11:35:28,790 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:35:28,805 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 20 transitions, 49 flow [2023-11-17 11:35:28,810 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 20 transitions, 49 flow [2023-11-17 11:35:28,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 20 transitions, 49 flow [2023-11-17 11:35:28,819 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2023-11-17 11:35:28,819 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:35:28,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 20 events. 0/20 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-17 11:35:28,820 INFO L119 LiptonReduction]: Number of co-enabled transitions 158 [2023-11-17 11:35:29,130 INFO L134 LiptonReduction]: Checked pairs total: 285 [2023-11-17 11:35:29,130 INFO L136 LiptonReduction]: Total number of compositions: 8 [2023-11-17 11:35:29,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:35:29,157 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;@79b57399, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:35:29,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-17 11:35:29,163 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:35:29,163 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-17 11:35:29,163 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:35:29,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:29,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-17 11:35:29,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:35:29,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:29,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1439174825, now seen corresponding path program 1 times [2023-11-17 11:35:29,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:29,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25832368] [2023-11-17 11:35:29,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:29,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:29,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:29,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25832368] [2023-11-17 11:35:29,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25832368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:29,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:29,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 11:35:29,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574351675] [2023-11-17 11:35:29,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:29,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:35:29,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:29,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:35:29,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:35:29,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2023-11-17 11:35:29,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-17 11:35:29,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:29,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2023-11-17 11:35:29,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:29,757 INFO L124 PetriNetUnfolderBase]: 26/63 cut-off events. [2023-11-17 11:35:29,758 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-17 11:35:29,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 63 events. 26/63 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 161 event pairs, 12 based on Foata normal form. 6/69 useless extension candidates. Maximal degree in co-relation 114. Up to 33 conditions per place. [2023-11-17 11:35:29,761 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 13 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2023-11-17 11:35:29,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 76 flow [2023-11-17 11:35:29,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:35:29,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:35:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2023-11-17 11:35:29,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34234234234234234 [2023-11-17 11:35:29,773 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 38 transitions. [2023-11-17 11:35:29,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 38 transitions. [2023-11-17 11:35:29,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:29,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 38 transitions. [2023-11-17 11:35:29,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2023-11-17 11:35:29,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2023-11-17 11:35:29,784 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2023-11-17 11:35:29,786 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 33 flow. Second operand 3 states and 38 transitions. [2023-11-17 11:35:29,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 76 flow [2023-11-17 11:35:29,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 16 transitions, 70 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 11:35:29,790 INFO L231 Difference]: Finished difference. Result has 19 places, 12 transitions, 39 flow [2023-11-17 11:35:29,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=39, PETRI_PLACES=19, PETRI_TRANSITIONS=12} [2023-11-17 11:35:29,795 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 0 predicate places. [2023-11-17 11:35:29,795 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 12 transitions, 39 flow [2023-11-17 11:35:29,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-17 11:35:29,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:29,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:29,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:35:29,796 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:35:29,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:29,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1664746401, now seen corresponding path program 1 times [2023-11-17 11:35:29,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:29,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009352801] [2023-11-17 11:35:29,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:29,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:29,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:29,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009352801] [2023-11-17 11:35:29,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009352801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:29,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:29,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:35:29,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019555994] [2023-11-17 11:35:29,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:29,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:35:29,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:29,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:35:29,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:35:29,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2023-11-17 11:35:29,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-17 11:35:29,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:29,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2023-11-17 11:35:29,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:30,022 INFO L124 PetriNetUnfolderBase]: 15/44 cut-off events. [2023-11-17 11:35:30,022 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-17 11:35:30,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 44 events. 15/44 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 6 based on Foata normal form. 8/52 useless extension candidates. Maximal degree in co-relation 42. Up to 23 conditions per place. [2023-11-17 11:35:30,024 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 9 selfloop transitions, 3 changer transitions 5/17 dead transitions. [2023-11-17 11:35:30,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 17 transitions, 86 flow [2023-11-17 11:35:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:35:30,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:35:30,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2023-11-17 11:35:30,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36936936936936937 [2023-11-17 11:35:30,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 41 transitions. [2023-11-17 11:35:30,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 41 transitions. [2023-11-17 11:35:30,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:30,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 41 transitions. [2023-11-17 11:35:30,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2023-11-17 11:35:30,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2023-11-17 11:35:30,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2023-11-17 11:35:30,031 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 39 flow. Second operand 3 states and 41 transitions. [2023-11-17 11:35:30,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 17 transitions, 86 flow [2023-11-17 11:35:30,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 17 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:35:30,032 INFO L231 Difference]: Finished difference. Result has 19 places, 9 transitions, 31 flow [2023-11-17 11:35:30,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=31, PETRI_PLACES=19, PETRI_TRANSITIONS=9} [2023-11-17 11:35:30,033 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 0 predicate places. [2023-11-17 11:35:30,033 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 9 transitions, 31 flow [2023-11-17 11:35:30,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-17 11:35:30,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:30,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:30,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 11:35:30,035 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:35:30,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash 974044349, now seen corresponding path program 1 times [2023-11-17 11:35:30,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:30,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077895005] [2023-11-17 11:35:30,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:30,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:35:30,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 11:35:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:35:30,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 11:35:30,148 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 11:35:30,149 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-17 11:35:30,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-17 11:35:30,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-17 11:35:30,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-17 11:35:30,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 11:35:30,154 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-17 11:35:30,160 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:35:30,160 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:35:30,188 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-17 11:35:30,189 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-11-17 11:35:30,189 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-17 11:35:30,190 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-17 11:35:30,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:35:30 BasicIcfg [2023-11-17 11:35:30,194 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:35:30,194 INFO L158 Benchmark]: Toolchain (without parser) took 2994.22ms. Allocated memory is still 267.4MB. Free memory was 211.3MB in the beginning and 148.3MB in the end (delta: 63.0MB). Peak memory consumption was 63.5MB. Max. memory is 8.0GB. [2023-11-17 11:35:30,194 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 192.9MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:35:30,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.03ms. Allocated memory is still 267.4MB. Free memory was 211.0MB in the beginning and 226.0MB in the end (delta: -15.0MB). Peak memory consumption was 43.5MB. Max. memory is 8.0GB. [2023-11-17 11:35:30,195 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.26ms. Allocated memory is still 267.4MB. Free memory was 226.0MB in the beginning and 223.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-17 11:35:30,195 INFO L158 Benchmark]: Boogie Preprocessor took 48.32ms. Allocated memory is still 267.4MB. Free memory was 223.4MB in the beginning and 220.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 11:35:30,196 INFO L158 Benchmark]: RCFGBuilder took 596.63ms. Allocated memory is still 267.4MB. Free memory was 220.8MB in the beginning and 189.3MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-11-17 11:35:30,196 INFO L158 Benchmark]: TraceAbstraction took 1539.06ms. Allocated memory is still 267.4MB. Free memory was 188.3MB in the beginning and 148.3MB in the end (delta: 39.9MB). Peak memory consumption was 39.9MB. Max. memory is 8.0GB. [2023-11-17 11:35:30,198 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 192.9MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 729.03ms. Allocated memory is still 267.4MB. Free memory was 211.0MB in the beginning and 226.0MB in the end (delta: -15.0MB). Peak memory consumption was 43.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 74.26ms. Allocated memory is still 267.4MB. Free memory was 226.0MB in the beginning and 223.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.32ms. Allocated memory is still 267.4MB. Free memory was 223.4MB in the beginning and 220.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 596.63ms. Allocated memory is still 267.4MB. Free memory was 220.8MB in the beginning and 189.3MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1539.06ms. Allocated memory is still 267.4MB. Free memory was 188.3MB in the beginning and 148.3MB in the end (delta: 39.9MB). Peak memory consumption was 39.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 27 PlacesBefore, 19 PlacesAfterwards, 20 TransitionsBefore, 12 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 285 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 182, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 118, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 118, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 182, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 118, unknown conditional: 0, unknown unconditional: 118] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1151:1150}, argv={1151:1150}, 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}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1151:1150}, argv={1151:1150}, cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) [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: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 50 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: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 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! [2023-11-17 11:35:30,216 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...