/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/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:46:35,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:46:35,304 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 11:46:35,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:46:35,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:46:35,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:46:35,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:46:35,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:46:35,333 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:46:35,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:46:35,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:46:35,336 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:46:35,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:46:35,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:46:35,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:46:35,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:46:35,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:46:35,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:46:35,338 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:46:35,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:46:35,339 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:46:35,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:46:35,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:46:35,340 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:46:35,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:46:35,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:46:35,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:46:35,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:46:35,341 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:46:35,341 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:46:35,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:46:35,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:46:35,342 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:46:35,342 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:46:35,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:46:35,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:46:35,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:46:35,570 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:46:35,570 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:46:35,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:46:36,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:46:36,813 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:46:36,813 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:46:36,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acfdf5408/bd91c60c26fe4d69a54afdd4f8600ab2/FLAGb100e8637 [2023-11-10 11:46:36,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acfdf5408/bd91c60c26fe4d69a54afdd4f8600ab2 [2023-11-10 11:46:36,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:46:36,839 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:46:36,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:46:36,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:46:36,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:46:36,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:46:36" (1/1) ... [2023-11-10 11:46:36,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a506b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:36, skipping insertion in model container [2023-11-10 11:46:36,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:46:36" (1/1) ... [2023-11-10 11:46:36,874 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:46:36,985 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2023-11-10 11:46:37,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:46:37,107 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:46:37,125 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2023-11-10 11:46:37,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:46:37,186 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:46:37,186 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:46:37,191 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:46:37,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37 WrapperNode [2023-11-10 11:46:37,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:46:37,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:46:37,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:46:37,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:46:37,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,219 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-11-10 11:46:37,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:46:37,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:46:37,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:46:37,220 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:46:37,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:46:37,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:46:37,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:46:37,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:46:37,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (1/1) ... [2023-11-10 11:46:37,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:46:37,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:46:37,277 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 11:46:37,279 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 11:46:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:46:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:46:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:46:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:46:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:46:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-10 11:46:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-10 11:46:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-10 11:46:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-10 11:46:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:46:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:46:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:46:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:46:37,304 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 11:46:37,394 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:46:37,396 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:46:37,508 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:46:37,514 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:46:37,514 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:46:37,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:46:37 BoogieIcfgContainer [2023-11-10 11:46:37,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:46:37,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:46:37,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:46:37,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:46:37,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:46:36" (1/3) ... [2023-11-10 11:46:37,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53dbb8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:46:37, skipping insertion in model container [2023-11-10 11:46:37,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:37" (2/3) ... [2023-11-10 11:46:37,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53dbb8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:46:37, skipping insertion in model container [2023-11-10 11:46:37,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:46:37" (3/3) ... [2023-11-10 11:46:37,526 INFO L112 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:46:37,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:46:37,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-10 11:46:37,542 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:46:37,588 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:46:37,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 156 flow [2023-11-10 11:46:37,650 INFO L124 PetriNetUnfolderBase]: 2/72 cut-off events. [2023-11-10 11:46:37,650 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:46:37,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-11-10 11:46:37,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 74 transitions, 156 flow [2023-11-10 11:46:37,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 59 transitions, 124 flow [2023-11-10 11:46:37,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:46:37,673 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;@6634bfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:46:37,673 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-10 11:46:37,705 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:46:37,706 INFO L124 PetriNetUnfolderBase]: 1/58 cut-off events. [2023-11-10 11:46:37,706 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:46:37,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:46:37,707 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] [2023-11-10 11:46:37,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:46:37,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:46:37,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1758881318, now seen corresponding path program 1 times [2023-11-10 11:46:37,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:46:37,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903121760] [2023-11-10 11:46:37,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:46:37,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:46:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:46:38,224 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 11:46:38,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:46:38,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903121760] [2023-11-10 11:46:38,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903121760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:46:38,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:46:38,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:46:38,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528939809] [2023-11-10 11:46:38,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:46:38,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:46:38,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:46:38,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:46:38,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:46:38,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 74 [2023-11-10 11:46:38,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 124 flow. Second operand has 7 states, 7 states have (on average 57.42857142857143) internal successors, (402), 7 states have internal predecessors, (402), 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 11:46:38,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:46:38,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 74 [2023-11-10 11:46:38,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:46:38,457 INFO L124 PetriNetUnfolderBase]: 21/143 cut-off events. [2023-11-10 11:46:38,457 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-10 11:46:38,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 143 events. 21/143 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 426 event pairs, 0 based on Foata normal form. 6/146 useless extension candidates. Maximal degree in co-relation 179. Up to 21 conditions per place. [2023-11-10 11:46:38,460 INFO L140 encePairwiseOnDemand]: 67/74 looper letters, 12 selfloop transitions, 2 changer transitions 16/76 dead transitions. [2023-11-10 11:46:38,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 76 transitions, 221 flow [2023-11-10 11:46:38,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:46:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:46:38,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 538 transitions. [2023-11-10 11:46:38,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8078078078078078 [2023-11-10 11:46:38,478 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 538 transitions. [2023-11-10 11:46:38,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 538 transitions. [2023-11-10 11:46:38,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:46:38,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 538 transitions. [2023-11-10 11:46:38,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 59.77777777777778) internal successors, (538), 9 states have internal predecessors, (538), 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 11:46:38,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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 11:46:38,493 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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 11:46:38,494 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 124 flow. Second operand 9 states and 538 transitions. [2023-11-10 11:46:38,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 76 transitions, 221 flow [2023-11-10 11:46:38,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 76 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:46:38,498 INFO L231 Difference]: Finished difference. Result has 78 places, 58 transitions, 140 flow [2023-11-10 11:46:38,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=140, PETRI_PLACES=78, PETRI_TRANSITIONS=58} [2023-11-10 11:46:38,503 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 13 predicate places. [2023-11-10 11:46:38,503 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 58 transitions, 140 flow [2023-11-10 11:46:38,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 57.42857142857143) internal successors, (402), 7 states have internal predecessors, (402), 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 11:46:38,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:46:38,504 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] [2023-11-10 11:46:38,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:46:38,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:46:38,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:46:38,506 INFO L85 PathProgramCache]: Analyzing trace with hash 998810843, now seen corresponding path program 1 times [2023-11-10 11:46:38,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:46:38,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139530853] [2023-11-10 11:46:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:46:38,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:46:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:46:38,763 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 11:46:38,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:46:38,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139530853] [2023-11-10 11:46:38,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139530853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:46:38,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:46:38,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:46:38,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009673342] [2023-11-10 11:46:38,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:46:38,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:46:38,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:46:38,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:46:38,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:46:38,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74 [2023-11-10 11:46:38,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 58 transitions, 140 flow. Second operand has 7 states, 7 states have (on average 55.714285714285715) internal successors, (390), 7 states have internal predecessors, (390), 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 11:46:38,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:46:38,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74 [2023-11-10 11:46:38,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:46:39,005 INFO L124 PetriNetUnfolderBase]: 17/128 cut-off events. [2023-11-10 11:46:39,005 INFO L125 PetriNetUnfolderBase]: For 37/48 co-relation queries the response was YES. [2023-11-10 11:46:39,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 128 events. 17/128 cut-off events. For 37/48 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 347 event pairs, 1 based on Foata normal form. 5/130 useless extension candidates. Maximal degree in co-relation 229. Up to 16 conditions per place. [2023-11-10 11:46:39,007 INFO L140 encePairwiseOnDemand]: 65/74 looper letters, 16 selfloop transitions, 4 changer transitions 25/89 dead transitions. [2023-11-10 11:46:39,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 89 transitions, 348 flow [2023-11-10 11:46:39,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-10 11:46:39,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-10 11:46:39,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 967 transitions. [2023-11-10 11:46:39,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7686804451510334 [2023-11-10 11:46:39,010 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 967 transitions. [2023-11-10 11:46:39,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 967 transitions. [2023-11-10 11:46:39,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:46:39,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 967 transitions. [2023-11-10 11:46:39,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 56.88235294117647) internal successors, (967), 17 states have internal predecessors, (967), 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 11:46:39,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 74.0) internal successors, (1332), 18 states have internal predecessors, (1332), 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 11:46:39,016 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 74.0) internal successors, (1332), 18 states have internal predecessors, (1332), 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 11:46:39,016 INFO L175 Difference]: Start difference. First operand has 78 places, 58 transitions, 140 flow. Second operand 17 states and 967 transitions. [2023-11-10 11:46:39,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 89 transitions, 348 flow [2023-11-10 11:46:39,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 89 transitions, 284 flow, removed 28 selfloop flow, removed 8 redundant places. [2023-11-10 11:46:39,021 INFO L231 Difference]: Finished difference. Result has 95 places, 58 transitions, 168 flow [2023-11-10 11:46:39,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=168, PETRI_PLACES=95, PETRI_TRANSITIONS=58} [2023-11-10 11:46:39,022 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 30 predicate places. [2023-11-10 11:46:39,022 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 58 transitions, 168 flow [2023-11-10 11:46:39,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 55.714285714285715) internal successors, (390), 7 states have internal predecessors, (390), 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 11:46:39,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:46:39,023 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] [2023-11-10 11:46:39,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:46:39,024 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:46:39,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:46:39,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1258890270, now seen corresponding path program 1 times [2023-11-10 11:46:39,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:46:39,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521700012] [2023-11-10 11:46:39,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:46:39,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:46:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:46:39,192 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 11:46:39,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:46:39,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521700012] [2023-11-10 11:46:39,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521700012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:46:39,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:46:39,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:46:39,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826855635] [2023-11-10 11:46:39,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:46:39,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:46:39,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:46:39,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:46:39,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:46:39,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74 [2023-11-10 11:46:39,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 58 transitions, 168 flow. Second operand has 8 states, 8 states have (on average 55.625) internal successors, (445), 8 states have internal predecessors, (445), 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 11:46:39,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:46:39,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74 [2023-11-10 11:46:39,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:46:39,316 INFO L124 PetriNetUnfolderBase]: 5/89 cut-off events. [2023-11-10 11:46:39,316 INFO L125 PetriNetUnfolderBase]: For 97/112 co-relation queries the response was YES. [2023-11-10 11:46:39,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 89 events. 5/89 cut-off events. For 97/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 152 event pairs, 1 based on Foata normal form. 2/89 useless extension candidates. Maximal degree in co-relation 181. Up to 10 conditions per place. [2023-11-10 11:46:39,318 INFO L140 encePairwiseOnDemand]: 66/74 looper letters, 10 selfloop transitions, 4 changer transitions 13/70 dead transitions. [2023-11-10 11:46:39,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 70 transitions, 300 flow [2023-11-10 11:46:39,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:46:39,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:46:39,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 568 transitions. [2023-11-10 11:46:39,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7675675675675676 [2023-11-10 11:46:39,321 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 568 transitions. [2023-11-10 11:46:39,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 568 transitions. [2023-11-10 11:46:39,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:46:39,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 568 transitions. [2023-11-10 11:46:39,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 56.8) internal successors, (568), 10 states have internal predecessors, (568), 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 11:46:39,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 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 11:46:39,324 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 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 11:46:39,324 INFO L175 Difference]: Start difference. First operand has 95 places, 58 transitions, 168 flow. Second operand 10 states and 568 transitions. [2023-11-10 11:46:39,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 70 transitions, 300 flow [2023-11-10 11:46:39,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 70 transitions, 222 flow, removed 31 selfloop flow, removed 17 redundant places. [2023-11-10 11:46:39,328 INFO L231 Difference]: Finished difference. Result has 83 places, 57 transitions, 160 flow [2023-11-10 11:46:39,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=160, PETRI_PLACES=83, PETRI_TRANSITIONS=57} [2023-11-10 11:46:39,329 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 18 predicate places. [2023-11-10 11:46:39,329 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 57 transitions, 160 flow [2023-11-10 11:46:39,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 55.625) internal successors, (445), 8 states have internal predecessors, (445), 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 11:46:39,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:46:39,329 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] [2023-11-10 11:46:39,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:46:39,338 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:46:39,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:46:39,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1034301313, now seen corresponding path program 1 times [2023-11-10 11:46:39,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:46:39,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114389550] [2023-11-10 11:46:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:46:39,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:46:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:46:39,442 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 11:46:39,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:46:39,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114389550] [2023-11-10 11:46:39,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114389550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:46:39,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:46:39,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:46:39,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820186339] [2023-11-10 11:46:39,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:46:39,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:46:39,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:46:39,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:46:39,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:46:39,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74 [2023-11-10 11:46:39,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 57 transitions, 160 flow. Second operand has 8 states, 8 states have (on average 55.625) internal successors, (445), 8 states have internal predecessors, (445), 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 11:46:39,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:46:39,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74 [2023-11-10 11:46:39,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:46:39,533 INFO L124 PetriNetUnfolderBase]: 4/63 cut-off events. [2023-11-10 11:46:39,534 INFO L125 PetriNetUnfolderBase]: For 39/43 co-relation queries the response was YES. [2023-11-10 11:46:39,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 63 events. 4/63 cut-off events. For 39/43 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 2/65 useless extension candidates. Maximal degree in co-relation 115. Up to 5 conditions per place. [2023-11-10 11:46:39,536 INFO L140 encePairwiseOnDemand]: 66/74 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2023-11-10 11:46:39,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 62 transitions, 222 flow [2023-11-10 11:46:39,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:46:39,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:46:39,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 616 transitions. [2023-11-10 11:46:39,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7567567567567568 [2023-11-10 11:46:39,538 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 616 transitions. [2023-11-10 11:46:39,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 616 transitions. [2023-11-10 11:46:39,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:46:39,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 616 transitions. [2023-11-10 11:46:39,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.0) internal successors, (616), 11 states have internal predecessors, (616), 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 11:46:39,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 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 11:46:39,541 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 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 11:46:39,541 INFO L175 Difference]: Start difference. First operand has 83 places, 57 transitions, 160 flow. Second operand 11 states and 616 transitions. [2023-11-10 11:46:39,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 62 transitions, 222 flow [2023-11-10 11:46:39,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 62 transitions, 178 flow, removed 15 selfloop flow, removed 10 redundant places. [2023-11-10 11:46:39,543 INFO L231 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2023-11-10 11:46:39,543 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2023-11-10 11:46:39,545 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 9 predicate places. [2023-11-10 11:46:39,545 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2023-11-10 11:46:39,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 55.625) internal successors, (445), 8 states have internal predecessors, (445), 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 11:46:39,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-10 11:46:39,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-10 11:46:39,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-10 11:46:39,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:46:39,550 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-10 11:46:39,553 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:46:39,553 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:46:39,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:46:39 BasicIcfg [2023-11-10 11:46:39,558 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:46:39,560 INFO L158 Benchmark]: Toolchain (without parser) took 2718.76ms. Allocated memory was 210.8MB in the beginning and 319.8MB in the end (delta: 109.1MB). Free memory was 168.1MB in the beginning and 237.1MB in the end (delta: -69.0MB). Peak memory consumption was 40.8MB. Max. memory is 8.0GB. [2023-11-10 11:46:39,561 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 210.8MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:46:39,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.74ms. Allocated memory is still 210.8MB. Free memory was 167.8MB in the beginning and 147.8MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-10 11:46:39,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.31ms. Allocated memory is still 210.8MB. Free memory was 147.8MB in the beginning and 145.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 11:46:39,562 INFO L158 Benchmark]: Boogie Preprocessor took 15.79ms. Allocated memory is still 210.8MB. Free memory was 145.8MB in the beginning and 144.5MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-10 11:46:39,562 INFO L158 Benchmark]: RCFGBuilder took 283.16ms. Allocated memory is still 210.8MB. Free memory was 144.5MB in the beginning and 131.8MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-11-10 11:46:39,563 INFO L158 Benchmark]: TraceAbstraction took 2036.47ms. Allocated memory was 210.8MB in the beginning and 319.8MB in the end (delta: 109.1MB). Free memory was 130.9MB in the beginning and 237.1MB in the end (delta: -106.2MB). Peak memory consumption was 4.1MB. Max. memory is 8.0GB. [2023-11-10 11:46:39,569 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 210.8MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 351.74ms. Allocated memory is still 210.8MB. Free memory was 167.8MB in the beginning and 147.8MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.31ms. Allocated memory is still 210.8MB. Free memory was 147.8MB in the beginning and 145.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.79ms. Allocated memory is still 210.8MB. Free memory was 145.8MB in the beginning and 144.5MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 283.16ms. Allocated memory is still 210.8MB. Free memory was 144.5MB in the beginning and 131.8MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2036.47ms. Allocated memory was 210.8MB in the beginning and 319.8MB in the end (delta: 109.1MB). Free memory was 130.9MB in the beginning and 237.1MB in the end (delta: -106.2MB). Peak memory consumption was 4.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 91 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 201 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 148 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 53 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=2, InterpolantAutomatonStates: 47, 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, 0.8s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 793 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-10 11:46:39,587 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...