/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 06:18:11,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 06:18:11,449 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-VariableLbe.epf [2023-08-24 06:18:11,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 06:18:11,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 06:18:11,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 06:18:11,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 06:18:11,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 06:18:11,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 06:18:11,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 06:18:11,469 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 06:18:11,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 06:18:11,469 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 06:18:11,470 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 06:18:11,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 06:18:11,470 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 06:18:11,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 06:18:11,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 06:18:11,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 06:18:11,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 06:18:11,471 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 06:18:11,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 06:18:11,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 06:18:11,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 06:18:11,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 06:18:11,474 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 06:18:11,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 06:18:11,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 06:18:11,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 06:18:11,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 06:18:11,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 06:18:11,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 06:18:11,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 06:18:11,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 06:18:11,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 06:18:11,476 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-24 06:18:11,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 06:18:11,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 06:18:11,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 06:18:11,730 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 06:18:11,732 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 06:18:11,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-08-24 06:18:12,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 06:18:13,013 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 06:18:13,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-08-24 06:18:13,023 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba5bb4d10/9cc5a7bf833641b6875c42857864891e/FLAGa3a92be50 [2023-08-24 06:18:13,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba5bb4d10/9cc5a7bf833641b6875c42857864891e [2023-08-24 06:18:13,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 06:18:13,041 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 06:18:13,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 06:18:13,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 06:18:13,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 06:18:13,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd3023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13, skipping insertion in model container [2023-08-24 06:18:13,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,071 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 06:18:13,181 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_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2023-08-24 06:18:13,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 06:18:13,282 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 06:18:13,297 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_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2023-08-24 06:18:13,309 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-24 06:18:13,311 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-24 06:18:13,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 06:18:13,357 INFO L206 MainTranslator]: Completed translation [2023-08-24 06:18:13,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13 WrapperNode [2023-08-24 06:18:13,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 06:18:13,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 06:18:13,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 06:18:13,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 06:18:13,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,401 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2023-08-24 06:18:13,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 06:18:13,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 06:18:13,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 06:18:13,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 06:18:13,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,426 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 06:18:13,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 06:18:13,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 06:18:13,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 06:18:13,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (1/1) ... [2023-08-24 06:18:13,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 06:18:13,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 06:18:13,482 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) [2023-08-24 06:18:13,520 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 [2023-08-24 06:18:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 06:18:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-24 06:18:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 06:18:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 06:18:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-24 06:18:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-24 06:18:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 06:18:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 06:18:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 06:18:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 06:18:13,531 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 06:18:13,635 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 06:18:13,636 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 06:18:13,778 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 06:18:13,785 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 06:18:13,785 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 06:18:13,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:18:13 BoogieIcfgContainer [2023-08-24 06:18:13,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 06:18:13,787 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 06:18:13,788 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 06:18:13,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 06:18:13,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:18:13" (1/3) ... [2023-08-24 06:18:13,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de52e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:18:13, skipping insertion in model container [2023-08-24 06:18:13,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:18:13" (2/3) ... [2023-08-24 06:18:13,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de52e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:18:13, skipping insertion in model container [2023-08-24 06:18:13,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:18:13" (3/3) ... [2023-08-24 06:18:13,791 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-08-24 06:18:13,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 06:18:13,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 06:18:13,805 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 06:18:13,861 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:18:13,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 135 flow [2023-08-24 06:18:13,948 INFO L124 PetriNetUnfolderBase]: 1/64 cut-off events. [2023-08-24 06:18:13,949 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 06:18:13,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 1/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-08-24 06:18:13,953 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 135 flow [2023-08-24 06:18:13,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 54 transitions, 111 flow [2023-08-24 06:18:13,960 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:18:13,978 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 54 transitions, 111 flow [2023-08-24 06:18:13,981 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 54 transitions, 111 flow [2023-08-24 06:18:13,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 54 transitions, 111 flow [2023-08-24 06:18:14,002 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2023-08-24 06:18:14,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 06:18:14,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 54 events. 0/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-24 06:18:14,003 INFO L119 LiptonReduction]: Number of co-enabled transitions 300 [2023-08-24 06:18:15,873 INFO L134 LiptonReduction]: Checked pairs total: 882 [2023-08-24 06:18:15,874 INFO L136 LiptonReduction]: Total number of compositions: 41 [2023-08-24 06:18:15,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 06:18:15,894 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@623ce125, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:18:15,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-24 06:18:15,898 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:18:15,898 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-08-24 06:18:15,899 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 06:18:15,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:18:15,899 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:18:15,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:18:15,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:18:15,903 INFO L85 PathProgramCache]: Analyzing trace with hash -691826702, now seen corresponding path program 1 times [2023-08-24 06:18:15,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:18:15,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077515738] [2023-08-24 06:18:15,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:18:15,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:18:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 06:18:16,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 06:18:16,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 06:18:16,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077515738] [2023-08-24 06:18:16,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077515738] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 06:18:16,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 06:18:16,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 06:18:16,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451640515] [2023-08-24 06:18:16,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 06:18:16,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 06:18:16,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 06:18:16,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 06:18:16,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 06:18:16,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2023-08-24 06:18:16,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2023-08-24 06:18:16,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 06:18:16,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2023-08-24 06:18:16,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 06:18:16,192 INFO L124 PetriNetUnfolderBase]: 12/51 cut-off events. [2023-08-24 06:18:16,192 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 06:18:16,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 51 events. 12/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 141 event pairs, 9 based on Foata normal form. 5/56 useless extension candidates. Maximal degree in co-relation 84. Up to 30 conditions per place. [2023-08-24 06:18:16,193 INFO L140 encePairwiseOnDemand]: 103/106 looper letters, 10 selfloop transitions, 2 changer transitions 2/17 dead transitions. [2023-08-24 06:18:16,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 17 transitions, 65 flow [2023-08-24 06:18:16,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 06:18:16,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 06:18:16,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2023-08-24 06:18:16,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5943396226415094 [2023-08-24 06:18:16,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 189 transitions. [2023-08-24 06:18:16,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 189 transitions. [2023-08-24 06:18:16,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 06:18:16,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 189 transitions. [2023-08-24 06:18:16,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-08-24 06:18:16,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2023-08-24 06:18:16,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2023-08-24 06:18:16,210 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 29 flow. Second operand 3 states and 189 transitions. [2023-08-24 06:18:16,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 17 transitions, 65 flow [2023-08-24 06:18:16,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 17 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 06:18:16,212 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 36 flow [2023-08-24 06:18:16,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2023-08-24 06:18:16,216 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 2 predicate places. [2023-08-24 06:18:16,216 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 36 flow [2023-08-24 06:18:16,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2023-08-24 06:18:16,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:18:16,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:18:16,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 06:18:16,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:18:16,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:18:16,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1297812922, now seen corresponding path program 1 times [2023-08-24 06:18:16,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:18:16,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564659574] [2023-08-24 06:18:16,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:18:16,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:18:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 06:18:16,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 06:18:16,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 06:18:16,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564659574] [2023-08-24 06:18:16,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564659574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 06:18:16,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 06:18:16,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 06:18:16,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574796681] [2023-08-24 06:18:16,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 06:18:16,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 06:18:16,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 06:18:16,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 06:18:16,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 06:18:16,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 106 [2023-08-24 06:18:16,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 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) [2023-08-24 06:18:16,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 06:18:16,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 106 [2023-08-24 06:18:16,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 06:18:16,310 INFO L124 PetriNetUnfolderBase]: 10/35 cut-off events. [2023-08-24 06:18:16,311 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-24 06:18:16,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 35 events. 10/35 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 4 based on Foata normal form. 4/39 useless extension candidates. Maximal degree in co-relation 73. Up to 20 conditions per place. [2023-08-24 06:18:16,311 INFO L140 encePairwiseOnDemand]: 102/106 looper letters, 11 selfloop transitions, 4 changer transitions 0/16 dead transitions. [2023-08-24 06:18:16,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 74 flow [2023-08-24 06:18:16,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 06:18:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 06:18:16,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2023-08-24 06:18:16,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48742138364779874 [2023-08-24 06:18:16,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 155 transitions. [2023-08-24 06:18:16,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 155 transitions. [2023-08-24 06:18:16,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 06:18:16,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 155 transitions. [2023-08-24 06:18:16,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2023-08-24 06:18:16,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2023-08-24 06:18:16,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2023-08-24 06:18:16,316 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 36 flow. Second operand 3 states and 155 transitions. [2023-08-24 06:18:16,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 74 flow [2023-08-24 06:18:16,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 06:18:16,317 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 42 flow [2023-08-24 06:18:16,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2023-08-24 06:18:16,318 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 3 predicate places. [2023-08-24 06:18:16,318 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 42 flow [2023-08-24 06:18:16,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 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) [2023-08-24 06:18:16,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:18:16,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:18:16,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 06:18:16,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:18:16,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:18:16,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1030544318, now seen corresponding path program 2 times [2023-08-24 06:18:16,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:18:16,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86497856] [2023-08-24 06:18:16,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:18:16,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:18:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 06:18:16,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 06:18:16,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 06:18:16,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86497856] [2023-08-24 06:18:16,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86497856] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 06:18:16,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 06:18:16,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 06:18:16,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450207487] [2023-08-24 06:18:16,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 06:18:16,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 06:18:16,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 06:18:16,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 06:18:16,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-24 06:18:16,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 106 [2023-08-24 06:18:16,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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) [2023-08-24 06:18:16,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 06:18:16,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 106 [2023-08-24 06:18:16,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 06:18:16,445 INFO L124 PetriNetUnfolderBase]: 1/18 cut-off events. [2023-08-24 06:18:16,445 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 06:18:16,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 18 events. 1/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 7/25 useless extension candidates. Maximal degree in co-relation 40. Up to 12 conditions per place. [2023-08-24 06:18:16,445 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 6 selfloop transitions, 6 changer transitions 1/14 dead transitions. [2023-08-24 06:18:16,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 14 transitions, 72 flow [2023-08-24 06:18:16,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 06:18:16,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 06:18:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-08-24 06:18:16,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41509433962264153 [2023-08-24 06:18:16,447 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 176 transitions. [2023-08-24 06:18:16,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 176 transitions. [2023-08-24 06:18:16,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 06:18:16,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 176 transitions. [2023-08-24 06:18:16,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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) [2023-08-24 06:18:16,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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) [2023-08-24 06:18:16,449 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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) [2023-08-24 06:18:16,449 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 42 flow. Second operand 4 states and 176 transitions. [2023-08-24 06:18:16,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 14 transitions, 72 flow [2023-08-24 06:18:16,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 14 transitions, 67 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 06:18:16,450 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 50 flow [2023-08-24 06:18:16,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2023-08-24 06:18:16,450 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 5 predicate places. [2023-08-24 06:18:16,451 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 50 flow [2023-08-24 06:18:16,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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) [2023-08-24 06:18:16,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:18:16,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:18:16,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 06:18:16,451 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:18:16,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:18:16,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1949969219, now seen corresponding path program 1 times [2023-08-24 06:18:16,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:18:16,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518556790] [2023-08-24 06:18:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:18:16,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:18:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 06:18:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 06:18:16,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 06:18:16,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518556790] [2023-08-24 06:18:16,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518556790] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 06:18:16,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 06:18:16,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 06:18:16,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294378221] [2023-08-24 06:18:16,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 06:18:16,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 06:18:16,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 06:18:16,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 06:18:16,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-24 06:18:16,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 106 [2023-08-24 06:18:16,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 13 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 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) [2023-08-24 06:18:16,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 06:18:16,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 106 [2023-08-24 06:18:16,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 06:18:16,540 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-08-24 06:18:16,540 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 06:18:16,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 12 events. 1/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 28. Up to 9 conditions per place. [2023-08-24 06:18:16,541 INFO L140 encePairwiseOnDemand]: 103/106 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-08-24 06:18:16,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 10 transitions, 59 flow [2023-08-24 06:18:16,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 06:18:16,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 06:18:16,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 171 transitions. [2023-08-24 06:18:16,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4033018867924528 [2023-08-24 06:18:16,542 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 171 transitions. [2023-08-24 06:18:16,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 171 transitions. [2023-08-24 06:18:16,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 06:18:16,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 171 transitions. [2023-08-24 06:18:16,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2023-08-24 06:18:16,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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) [2023-08-24 06:18:16,544 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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) [2023-08-24 06:18:16,544 INFO L175 Difference]: Start difference. First operand has 22 places, 13 transitions, 50 flow. Second operand 4 states and 171 transitions. [2023-08-24 06:18:16,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 10 transitions, 59 flow [2023-08-24 06:18:16,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 10 transitions, 52 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-24 06:18:16,544 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-08-24 06:18:16,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-08-24 06:18:16,545 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 1 predicate places. [2023-08-24 06:18:16,545 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-08-24 06:18:16,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 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) [2023-08-24 06:18:16,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-24 06:18:16,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-24 06:18:16,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 06:18:16,548 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-08-24 06:18:16,550 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 06:18:16,550 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 06:18:16,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 06:18:16 BasicIcfg [2023-08-24 06:18:16,552 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 06:18:16,553 INFO L158 Benchmark]: Toolchain (without parser) took 3511.70ms. Allocated memory was 371.2MB in the beginning and 446.7MB in the end (delta: 75.5MB). Free memory was 346.3MB in the beginning and 310.5MB in the end (delta: 35.8MB). Peak memory consumption was 113.2MB. Max. memory is 16.0GB. [2023-08-24 06:18:16,553 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 371.2MB. Free memory is still 347.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 06:18:16,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.23ms. Allocated memory is still 371.2MB. Free memory was 346.3MB in the beginning and 327.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 06:18:16,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.02ms. Allocated memory is still 371.2MB. Free memory was 327.5MB in the beginning and 325.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 06:18:16,554 INFO L158 Benchmark]: Boogie Preprocessor took 28.11ms. Allocated memory is still 371.2MB. Free memory was 325.4MB in the beginning and 324.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 06:18:16,554 INFO L158 Benchmark]: RCFGBuilder took 355.76ms. Allocated memory is still 371.2MB. Free memory was 323.7MB in the beginning and 311.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-24 06:18:16,554 INFO L158 Benchmark]: TraceAbstraction took 2764.83ms. Allocated memory was 371.2MB in the beginning and 446.7MB in the end (delta: 75.5MB). Free memory was 310.3MB in the beginning and 310.5MB in the end (delta: -257.5kB). Peak memory consumption was 77.6MB. Max. memory is 16.0GB. [2023-08-24 06:18:16,556 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 371.2MB. Free memory is still 347.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 317.23ms. Allocated memory is still 371.2MB. Free memory was 346.3MB in the beginning and 327.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.02ms. Allocated memory is still 371.2MB. Free memory was 327.5MB in the beginning and 325.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.11ms. Allocated memory is still 371.2MB. Free memory was 325.4MB in the beginning and 324.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 355.76ms. Allocated memory is still 371.2MB. Free memory was 323.7MB in the beginning and 311.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2764.83ms. Allocated memory was 371.2MB in the beginning and 446.7MB in the end (delta: 75.5MB). Free memory was 310.3MB in the beginning and 310.5MB in the end (delta: -257.5kB). Peak memory consumption was 77.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 58 PlacesBefore, 17 PlacesAfterwards, 54 TransitionsBefore, 13 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 882 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 367, independent: 251, independent conditional: 0, independent unconditional: 251, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 160, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 367, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 160, unknown conditional: 0, unknown unconditional: 160] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 77 locations, 2 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: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 3 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=3, InterpolantAutomatonStates: 14, 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, 0.3s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 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! [2023-08-24 06:18:16,574 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...