/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:35:10,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:35:10,824 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2023-11-17 11:35:10,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:35:10,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:35:10,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:35:10,850 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:35:10,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:35:10,851 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:35:10,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:35:10,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:35:10,854 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:35:10,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:35:10,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:35:10,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:35:10,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:35:10,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:35:10,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:35:10,856 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:35:10,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:35:10,856 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:35:10,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:35:10,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:35:10,857 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:35:10,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:35:10,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:35:10,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:35:10,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:35:10,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:35:10,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:35:10,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:35:10,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:35:10,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:35:11,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:35:11,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:35:11,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:35:11,091 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:35:11,092 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:35:11,093 INFO L431 ainManager$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 [2023-11-17 11:35:12,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:35:12,306 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:35:12,306 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 [2023-11-17 11:35:12,320 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b27acc7/f280bb84788b436a8e3392cf40141d22/FLAG7f2a1e089 [2023-11-17 11:35:12,336 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b27acc7/f280bb84788b436a8e3392cf40141d22 [2023-11-17 11:35:12,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:35:12,339 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:35:12,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:35:12,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:35:12,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:35:12,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb527c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12, skipping insertion in model container [2023-11-17 11:35:12,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:35:12,498 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] [2023-11-17 11:35:12,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:35:12,612 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:35:12,620 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] [2023-11-17 11:35:12,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:35:12,667 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:35:12,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12 WrapperNode [2023-11-17 11:35:12,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:35:12,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:35:12,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:35:12,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:35:12,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,700 INFO L138 Inliner]: procedures = 163, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-11-17 11:35:12,700 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:35:12,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:35:12,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:35:12,701 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:35:12,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,714 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:35:12,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:35:12,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:35:12,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:35:12,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (1/1) ... [2023-11-17 11:35:12,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:35:12,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:35:12,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 11:35:12,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 11:35:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:35:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:35:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:35:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:35:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-17 11:35:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-17 11:35:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:35:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:35:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:35:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:35:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:35:12,770 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 11:35:12,862 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:35:12,863 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:35:13,014 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:35:13,121 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:35:13,121 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 11:35:13,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:35:13 BoogieIcfgContainer [2023-11-17 11:35:13,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:35:13,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:35:13,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:35:13,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:35:13,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:35:12" (1/3) ... [2023-11-17 11:35:13,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0f7bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:35:13, skipping insertion in model container [2023-11-17 11:35:13,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:35:12" (2/3) ... [2023-11-17 11:35:13,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0f7bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:35:13, skipping insertion in model container [2023-11-17 11:35:13,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:35:13" (3/3) ... [2023-11-17 11:35:13,128 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-11-17 11:35:13,150 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:35:13,151 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 11:35:13,151 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:35:13,179 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-17 11:35:13,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 64 flow [2023-11-17 11:35:13,232 INFO L124 PetriNetUnfolderBase]: 1/29 cut-off events. [2023-11-17 11:35:13,232 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:35:13,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 29 events. 1/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2023-11-17 11:35:13,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 30 transitions, 64 flow [2023-11-17 11:35:13,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 22 transitions, 47 flow [2023-11-17 11:35:13,240 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:35:13,250 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 22 transitions, 47 flow [2023-11-17 11:35:13,251 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 22 transitions, 47 flow [2023-11-17 11:35:13,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 47 flow [2023-11-17 11:35:13,257 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-17 11:35:13,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:35:13,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-17 11:35:13,258 INFO L119 LiptonReduction]: Number of co-enabled transitions 198 [2023-11-17 11:35:13,585 INFO L134 LiptonReduction]: Checked pairs total: 358 [2023-11-17 11:35:13,585 INFO L136 LiptonReduction]: Total number of compositions: 9 [2023-11-17 11:35:13,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:35:13,607 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;@29f9350d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:35:13,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-17 11:35:13,612 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:35:13,613 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-11-17 11:35:13,613 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:35:13,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:13,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:13,614 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 11:35:13,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:13,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1835524918, now seen corresponding path program 1 times [2023-11-17 11:35:13,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:13,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189479485] [2023-11-17 11:35:13,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:13,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:13,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:13,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189479485] [2023-11-17 11:35:13,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189479485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:13,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:13,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:35:13,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066014870] [2023-11-17 11:35:13,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:13,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:35:13,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:13,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:35:13,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:35:13,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2023-11-17 11:35:13,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:13,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:13,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2023-11-17 11:35:13,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:14,000 INFO L124 PetriNetUnfolderBase]: 30/79 cut-off events. [2023-11-17 11:35:14,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:35:14,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 79 events. 30/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 214 event pairs, 12 based on Foata normal form. 6/85 useless extension candidates. Maximal degree in co-relation 154. Up to 50 conditions per place. [2023-11-17 11:35:14,002 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 15 selfloop transitions, 2 changer transitions 3/20 dead transitions. [2023-11-17 11:35:14,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 20 transitions, 83 flow [2023-11-17 11:35:14,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:35:14,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:35:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2023-11-17 11:35:14,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4358974358974359 [2023-11-17 11:35:14,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 51 transitions. [2023-11-17 11:35:14,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 51 transitions. [2023-11-17 11:35:14,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:14,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 51 transitions. [2023-11-17 11:35:14,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,027 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 29 flow. Second operand 3 states and 51 transitions. [2023-11-17 11:35:14,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 20 transitions, 83 flow [2023-11-17 11:35:14,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 20 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:35:14,030 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 36 flow [2023-11-17 11:35:14,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, 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} [2023-11-17 11:35:14,034 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 2 predicate places. [2023-11-17 11:35:14,034 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 36 flow [2023-11-17 11:35:14,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:14,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:14,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:35:14,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 11:35:14,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash 501283123, now seen corresponding path program 1 times [2023-11-17 11:35:14,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:14,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954009815] [2023-11-17 11:35:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:14,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:14,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:14,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954009815] [2023-11-17 11:35:14,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954009815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:14,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:14,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:35:14,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870335801] [2023-11-17 11:35:14,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:14,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:35:14,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:14,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:35:14,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:35:14,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2023-11-17 11:35:14,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:14,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2023-11-17 11:35:14,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:14,139 INFO L124 PetriNetUnfolderBase]: 11/36 cut-off events. [2023-11-17 11:35:14,139 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-17 11:35:14,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 36 events. 11/36 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 4 based on Foata normal form. 4/40 useless extension candidates. Maximal degree in co-relation 77. Up to 20 conditions per place. [2023-11-17 11:35:14,140 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 12 selfloop transitions, 4 changer transitions 0/16 dead transitions. [2023-11-17 11:35:14,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 76 flow [2023-11-17 11:35:14,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:35:14,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:35:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2023-11-17 11:35:14,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41025641025641024 [2023-11-17 11:35:14,142 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 48 transitions. [2023-11-17 11:35:14,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 48 transitions. [2023-11-17 11:35:14,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:14,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 48 transitions. [2023-11-17 11:35:14,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,146 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 36 flow. Second operand 3 states and 48 transitions. [2023-11-17 11:35:14,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 76 flow [2023-11-17 11:35:14,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:35:14,148 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 42 flow [2023-11-17 11:35:14,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, 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} [2023-11-17 11:35:14,149 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 3 predicate places. [2023-11-17 11:35:14,149 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 42 flow [2023-11-17 11:35:14,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:14,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:14,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 11:35:14,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 11:35:14,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:14,151 INFO L85 PathProgramCache]: Analyzing trace with hash -816824477, now seen corresponding path program 2 times [2023-11-17 11:35:14,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:14,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683319330] [2023-11-17 11:35:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:14,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:14,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:14,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683319330] [2023-11-17 11:35:14,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683319330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:14,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:14,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:35:14,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400403011] [2023-11-17 11:35:14,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:14,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:35:14,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:14,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:35:14,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:35:14,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2023-11-17 11:35:14,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:14,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2023-11-17 11:35:14,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:14,339 INFO L124 PetriNetUnfolderBase]: 1/18 cut-off events. [2023-11-17 11:35:14,340 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:35:14,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 18 events. 1/18 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 8/26 useless extension candidates. Maximal degree in co-relation 41. Up to 13 conditions per place. [2023-11-17 11:35:14,340 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 7 selfloop transitions, 6 changer transitions 1/14 dead transitions. [2023-11-17 11:35:14,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 14 transitions, 74 flow [2023-11-17 11:35:14,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:35:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:35:14,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 57 transitions. [2023-11-17 11:35:14,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36538461538461536 [2023-11-17 11:35:14,343 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 57 transitions. [2023-11-17 11:35:14,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 57 transitions. [2023-11-17 11:35:14,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:14,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 57 transitions. [2023-11-17 11:35:14,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,346 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,346 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 42 flow. Second operand 4 states and 57 transitions. [2023-11-17 11:35:14,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 14 transitions, 74 flow [2023-11-17 11:35:14,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 14 transitions, 69 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:35:14,348 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 50 flow [2023-11-17 11:35:14,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, 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} [2023-11-17 11:35:14,349 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 5 predicate places. [2023-11-17 11:35:14,350 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 50 flow [2023-11-17 11:35:14,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:14,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:14,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 11:35:14,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 11:35:14,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:14,351 INFO L85 PathProgramCache]: Analyzing trace with hash 950276427, now seen corresponding path program 1 times [2023-11-17 11:35:14,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:14,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352655937] [2023-11-17 11:35:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:14,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:14,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:14,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:14,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352655937] [2023-11-17 11:35:14,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352655937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:14,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:14,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:35:14,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179868721] [2023-11-17 11:35:14,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:14,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:35:14,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:14,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:35:14,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:35:14,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2023-11-17 11:35:14,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 13 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:14,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2023-11-17 11:35:14,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:14,542 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-11-17 11:35:14,543 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 11:35:14,543 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 8 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. [2023-11-17 11:35:14,543 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-11-17 11:35:14,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 10 transitions, 59 flow [2023-11-17 11:35:14,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:35:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:35:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 51 transitions. [2023-11-17 11:35:14,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3269230769230769 [2023-11-17 11:35:14,544 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 51 transitions. [2023-11-17 11:35:14,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 51 transitions. [2023-11-17 11:35:14,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:14,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 51 transitions. [2023-11-17 11:35:14,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,545 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,545 INFO L175 Difference]: Start difference. First operand has 22 places, 13 transitions, 50 flow. Second operand 4 states and 51 transitions. [2023-11-17 11:35:14,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 10 transitions, 59 flow [2023-11-17 11:35:14,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 10 transitions, 52 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 11:35:14,546 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-11-17 11:35:14,546 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, 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} [2023-11-17 11:35:14,546 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 1 predicate places. [2023-11-17 11:35:14,546 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-11-17 11:35:14,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:35:14,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-17 11:35:14,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-11-17 11:35:14,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 11:35:14,549 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-17 11:35:14,551 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:35:14,551 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:35:14,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:35:14 BasicIcfg [2023-11-17 11:35:14,553 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:35:14,554 INFO L158 Benchmark]: Toolchain (without parser) took 2214.90ms. Allocated memory was 211.8MB in the beginning and 257.9MB in the end (delta: 46.1MB). Free memory was 163.0MB in the beginning and 200.7MB in the end (delta: -37.7MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. [2023-11-17 11:35:14,554 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 211.8MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:35:14,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.49ms. Allocated memory is still 211.8MB. Free memory was 162.5MB in the beginning and 143.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-11-17 11:35:14,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.41ms. Allocated memory is still 211.8MB. Free memory was 143.7MB in the beginning and 141.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 11:35:14,555 INFO L158 Benchmark]: Boogie Preprocessor took 17.79ms. Allocated memory is still 211.8MB. Free memory was 141.6MB in the beginning and 140.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 11:35:14,555 INFO L158 Benchmark]: RCFGBuilder took 403.09ms. Allocated memory is still 211.8MB. Free memory was 140.0MB in the beginning and 118.0MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-11-17 11:35:14,556 INFO L158 Benchmark]: TraceAbstraction took 1429.57ms. Allocated memory was 211.8MB in the beginning and 257.9MB in the end (delta: 46.1MB). Free memory was 117.5MB in the beginning and 200.7MB in the end (delta: -83.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:35:14,565 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 211.8MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 326.49ms. Allocated memory is still 211.8MB. Free memory was 162.5MB in the beginning and 143.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.41ms. Allocated memory is still 211.8MB. Free memory was 143.7MB in the beginning and 141.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.79ms. Allocated memory is still 211.8MB. Free memory was 141.6MB in the beginning and 140.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 403.09ms. Allocated memory is still 211.8MB. Free memory was 140.0MB in the beginning and 118.0MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1429.57ms. Allocated memory was 211.8MB in the beginning and 257.9MB in the end (delta: 46.1MB). Free memory was 117.5MB in the beginning and 200.7MB in the end (delta: -83.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 26 PlacesBefore, 17 PlacesAfterwards, 22 TransitionsBefore, 13 TransitionsAfterwards, 198 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 358 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 208, independent: 166, independent conditional: 0, independent unconditional: 166, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 143, independent: 120, independent conditional: 0, independent unconditional: 120, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 143, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 208, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 143, unknown conditional: 0, unknown unconditional: 143] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: 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 3 procedures, 41 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: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 0 mSDtfsCounter, 86 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, 0.5s 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! [2023-11-17 11:35:14,596 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...