/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_31-traces-mine-vs-mutex_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:34:46,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:34:46,643 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 11:34:46,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:34:46,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:34:46,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:34:46,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:34:46,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:34:46,670 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:34:46,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:34:46,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:34:46,674 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:34:46,674 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:34:46,675 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:34:46,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:34:46,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:34:46,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:34:46,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:34:46,675 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:34:46,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:34:46,676 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:34:46,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:34:46,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:34:46,677 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:34:46,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:34:46,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:34:46,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:34:46,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:34:46,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:34:46,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:34:46,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:34:46,678 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:34:46,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:34:46,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:34:46,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:34:46,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:34:46,869 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:34:46,870 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:34:46,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2023-11-17 11:34:47,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:34:48,082 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:34:48,083 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2023-11-17 11:34:48,094 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cfce177/ded7b6d54d154723b026ebd5b7216b9c/FLAGfcfa9b130 [2023-11-17 11:34:48,107 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cfce177/ded7b6d54d154723b026ebd5b7216b9c [2023-11-17 11:34:48,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:34:48,110 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:34:48,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:34:48,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:34:48,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:34:48,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36bd9762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48, skipping insertion in model container [2023-11-17 11:34:48,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,151 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:34:48,243 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_31-traces-mine-vs-mutex_true.i[1097,1110] [2023-11-17 11:34:48,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:34:48,363 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:34:48,375 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_31-traces-mine-vs-mutex_true.i[1097,1110] [2023-11-17 11:34:48,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:34:48,432 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:34:48,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48 WrapperNode [2023-11-17 11:34:48,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:34:48,434 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:34:48,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:34:48,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:34:48,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,479 INFO L138 Inliner]: procedures = 163, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2023-11-17 11:34:48,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:34:48,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:34:48,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:34:48,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:34:48,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:34:48,508 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:34:48,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:34:48,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:34:48,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (1/1) ... [2023-11-17 11:34:48,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:34:48,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:48,539 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 11:34:48,559 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 11:34:48,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:34:48,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:34:48,564 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:34:48,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:34:48,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:34:48,565 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-17 11:34:48,565 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-17 11:34:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:34:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:34:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:34:48,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:34:48,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:34:48,567 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 11:34:48,665 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:34:48,666 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:34:48,772 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:34:48,864 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:34:48,865 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 11:34:48,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:34:48 BoogieIcfgContainer [2023-11-17 11:34:48,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:34:48,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:34:48,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:34:48,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:34:48,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:34:48" (1/3) ... [2023-11-17 11:34:48,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b30008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:34:48, skipping insertion in model container [2023-11-17 11:34:48,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:48" (2/3) ... [2023-11-17 11:34:48,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b30008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:34:48, skipping insertion in model container [2023-11-17 11:34:48,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:34:48" (3/3) ... [2023-11-17 11:34:48,872 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2023-11-17 11:34:48,883 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:34:48,883 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 11:34:48,883 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:34:48,915 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-17 11:34:48,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 36 transitions, 79 flow [2023-11-17 11:34:48,975 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2023-11-17 11:34:48,975 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:34:48,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 35 events. 1/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2023-11-17 11:34:48,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 36 transitions, 79 flow [2023-11-17 11:34:48,983 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 26 transitions, 55 flow [2023-11-17 11:34:48,990 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:34:49,003 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 26 transitions, 55 flow [2023-11-17 11:34:49,005 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 26 transitions, 55 flow [2023-11-17 11:34:49,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 26 transitions, 55 flow [2023-11-17 11:34:49,011 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2023-11-17 11:34:49,012 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:49,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 26 events. 0/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-17 11:34:49,012 INFO L119 LiptonReduction]: Number of co-enabled transitions 286 [2023-11-17 11:34:49,318 INFO L134 LiptonReduction]: Checked pairs total: 491 [2023-11-17 11:34:49,318 INFO L136 LiptonReduction]: Total number of compositions: 11 [2023-11-17 11:34:49,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:34:49,340 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;@657556e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:34:49,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-17 11:34:49,345 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:34:49,345 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-17 11:34:49,345 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:49,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:49,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:49,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 11:34:49,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:49,351 INFO L85 PathProgramCache]: Analyzing trace with hash 995231167, now seen corresponding path program 1 times [2023-11-17 11:34:49,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:49,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719018389] [2023-11-17 11:34:49,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:49,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:49,630 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 11:34:49,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:49,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719018389] [2023-11-17 11:34:49,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719018389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:49,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:49,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 11:34:49,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405544080] [2023-11-17 11:34:49,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:49,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:34:49,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:49,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:34:49,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:34:49,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 47 [2023-11-17 11:34:49,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 11:34:49,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:49,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 47 [2023-11-17 11:34:49,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:49,710 INFO L124 PetriNetUnfolderBase]: 37/89 cut-off events. [2023-11-17 11:34:49,710 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:49,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 212 event pairs, 13 based on Foata normal form. 3/92 useless extension candidates. Maximal degree in co-relation 174. Up to 66 conditions per place. [2023-11-17 11:34:49,713 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 17 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2023-11-17 11:34:49,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 79 flow [2023-11-17 11:34:49,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:34:49,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:34:49,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2023-11-17 11:34:49,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3971631205673759 [2023-11-17 11:34:49,722 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 56 transitions. [2023-11-17 11:34:49,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 56 transitions. [2023-11-17 11:34:49,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:49,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 56 transitions. [2023-11-17 11:34:49,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 11:34:49,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 11:34:49,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 11:34:49,731 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 33 flow. Second operand 3 states and 56 transitions. [2023-11-17 11:34:49,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 19 transitions, 79 flow [2023-11-17 11:34:49,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 19 transitions, 78 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:34:49,737 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 40 flow [2023-11-17 11:34:49,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2023-11-17 11:34:49,741 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2023-11-17 11:34:49,741 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 40 flow [2023-11-17 11:34:49,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 11:34:49,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:49,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:49,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:34:49,742 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 11:34:49,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash -944230110, now seen corresponding path program 1 times [2023-11-17 11:34:49,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:49,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346965624] [2023-11-17 11:34:49,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:49,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:49,900 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 11:34:49,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:49,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346965624] [2023-11-17 11:34:49,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346965624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:49,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:49,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:34:49,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754367364] [2023-11-17 11:34:49,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:49,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:34:49,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:49,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:34:49,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:34:49,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 47 [2023-11-17 11:34:49,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 40 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 11:34:49,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:49,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 47 [2023-11-17 11:34:49,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:49,947 INFO L124 PetriNetUnfolderBase]: 16/49 cut-off events. [2023-11-17 11:34:49,947 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:49,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 49 events. 16/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 2 based on Foata normal form. 9/58 useless extension candidates. Maximal degree in co-relation 101. Up to 40 conditions per place. [2023-11-17 11:34:49,948 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 13 selfloop transitions, 4 changer transitions 0/17 dead transitions. [2023-11-17 11:34:49,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 78 flow [2023-11-17 11:34:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:34:49,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:34:49,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2023-11-17 11:34:49,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35638297872340424 [2023-11-17 11:34:49,951 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 67 transitions. [2023-11-17 11:34:49,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 67 transitions. [2023-11-17 11:34:49,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:49,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 67 transitions. [2023-11-17 11:34:49,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 11:34:49,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 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 11:34:49,958 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 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 11:34:49,958 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 40 flow. Second operand 4 states and 67 transitions. [2023-11-17 11:34:49,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 78 flow [2023-11-17 11:34:49,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:34:49,959 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 44 flow [2023-11-17 11:34:49,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=44, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-11-17 11:34:49,960 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2023-11-17 11:34:49,960 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 44 flow [2023-11-17 11:34:49,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 11:34:49,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:49,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:49,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 11:34:49,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 11:34:49,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:49,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1332906862, now seen corresponding path program 1 times [2023-11-17 11:34:49,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:49,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358087288] [2023-11-17 11:34:49,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:49,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:50,115 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 11:34:50,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:50,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358087288] [2023-11-17 11:34:50,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358087288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:50,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:50,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:34:50,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34369517] [2023-11-17 11:34:50,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:50,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:34:50,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:50,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:34:50,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:34:50,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 47 [2023-11-17 11:34:50,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 11:34:50,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:50,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 47 [2023-11-17 11:34:50,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:50,154 INFO L124 PetriNetUnfolderBase]: 6/35 cut-off events. [2023-11-17 11:34:50,155 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-17 11:34:50,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 35 events. 6/35 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 4 based on Foata normal form. 6/41 useless extension candidates. Maximal degree in co-relation 77. Up to 18 conditions per place. [2023-11-17 11:34:50,155 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 9 selfloop transitions, 8 changer transitions 0/17 dead transitions. [2023-11-17 11:34:50,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 86 flow [2023-11-17 11:34:50,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:34:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:34:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2023-11-17 11:34:50,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3617021276595745 [2023-11-17 11:34:50,157 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 68 transitions. [2023-11-17 11:34:50,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 68 transitions. [2023-11-17 11:34:50,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:50,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 68 transitions. [2023-11-17 11:34:50,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 11:34:50,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 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 11:34:50,160 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 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 11:34:50,160 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 44 flow. Second operand 4 states and 68 transitions. [2023-11-17 11:34:50,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 86 flow [2023-11-17 11:34:50,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:34:50,162 INFO L231 Difference]: Finished difference. Result has 23 places, 15 transitions, 56 flow [2023-11-17 11:34:50,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=23, PETRI_TRANSITIONS=15} [2023-11-17 11:34:50,163 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 4 predicate places. [2023-11-17 11:34:50,163 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 15 transitions, 56 flow [2023-11-17 11:34:50,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 11:34:50,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:50,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:50,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 11:34:50,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 11:34:50,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:50,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1679938608, now seen corresponding path program 2 times [2023-11-17 11:34:50,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:50,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363529355] [2023-11-17 11:34:50,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:50,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:50,268 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 11:34:50,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:50,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363529355] [2023-11-17 11:34:50,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363529355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:50,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:50,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:34:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201355068] [2023-11-17 11:34:50,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:50,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:34:50,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:50,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:34:50,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:34:50,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 47 [2023-11-17 11:34:50,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 15 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 11:34:50,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:50,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 47 [2023-11-17 11:34:50,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:50,304 INFO L124 PetriNetUnfolderBase]: 6/34 cut-off events. [2023-11-17 11:34:50,305 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-17 11:34:50,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 34 events. 6/34 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 5 based on Foata normal form. 1/35 useless extension candidates. Maximal degree in co-relation 89. Up to 26 conditions per place. [2023-11-17 11:34:50,305 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2023-11-17 11:34:50,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 16 transitions, 92 flow [2023-11-17 11:34:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:34:50,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:34:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 65 transitions. [2023-11-17 11:34:50,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34574468085106386 [2023-11-17 11:34:50,308 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 65 transitions. [2023-11-17 11:34:50,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 65 transitions. [2023-11-17 11:34:50,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:50,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 65 transitions. [2023-11-17 11:34:50,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 11:34:50,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 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 11:34:50,310 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 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 11:34:50,310 INFO L175 Difference]: Start difference. First operand has 23 places, 15 transitions, 56 flow. Second operand 4 states and 65 transitions. [2023-11-17 11:34:50,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 16 transitions, 92 flow [2023-11-17 11:34:50,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 11:34:50,311 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-11-17 11:34:50,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-11-17 11:34:50,312 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2023-11-17 11:34:50,312 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-11-17 11:34:50,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 11:34:50,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-17 11:34:50,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-11-17 11:34:50,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 11:34:50,315 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-17 11:34:50,317 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:34:50,317 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:34:50,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:34:50 BasicIcfg [2023-11-17 11:34:50,323 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:34:50,323 INFO L158 Benchmark]: Toolchain (without parser) took 2213.33ms. Allocated memory is still 298.8MB. Free memory was 252.2MB in the beginning and 217.9MB in the end (delta: 34.3MB). Peak memory consumption was 35.3MB. Max. memory is 8.0GB. [2023-11-17 11:34:50,323 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory was 130.5MB in the beginning and 130.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:34:50,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.36ms. Allocated memory is still 298.8MB. Free memory was 251.6MB in the beginning and 232.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-11-17 11:34:50,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.43ms. Allocated memory is still 298.8MB. Free memory was 232.8MB in the beginning and 230.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 11:34:50,324 INFO L158 Benchmark]: Boogie Preprocessor took 28.07ms. Allocated memory is still 298.8MB. Free memory was 230.7MB in the beginning and 229.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 11:34:50,327 INFO L158 Benchmark]: RCFGBuilder took 357.86ms. Allocated memory is still 298.8MB. Free memory was 229.1MB in the beginning and 204.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-11-17 11:34:50,327 INFO L158 Benchmark]: TraceAbstraction took 1455.32ms. Allocated memory is still 298.8MB. Free memory was 203.9MB in the beginning and 217.9MB in the end (delta: -13.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:34:50,328 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory was 130.5MB in the beginning and 130.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 322.36ms. Allocated memory is still 298.8MB. Free memory was 251.6MB in the beginning and 232.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.43ms. Allocated memory is still 298.8MB. Free memory was 232.8MB in the beginning and 230.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.07ms. Allocated memory is still 298.8MB. Free memory was 230.7MB in the beginning and 229.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 357.86ms. Allocated memory is still 298.8MB. Free memory was 229.1MB in the beginning and 204.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1455.32ms. Allocated memory is still 298.8MB. Free memory was 203.9MB in the beginning and 217.9MB in the end (delta: -13.9MB). 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, 30 PlacesBefore, 19 PlacesAfterwards, 26 TransitionsBefore, 15 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 491 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 257, independent: 208, independent conditional: 0, independent unconditional: 208, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 194, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 194, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 98, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 257, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 194, unknown conditional: 0, unknown unconditional: 194] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, 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, 51 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 0 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 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 11:34:50,347 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...