./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label01.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 4a390ef5
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label01.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d6090139f17d215360e170ecc95bb73008b0f6956bdca2966cee2f9efad851e4
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-4a390ef-m
[2024-10-23 21:19:09,404 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-23 21:19:09,482 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-10-23 21:19:09,489 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-23 21:19:09,490 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-23 21:19:09,510 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-23 21:19:09,511 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-23 21:19:09,511 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-23 21:19:09,512 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-23 21:19:09,512 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-23 21:19:09,513 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-23 21:19:09,513 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-23 21:19:09,514 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-23 21:19:09,514 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-23 21:19:09,514 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-23 21:19:09,515 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-23 21:19:09,515 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-23 21:19:09,515 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-10-23 21:19:09,516 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-23 21:19:09,516 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-10-23 21:19:09,516 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-23 21:19:09,519 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-23 21:19:09,520 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-23 21:19:09,520 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-23 21:19:09,520 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-23 21:19:09,520 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-10-23 21:19:09,521 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-23 21:19:09,521 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-23 21:19:09,521 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-23 21:19:09,521 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-23 21:19:09,522 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-23 21:19:09,522 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-23 21:19:09,522 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-23 21:19:09,522 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-23 21:19:09,523 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-23 21:19:09,523 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-23 21:19:09,525 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-23 21:19:09,525 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-23 21:19:09,526 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-23 21:19:09,526 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-23 21:19:09,526 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-23 21:19:09,526 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-23 21:19:09,527 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
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.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6090139f17d215360e170ecc95bb73008b0f6956bdca2966cee2f9efad851e4
[2024-10-23 21:19:09,769 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-23 21:19:09,798 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-23 21:19:09,801 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-23 21:19:09,802 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-23 21:19:09,803 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-23 21:19:09,804 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label01.c
[2024-10-23 21:19:11,245 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-23 21:19:11,580 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-23 21:19:11,581 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label01.c
[2024-10-23 21:19:11,604 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2d6c982/9254d3d86e74472a9627c822f70db503/FLAG04821d9b2
[2024-10-23 21:19:11,621 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2d6c982/9254d3d86e74472a9627c822f70db503
[2024-10-23 21:19:11,624 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-23 21:19:11,626 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-23 21:19:11,628 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-23 21:19:11,628 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-23 21:19:11,634 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-23 21:19:11,634 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:19:11" (1/1) ...
[2024-10-23 21:19:11,635 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0057f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:11, skipping insertion in model container
[2024-10-23 21:19:11,636 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:19:11" (1/1) ...
[2024-10-23 21:19:11,704 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-23 21:19:11,926 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label01.c[5470,5483]
[2024-10-23 21:19:12,308 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-23 21:19:12,319 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-23 21:19:12,348 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label01.c[5470,5483]
[2024-10-23 21:19:12,532 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-23 21:19:12,553 INFO  L204         MainTranslator]: Completed translation
[2024-10-23 21:19:12,554 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12 WrapperNode
[2024-10-23 21:19:12,554 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-23 21:19:12,555 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-23 21:19:12,555 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-23 21:19:12,555 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-23 21:19:12,562 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:12,596 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:12,748 INFO  L138                Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760
[2024-10-23 21:19:12,748 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-23 21:19:12,750 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-23 21:19:12,750 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-23 21:19:12,750 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-23 21:19:12,760 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:12,760 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:12,785 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:12,959 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-10-23 21:19:12,963 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:12,964 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:13,144 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:13,155 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:13,185 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:13,194 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:13,224 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-23 21:19:13,225 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-23 21:19:13,226 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-23 21:19:13,226 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-23 21:19:13,227 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (1/1) ...
[2024-10-23 21:19:13,232 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-23 21:19:13,243 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-23 21:19:13,259 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-10-23 21:19:13,262 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-10-23 21:19:13,306 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-23 21:19:13,306 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-23 21:19:13,306 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-23 21:19:13,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-23 21:19:13,378 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-23 21:19:13,381 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-23 21:19:15,739 INFO  L?                        ?]: Removed 246 outVars from TransFormulas that were not future-live.
[2024-10-23 21:19:15,739 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-23 21:19:15,786 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-23 21:19:15,786 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-23 21:19:15,787 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:19:15 BoogieIcfgContainer
[2024-10-23 21:19:15,787 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-23 21:19:15,789 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-23 21:19:15,789 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-23 21:19:15,792 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-23 21:19:15,792 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:19:11" (1/3) ...
[2024-10-23 21:19:15,793 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3860a50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:19:15, skipping insertion in model container
[2024-10-23 21:19:15,794 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:19:12" (2/3) ...
[2024-10-23 21:19:15,794 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3860a50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:19:15, skipping insertion in model container
[2024-10-23 21:19:15,795 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:19:15" (3/3) ...
[2024-10-23 21:19:15,796 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem15_label01.c
[2024-10-23 21:19:15,814 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-23 21:19:15,814 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-23 21:19:15,886 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-23 21:19:15,893 INFO  L333      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, 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;@6b64ff99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-23 21:19:15,894 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-23 21:19:15,900 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 362 states, 360 states have (on average 1.9111111111111112) internal successors, (688), 361 states have internal predecessors, (688), 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)
[2024-10-23 21:19:15,907 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2024-10-23 21:19:15,907 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:15,908 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:15,909 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:15,913 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:15,913 INFO  L85        PathProgramCache]: Analyzing trace with hash -301287392, now seen corresponding path program 1 times
[2024-10-23 21:19:15,919 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:15,919 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568531804]
[2024-10-23 21:19:15,919 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:15,920 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:16,009 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:16,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:16,081 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:16,081 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568531804]
[2024-10-23 21:19:16,081 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568531804] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:16,082 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:16,082 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-23 21:19:16,083 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691330474]
[2024-10-23 21:19:16,084 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:16,093 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-10-23 21:19:16,093 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:16,117 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-10-23 21:19:16,118 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-10-23 21:19:16,123 INFO  L87              Difference]: Start difference. First operand  has 362 states, 360 states have (on average 1.9111111111111112) internal successors, (688), 361 states have internal predecessors, (688), 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) Second operand  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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)
[2024-10-23 21:19:16,184 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:16,184 INFO  L93              Difference]: Finished difference Result 723 states and 1375 transitions.
[2024-10-23 21:19:16,189 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-23 21:19:16,190 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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) Word has length 43
[2024-10-23 21:19:16,190 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:16,201 INFO  L225             Difference]: With dead ends: 723
[2024-10-23 21:19:16,203 INFO  L226             Difference]: Without dead ends: 360
[2024-10-23 21:19:16,207 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-10-23 21:19:16,213 INFO  L432           NwaCegarLoop]: 623 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:16,214 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 623 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-23 21:19:16,231 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 360 states.
[2024-10-23 21:19:16,258 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360.
[2024-10-23 21:19:16,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 360 states, 359 states have (on average 1.7353760445682451) internal successors, (623), 359 states have internal predecessors, (623), 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)
[2024-10-23 21:19:16,262 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 623 transitions.
[2024-10-23 21:19:16,263 INFO  L78                 Accepts]: Start accepts. Automaton has 360 states and 623 transitions. Word has length 43
[2024-10-23 21:19:16,264 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:16,264 INFO  L471      AbstractCegarLoop]: Abstraction has 360 states and 623 transitions.
[2024-10-23 21:19:16,264 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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)
[2024-10-23 21:19:16,264 INFO  L276                IsEmpty]: Start isEmpty. Operand 360 states and 623 transitions.
[2024-10-23 21:19:16,265 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2024-10-23 21:19:16,265 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:16,266 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:16,266 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-23 21:19:16,266 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:16,267 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:16,267 INFO  L85        PathProgramCache]: Analyzing trace with hash 976744008, now seen corresponding path program 1 times
[2024-10-23 21:19:16,267 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:16,267 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052027699]
[2024-10-23 21:19:16,268 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:16,268 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:16,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:16,472 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:16,472 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:16,473 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052027699]
[2024-10-23 21:19:16,473 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052027699] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:16,473 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:16,475 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-23 21:19:16,476 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749139789]
[2024-10-23 21:19:16,476 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:16,477 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:19:16,477 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:16,478 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:19:16,479 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:16,479 INFO  L87              Difference]: Start difference. First operand 360 states and 623 transitions. Second operand  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 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)
[2024-10-23 21:19:18,156 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:18,156 INFO  L93              Difference]: Finished difference Result 1023 states and 1787 transitions.
[2024-10-23 21:19:18,157 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:19:18,157 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 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) Word has length 43
[2024-10-23 21:19:18,158 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:18,161 INFO  L225             Difference]: With dead ends: 1023
[2024-10-23 21:19:18,161 INFO  L226             Difference]: Without dead ends: 664
[2024-10-23 21:19:18,164 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:18,165 INFO  L432           NwaCegarLoop]: 270 mSDtfsCounter, 273 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:18,165 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 316 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-10-23 21:19:18,167 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 664 states.
[2024-10-23 21:19:18,188 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 662.
[2024-10-23 21:19:18,189 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 662 states, 661 states have (on average 1.4826021180030258) internal successors, (980), 661 states have internal predecessors, (980), 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)
[2024-10-23 21:19:18,191 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 980 transitions.
[2024-10-23 21:19:18,191 INFO  L78                 Accepts]: Start accepts. Automaton has 662 states and 980 transitions. Word has length 43
[2024-10-23 21:19:18,191 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:18,192 INFO  L471      AbstractCegarLoop]: Abstraction has 662 states and 980 transitions.
[2024-10-23 21:19:18,192 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 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)
[2024-10-23 21:19:18,192 INFO  L276                IsEmpty]: Start isEmpty. Operand 662 states and 980 transitions.
[2024-10-23 21:19:18,195 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-10-23 21:19:18,195 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:18,195 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:18,195 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-23 21:19:18,195 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:18,196 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:18,196 INFO  L85        PathProgramCache]: Analyzing trace with hash -2090438185, now seen corresponding path program 1 times
[2024-10-23 21:19:18,196 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:18,196 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664713164]
[2024-10-23 21:19:18,196 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:18,197 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:18,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:18,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:18,576 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:18,576 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664713164]
[2024-10-23 21:19:18,576 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664713164] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:18,576 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:18,577 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-23 21:19:18,577 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345080937]
[2024-10-23 21:19:18,577 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:18,578 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:19:18,578 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:18,578 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:19:18,579 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:18,579 INFO  L87              Difference]: Start difference. First operand 662 states and 980 transitions. Second operand  has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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)
[2024-10-23 21:19:19,691 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:19,691 INFO  L93              Difference]: Finished difference Result 1623 states and 2314 transitions.
[2024-10-23 21:19:19,691 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:19:19,692 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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) Word has length 108
[2024-10-23 21:19:19,692 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:19,695 INFO  L225             Difference]: With dead ends: 1623
[2024-10-23 21:19:19,695 INFO  L226             Difference]: Without dead ends: 962
[2024-10-23 21:19:19,696 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:19,697 INFO  L432           NwaCegarLoop]: 297 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:19,698 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 335 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-10-23 21:19:19,700 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 962 states.
[2024-10-23 21:19:19,717 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962.
[2024-10-23 21:19:19,718 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 962 states, 961 states have (on average 1.3631633714880333) internal successors, (1310), 961 states have internal predecessors, (1310), 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)
[2024-10-23 21:19:19,721 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1310 transitions.
[2024-10-23 21:19:19,721 INFO  L78                 Accepts]: Start accepts. Automaton has 962 states and 1310 transitions. Word has length 108
[2024-10-23 21:19:19,722 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:19,722 INFO  L471      AbstractCegarLoop]: Abstraction has 962 states and 1310 transitions.
[2024-10-23 21:19:19,722 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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)
[2024-10-23 21:19:19,722 INFO  L276                IsEmpty]: Start isEmpty. Operand 962 states and 1310 transitions.
[2024-10-23 21:19:19,725 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-10-23 21:19:19,725 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:19,725 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:19,726 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-23 21:19:19,726 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:19,726 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:19,727 INFO  L85        PathProgramCache]: Analyzing trace with hash -1940072078, now seen corresponding path program 1 times
[2024-10-23 21:19:19,727 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:19,727 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885744989]
[2024-10-23 21:19:19,727 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:19,727 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:19,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:19,890 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:19,891 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:19,891 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885744989]
[2024-10-23 21:19:19,891 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885744989] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:19,891 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:19,892 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-23 21:19:19,892 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141230431]
[2024-10-23 21:19:19,892 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:19,892 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:19:19,893 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:19,893 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:19:19,894 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:19,894 INFO  L87              Difference]: Start difference. First operand 962 states and 1310 transitions. Second operand  has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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)
[2024-10-23 21:19:21,548 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:21,548 INFO  L93              Difference]: Finished difference Result 2228 states and 3185 transitions.
[2024-10-23 21:19:21,549 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:19:21,550 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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) Word has length 113
[2024-10-23 21:19:21,550 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:21,556 INFO  L225             Difference]: With dead ends: 2228
[2024-10-23 21:19:21,556 INFO  L226             Difference]: Without dead ends: 1566
[2024-10-23 21:19:21,558 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:21,559 INFO  L432           NwaCegarLoop]: 276 mSDtfsCounter, 258 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:21,559 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 314 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-10-23 21:19:21,561 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1566 states.
[2024-10-23 21:19:21,584 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1265.
[2024-10-23 21:19:21,586 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1265 states, 1264 states have (on average 1.3053797468354431) internal successors, (1650), 1264 states have internal predecessors, (1650), 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)
[2024-10-23 21:19:21,590 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1650 transitions.
[2024-10-23 21:19:21,591 INFO  L78                 Accepts]: Start accepts. Automaton has 1265 states and 1650 transitions. Word has length 113
[2024-10-23 21:19:21,591 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:21,591 INFO  L471      AbstractCegarLoop]: Abstraction has 1265 states and 1650 transitions.
[2024-10-23 21:19:21,592 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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)
[2024-10-23 21:19:21,592 INFO  L276                IsEmpty]: Start isEmpty. Operand 1265 states and 1650 transitions.
[2024-10-23 21:19:21,594 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-10-23 21:19:21,594 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:21,595 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:21,595 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-23 21:19:21,595 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:21,597 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:21,597 INFO  L85        PathProgramCache]: Analyzing trace with hash 1760389672, now seen corresponding path program 1 times
[2024-10-23 21:19:21,597 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:21,598 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469168021]
[2024-10-23 21:19:21,598 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:21,598 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:21,647 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:21,800 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:21,800 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:21,800 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469168021]
[2024-10-23 21:19:21,800 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469168021] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:21,801 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:21,801 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:19:21,801 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138157330]
[2024-10-23 21:19:21,801 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:21,801 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-23 21:19:21,802 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:21,802 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-23 21:19:21,803 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-10-23 21:19:21,803 INFO  L87              Difference]: Start difference. First operand 1265 states and 1650 transitions. Second operand  has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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)
[2024-10-23 21:19:25,108 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:25,108 INFO  L93              Difference]: Finished difference Result 4667 states and 6172 transitions.
[2024-10-23 21:19:25,109 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-23 21:19:25,109 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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) Word has length 134
[2024-10-23 21:19:25,109 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:25,120 INFO  L225             Difference]: With dead ends: 4667
[2024-10-23 21:19:25,120 INFO  L226             Difference]: Without dead ends: 3403
[2024-10-23 21:19:25,122 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-10-23 21:19:25,123 INFO  L432           NwaCegarLoop]: 289 mSDtfsCounter, 517 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 2278 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:25,123 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 374 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2278 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-10-23 21:19:25,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3403 states.
[2024-10-23 21:19:25,168 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 3380.
[2024-10-23 21:19:25,172 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3380 states, 3379 states have (on average 1.2367564368156259) internal successors, (4179), 3379 states have internal predecessors, (4179), 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)
[2024-10-23 21:19:25,179 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 4179 transitions.
[2024-10-23 21:19:25,180 INFO  L78                 Accepts]: Start accepts. Automaton has 3380 states and 4179 transitions. Word has length 134
[2024-10-23 21:19:25,181 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:25,181 INFO  L471      AbstractCegarLoop]: Abstraction has 3380 states and 4179 transitions.
[2024-10-23 21:19:25,182 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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)
[2024-10-23 21:19:25,182 INFO  L276                IsEmpty]: Start isEmpty. Operand 3380 states and 4179 transitions.
[2024-10-23 21:19:25,185 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 203
[2024-10-23 21:19:25,185 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:25,185 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:25,186 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-23 21:19:25,186 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:25,186 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:25,186 INFO  L85        PathProgramCache]: Analyzing trace with hash 1281721495, now seen corresponding path program 1 times
[2024-10-23 21:19:25,186 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:25,187 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744900746]
[2024-10-23 21:19:25,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:25,187 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:25,246 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:25,406 INFO  L134       CoverageAnalysis]: Checked inductivity of 150 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked.
[2024-10-23 21:19:25,406 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:25,406 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744900746]
[2024-10-23 21:19:25,406 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744900746] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:25,406 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:25,406 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-23 21:19:25,406 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530887439]
[2024-10-23 21:19:25,407 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:25,407 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:19:25,407 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:25,408 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:19:25,408 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:25,408 INFO  L87              Difference]: Start difference. First operand 3380 states and 4179 transitions. Second operand  has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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)
[2024-10-23 21:19:26,722 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:26,723 INFO  L93              Difference]: Finished difference Result 8562 states and 10753 transitions.
[2024-10-23 21:19:26,723 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:19:26,723 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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) Word has length 202
[2024-10-23 21:19:26,725 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:26,744 INFO  L225             Difference]: With dead ends: 8562
[2024-10-23 21:19:26,745 INFO  L226             Difference]: Without dead ends: 5482
[2024-10-23 21:19:26,748 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:26,750 INFO  L432           NwaCegarLoop]: 268 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:26,750 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 335 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-10-23 21:19:26,755 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5482 states.
[2024-10-23 21:19:26,819 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5482 to 5477.
[2024-10-23 21:19:26,826 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5477 states, 5476 states have (on average 1.168736303871439) internal successors, (6400), 5476 states have internal predecessors, (6400), 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)
[2024-10-23 21:19:26,836 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 6400 transitions.
[2024-10-23 21:19:26,840 INFO  L78                 Accepts]: Start accepts. Automaton has 5477 states and 6400 transitions. Word has length 202
[2024-10-23 21:19:26,841 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:26,841 INFO  L471      AbstractCegarLoop]: Abstraction has 5477 states and 6400 transitions.
[2024-10-23 21:19:26,841 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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)
[2024-10-23 21:19:26,841 INFO  L276                IsEmpty]: Start isEmpty. Operand 5477 states and 6400 transitions.
[2024-10-23 21:19:26,847 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-10-23 21:19:26,847 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:26,847 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:26,847 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-10-23 21:19:26,848 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:26,848 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:26,848 INFO  L85        PathProgramCache]: Analyzing trace with hash -516124473, now seen corresponding path program 1 times
[2024-10-23 21:19:26,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:26,849 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404265415]
[2024-10-23 21:19:26,849 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:26,849 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:26,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:27,506 INFO  L134       CoverageAnalysis]: Checked inductivity of 147 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-10-23 21:19:27,507 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:27,507 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404265415]
[2024-10-23 21:19:27,508 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404265415] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:27,508 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:27,508 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-23 21:19:27,508 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009491657]
[2024-10-23 21:19:27,508 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:27,509 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:19:27,509 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:27,510 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:19:27,510 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:27,510 INFO  L87              Difference]: Start difference. First operand 5477 states and 6400 transitions. Second operand  has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 2 states have internal predecessors, (263), 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)
[2024-10-23 21:19:29,007 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:29,007 INFO  L93              Difference]: Finished difference Result 10654 states and 12488 transitions.
[2024-10-23 21:19:29,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:19:29,008 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 2 states have internal predecessors, (263), 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) Word has length 304
[2024-10-23 21:19:29,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:29,025 INFO  L225             Difference]: With dead ends: 10654
[2024-10-23 21:19:29,025 INFO  L226             Difference]: Without dead ends: 5477
[2024-10-23 21:19:29,032 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:29,033 INFO  L432           NwaCegarLoop]: 322 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:29,034 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 357 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-10-23 21:19:29,040 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5477 states.
[2024-10-23 21:19:29,103 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5477 to 5477.
[2024-10-23 21:19:29,111 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5477 states, 5476 states have (on average 1.1676406135865596) internal successors, (6394), 5476 states have internal predecessors, (6394), 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)
[2024-10-23 21:19:29,124 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 6394 transitions.
[2024-10-23 21:19:29,125 INFO  L78                 Accepts]: Start accepts. Automaton has 5477 states and 6394 transitions. Word has length 304
[2024-10-23 21:19:29,126 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:29,126 INFO  L471      AbstractCegarLoop]: Abstraction has 5477 states and 6394 transitions.
[2024-10-23 21:19:29,126 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 2 states have internal predecessors, (263), 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)
[2024-10-23 21:19:29,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 5477 states and 6394 transitions.
[2024-10-23 21:19:29,131 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 331
[2024-10-23 21:19:29,131 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:29,131 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:29,132 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-10-23 21:19:29,132 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:29,132 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:29,132 INFO  L85        PathProgramCache]: Analyzing trace with hash 1697791288, now seen corresponding path program 1 times
[2024-10-23 21:19:29,133 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:29,133 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486030591]
[2024-10-23 21:19:29,133 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:29,133 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:29,196 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:29,522 INFO  L134       CoverageAnalysis]: Checked inductivity of 173 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked.
[2024-10-23 21:19:29,522 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:29,522 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486030591]
[2024-10-23 21:19:29,523 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486030591] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:29,523 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:29,523 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:19:29,523 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460414652]
[2024-10-23 21:19:29,524 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:29,524 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:19:29,524 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:29,525 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:19:29,525 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:29,525 INFO  L87              Difference]: Start difference. First operand 5477 states and 6394 transitions. Second operand  has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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)
[2024-10-23 21:19:30,936 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:30,936 INFO  L93              Difference]: Finished difference Result 12757 states and 15192 transitions.
[2024-10-23 21:19:30,937 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:19:30,937 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) Word has length 330
[2024-10-23 21:19:30,938 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:30,959 INFO  L225             Difference]: With dead ends: 12757
[2024-10-23 21:19:30,960 INFO  L226             Difference]: Without dead ends: 7580
[2024-10-23 21:19:30,966 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:30,967 INFO  L432           NwaCegarLoop]: 630 mSDtfsCounter, 272 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:30,968 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 668 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-10-23 21:19:30,977 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7580 states.
[2024-10-23 21:19:31,059 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7578.
[2024-10-23 21:19:31,070 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7578 states, 7577 states have (on average 1.142140688927016) internal successors, (8654), 7577 states have internal predecessors, (8654), 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)
[2024-10-23 21:19:31,087 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7578 states to 7578 states and 8654 transitions.
[2024-10-23 21:19:31,087 INFO  L78                 Accepts]: Start accepts. Automaton has 7578 states and 8654 transitions. Word has length 330
[2024-10-23 21:19:31,088 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:31,089 INFO  L471      AbstractCegarLoop]: Abstraction has 7578 states and 8654 transitions.
[2024-10-23 21:19:31,089 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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)
[2024-10-23 21:19:31,089 INFO  L276                IsEmpty]: Start isEmpty. Operand 7578 states and 8654 transitions.
[2024-10-23 21:19:31,095 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 390
[2024-10-23 21:19:31,095 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:31,096 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:31,096 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-10-23 21:19:31,097 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:31,097 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:31,097 INFO  L85        PathProgramCache]: Analyzing trace with hash 71767429, now seen corresponding path program 1 times
[2024-10-23 21:19:31,097 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:31,097 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285361778]
[2024-10-23 21:19:31,098 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:31,098 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:31,209 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:31,444 INFO  L134       CoverageAnalysis]: Checked inductivity of 158 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked.
[2024-10-23 21:19:31,445 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:31,445 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285361778]
[2024-10-23 21:19:31,446 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285361778] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:31,446 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:31,446 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:19:31,446 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50710587]
[2024-10-23 21:19:31,446 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:31,447 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:19:31,447 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:31,448 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:19:31,448 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:31,449 INFO  L87              Difference]: Start difference. First operand 7578 states and 8654 transitions. Second operand  has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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)
[2024-10-23 21:19:33,504 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:33,504 INFO  L93              Difference]: Finished difference Result 16955 states and 19715 transitions.
[2024-10-23 21:19:33,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:19:33,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) Word has length 389
[2024-10-23 21:19:33,506 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:33,534 INFO  L225             Difference]: With dead ends: 16955
[2024-10-23 21:19:33,534 INFO  L226             Difference]: Without dead ends: 9677
[2024-10-23 21:19:33,543 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:33,544 INFO  L432           NwaCegarLoop]: 596 mSDtfsCounter, 283 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:33,544 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 632 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-10-23 21:19:33,552 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9677 states.
[2024-10-23 21:19:33,684 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9677 to 8780.
[2024-10-23 21:19:33,705 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8780 states, 8779 states have (on average 1.1329308577286707) internal successors, (9946), 8779 states have internal predecessors, (9946), 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)
[2024-10-23 21:19:33,724 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8780 states to 8780 states and 9946 transitions.
[2024-10-23 21:19:33,725 INFO  L78                 Accepts]: Start accepts. Automaton has 8780 states and 9946 transitions. Word has length 389
[2024-10-23 21:19:33,726 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:33,726 INFO  L471      AbstractCegarLoop]: Abstraction has 8780 states and 9946 transitions.
[2024-10-23 21:19:33,727 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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)
[2024-10-23 21:19:33,727 INFO  L276                IsEmpty]: Start isEmpty. Operand 8780 states and 9946 transitions.
[2024-10-23 21:19:33,732 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 391
[2024-10-23 21:19:33,733 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:33,733 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:33,733 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-10-23 21:19:33,734 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:33,734 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:33,734 INFO  L85        PathProgramCache]: Analyzing trace with hash 238807859, now seen corresponding path program 1 times
[2024-10-23 21:19:33,734 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:33,735 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017418065]
[2024-10-23 21:19:33,735 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:33,735 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:33,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:34,608 INFO  L134       CoverageAnalysis]: Checked inductivity of 147 backedges. 83 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:34,609 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:34,609 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017418065]
[2024-10-23 21:19:34,609 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017418065] provided 0 perfect and 1 imperfect interpolant sequences
[2024-10-23 21:19:34,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141140207]
[2024-10-23 21:19:34,610 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:34,610 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-23 21:19:34,610 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-23 21:19:34,612 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-23 21:19:34,613 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-10-23 21:19:34,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:34,776 INFO  L255         TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-10-23 21:19:34,787 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-23 21:19:35,395 INFO  L134       CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:35,395 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-10-23 21:19:39,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 147 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:39,466 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [141140207] provided 1 perfect and 1 imperfect interpolant sequences
[2024-10-23 21:19:39,466 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-10-23 21:19:39,467 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 9
[2024-10-23 21:19:39,467 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872540387]
[2024-10-23 21:19:39,467 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:39,468 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-23 21:19:39,468 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:39,468 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-23 21:19:39,469 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90
[2024-10-23 21:19:39,469 INFO  L87              Difference]: Start difference. First operand 8780 states and 9946 transitions. Second operand  has 5 states, 5 states have (on average 78.0) internal successors, (390), 4 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-23 21:19:42,815 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:42,815 INFO  L93              Difference]: Finished difference Result 24493 states and 28333 transitions.
[2024-10-23 21:19:42,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-23 21:19:42,816 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 78.0) internal successors, (390), 4 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390
[2024-10-23 21:19:42,817 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:42,846 INFO  L225             Difference]: With dead ends: 24493
[2024-10-23 21:19:42,846 INFO  L226             Difference]: Without dead ends: 16013
[2024-10-23 21:19:42,855 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 782 GetRequests, 774 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90
[2024-10-23 21:19:42,856 INFO  L432           NwaCegarLoop]: 47 mSDtfsCounter, 623 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1863 mSolverCounterSat, 843 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 843 IncrementalHoareTripleChecker+Valid, 1863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:42,856 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 107 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [843 Valid, 1863 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-10-23 21:19:42,868 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16013 states.
[2024-10-23 21:19:43,010 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16013 to 15077.
[2024-10-23 21:19:43,028 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15077 states, 15076 states have (on average 1.1609180153886973) internal successors, (17502), 15076 states have internal predecessors, (17502), 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)
[2024-10-23 21:19:43,048 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15077 states to 15077 states and 17502 transitions.
[2024-10-23 21:19:43,048 INFO  L78                 Accepts]: Start accepts. Automaton has 15077 states and 17502 transitions. Word has length 390
[2024-10-23 21:19:43,049 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:43,049 INFO  L471      AbstractCegarLoop]: Abstraction has 15077 states and 17502 transitions.
[2024-10-23 21:19:43,049 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 78.0) internal successors, (390), 4 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-23 21:19:43,050 INFO  L276                IsEmpty]: Start isEmpty. Operand 15077 states and 17502 transitions.
[2024-10-23 21:19:43,056 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 407
[2024-10-23 21:19:43,056 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:43,056 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:43,074 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-10-23 21:19:43,257 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-10-23 21:19:43,257 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:43,258 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:43,258 INFO  L85        PathProgramCache]: Analyzing trace with hash 601559524, now seen corresponding path program 1 times
[2024-10-23 21:19:43,258 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:43,258 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385130996]
[2024-10-23 21:19:43,258 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:43,259 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:43,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:43,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 163 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:43,730 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:43,730 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385130996]
[2024-10-23 21:19:43,730 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385130996] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:43,730 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:43,731 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:19:43,731 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139068246]
[2024-10-23 21:19:43,731 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:43,732 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:19:43,732 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:43,733 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:19:43,733 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:43,733 INFO  L87              Difference]: Start difference. First operand 15077 states and 17502 transitions. Second operand  has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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)
[2024-10-23 21:19:45,004 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:45,004 INFO  L93              Difference]: Finished difference Result 33446 states and 39635 transitions.
[2024-10-23 21:19:45,005 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:19:45,005 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) Word has length 406
[2024-10-23 21:19:45,006 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:45,038 INFO  L225             Difference]: With dead ends: 33446
[2024-10-23 21:19:45,038 INFO  L226             Difference]: Without dead ends: 18669
[2024-10-23 21:19:45,054 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:45,055 INFO  L432           NwaCegarLoop]: 582 mSDtfsCounter, 246 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:45,055 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 619 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-10-23 21:19:45,071 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18669 states.
[2024-10-23 21:19:45,242 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18669 to 17764.
[2024-10-23 21:19:45,262 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17764 states, 17763 states have (on average 1.1506502280020268) internal successors, (20439), 17763 states have internal predecessors, (20439), 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)
[2024-10-23 21:19:45,283 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17764 states to 17764 states and 20439 transitions.
[2024-10-23 21:19:45,284 INFO  L78                 Accepts]: Start accepts. Automaton has 17764 states and 20439 transitions. Word has length 406
[2024-10-23 21:19:45,285 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:45,285 INFO  L471      AbstractCegarLoop]: Abstraction has 17764 states and 20439 transitions.
[2024-10-23 21:19:45,285 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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)
[2024-10-23 21:19:45,286 INFO  L276                IsEmpty]: Start isEmpty. Operand 17764 states and 20439 transitions.
[2024-10-23 21:19:45,293 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 453
[2024-10-23 21:19:45,294 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:45,294 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:45,294 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-10-23 21:19:45,295 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:45,295 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:45,295 INFO  L85        PathProgramCache]: Analyzing trace with hash 391183246, now seen corresponding path program 1 times
[2024-10-23 21:19:45,295 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:45,295 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756564567]
[2024-10-23 21:19:45,296 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:45,296 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:45,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:45,560 INFO  L134       CoverageAnalysis]: Checked inductivity of 425 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked.
[2024-10-23 21:19:45,560 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:45,560 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756564567]
[2024-10-23 21:19:45,560 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756564567] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:45,561 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:19:45,561 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:19:45,561 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458671032]
[2024-10-23 21:19:45,561 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:45,562 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:19:45,562 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:45,562 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:19:45,562 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:45,563 INFO  L87              Difference]: Start difference. First operand 17764 states and 20439 transitions. Second operand  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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)
[2024-10-23 21:19:46,884 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:46,884 INFO  L93              Difference]: Finished difference Result 42722 states and 49426 transitions.
[2024-10-23 21:19:46,885 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:19:46,885 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) Word has length 452
[2024-10-23 21:19:46,886 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:46,918 INFO  L225             Difference]: With dead ends: 42722
[2024-10-23 21:19:46,919 INFO  L226             Difference]: Without dead ends: 25258
[2024-10-23 21:19:46,936 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:19:46,937 INFO  L432           NwaCegarLoop]: 586 mSDtfsCounter, 283 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:46,937 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 618 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-10-23 21:19:46,956 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25258 states.
[2024-10-23 21:19:47,168 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25258 to 24944.
[2024-10-23 21:19:47,190 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 24944 states, 24943 states have (on average 1.131219179729784) internal successors, (28216), 24943 states have internal predecessors, (28216), 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)
[2024-10-23 21:19:47,222 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24944 states to 24944 states and 28216 transitions.
[2024-10-23 21:19:47,223 INFO  L78                 Accepts]: Start accepts. Automaton has 24944 states and 28216 transitions. Word has length 452
[2024-10-23 21:19:47,223 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:47,224 INFO  L471      AbstractCegarLoop]: Abstraction has 24944 states and 28216 transitions.
[2024-10-23 21:19:47,224 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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)
[2024-10-23 21:19:47,225 INFO  L276                IsEmpty]: Start isEmpty. Operand 24944 states and 28216 transitions.
[2024-10-23 21:19:47,230 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 498
[2024-10-23 21:19:47,230 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:47,231 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:47,231 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-10-23 21:19:47,231 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:47,231 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:47,232 INFO  L85        PathProgramCache]: Analyzing trace with hash 1730169027, now seen corresponding path program 1 times
[2024-10-23 21:19:47,232 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:47,232 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302504743]
[2024-10-23 21:19:47,232 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:47,232 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:47,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:48,198 INFO  L134       CoverageAnalysis]: Checked inductivity of 384 backedges. 42 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:48,199 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:48,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302504743]
[2024-10-23 21:19:48,199 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302504743] provided 0 perfect and 1 imperfect interpolant sequences
[2024-10-23 21:19:48,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521243855]
[2024-10-23 21:19:48,199 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:48,200 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-23 21:19:48,200 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-23 21:19:48,202 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-23 21:19:48,204 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-10-23 21:19:48,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:48,367 INFO  L255         TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-10-23 21:19:48,378 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-23 21:19:49,132 INFO  L134       CoverageAnalysis]: Checked inductivity of 384 backedges. 42 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:49,132 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-10-23 21:19:50,015 INFO  L134       CoverageAnalysis]: Checked inductivity of 384 backedges. 161 proven. 223 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:19:50,015 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521243855] provided 0 perfect and 2 imperfect interpolant sequences
[2024-10-23 21:19:50,015 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-10-23 21:19:50,016 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12
[2024-10-23 21:19:50,016 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104879135]
[2024-10-23 21:19:50,016 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-10-23 21:19:50,017 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-10-23 21:19:50,018 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:50,019 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-10-23 21:19:50,019 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156
[2024-10-23 21:19:50,020 INFO  L87              Difference]: Start difference. First operand 24944 states and 28216 transitions. Second operand  has 13 states, 13 states have (on average 93.84615384615384) internal successors, (1220), 12 states have internal predecessors, (1220), 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)
[2024-10-23 21:19:57,626 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:19:57,626 INFO  L93              Difference]: Finished difference Result 84101 states and 95065 transitions.
[2024-10-23 21:19:57,627 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-10-23 21:19:57,627 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 93.84615384615384) internal successors, (1220), 12 states have internal predecessors, (1220), 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) Word has length 497
[2024-10-23 21:19:57,628 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:19:57,810 INFO  L225             Difference]: With dead ends: 84101
[2024-10-23 21:19:57,811 INFO  L226             Difference]: Without dead ends: 59457
[2024-10-23 21:19:57,829 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 986 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420
[2024-10-23 21:19:57,830 INFO  L432           NwaCegarLoop]: 59 mSDtfsCounter, 7308 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4968 mSolverCounterSat, 3964 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7308 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 8932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3964 IncrementalHoareTripleChecker+Valid, 4968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time
[2024-10-23 21:19:57,830 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7308 Valid, 197 Invalid, 8932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3964 Valid, 4968 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time]
[2024-10-23 21:19:57,878 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 59457 states.
[2024-10-23 21:19:58,242 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 59457 to 28834.
[2024-10-23 21:19:58,270 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28834 states, 28833 states have (on average 1.1316547012104186) internal successors, (32629), 28833 states have internal predecessors, (32629), 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)
[2024-10-23 21:19:58,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28834 states to 28834 states and 32629 transitions.
[2024-10-23 21:19:58,310 INFO  L78                 Accepts]: Start accepts. Automaton has 28834 states and 32629 transitions. Word has length 497
[2024-10-23 21:19:58,310 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:19:58,310 INFO  L471      AbstractCegarLoop]: Abstraction has 28834 states and 32629 transitions.
[2024-10-23 21:19:58,311 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 93.84615384615384) internal successors, (1220), 12 states have internal predecessors, (1220), 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)
[2024-10-23 21:19:58,311 INFO  L276                IsEmpty]: Start isEmpty. Operand 28834 states and 32629 transitions.
[2024-10-23 21:19:58,318 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 528
[2024-10-23 21:19:58,318 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:19:58,319 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:19:58,337 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-10-23 21:19:58,519 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2024-10-23 21:19:58,520 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:19:58,520 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:19:58,520 INFO  L85        PathProgramCache]: Analyzing trace with hash 460409681, now seen corresponding path program 1 times
[2024-10-23 21:19:58,521 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:19:58,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163380918]
[2024-10-23 21:19:58,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:58,521 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:19:58,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:59,170 INFO  L134       CoverageAnalysis]: Checked inductivity of 691 backedges. 493 proven. 39 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked.
[2024-10-23 21:19:59,170 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:19:59,170 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163380918]
[2024-10-23 21:19:59,170 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163380918] provided 0 perfect and 1 imperfect interpolant sequences
[2024-10-23 21:19:59,170 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080077084]
[2024-10-23 21:19:59,171 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:19:59,171 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-23 21:19:59,171 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-23 21:19:59,173 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-23 21:19:59,174 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-10-23 21:19:59,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:19:59,361 INFO  L255         TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-10-23 21:19:59,367 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-23 21:19:59,426 INFO  L134       CoverageAnalysis]: Checked inductivity of 691 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked.
[2024-10-23 21:19:59,427 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-10-23 21:19:59,427 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080077084] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:19:59,427 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-10-23 21:19:59,427 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-10-23 21:19:59,427 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457851164]
[2024-10-23 21:19:59,428 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:19:59,428 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:19:59,428 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:19:59,429 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:19:59,429 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-10-23 21:19:59,429 INFO  L87              Difference]: Start difference. First operand 28834 states and 32629 transitions. Second operand  has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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)
[2024-10-23 21:20:00,559 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:20:00,559 INFO  L93              Difference]: Finished difference Result 62749 states and 71354 transitions.
[2024-10-23 21:20:00,559 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:20:00,560 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) Word has length 527
[2024-10-23 21:20:00,560 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:20:00,593 INFO  L225             Difference]: With dead ends: 62749
[2024-10-23 21:20:00,593 INFO  L226             Difference]: Without dead ends: 34215
[2024-10-23 21:20:00,614 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-10-23 21:20:00,614 INFO  L432           NwaCegarLoop]: 424 mSDtfsCounter, 373 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-10-23 21:20:00,615 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 442 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-10-23 21:20:00,640 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34215 states.
[2024-10-23 21:20:00,869 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34215 to 33015.
[2024-10-23 21:20:00,894 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33015 states, 33014 states have (on average 1.123069001029866) internal successors, (37077), 33014 states have internal predecessors, (37077), 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)
[2024-10-23 21:20:01,127 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33015 states to 33015 states and 37077 transitions.
[2024-10-23 21:20:01,131 INFO  L78                 Accepts]: Start accepts. Automaton has 33015 states and 37077 transitions. Word has length 527
[2024-10-23 21:20:01,132 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:20:01,132 INFO  L471      AbstractCegarLoop]: Abstraction has 33015 states and 37077 transitions.
[2024-10-23 21:20:01,132 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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)
[2024-10-23 21:20:01,132 INFO  L276                IsEmpty]: Start isEmpty. Operand 33015 states and 37077 transitions.
[2024-10-23 21:20:01,145 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 602
[2024-10-23 21:20:01,146 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:20:01,146 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:20:01,164 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-10-23 21:20:01,350 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-23 21:20:01,351 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:20:01,352 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:20:01,352 INFO  L85        PathProgramCache]: Analyzing trace with hash -1181379407, now seen corresponding path program 1 times
[2024-10-23 21:20:01,352 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:20:01,352 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530808255]
[2024-10-23 21:20:01,352 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:01,352 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:20:01,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:02,068 INFO  L134       CoverageAnalysis]: Checked inductivity of 1028 backedges. 640 proven. 39 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked.
[2024-10-23 21:20:02,069 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:20:02,069 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530808255]
[2024-10-23 21:20:02,069 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530808255] provided 0 perfect and 1 imperfect interpolant sequences
[2024-10-23 21:20:02,069 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870674597]
[2024-10-23 21:20:02,070 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:02,070 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-23 21:20:02,070 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-23 21:20:02,072 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-23 21:20:02,073 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-10-23 21:20:02,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:02,267 INFO  L255         TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-10-23 21:20:02,273 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-23 21:20:02,380 INFO  L134       CoverageAnalysis]: Checked inductivity of 1028 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked.
[2024-10-23 21:20:02,380 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-10-23 21:20:02,380 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [870674597] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:20:02,380 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-10-23 21:20:02,381 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-10-23 21:20:02,381 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224590798]
[2024-10-23 21:20:02,381 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:20:02,382 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:20:02,382 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:20:02,382 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:20:02,382 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-10-23 21:20:02,383 INFO  L87              Difference]: Start difference. First operand 33015 states and 37077 transitions. Second operand  has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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)
[2024-10-23 21:20:03,785 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:20:03,785 INFO  L93              Difference]: Finished difference Result 73797 states and 82948 transitions.
[2024-10-23 21:20:03,786 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:20:03,786 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) Word has length 601
[2024-10-23 21:20:03,786 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:20:03,825 INFO  L225             Difference]: With dead ends: 73797
[2024-10-23 21:20:03,825 INFO  L226             Difference]: Without dead ends: 41082
[2024-10-23 21:20:03,848 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-10-23 21:20:03,849 INFO  L432           NwaCegarLoop]: 219 mSDtfsCounter, 264 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-10-23 21:20:03,849 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 255 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-10-23 21:20:03,876 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41082 states.
[2024-10-23 21:20:04,258 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41082 to 32408.
[2024-10-23 21:20:04,281 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32408 states, 32407 states have (on average 1.1170426142500076) internal successors, (36200), 32407 states have internal predecessors, (36200), 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)
[2024-10-23 21:20:04,335 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32408 states to 32408 states and 36200 transitions.
[2024-10-23 21:20:04,337 INFO  L78                 Accepts]: Start accepts. Automaton has 32408 states and 36200 transitions. Word has length 601
[2024-10-23 21:20:04,338 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:20:04,338 INFO  L471      AbstractCegarLoop]: Abstraction has 32408 states and 36200 transitions.
[2024-10-23 21:20:04,338 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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)
[2024-10-23 21:20:04,338 INFO  L276                IsEmpty]: Start isEmpty. Operand 32408 states and 36200 transitions.
[2024-10-23 21:20:04,356 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 607
[2024-10-23 21:20:04,356 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:20:04,357 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:20:04,374 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-10-23 21:20:04,557 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-10-23 21:20:04,558 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:20:04,558 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:20:04,558 INFO  L85        PathProgramCache]: Analyzing trace with hash -1010195228, now seen corresponding path program 1 times
[2024-10-23 21:20:04,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:20:04,559 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869258013]
[2024-10-23 21:20:04,559 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:04,559 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:20:04,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:05,347 INFO  L134       CoverageAnalysis]: Checked inductivity of 1044 backedges. 650 proven. 39 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked.
[2024-10-23 21:20:05,347 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:20:05,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869258013]
[2024-10-23 21:20:05,348 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869258013] provided 0 perfect and 1 imperfect interpolant sequences
[2024-10-23 21:20:05,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15853363]
[2024-10-23 21:20:05,348 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:05,348 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-23 21:20:05,348 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-23 21:20:05,350 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-23 21:20:05,352 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-10-23 21:20:05,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:05,556 INFO  L255         TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-10-23 21:20:05,562 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-23 21:20:05,656 INFO  L134       CoverageAnalysis]: Checked inductivity of 1044 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked.
[2024-10-23 21:20:05,656 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-10-23 21:20:05,656 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [15853363] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:20:05,657 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-10-23 21:20:05,657 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-10-23 21:20:05,657 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284516337]
[2024-10-23 21:20:05,657 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:20:05,658 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:20:05,658 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:20:05,659 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:20:05,659 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-10-23 21:20:05,660 INFO  L87              Difference]: Start difference. First operand 32408 states and 36200 transitions. Second operand  has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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)
[2024-10-23 21:20:06,999 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:20:06,999 INFO  L93              Difference]: Finished difference Result 64511 states and 72087 transitions.
[2024-10-23 21:20:07,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:20:07,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) Word has length 606
[2024-10-23 21:20:07,001 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:20:07,029 INFO  L225             Difference]: With dead ends: 64511
[2024-10-23 21:20:07,029 INFO  L226             Difference]: Without dead ends: 32403
[2024-10-23 21:20:07,048 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-10-23 21:20:07,048 INFO  L432           NwaCegarLoop]: 561 mSDtfsCounter, 250 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-10-23 21:20:07,049 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 597 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-10-23 21:20:07,066 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32403 states.
[2024-10-23 21:20:07,412 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32403 to 31506.
[2024-10-23 21:20:07,427 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31506 states, 31505 states have (on average 1.0723694651642597) internal successors, (33785), 31505 states have internal predecessors, (33785), 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)
[2024-10-23 21:20:07,456 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31506 states to 31506 states and 33785 transitions.
[2024-10-23 21:20:07,457 INFO  L78                 Accepts]: Start accepts. Automaton has 31506 states and 33785 transitions. Word has length 606
[2024-10-23 21:20:07,458 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:20:07,458 INFO  L471      AbstractCegarLoop]: Abstraction has 31506 states and 33785 transitions.
[2024-10-23 21:20:07,458 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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)
[2024-10-23 21:20:07,458 INFO  L276                IsEmpty]: Start isEmpty. Operand 31506 states and 33785 transitions.
[2024-10-23 21:20:07,475 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 685
[2024-10-23 21:20:07,475 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:20:07,476 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:20:07,491 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-10-23 21:20:07,680 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-10-23 21:20:07,681 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:20:07,681 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:20:07,681 INFO  L85        PathProgramCache]: Analyzing trace with hash 1255395300, now seen corresponding path program 1 times
[2024-10-23 21:20:07,681 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:20:07,681 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330766638]
[2024-10-23 21:20:07,681 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:07,682 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:20:07,763 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:08,635 INFO  L134       CoverageAnalysis]: Checked inductivity of 589 backedges. 125 proven. 464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:20:08,635 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:20:08,635 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330766638]
[2024-10-23 21:20:08,636 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330766638] provided 0 perfect and 1 imperfect interpolant sequences
[2024-10-23 21:20:08,636 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523677992]
[2024-10-23 21:20:08,636 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:08,636 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-23 21:20:08,636 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-23 21:20:08,638 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-23 21:20:08,639 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-10-23 21:20:08,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:08,836 INFO  L255         TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-10-23 21:20:08,842 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-23 21:20:09,543 INFO  L134       CoverageAnalysis]: Checked inductivity of 589 backedges. 0 proven. 589 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:20:09,544 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-10-23 21:20:10,789 INFO  L134       CoverageAnalysis]: Checked inductivity of 589 backedges. 589 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-23 21:20:10,789 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523677992] provided 1 perfect and 1 imperfect interpolant sequences
[2024-10-23 21:20:10,790 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-10-23 21:20:10,790 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 13
[2024-10-23 21:20:10,790 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392159738]
[2024-10-23 21:20:10,790 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:20:10,791 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-10-23 21:20:10,791 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:20:10,792 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-10-23 21:20:10,792 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182
[2024-10-23 21:20:10,793 INFO  L87              Difference]: Start difference. First operand 31506 states and 33785 transitions. Second operand  has 6 states, 6 states have (on average 114.0) internal successors, (684), 5 states have internal predecessors, (684), 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)
[2024-10-23 21:20:13,614 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:20:13,614 INFO  L93              Difference]: Finished difference Result 73507 states and 78757 transitions.
[2024-10-23 21:20:13,614 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-23 21:20:13,614 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 114.0) internal successors, (684), 5 states have internal predecessors, (684), 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) Word has length 684
[2024-10-23 21:20:13,615 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:20:13,749 INFO  L225             Difference]: With dead ends: 73507
[2024-10-23 21:20:13,749 INFO  L226             Difference]: Without dead ends: 42301
[2024-10-23 21:20:13,760 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1371 GetRequests, 1359 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182
[2024-10-23 21:20:13,761 INFO  L432           NwaCegarLoop]: 41 mSDtfsCounter, 718 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1770 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 1770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-10-23 21:20:13,761 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 82 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 1770 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-10-23 21:20:13,784 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42301 states.
[2024-10-23 21:20:14,026 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42301 to 36892.
[2024-10-23 21:20:14,048 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36892 states, 36891 states have (on average 1.073351223875742) internal successors, (39597), 36891 states have internal predecessors, (39597), 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)
[2024-10-23 21:20:14,079 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36892 states to 36892 states and 39597 transitions.
[2024-10-23 21:20:14,080 INFO  L78                 Accepts]: Start accepts. Automaton has 36892 states and 39597 transitions. Word has length 684
[2024-10-23 21:20:14,081 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:20:14,081 INFO  L471      AbstractCegarLoop]: Abstraction has 36892 states and 39597 transitions.
[2024-10-23 21:20:14,081 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 114.0) internal successors, (684), 5 states have internal predecessors, (684), 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)
[2024-10-23 21:20:14,081 INFO  L276                IsEmpty]: Start isEmpty. Operand 36892 states and 39597 transitions.
[2024-10-23 21:20:14,103 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 788
[2024-10-23 21:20:14,104 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:20:14,104 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:20:14,117 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-10-23 21:20:14,304 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-10-23 21:20:14,305 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:20:14,305 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:20:14,305 INFO  L85        PathProgramCache]: Analyzing trace with hash 1091264319, now seen corresponding path program 1 times
[2024-10-23 21:20:14,306 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:20:14,306 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779661359]
[2024-10-23 21:20:14,306 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:14,306 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:20:14,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:14,577 INFO  L134       CoverageAnalysis]: Checked inductivity of 1265 backedges. 924 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked.
[2024-10-23 21:20:14,578 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:20:14,578 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779661359]
[2024-10-23 21:20:14,578 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779661359] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:20:14,578 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:20:14,578 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:20:14,578 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626242961]
[2024-10-23 21:20:14,578 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:20:14,579 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:20:14,579 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:20:14,580 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:20:14,580 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:14,580 INFO  L87              Difference]: Start difference. First operand 36892 states and 39597 transitions. Second operand  has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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)
[2024-10-23 21:20:16,400 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:20:16,400 INFO  L93              Difference]: Finished difference Result 79462 states and 85202 transitions.
[2024-10-23 21:20:16,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:20:16,400 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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) Word has length 787
[2024-10-23 21:20:16,401 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:20:16,432 INFO  L225             Difference]: With dead ends: 79462
[2024-10-23 21:20:16,432 INFO  L226             Difference]: Without dead ends: 33302
[2024-10-23 21:20:16,451 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:16,452 INFO  L432           NwaCegarLoop]: 399 mSDtfsCounter, 321 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-10-23 21:20:16,452 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 408 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-10-23 21:20:16,469 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33302 states.
[2024-10-23 21:20:16,647 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33302 to 25814.
[2024-10-23 21:20:16,663 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25814 states, 25813 states have (on average 1.0410258396931777) internal successors, (26872), 25813 states have internal predecessors, (26872), 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)
[2024-10-23 21:20:16,684 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25814 states to 25814 states and 26872 transitions.
[2024-10-23 21:20:16,685 INFO  L78                 Accepts]: Start accepts. Automaton has 25814 states and 26872 transitions. Word has length 787
[2024-10-23 21:20:16,686 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:20:16,686 INFO  L471      AbstractCegarLoop]: Abstraction has 25814 states and 26872 transitions.
[2024-10-23 21:20:16,686 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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)
[2024-10-23 21:20:16,686 INFO  L276                IsEmpty]: Start isEmpty. Operand 25814 states and 26872 transitions.
[2024-10-23 21:20:16,699 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 792
[2024-10-23 21:20:16,699 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:20:16,700 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:20:16,700 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-10-23 21:20:16,700 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:20:16,700 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:20:16,701 INFO  L85        PathProgramCache]: Analyzing trace with hash 640468413, now seen corresponding path program 1 times
[2024-10-23 21:20:16,701 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:20:16,701 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610673340]
[2024-10-23 21:20:16,701 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:16,701 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:20:16,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:17,250 INFO  L134       CoverageAnalysis]: Checked inductivity of 1026 backedges. 644 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked.
[2024-10-23 21:20:17,250 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:20:17,250 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610673340]
[2024-10-23 21:20:17,251 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610673340] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:20:17,251 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:20:17,251 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:20:17,251 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051103691]
[2024-10-23 21:20:17,251 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:20:17,253 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:20:17,253 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:20:17,254 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:20:17,254 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:17,254 INFO  L87              Difference]: Start difference. First operand 25814 states and 26872 transitions. Second operand  has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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)
[2024-10-23 21:20:18,279 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:20:18,279 INFO  L93              Difference]: Finished difference Result 57325 states and 59713 transitions.
[2024-10-23 21:20:18,279 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:20:18,279 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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) Word has length 791
[2024-10-23 21:20:18,280 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:20:18,312 INFO  L225             Difference]: With dead ends: 57325
[2024-10-23 21:20:18,312 INFO  L226             Difference]: Without dead ends: 31811
[2024-10-23 21:20:18,329 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:18,330 INFO  L432           NwaCegarLoop]: 524 mSDtfsCounter, 123 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-10-23 21:20:18,330 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 567 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-10-23 21:20:18,347 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31811 states.
[2024-10-23 21:20:18,532 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31811 to 28219.
[2024-10-23 21:20:18,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28219 states, 28218 states have (on average 1.036891345949394) internal successors, (29259), 28218 states have internal predecessors, (29259), 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)
[2024-10-23 21:20:18,575 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28219 states to 28219 states and 29259 transitions.
[2024-10-23 21:20:18,576 INFO  L78                 Accepts]: Start accepts. Automaton has 28219 states and 29259 transitions. Word has length 791
[2024-10-23 21:20:18,576 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:20:18,577 INFO  L471      AbstractCegarLoop]: Abstraction has 28219 states and 29259 transitions.
[2024-10-23 21:20:18,577 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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)
[2024-10-23 21:20:18,577 INFO  L276                IsEmpty]: Start isEmpty. Operand 28219 states and 29259 transitions.
[2024-10-23 21:20:18,655 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 829
[2024-10-23 21:20:18,655 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:20:18,656 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:20:18,656 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-10-23 21:20:18,656 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:20:18,657 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:20:18,657 INFO  L85        PathProgramCache]: Analyzing trace with hash -1607863809, now seen corresponding path program 1 times
[2024-10-23 21:20:18,657 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:20:18,657 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579411636]
[2024-10-23 21:20:18,657 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:18,657 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:20:18,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:19,194 INFO  L134       CoverageAnalysis]: Checked inductivity of 1303 backedges. 1028 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked.
[2024-10-23 21:20:19,194 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:20:19,194 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579411636]
[2024-10-23 21:20:19,194 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579411636] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:20:19,194 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:20:19,194 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-23 21:20:19,194 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260188239]
[2024-10-23 21:20:19,195 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:20:19,196 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-23 21:20:19,196 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:20:19,197 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-23 21:20:19,197 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-10-23 21:20:19,197 INFO  L87              Difference]: Start difference. First operand 28219 states and 29259 transitions. Second operand  has 4 states, 4 states have (on average 159.75) internal successors, (639), 4 states have internal predecessors, (639), 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)
[2024-10-23 21:20:20,475 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:20:20,475 INFO  L93              Difference]: Finished difference Result 62119 states and 64348 transitions.
[2024-10-23 21:20:20,476 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-23 21:20:20,476 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 159.75) internal successors, (639), 4 states have internal predecessors, (639), 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) Word has length 828
[2024-10-23 21:20:20,476 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:20:20,509 INFO  L225             Difference]: With dead ends: 62119
[2024-10-23 21:20:20,509 INFO  L226             Difference]: Without dead ends: 30598
[2024-10-23 21:20:20,526 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-10-23 21:20:20,526 INFO  L432           NwaCegarLoop]: 69 mSDtfsCounter, 462 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-10-23 21:20:20,527 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 128 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-10-23 21:20:20,543 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30598 states.
[2024-10-23 21:20:20,694 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30598 to 22516.
[2024-10-23 21:20:20,705 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22516 states, 22515 states have (on average 1.0290473017988009) internal successors, (23169), 22515 states have internal predecessors, (23169), 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)
[2024-10-23 21:20:20,723 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22516 states to 22516 states and 23169 transitions.
[2024-10-23 21:20:20,724 INFO  L78                 Accepts]: Start accepts. Automaton has 22516 states and 23169 transitions. Word has length 828
[2024-10-23 21:20:20,725 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:20:20,725 INFO  L471      AbstractCegarLoop]: Abstraction has 22516 states and 23169 transitions.
[2024-10-23 21:20:20,725 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 159.75) internal successors, (639), 4 states have internal predecessors, (639), 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)
[2024-10-23 21:20:20,725 INFO  L276                IsEmpty]: Start isEmpty. Operand 22516 states and 23169 transitions.
[2024-10-23 21:20:20,738 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 841
[2024-10-23 21:20:20,739 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:20:20,739 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:20:20,739 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-10-23 21:20:20,739 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:20:20,740 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:20:20,740 INFO  L85        PathProgramCache]: Analyzing trace with hash -1837744156, now seen corresponding path program 1 times
[2024-10-23 21:20:20,740 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:20:20,740 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304917666]
[2024-10-23 21:20:20,740 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:20,740 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:20:20,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:21,218 INFO  L134       CoverageAnalysis]: Checked inductivity of 1381 backedges. 1096 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked.
[2024-10-23 21:20:21,219 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:20:21,219 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304917666]
[2024-10-23 21:20:21,219 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304917666] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:20:21,219 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:20:21,220 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:20:21,220 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801003428]
[2024-10-23 21:20:21,220 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:20:21,221 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:20:21,221 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:20:21,221 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:20:21,222 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:21,222 INFO  L87              Difference]: Start difference. First operand 22516 states and 23169 transitions. Second operand  has 3 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 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)
[2024-10-23 21:20:22,056 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:20:22,056 INFO  L93              Difference]: Finished difference Result 50114 states and 51608 transitions.
[2024-10-23 21:20:22,057 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:20:22,057 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 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) Word has length 840
[2024-10-23 21:20:22,057 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:20:22,080 INFO  L225             Difference]: With dead ends: 50114
[2024-10-23 21:20:22,080 INFO  L226             Difference]: Without dead ends: 27898
[2024-10-23 21:20:22,093 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:22,094 INFO  L432           NwaCegarLoop]: 102 mSDtfsCounter, 197 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-10-23 21:20:22,094 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 127 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-10-23 21:20:22,106 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27898 states.
[2024-10-23 21:20:22,252 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27898 to 24310.
[2024-10-23 21:20:22,266 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 24310 states, 24309 states have (on average 1.0286313710971244) internal successors, (25005), 24309 states have internal predecessors, (25005), 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)
[2024-10-23 21:20:22,285 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24310 states to 24310 states and 25005 transitions.
[2024-10-23 21:20:22,286 INFO  L78                 Accepts]: Start accepts. Automaton has 24310 states and 25005 transitions. Word has length 840
[2024-10-23 21:20:22,287 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:20:22,287 INFO  L471      AbstractCegarLoop]: Abstraction has 24310 states and 25005 transitions.
[2024-10-23 21:20:22,287 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 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)
[2024-10-23 21:20:22,287 INFO  L276                IsEmpty]: Start isEmpty. Operand 24310 states and 25005 transitions.
[2024-10-23 21:20:22,306 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 896
[2024-10-23 21:20:22,306 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:20:22,307 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:20:22,307 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-10-23 21:20:22,307 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:20:22,307 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:20:22,308 INFO  L85        PathProgramCache]: Analyzing trace with hash -921365552, now seen corresponding path program 1 times
[2024-10-23 21:20:22,308 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:20:22,308 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903175006]
[2024-10-23 21:20:22,308 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:22,308 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:20:22,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:22,619 INFO  L134       CoverageAnalysis]: Checked inductivity of 1430 backedges. 746 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked.
[2024-10-23 21:20:22,619 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:20:22,619 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903175006]
[2024-10-23 21:20:22,619 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903175006] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:20:22,619 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:20:22,619 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:20:22,620 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767544824]
[2024-10-23 21:20:22,620 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:20:22,621 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:20:22,621 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:20:22,622 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:20:22,622 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:22,622 INFO  L87              Difference]: Start difference. First operand 24310 states and 25005 transitions. Second operand  has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 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)
[2024-10-23 21:20:23,395 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:20:23,395 INFO  L93              Difference]: Finished difference Result 48914 states and 50328 transitions.
[2024-10-23 21:20:23,396 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:20:23,396 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 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) Word has length 895
[2024-10-23 21:20:23,397 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:20:23,418 INFO  L225             Difference]: With dead ends: 48914
[2024-10-23 21:20:23,418 INFO  L226             Difference]: Without dead ends: 24904
[2024-10-23 21:20:23,432 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:23,433 INFO  L432           NwaCegarLoop]: 455 mSDtfsCounter, 317 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-10-23 21:20:23,433 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 486 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-10-23 21:20:23,445 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24904 states.
[2024-10-23 21:20:23,573 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24904 to 19510.
[2024-10-23 21:20:23,585 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19510 states, 19509 states have (on average 1.0229637603157518) internal successors, (19957), 19509 states have internal predecessors, (19957), 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)
[2024-10-23 21:20:23,601 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19510 states to 19510 states and 19957 transitions.
[2024-10-23 21:20:23,602 INFO  L78                 Accepts]: Start accepts. Automaton has 19510 states and 19957 transitions. Word has length 895
[2024-10-23 21:20:23,602 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:20:23,602 INFO  L471      AbstractCegarLoop]: Abstraction has 19510 states and 19957 transitions.
[2024-10-23 21:20:23,602 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 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)
[2024-10-23 21:20:23,603 INFO  L276                IsEmpty]: Start isEmpty. Operand 19510 states and 19957 transitions.
[2024-10-23 21:20:23,623 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 995
[2024-10-23 21:20:23,623 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:20:23,623 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:20:23,623 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-10-23 21:20:23,624 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:20:23,624 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:20:23,624 INFO  L85        PathProgramCache]: Analyzing trace with hash -575860158, now seen corresponding path program 1 times
[2024-10-23 21:20:23,624 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:20:23,624 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227762111]
[2024-10-23 21:20:23,625 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:23,625 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:20:23,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:24,101 INFO  L134       CoverageAnalysis]: Checked inductivity of 1734 backedges. 1069 proven. 0 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked.
[2024-10-23 21:20:24,101 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:20:24,101 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227762111]
[2024-10-23 21:20:24,101 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227762111] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:20:24,101 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:20:24,101 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:20:24,102 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706185590]
[2024-10-23 21:20:24,102 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:20:24,102 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:20:24,102 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:20:24,103 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:20:24,103 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:24,104 INFO  L87              Difference]: Start difference. First operand 19510 states and 19957 transitions. Second operand  has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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)
[2024-10-23 21:20:24,908 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-23 21:20:24,909 INFO  L93              Difference]: Finished difference Result 38418 states and 39314 transitions.
[2024-10-23 21:20:24,909 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-23 21:20:24,909 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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) Word has length 994
[2024-10-23 21:20:24,910 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-23 21:20:24,925 INFO  L225             Difference]: With dead ends: 38418
[2024-10-23 21:20:24,925 INFO  L226             Difference]: Without dead ends: 19208
[2024-10-23 21:20:24,938 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:24,938 INFO  L432           NwaCegarLoop]: 415 mSDtfsCounter, 335 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-10-23 21:20:24,939 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 435 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-10-23 21:20:24,948 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19208 states.
[2024-10-23 21:20:25,122 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19208 to 18310.
[2024-10-23 21:20:25,132 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18310 states, 18309 states have (on average 1.020536348244033) internal successors, (18685), 18309 states have internal predecessors, (18685), 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)
[2024-10-23 21:20:25,153 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18310 states to 18310 states and 18685 transitions.
[2024-10-23 21:20:25,154 INFO  L78                 Accepts]: Start accepts. Automaton has 18310 states and 18685 transitions. Word has length 994
[2024-10-23 21:20:25,154 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-23 21:20:25,155 INFO  L471      AbstractCegarLoop]: Abstraction has 18310 states and 18685 transitions.
[2024-10-23 21:20:25,155 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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)
[2024-10-23 21:20:25,155 INFO  L276                IsEmpty]: Start isEmpty. Operand 18310 states and 18685 transitions.
[2024-10-23 21:20:25,177 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1159
[2024-10-23 21:20:25,178 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-23 21:20:25,178 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-23 21:20:25,178 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-10-23 21:20:25,178 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-23 21:20:25,179 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-23 21:20:25,179 INFO  L85        PathProgramCache]: Analyzing trace with hash -2090494079, now seen corresponding path program 1 times
[2024-10-23 21:20:25,179 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-23 21:20:25,179 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495445678]
[2024-10-23 21:20:25,179 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-23 21:20:25,180 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-23 21:20:25,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-23 21:20:25,873 INFO  L134       CoverageAnalysis]: Checked inductivity of 2504 backedges. 1868 proven. 0 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked.
[2024-10-23 21:20:25,873 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-23 21:20:25,873 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495445678]
[2024-10-23 21:20:25,873 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495445678] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-23 21:20:25,874 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-23 21:20:25,874 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-23 21:20:25,874 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876243680]
[2024-10-23 21:20:25,874 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-23 21:20:25,874 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-23 21:20:25,875 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-23 21:20:25,875 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-23 21:20:25,875 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-23 21:20:25,875 INFO  L87              Difference]: Start difference. First operand 18310 states and 18685 transitions. Second operand  has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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)