./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/Problem05_label15.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 84cfde4a
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label15.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 41a5add7c8e667684406561743ebee3fe485f32f0deda43b71a1c0dd2ce6fa27
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-84cfde4
[2024-10-10 22:47:13,750 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-10 22:47:13,813 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-10-10 22:47:13,820 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-10 22:47:13,823 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-10 22:47:13,844 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-10 22:47:13,845 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-10 22:47:13,845 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-10 22:47:13,846 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-10 22:47:13,846 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-10 22:47:13,846 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-10 22:47:13,847 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-10 22:47:13,847 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-10 22:47:13,848 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-10 22:47:13,848 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-10 22:47:13,849 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-10 22:47:13,849 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-10 22:47:13,850 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-10-10 22:47:13,850 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-10 22:47:13,850 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-10-10 22:47:13,851 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-10 22:47:13,853 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-10 22:47:13,853 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-10 22:47:13,854 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-10 22:47:13,854 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-10 22:47:13,854 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-10-10 22:47:13,855 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-10 22:47:13,855 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-10 22:47:13,855 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-10 22:47:13,856 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-10 22:47:13,856 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-10 22:47:13,856 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-10 22:47:13,856 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-10 22:47:13,857 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-10 22:47:13,857 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-10 22:47:13,857 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-10 22:47:13,858 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-10 22:47:13,858 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-10 22:47:13,858 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-10 22:47:13,859 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-10 22:47:13,859 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-10 22:47:13,862 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-10 22:47:13,862 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-clean/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-clean/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 -> 41a5add7c8e667684406561743ebee3fe485f32f0deda43b71a1c0dd2ce6fa27
[2024-10-10 22:47:14,106 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-10 22:47:14,147 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-10 22:47:14,155 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-10 22:47:14,156 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-10 22:47:14,156 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-10 22:47:14,158 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label15.c
[2024-10-10 22:47:15,634 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-10 22:47:16,185 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-10 22:47:16,186 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label15.c
[2024-10-10 22:47:16,240 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f769b677e/02484806ba8342b9b3010c80c951e6ba/FLAG8f4f9137b
[2024-10-10 22:47:16,256 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f769b677e/02484806ba8342b9b3010c80c951e6ba
[2024-10-10 22:47:16,259 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-10 22:47:16,260 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-10 22:47:16,262 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-10 22:47:16,263 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-10 22:47:16,268 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-10 22:47:16,268 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:47:16" (1/1) ...
[2024-10-10 22:47:16,271 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee96c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:16, skipping insertion in model container
[2024-10-10 22:47:16,271 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:47:16" (1/1) ...
[2024-10-10 22:47:16,429 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-10 22:47:17,896 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/Problem05_label15.c[376590,376603]
[2024-10-10 22:47:17,920 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-10 22:47:17,930 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-10 22:47:18,677 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/Problem05_label15.c[376590,376603]
[2024-10-10 22:47:18,684 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-10 22:47:18,736 INFO  L204         MainTranslator]: Completed translation
[2024-10-10 22:47:18,737 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18 WrapperNode
[2024-10-10 22:47:18,737 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-10 22:47:18,738 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-10 22:47:18,739 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-10 22:47:18,739 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-10 22:47:18,745 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:18,869 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,352 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12354
[2024-10-10 22:47:19,353 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-10 22:47:19,354 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-10 22:47:19,354 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-10 22:47:19,354 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-10 22:47:19,365 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,365 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,452 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,542 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].
[2024-10-10 22:47:19,542 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,542 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,716 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,757 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,783 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,808 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,871 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-10 22:47:19,872 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-10 22:47:19,872 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-10 22:47:19,872 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-10 22:47:19,873 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (1/1) ...
[2024-10-10 22:47:19,881 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-10 22:47:19,961 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3
[2024-10-10 22:47:19,977 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-10-10 22:47:19,983 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-10-10 22:47:20,024 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-10 22:47:20,024 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-10 22:47:20,024 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-10 22:47:20,025 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-10 22:47:20,101 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-10 22:47:20,104 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-10 22:47:27,941 INFO  L?                        ?]: Removed 1656 outVars from TransFormulas that were not future-live.
[2024-10-10 22:47:27,942 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-10 22:47:28,051 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-10 22:47:28,052 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-10 22:47:28,052 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:47:28 BoogieIcfgContainer
[2024-10-10 22:47:28,053 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-10 22:47:28,056 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-10 22:47:28,058 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-10 22:47:28,061 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-10 22:47:28,061 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 10:47:16" (1/3) ...
[2024-10-10 22:47:28,062 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ded2248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:47:28, skipping insertion in model container
[2024-10-10 22:47:28,062 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:47:18" (2/3) ...
[2024-10-10 22:47:28,063 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ded2248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:47:28, skipping insertion in model container
[2024-10-10 22:47:28,063 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:47:28" (3/3) ...
[2024-10-10 22:47:28,064 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label15.c
[2024-10-10 22:47:28,081 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-10 22:47:28,081 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-10 22:47:28,197 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-10 22:47:28,205 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;@6ccb0e86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-10 22:47:28,205 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-10 22:47:28,215 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2123 states, 2121 states have (on average 1.8962753418198963) internal successors, (4022), 2122 states have internal predecessors, (4022), 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)
[2024-10-10 22:47:28,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1650
[2024-10-10 22:47:28,310 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:47:28,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:47:28,313 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:47:28,318 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:47:28,319 INFO  L85        PathProgramCache]: Analyzing trace with hash -1885913438, now seen corresponding path program 1 times
[2024-10-10 22:47:28,327 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:47:28,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823615607]
[2024-10-10 22:47:28,328 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:47:28,329 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:47:29,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:47:30,642 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:47:30,643 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:47:30,644 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823615607]
[2024-10-10 22:47:30,645 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823615607] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:47:30,645 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:47:30,645 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 22:47:30,647 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4012297]
[2024-10-10 22:47:30,648 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:47:30,656 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-10-10 22:47:30,657 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:47:30,689 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-10-10 22:47:30,689 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-10-10 22:47:30,698 INFO  L87              Difference]: Start difference. First operand  has 2123 states, 2121 states have (on average 1.8962753418198963) internal successors, (4022), 2122 states have internal predecessors, (4022), 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 824.5) internal successors, (1649), 2 states have internal predecessors, (1649), 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)
[2024-10-10 22:47:30,827 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:47:30,828 INFO  L93              Difference]: Finished difference Result 4245 states and 8043 transitions.
[2024-10-10 22:47:30,829 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-10 22:47:30,832 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 824.5) internal successors, (1649), 2 states have internal predecessors, (1649), 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 1649
[2024-10-10 22:47:30,838 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:47:30,869 INFO  L225             Difference]: With dead ends: 4245
[2024-10-10 22:47:30,870 INFO  L226             Difference]: Without dead ends: 2121
[2024-10-10 22:47:30,882 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
[2024-10-10 22:47:30,885 INFO  L432           NwaCegarLoop]: 3957 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, 3957 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
[2024-10-10 22:47:30,889 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3957 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-10 22:47:30,910 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2121 states.
[2024-10-10 22:47:31,003 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121.
[2024-10-10 22:47:31,009 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2121 states, 2120 states have (on average 1.866509433962264) internal successors, (3957), 2120 states have internal predecessors, (3957), 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)
[2024-10-10 22:47:31,018 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3957 transitions.
[2024-10-10 22:47:31,020 INFO  L78                 Accepts]: Start accepts. Automaton has 2121 states and 3957 transitions. Word has length 1649
[2024-10-10 22:47:31,027 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:47:31,027 INFO  L471      AbstractCegarLoop]: Abstraction has 2121 states and 3957 transitions.
[2024-10-10 22:47:31,028 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 824.5) internal successors, (1649), 2 states have internal predecessors, (1649), 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)
[2024-10-10 22:47:31,029 INFO  L276                IsEmpty]: Start isEmpty. Operand 2121 states and 3957 transitions.
[2024-10-10 22:47:31,105 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1650
[2024-10-10 22:47:31,106 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:47:31,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:47:31,107 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-10 22:47:31,108 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:47:31,108 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:47:31,109 INFO  L85        PathProgramCache]: Analyzing trace with hash -138952544, now seen corresponding path program 1 times
[2024-10-10 22:47:31,109 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:47:31,110 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517112675]
[2024-10-10 22:47:31,110 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:47:31,110 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:47:31,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:47:34,222 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:47:34,223 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:47:34,223 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517112675]
[2024-10-10 22:47:34,224 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517112675] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:47:34,224 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:47:34,225 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 22:47:34,225 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928899749]
[2024-10-10 22:47:34,225 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:47:34,230 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-10 22:47:34,231 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:47:34,234 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-10 22:47:34,235 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-10 22:47:34,237 INFO  L87              Difference]: Start difference. First operand 2121 states and 3957 transitions. Second operand  has 3 states, 3 states have (on average 549.6666666666666) internal successors, (1649), 2 states have internal predecessors, (1649), 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)
[2024-10-10 22:47:40,412 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:47:40,412 INFO  L93              Difference]: Finished difference Result 6026 states and 11333 transitions.
[2024-10-10 22:47:40,413 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-10 22:47:40,414 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 549.6666666666666) internal successors, (1649), 2 states have internal predecessors, (1649), 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 1649
[2024-10-10 22:47:40,421 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:47:40,443 INFO  L225             Difference]: With dead ends: 6026
[2024-10-10 22:47:40,443 INFO  L226             Difference]: Without dead ends: 3906
[2024-10-10 22:47:40,450 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
[2024-10-10 22:47:40,451 INFO  L432           NwaCegarLoop]: 1705 mSDtfsCounter, 312 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 5545 mSolverCounterSat, 1409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 6954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1409 IncrementalHoareTripleChecker+Valid, 5545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time
[2024-10-10 22:47:40,451 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 2015 Invalid, 6954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1409 Valid, 5545 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time]
[2024-10-10 22:47:40,460 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3906 states.
[2024-10-10 22:47:40,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 3899.
[2024-10-10 22:47:40,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3899 states, 3898 states have (on average 1.6198050282195997) internal successors, (6314), 3898 states have internal predecessors, (6314), 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)
[2024-10-10 22:47:40,625 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 6314 transitions.
[2024-10-10 22:47:40,626 INFO  L78                 Accepts]: Start accepts. Automaton has 3899 states and 6314 transitions. Word has length 1649
[2024-10-10 22:47:40,629 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:47:40,630 INFO  L471      AbstractCegarLoop]: Abstraction has 3899 states and 6314 transitions.
[2024-10-10 22:47:40,631 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 549.6666666666666) internal successors, (1649), 2 states have internal predecessors, (1649), 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)
[2024-10-10 22:47:40,631 INFO  L276                IsEmpty]: Start isEmpty. Operand 3899 states and 6314 transitions.
[2024-10-10 22:47:40,665 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1655
[2024-10-10 22:47:40,666 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:47:40,667 INFO  L215           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:47:40,667 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-10 22:47:40,668 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:47:40,668 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:47:40,669 INFO  L85        PathProgramCache]: Analyzing trace with hash 1315045008, now seen corresponding path program 1 times
[2024-10-10 22:47:40,669 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:47:40,669 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127243218]
[2024-10-10 22:47:40,670 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:47:40,670 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:47:40,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:47:42,244 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:47:42,244 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:47:42,244 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127243218]
[2024-10-10 22:47:42,245 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127243218] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:47:42,245 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:47:42,245 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 22:47:42,245 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586075691]
[2024-10-10 22:47:42,246 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:47:42,249 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-10 22:47:42,250 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:47:42,254 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-10 22:47:42,254 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-10 22:47:42,258 INFO  L87              Difference]: Start difference. First operand 3899 states and 6314 transitions. Second operand  has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 2 states have internal predecessors, (1654), 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)
[2024-10-10 22:47:48,108 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:47:48,108 INFO  L93              Difference]: Finished difference Result 11342 states and 18472 transitions.
[2024-10-10 22:47:48,109 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-10 22:47:48,110 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 2 states have internal predecessors, (1654), 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 1654
[2024-10-10 22:47:48,110 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:47:48,142 INFO  L225             Difference]: With dead ends: 11342
[2024-10-10 22:47:48,142 INFO  L226             Difference]: Without dead ends: 7444
[2024-10-10 22:47:48,153 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
[2024-10-10 22:47:48,154 INFO  L432           NwaCegarLoop]: 1346 mSDtfsCounter, 1996 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 5242 mSolverCounterSat, 2351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 7593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2351 IncrementalHoareTripleChecker+Valid, 5242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time
[2024-10-10 22:47:48,154 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 1566 Invalid, 7593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2351 Valid, 5242 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time]
[2024-10-10 22:47:48,164 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7444 states.
[2024-10-10 22:47:48,273 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7444 to 7360.
[2024-10-10 22:47:48,287 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7360 states, 7359 states have (on average 1.5041445848620736) internal successors, (11069), 7359 states have internal predecessors, (11069), 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)
[2024-10-10 22:47:48,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 11069 transitions.
[2024-10-10 22:47:48,301 INFO  L78                 Accepts]: Start accepts. Automaton has 7360 states and 11069 transitions. Word has length 1654
[2024-10-10 22:47:48,301 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:47:48,301 INFO  L471      AbstractCegarLoop]: Abstraction has 7360 states and 11069 transitions.
[2024-10-10 22:47:48,303 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 2 states have internal predecessors, (1654), 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)
[2024-10-10 22:47:48,305 INFO  L276                IsEmpty]: Start isEmpty. Operand 7360 states and 11069 transitions.
[2024-10-10 22:47:48,333 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1657
[2024-10-10 22:47:48,333 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:47:48,334 INFO  L215           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:47:48,334 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-10 22:47:48,335 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:47:48,335 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:47:48,336 INFO  L85        PathProgramCache]: Analyzing trace with hash -406210037, now seen corresponding path program 1 times
[2024-10-10 22:47:48,336 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:47:48,336 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525377451]
[2024-10-10 22:47:48,337 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:47:48,337 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:47:48,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:47:51,234 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:47:51,235 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:47:51,235 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525377451]
[2024-10-10 22:47:51,235 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525377451] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:47:51,235 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:47:51,236 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-10 22:47:51,236 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330161811]
[2024-10-10 22:47:51,236 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:47:51,238 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-10 22:47:51,238 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:47:51,239 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-10 22:47:51,239 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-10-10 22:47:51,240 INFO  L87              Difference]: Start difference. First operand 7360 states and 11069 transitions. Second operand  has 4 states, 4 states have (on average 414.0) internal successors, (1656), 3 states have internal predecessors, (1656), 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)
[2024-10-10 22:48:00,120 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:48:00,120 INFO  L93              Difference]: Finished difference Result 23147 states and 35020 transitions.
[2024-10-10 22:48:00,120 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-10 22:48:00,121 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 414.0) internal successors, (1656), 3 states have internal predecessors, (1656), 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 1656
[2024-10-10 22:48:00,124 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:48:00,186 INFO  L225             Difference]: With dead ends: 23147
[2024-10-10 22:48:00,187 INFO  L226             Difference]: Without dead ends: 14136
[2024-10-10 22:48:00,203 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
[2024-10-10 22:48:00,205 INFO  L432           NwaCegarLoop]: 1030 mSDtfsCounter, 3045 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 9245 mSolverCounterSat, 4050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 13295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4050 IncrementalHoareTripleChecker+Valid, 9245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time
[2024-10-10 22:48:00,206 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3045 Valid, 1297 Invalid, 13295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4050 Valid, 9245 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time]
[2024-10-10 22:48:00,227 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14136 states.
[2024-10-10 22:48:00,482 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14136 to 14136.
[2024-10-10 22:48:00,510 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14136 states, 14135 states have (on average 1.242235585426247) internal successors, (17559), 14135 states have internal predecessors, (17559), 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)
[2024-10-10 22:48:00,541 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14136 states to 14136 states and 17559 transitions.
[2024-10-10 22:48:00,542 INFO  L78                 Accepts]: Start accepts. Automaton has 14136 states and 17559 transitions. Word has length 1656
[2024-10-10 22:48:00,542 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:48:00,542 INFO  L471      AbstractCegarLoop]: Abstraction has 14136 states and 17559 transitions.
[2024-10-10 22:48:00,544 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 414.0) internal successors, (1656), 3 states have internal predecessors, (1656), 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)
[2024-10-10 22:48:00,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 14136 states and 17559 transitions.
[2024-10-10 22:48:00,580 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1668
[2024-10-10 22:48:00,581 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:48:00,582 INFO  L215           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:48:00,582 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-10 22:48:00,583 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:48:00,583 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:48:00,584 INFO  L85        PathProgramCache]: Analyzing trace with hash -440600846, now seen corresponding path program 1 times
[2024-10-10 22:48:00,584 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:48:00,584 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212122846]
[2024-10-10 22:48:00,585 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:48:00,585 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:48:00,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:48:01,897 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:48:01,897 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:48:01,898 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212122846]
[2024-10-10 22:48:01,898 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212122846] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:48:01,898 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:48:01,898 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-10 22:48:01,898 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581168141]
[2024-10-10 22:48:01,899 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:48:01,900 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-10 22:48:01,901 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:48:01,902 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-10 22:48:01,902 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-10 22:48:01,903 INFO  L87              Difference]: Start difference. First operand 14136 states and 17559 transitions. Second operand  has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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)
[2024-10-10 22:48:06,073 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:48:06,073 INFO  L93              Difference]: Finished difference Result 35138 states and 43225 transitions.
[2024-10-10 22:48:06,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-10 22:48:06,074 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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 1667
[2024-10-10 22:48:06,076 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:48:06,112 INFO  L225             Difference]: With dead ends: 35138
[2024-10-10 22:48:06,112 INFO  L226             Difference]: Without dead ends: 21003
[2024-10-10 22:48:06,125 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
[2024-10-10 22:48:06,126 INFO  L432           NwaCegarLoop]: 3226 mSDtfsCounter, 190 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 5085 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 3464 SdHoareTripleChecker+Invalid, 5508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 5085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2024-10-10 22:48:06,126 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 3464 Invalid, 5508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 5085 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2024-10-10 22:48:06,143 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21003 states.
[2024-10-10 22:48:06,369 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21003 to 20935.
[2024-10-10 22:48:06,391 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20935 states, 20934 states have (on average 1.2018725518295597) internal successors, (25160), 20934 states have internal predecessors, (25160), 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)
[2024-10-10 22:48:06,416 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20935 states to 20935 states and 25160 transitions.
[2024-10-10 22:48:06,416 INFO  L78                 Accepts]: Start accepts. Automaton has 20935 states and 25160 transitions. Word has length 1667
[2024-10-10 22:48:06,420 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:48:06,420 INFO  L471      AbstractCegarLoop]: Abstraction has 20935 states and 25160 transitions.
[2024-10-10 22:48:06,421 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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)
[2024-10-10 22:48:06,421 INFO  L276                IsEmpty]: Start isEmpty. Operand 20935 states and 25160 transitions.
[2024-10-10 22:48:06,463 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1684
[2024-10-10 22:48:06,464 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:48:06,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:48:06,465 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-10 22:48:06,465 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:48:06,465 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:48:06,466 INFO  L85        PathProgramCache]: Analyzing trace with hash 1691063750, now seen corresponding path program 1 times
[2024-10-10 22:48:06,466 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:48:06,467 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966001172]
[2024-10-10 22:48:06,467 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:48:06,467 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:48:06,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:48:07,296 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:48:07,297 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:48:07,297 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966001172]
[2024-10-10 22:48:07,297 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966001172] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:48:07,297 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:48:07,298 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 22:48:07,298 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991912471]
[2024-10-10 22:48:07,298 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:48:07,300 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-10 22:48:07,300 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:48:07,301 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-10 22:48:07,302 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-10 22:48:07,302 INFO  L87              Difference]: Start difference. First operand 20935 states and 25160 transitions. Second operand  has 3 states, 3 states have (on average 561.0) internal successors, (1683), 2 states have internal predecessors, (1683), 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)
[2024-10-10 22:48:11,801 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:48:11,802 INFO  L93              Difference]: Finished difference Result 62282 states and 74804 transitions.
[2024-10-10 22:48:11,802 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-10 22:48:11,803 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 561.0) internal successors, (1683), 2 states have internal predecessors, (1683), 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 1683
[2024-10-10 22:48:11,803 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:48:11,881 INFO  L225             Difference]: With dead ends: 62282
[2024-10-10 22:48:11,882 INFO  L226             Difference]: Without dead ends: 41348
[2024-10-10 22:48:11,904 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
[2024-10-10 22:48:11,907 INFO  L432           NwaCegarLoop]: 1027 mSDtfsCounter, 2060 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 4585 mSolverCounterSat, 1343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 5928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1343 IncrementalHoareTripleChecker+Valid, 4585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-10-10 22:48:11,907 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 1190 Invalid, 5928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1343 Valid, 4585 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2024-10-10 22:48:11,948 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41348 states.
[2024-10-10 22:48:12,347 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41348 to 41325.
[2024-10-10 22:48:12,391 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41325 states, 41324 states have (on average 1.1697560739521828) internal successors, (48339), 41324 states have internal predecessors, (48339), 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)
[2024-10-10 22:48:12,441 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41325 states to 41325 states and 48339 transitions.
[2024-10-10 22:48:12,443 INFO  L78                 Accepts]: Start accepts. Automaton has 41325 states and 48339 transitions. Word has length 1683
[2024-10-10 22:48:12,445 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:48:12,445 INFO  L471      AbstractCegarLoop]: Abstraction has 41325 states and 48339 transitions.
[2024-10-10 22:48:12,446 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 561.0) internal successors, (1683), 2 states have internal predecessors, (1683), 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)
[2024-10-10 22:48:12,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 41325 states and 48339 transitions.
[2024-10-10 22:48:12,519 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1686
[2024-10-10 22:48:12,520 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:48:12,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:48:12,521 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-10-10 22:48:12,521 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:48:12,521 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:48:12,522 INFO  L85        PathProgramCache]: Analyzing trace with hash -1514430953, now seen corresponding path program 1 times
[2024-10-10 22:48:12,522 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:48:12,522 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806475256]
[2024-10-10 22:48:12,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:48:12,523 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:48:12,707 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:48:13,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:48:13,533 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:48:13,533 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806475256]
[2024-10-10 22:48:13,533 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806475256] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:48:13,533 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:48:13,534 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 22:48:13,534 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574036642]
[2024-10-10 22:48:13,534 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:48:13,535 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-10 22:48:13,536 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:48:13,537 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-10 22:48:13,538 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-10 22:48:13,538 INFO  L87              Difference]: Start difference. First operand 41325 states and 48339 transitions. Second operand  has 3 states, 3 states have (on average 561.6666666666666) internal successors, (1685), 2 states have internal predecessors, (1685), 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)
[2024-10-10 22:48:17,873 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:48:17,873 INFO  L93              Difference]: Finished difference Result 103049 states and 119887 transitions.
[2024-10-10 22:48:17,873 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-10 22:48:17,874 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 561.6666666666666) internal successors, (1685), 2 states have internal predecessors, (1685), 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 1685
[2024-10-10 22:48:17,874 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:48:17,975 INFO  L225             Difference]: With dead ends: 103049
[2024-10-10 22:48:17,976 INFO  L226             Difference]: Without dead ends: 61725
[2024-10-10 22:48:18,020 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
[2024-10-10 22:48:18,023 INFO  L432           NwaCegarLoop]: 981 mSDtfsCounter, 2098 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 4510 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 5658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 4510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2024-10-10 22:48:18,023 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 1116 Invalid, 5658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1148 Valid, 4510 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2024-10-10 22:48:18,077 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61725 states.
[2024-10-10 22:48:18,550 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61725 to 61707.
[2024-10-10 22:48:18,601 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61707 states, 61706 states have (on average 1.1148348620879656) internal successors, (68792), 61706 states have internal predecessors, (68792), 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)
[2024-10-10 22:48:18,680 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61707 states to 61707 states and 68792 transitions.
[2024-10-10 22:48:18,680 INFO  L78                 Accepts]: Start accepts. Automaton has 61707 states and 68792 transitions. Word has length 1685
[2024-10-10 22:48:18,680 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:48:18,681 INFO  L471      AbstractCegarLoop]: Abstraction has 61707 states and 68792 transitions.
[2024-10-10 22:48:18,681 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 561.6666666666666) internal successors, (1685), 2 states have internal predecessors, (1685), 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)
[2024-10-10 22:48:18,682 INFO  L276                IsEmpty]: Start isEmpty. Operand 61707 states and 68792 transitions.
[2024-10-10 22:48:18,760 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1779
[2024-10-10 22:48:18,760 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:48:18,761 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:48:18,762 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-10-10 22:48:18,762 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:48:18,762 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:48:18,763 INFO  L85        PathProgramCache]: Analyzing trace with hash 810953655, now seen corresponding path program 1 times
[2024-10-10 22:48:18,763 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:48:18,763 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670025382]
[2024-10-10 22:48:18,763 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:48:18,763 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:48:19,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:48:19,924 INFO  L134       CoverageAnalysis]: Checked inductivity of 180 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked.
[2024-10-10 22:48:19,924 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:48:19,925 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670025382]
[2024-10-10 22:48:19,925 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670025382] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:48:19,925 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:48:19,925 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 22:48:19,925 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479362152]
[2024-10-10 22:48:19,926 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:48:19,928 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-10 22:48:19,928 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:48:19,930 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-10 22:48:19,930 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-10 22:48:19,930 INFO  L87              Difference]: Start difference. First operand 61707 states and 68792 transitions. Second operand  has 3 states, 3 states have (on average 558.0) internal successors, (1674), 2 states have internal predecessors, (1674), 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)
[2024-10-10 22:48:25,039 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:48:25,040 INFO  L93              Difference]: Finished difference Result 182844 states and 203834 transitions.
[2024-10-10 22:48:25,040 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-10 22:48:25,041 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 558.0) internal successors, (1674), 2 states have internal predecessors, (1674), 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 1778
[2024-10-10 22:48:25,041 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:48:25,231 INFO  L225             Difference]: With dead ends: 182844
[2024-10-10 22:48:25,232 INFO  L226             Difference]: Without dead ends: 121138
[2024-10-10 22:48:25,312 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
[2024-10-10 22:48:25,314 INFO  L432           NwaCegarLoop]: 1050 mSDtfsCounter, 2375 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4637 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 5547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 4637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-10-10 22:48:25,315 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 1221 Invalid, 5547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [910 Valid, 4637 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2024-10-10 22:48:25,410 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121138 states.
[2024-10-10 22:48:26,640 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121138 to 121136.
[2024-10-10 22:48:26,727 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 121136 states, 121135 states have (on average 1.0851776943080034) internal successors, (131453), 121135 states have internal predecessors, (131453), 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)
[2024-10-10 22:48:26,894 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 121136 states to 121136 states and 131453 transitions.
[2024-10-10 22:48:26,896 INFO  L78                 Accepts]: Start accepts. Automaton has 121136 states and 131453 transitions. Word has length 1778
[2024-10-10 22:48:26,896 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:48:26,896 INFO  L471      AbstractCegarLoop]: Abstraction has 121136 states and 131453 transitions.
[2024-10-10 22:48:26,897 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 558.0) internal successors, (1674), 2 states have internal predecessors, (1674), 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)
[2024-10-10 22:48:26,897 INFO  L276                IsEmpty]: Start isEmpty. Operand 121136 states and 131453 transitions.
[2024-10-10 22:48:27,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1845
[2024-10-10 22:48:27,310 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:48:27,311 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:48:27,311 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-10-10 22:48:27,315 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:48:27,316 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:48:27,316 INFO  L85        PathProgramCache]: Analyzing trace with hash -102702566, now seen corresponding path program 1 times
[2024-10-10 22:48:27,316 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:48:27,316 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588992764]
[2024-10-10 22:48:27,317 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:48:27,317 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:48:27,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:48:28,304 INFO  L134       CoverageAnalysis]: Checked inductivity of 282 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked.
[2024-10-10 22:48:28,304 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:48:28,304 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588992764]
[2024-10-10 22:48:28,304 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588992764] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:48:28,304 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:48:28,304 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 22:48:28,305 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273918775]
[2024-10-10 22:48:28,305 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:48:28,306 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-10 22:48:28,306 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:48:28,308 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-10 22:48:28,308 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-10 22:48:28,309 INFO  L87              Difference]: Start difference. First operand 121136 states and 131453 transitions. Second operand  has 3 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 2 states have internal predecessors, (1756), 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)