./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label08.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version c7c6ca5d
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem16_label08.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1b9d76937d81be7e84b48dddf4b490b52b3e309033b5807eced0086597e1f6f
--- Real Ultimate output ---
This is Ultimate 0.2.5-?-c7c6ca5-m
[2024-11-08 11:32:59,190 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 11:32:59,268 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 11:32:59,274 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 11:32:59,275 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 11:32:59,298 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 11:32:59,299 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 11:32:59,299 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 11:32:59,300 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 11:32:59,301 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 11:32:59,301 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 11:32:59,302 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 11:32:59,302 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 11:32:59,302 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 11:32:59,304 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 11:32:59,304 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 11:32:59,304 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 11:32:59,305 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-08 11:32:59,305 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 11:32:59,305 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-08 11:32:59,305 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 11:32:59,306 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 11:32:59,308 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 11:32:59,308 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 11:32:59,308 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 11:32:59,308 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-08 11:32:59,308 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 11:32:59,309 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 11:32:59,309 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 11:32:59,309 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 11:32:59,309 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 11:32:59,309 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 11:32:59,309 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 11:32:59,310 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 11:32:59,310 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 11:32:59,310 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 11:32:59,310 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 11:32:59,310 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 11:32:59,310 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 11:32:59,310 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 11:32:59,310 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 11:32:59,311 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 11:32:59,312 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1b9d76937d81be7e84b48dddf4b490b52b3e309033b5807eced0086597e1f6f
[2024-11-08 11:32:59,489 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 11:32:59,508 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 11:32:59,510 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 11:32:59,511 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 11:32:59,511 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 11:32:59,512 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label08.c
[2024-11-08 11:33:00,862 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 11:33:01,085 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 11:33:01,086 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label08.c
[2024-11-08 11:33:01,103 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d89a558e/702d5eefa982411a8664a6b37e6467a9/FLAGe888f1229
[2024-11-08 11:33:01,117 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d89a558e/702d5eefa982411a8664a6b37e6467a9
[2024-11-08 11:33:01,119 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 11:33:01,120 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 11:33:01,121 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 11:33:01,121 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 11:33:01,130 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 11:33:01,131 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,133 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cdc80ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01, skipping insertion in model container
[2024-11-08 11:33:01,133 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,172 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 11:33:01,324 WARN  L250   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/Problem16_label08.c[2006,2019]
[2024-11-08 11:33:01,570 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 11:33:01,577 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 11:33:01,587 WARN  L250   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/Problem16_label08.c[2006,2019]
[2024-11-08 11:33:01,701 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 11:33:01,716 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 11:33:01,716 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01 WrapperNode
[2024-11-08 11:33:01,716 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 11:33:01,717 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 11:33:01,718 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 11:33:01,718 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 11:33:01,722 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,751 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,836 INFO  L138                Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770
[2024-11-08 11:33:01,837 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 11:33:01,837 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 11:33:01,837 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 11:33:01,837 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 11:33:01,845 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,846 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,906 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,942 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].
[2024-11-08 11:33:01,943 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,943 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,975 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,982 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,990 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:01,999 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:02,009 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 11:33:02,010 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 11:33:02,010 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 11:33:02,010 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 11:33:02,011 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (1/1) ...
[2024-11-08 11:33:02,015 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 11:33:02,022 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:33:02,035 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 11:33:02,041 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 11:33:02,130 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 11:33:02,130 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 11:33:02,130 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 11:33:02,131 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 11:33:02,182 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 11:33:02,184 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 11:33:03,775 INFO  L?                        ?]: Removed 276 outVars from TransFormulas that were not future-live.
[2024-11-08 11:33:03,776 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 11:33:03,800 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 11:33:03,802 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 11:33:03,803 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:33:03 BoogieIcfgContainer
[2024-11-08 11:33:03,803 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 11:33:03,804 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 11:33:03,805 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 11:33:03,807 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 11:33:03,808 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:33:01" (1/3) ...
[2024-11-08 11:33:03,808 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b1f9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:33:03, skipping insertion in model container
[2024-11-08 11:33:03,808 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:33:01" (2/3) ...
[2024-11-08 11:33:03,809 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b1f9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:33:03, skipping insertion in model container
[2024-11-08 11:33:03,809 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:33:03" (3/3) ...
[2024-11-08 11:33:03,810 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem16_label08.c
[2024-11-08 11:33:03,825 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 11:33:03,826 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 11:33:03,904 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 11:33:03,910 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;@378c1a67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 11:33:03,911 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 11:33:03,916 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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)
[2024-11-08 11:33:03,922 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 11:33:03,924 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:03,924 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:03,925 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:03,929 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:03,930 INFO  L85        PathProgramCache]: Analyzing trace with hash 156847385, now seen corresponding path program 1 times
[2024-11-08 11:33:03,938 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:03,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649643716]
[2024-11-08 11:33:03,939 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:03,940 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:04,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:04,148 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:33:04,149 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:04,149 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649643716]
[2024-11-08 11:33:04,149 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649643716] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:04,150 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:04,150 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:33:04,151 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314784269]
[2024-11-08 11:33:04,152 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:04,183 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:04,183 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:04,213 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:04,214 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:04,221 INFO  L87              Difference]: Start difference. First operand  has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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)
[2024-11-08 11:33:05,501 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:05,502 INFO  L93              Difference]: Finished difference Result 1122 states and 2103 transitions.
[2024-11-08 11:33:05,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:05,504 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 17
[2024-11-08 11:33:05,504 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:05,515 INFO  L225             Difference]: With dead ends: 1122
[2024-11-08 11:33:05,515 INFO  L226             Difference]: Without dead ends: 662
[2024-11-08 11:33:05,518 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
[2024-11-08 11:33:05,520 INFO  L432           NwaCegarLoop]: 246 mSDtfsCounter, 370 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:05,521 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 254 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-08 11:33:05,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 662 states.
[2024-11-08 11:33:05,569 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662.
[2024-11-08 11:33:05,571 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 662 states, 661 states have (on average 1.518910741301059) internal successors, (1004), 661 states have internal predecessors, (1004), 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)
[2024-11-08 11:33:05,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1004 transitions.
[2024-11-08 11:33:05,574 INFO  L78                 Accepts]: Start accepts. Automaton has 662 states and 1004 transitions. Word has length 17
[2024-11-08 11:33:05,574 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:05,574 INFO  L471      AbstractCegarLoop]: Abstraction has 662 states and 1004 transitions.
[2024-11-08 11:33:05,574 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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)
[2024-11-08 11:33:05,574 INFO  L276                IsEmpty]: Start isEmpty. Operand 662 states and 1004 transitions.
[2024-11-08 11:33:05,576 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2024-11-08 11:33:05,576 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:05,576 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 11:33:05,576 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 11:33:05,577 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:05,577 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:05,577 INFO  L85        PathProgramCache]: Analyzing trace with hash 561671166, now seen corresponding path program 1 times
[2024-11-08 11:33:05,577 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:05,578 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010575780]
[2024-11-08 11:33:05,578 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:05,578 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:05,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:05,803 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:33:05,803 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:05,803 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010575780]
[2024-11-08 11:33:05,803 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010575780] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:05,803 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:05,803 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:33:05,803 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582040674]
[2024-11-08 11:33:05,804 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:05,805 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:05,805 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:05,808 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:05,808 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:05,809 INFO  L87              Difference]: Start difference. First operand 662 states and 1004 transitions. Second operand  has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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)
[2024-11-08 11:33:07,407 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:07,407 INFO  L93              Difference]: Finished difference Result 1982 states and 3008 transitions.
[2024-11-08 11:33:07,408 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:07,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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 85
[2024-11-08 11:33:07,409 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:07,417 INFO  L225             Difference]: With dead ends: 1982
[2024-11-08 11:33:07,417 INFO  L226             Difference]: Without dead ends: 1322
[2024-11-08 11:33:07,424 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
[2024-11-08 11:33:07,425 INFO  L432           NwaCegarLoop]: 213 mSDtfsCounter, 270 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:07,426 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 218 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-08 11:33:07,428 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1322 states.
[2024-11-08 11:33:07,480 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1320.
[2024-11-08 11:33:07,483 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1320 states, 1319 states have (on average 1.4564063684609552) internal successors, (1921), 1319 states have internal predecessors, (1921), 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)
[2024-11-08 11:33:07,486 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1921 transitions.
[2024-11-08 11:33:07,491 INFO  L78                 Accepts]: Start accepts. Automaton has 1320 states and 1921 transitions. Word has length 85
[2024-11-08 11:33:07,491 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:07,491 INFO  L471      AbstractCegarLoop]: Abstraction has 1320 states and 1921 transitions.
[2024-11-08 11:33:07,491 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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)
[2024-11-08 11:33:07,492 INFO  L276                IsEmpty]: Start isEmpty. Operand 1320 states and 1921 transitions.
[2024-11-08 11:33:07,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 97
[2024-11-08 11:33:07,493 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:07,493 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 11:33:07,493 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 11:33:07,494 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:07,494 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:07,501 INFO  L85        PathProgramCache]: Analyzing trace with hash 1086395223, now seen corresponding path program 1 times
[2024-11-08 11:33:07,501 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:07,502 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36226076]
[2024-11-08 11:33:07,502 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:07,502 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:07,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:07,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:33:07,737 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:07,737 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36226076]
[2024-11-08 11:33:07,738 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36226076] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:07,738 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:07,738 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:33:07,738 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103211090]
[2024-11-08 11:33:07,738 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:07,738 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:07,738 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:07,739 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:07,739 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:07,739 INFO  L87              Difference]: Start difference. First operand 1320 states and 1921 transitions. Second operand  has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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)
[2024-11-08 11:33:09,360 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:09,360 INFO  L93              Difference]: Finished difference Result 3954 states and 5758 transitions.
[2024-11-08 11:33:09,360 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:09,361 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 96
[2024-11-08 11:33:09,361 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:09,371 INFO  L225             Difference]: With dead ends: 3954
[2024-11-08 11:33:09,371 INFO  L226             Difference]: Without dead ends: 2636
[2024-11-08 11:33:09,374 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
[2024-11-08 11:33:09,374 INFO  L432           NwaCegarLoop]: 151 mSDtfsCounter, 369 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:09,378 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 155 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-08 11:33:09,381 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2636 states.
[2024-11-08 11:33:09,412 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636.
[2024-11-08 11:33:09,415 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2636 states, 2635 states have (on average 1.3248576850094878) internal successors, (3491), 2635 states have internal predecessors, (3491), 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)
[2024-11-08 11:33:09,420 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3491 transitions.
[2024-11-08 11:33:09,421 INFO  L78                 Accepts]: Start accepts. Automaton has 2636 states and 3491 transitions. Word has length 96
[2024-11-08 11:33:09,421 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:09,422 INFO  L471      AbstractCegarLoop]: Abstraction has 2636 states and 3491 transitions.
[2024-11-08 11:33:09,422 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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)
[2024-11-08 11:33:09,422 INFO  L276                IsEmpty]: Start isEmpty. Operand 2636 states and 3491 transitions.
[2024-11-08 11:33:09,426 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2024-11-08 11:33:09,426 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:09,426 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 11:33:09,426 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 11:33:09,427 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:09,427 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:09,427 INFO  L85        PathProgramCache]: Analyzing trace with hash 2122542105, now seen corresponding path program 1 times
[2024-11-08 11:33:09,427 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:09,427 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370945250]
[2024-11-08 11:33:09,428 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:09,428 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:09,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:09,823 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:33:09,823 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:09,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370945250]
[2024-11-08 11:33:09,823 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370945250] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:09,823 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:09,824 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:33:09,824 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35416621]
[2024-11-08 11:33:09,824 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:09,824 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:09,824 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:09,825 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:09,825 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:09,830 INFO  L87              Difference]: Start difference. First operand 2636 states and 3491 transitions. Second operand  has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:33:10,851 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:10,851 INFO  L93              Difference]: Finished difference Result 6586 states and 8550 transitions.
[2024-11-08 11:33:10,851 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:10,852 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148
[2024-11-08 11:33:10,852 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:10,862 INFO  L225             Difference]: With dead ends: 6586
[2024-11-08 11:33:10,862 INFO  L226             Difference]: Without dead ends: 3952
[2024-11-08 11:33:10,866 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
[2024-11-08 11:33:10,869 INFO  L432           NwaCegarLoop]: 79 mSDtfsCounter, 278 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:10,869 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 83 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-08 11:33:10,873 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3952 states.
[2024-11-08 11:33:10,906 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952.
[2024-11-08 11:33:10,910 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3952 states, 3951 states have (on average 1.2171602126044039) internal successors, (4809), 3951 states have internal predecessors, (4809), 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)
[2024-11-08 11:33:10,916 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4809 transitions.
[2024-11-08 11:33:10,916 INFO  L78                 Accepts]: Start accepts. Automaton has 3952 states and 4809 transitions. Word has length 148
[2024-11-08 11:33:10,917 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:10,917 INFO  L471      AbstractCegarLoop]: Abstraction has 3952 states and 4809 transitions.
[2024-11-08 11:33:10,918 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 11:33:10,918 INFO  L276                IsEmpty]: Start isEmpty. Operand 3952 states and 4809 transitions.
[2024-11-08 11:33:10,921 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2024-11-08 11:33:10,923 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:10,923 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 11:33:10,924 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 11:33:10,924 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:10,924 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:10,924 INFO  L85        PathProgramCache]: Analyzing trace with hash -514609763, now seen corresponding path program 1 times
[2024-11-08 11:33:10,924 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:10,925 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336942324]
[2024-11-08 11:33:10,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:10,925 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:10,974 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:11,111 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:33:11,113 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:11,113 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336942324]
[2024-11-08 11:33:11,113 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336942324] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:11,113 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:11,114 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:11,114 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295774540]
[2024-11-08 11:33:11,115 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:11,116 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:11,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:11,116 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:11,119 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:11,119 INFO  L87              Difference]: Start difference. First operand 3952 states and 4809 transitions. Second operand  has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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)
[2024-11-08 11:33:12,232 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:12,232 INFO  L93              Difference]: Finished difference Result 9547 states and 11836 transitions.
[2024-11-08 11:33:12,233 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:12,233 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 252
[2024-11-08 11:33:12,234 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:12,246 INFO  L225             Difference]: With dead ends: 9547
[2024-11-08 11:33:12,246 INFO  L226             Difference]: Without dead ends: 5597
[2024-11-08 11:33:12,249 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
[2024-11-08 11:33:12,251 INFO  L432           NwaCegarLoop]: 242 mSDtfsCounter, 325 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:12,251 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 247 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-08 11:33:12,256 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5597 states.
[2024-11-08 11:33:12,300 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5597.
[2024-11-08 11:33:12,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5597 states, 5596 states have (on average 1.2101501072194425) internal successors, (6772), 5596 states have internal predecessors, (6772), 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)
[2024-11-08 11:33:12,313 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 6772 transitions.
[2024-11-08 11:33:12,315 INFO  L78                 Accepts]: Start accepts. Automaton has 5597 states and 6772 transitions. Word has length 252
[2024-11-08 11:33:12,315 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:12,315 INFO  L471      AbstractCegarLoop]: Abstraction has 5597 states and 6772 transitions.
[2024-11-08 11:33:12,315 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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)
[2024-11-08 11:33:12,316 INFO  L276                IsEmpty]: Start isEmpty. Operand 5597 states and 6772 transitions.
[2024-11-08 11:33:12,320 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 263
[2024-11-08 11:33:12,320 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:12,320 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 11:33:12,320 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 11:33:12,320 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:12,321 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:12,321 INFO  L85        PathProgramCache]: Analyzing trace with hash -565668138, now seen corresponding path program 1 times
[2024-11-08 11:33:12,322 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:12,322 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804018383]
[2024-11-08 11:33:12,322 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:12,322 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:12,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:12,722 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:33:12,723 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:12,723 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804018383]
[2024-11-08 11:33:12,723 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804018383] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:12,723 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:12,723 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:12,723 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597365402]
[2024-11-08 11:33:12,723 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:12,724 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:33:12,724 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:12,726 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:33:12,726 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:33:12,727 INFO  L87              Difference]: Start difference. First operand 5597 states and 6772 transitions. Second operand  has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 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)
[2024-11-08 11:33:13,836 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:13,836 INFO  L93              Difference]: Finished difference Result 11521 states and 13883 transitions.
[2024-11-08 11:33:13,836 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:33:13,837 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 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 262
[2024-11-08 11:33:13,837 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:13,852 INFO  L225             Difference]: With dead ends: 11521
[2024-11-08 11:33:13,852 INFO  L226             Difference]: Without dead ends: 5926
[2024-11-08 11:33:13,858 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 11:33:13,859 INFO  L432           NwaCegarLoop]: 267 mSDtfsCounter, 127 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:13,859 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 322 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-08 11:33:13,864 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5926 states.
[2024-11-08 11:33:13,913 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5926.
[2024-11-08 11:33:13,919 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5926 states, 5925 states have (on average 1.199493670886076) internal successors, (7107), 5925 states have internal predecessors, (7107), 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)
[2024-11-08 11:33:13,929 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 7107 transitions.
[2024-11-08 11:33:13,929 INFO  L78                 Accepts]: Start accepts. Automaton has 5926 states and 7107 transitions. Word has length 262
[2024-11-08 11:33:13,929 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:13,932 INFO  L471      AbstractCegarLoop]: Abstraction has 5926 states and 7107 transitions.
[2024-11-08 11:33:13,932 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 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)
[2024-11-08 11:33:13,932 INFO  L276                IsEmpty]: Start isEmpty. Operand 5926 states and 7107 transitions.
[2024-11-08 11:33:13,935 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 350
[2024-11-08 11:33:13,935 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:13,935 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:13,936 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 11:33:13,936 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:13,936 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:13,936 INFO  L85        PathProgramCache]: Analyzing trace with hash 234888516, now seen corresponding path program 1 times
[2024-11-08 11:33:13,936 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:13,936 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548755662]
[2024-11-08 11:33:13,937 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:13,937 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:13,980 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:14,457 INFO  L134       CoverageAnalysis]: Checked inductivity of 115 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:33:14,457 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:14,457 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548755662]
[2024-11-08 11:33:14,457 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548755662] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:14,457 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:14,458 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 11:33:14,458 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060670564]
[2024-11-08 11:33:14,458 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:14,458 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 11:33:14,458 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:14,459 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 11:33:14,459 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-08 11:33:14,460 INFO  L87              Difference]: Start difference. First operand 5926 states and 7107 transitions. Second operand  has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 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)
[2024-11-08 11:33:15,934 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:15,934 INFO  L93              Difference]: Finished difference Result 11380 states and 13724 transitions.
[2024-11-08 11:33:15,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-08 11:33:15,935 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 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 349
[2024-11-08 11:33:15,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:15,947 INFO  L225             Difference]: With dead ends: 11380
[2024-11-08 11:33:15,947 INFO  L226             Difference]: Without dead ends: 5597
[2024-11-08 11:33:15,953 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-08 11:33:15,953 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 314 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:15,954 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 289 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-08 11:33:15,958 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5597 states.
[2024-11-08 11:33:15,997 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5597.
[2024-11-08 11:33:16,002 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5597 states, 5596 states have (on average 1.0816654753395283) internal successors, (6053), 5596 states have internal predecessors, (6053), 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)
[2024-11-08 11:33:16,007 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 6053 transitions.
[2024-11-08 11:33:16,007 INFO  L78                 Accepts]: Start accepts. Automaton has 5597 states and 6053 transitions. Word has length 349
[2024-11-08 11:33:16,008 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:16,008 INFO  L471      AbstractCegarLoop]: Abstraction has 5597 states and 6053 transitions.
[2024-11-08 11:33:16,008 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 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)
[2024-11-08 11:33:16,008 INFO  L276                IsEmpty]: Start isEmpty. Operand 5597 states and 6053 transitions.
[2024-11-08 11:33:16,011 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 357
[2024-11-08 11:33:16,011 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:16,011 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:16,011 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 11:33:16,011 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:16,012 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:16,012 INFO  L85        PathProgramCache]: Analyzing trace with hash -1270868132, now seen corresponding path program 1 times
[2024-11-08 11:33:16,012 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:16,012 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807643912]
[2024-11-08 11:33:16,012 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:16,012 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:16,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:16,343 INFO  L134       CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked.
[2024-11-08 11:33:16,343 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:16,343 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807643912]
[2024-11-08 11:33:16,343 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807643912] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:33:16,343 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321098795]
[2024-11-08 11:33:16,344 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:16,344 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:33:16,344 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:33:16,349 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:33:16,353 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 11:33:16,468 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:16,473 INFO  L255         TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 11:33:16,483 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:33:16,868 INFO  L134       CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-08 11:33:16,868 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 11:33:16,868 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [321098795] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:16,868 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 11:33:16,868 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2024-11-08 11:33:16,869 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148554895]
[2024-11-08 11:33:16,869 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:16,869 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:16,869 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:16,870 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:16,870 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 11:33:16,870 INFO  L87              Difference]: Start difference. First operand 5597 states and 6053 transitions. Second operand  has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 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)
[2024-11-08 11:33:17,528 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:17,528 INFO  L93              Difference]: Finished difference Result 7244 states and 7749 transitions.
[2024-11-08 11:33:17,528 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:17,528 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 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 356
[2024-11-08 11:33:17,529 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:17,548 INFO  L225             Difference]: With dead ends: 7244
[2024-11-08 11:33:17,552 INFO  L226             Difference]: Without dead ends: 7242
[2024-11-08 11:33:17,554 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 11:33:17,555 INFO  L432           NwaCegarLoop]: 78 mSDtfsCounter, 108 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:17,555 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 83 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:33:17,560 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7242 states.
[2024-11-08 11:33:17,606 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7242 to 6255.
[2024-11-08 11:33:17,616 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6255 states, 6254 states have (on average 1.0767508794371603) internal successors, (6734), 6254 states have internal predecessors, (6734), 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)
[2024-11-08 11:33:17,623 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6255 states to 6255 states and 6734 transitions.
[2024-11-08 11:33:17,624 INFO  L78                 Accepts]: Start accepts. Automaton has 6255 states and 6734 transitions. Word has length 356
[2024-11-08 11:33:17,625 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:17,625 INFO  L471      AbstractCegarLoop]: Abstraction has 6255 states and 6734 transitions.
[2024-11-08 11:33:17,625 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 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)
[2024-11-08 11:33:17,625 INFO  L276                IsEmpty]: Start isEmpty. Operand 6255 states and 6734 transitions.
[2024-11-08 11:33:17,638 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 593
[2024-11-08 11:33:17,639 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:17,639 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 11:33:17,654 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 11:33:17,843 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:33:17,844 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:17,845 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:17,845 INFO  L85        PathProgramCache]: Analyzing trace with hash -984449991, now seen corresponding path program 1 times
[2024-11-08 11:33:17,845 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:17,845 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512883420]
[2024-11-08 11:33:17,845 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:17,845 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:17,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:18,291 INFO  L134       CoverageAnalysis]: Checked inductivity of 691 backedges. 581 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked.
[2024-11-08 11:33:18,294 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:18,294 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512883420]
[2024-11-08 11:33:18,294 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512883420] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:18,294 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:18,295 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:18,295 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029446587]
[2024-11-08 11:33:18,295 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:18,295 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:18,295 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:18,296 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:18,296 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:18,296 INFO  L87              Difference]: Start difference. First operand 6255 states and 6734 transitions. Second operand  has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 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)
[2024-11-08 11:33:18,972 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:18,973 INFO  L93              Difference]: Finished difference Result 14482 states and 15690 transitions.
[2024-11-08 11:33:18,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:18,977 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 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 592
[2024-11-08 11:33:18,978 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:19,000 INFO  L225             Difference]: With dead ends: 14482
[2024-11-08 11:33:19,001 INFO  L226             Difference]: Without dead ends: 8558
[2024-11-08 11:33:19,008 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
[2024-11-08 11:33:19,010 INFO  L432           NwaCegarLoop]: 34 mSDtfsCounter, 224 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:19,011 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 38 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:33:19,017 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8558 states.
[2024-11-08 11:33:19,068 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 8558.
[2024-11-08 11:33:19,075 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8558 states, 8557 states have (on average 1.0781816057029332) internal successors, (9226), 8557 states have internal predecessors, (9226), 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)
[2024-11-08 11:33:19,083 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 9226 transitions.
[2024-11-08 11:33:19,083 INFO  L78                 Accepts]: Start accepts. Automaton has 8558 states and 9226 transitions. Word has length 592
[2024-11-08 11:33:19,084 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:19,084 INFO  L471      AbstractCegarLoop]: Abstraction has 8558 states and 9226 transitions.
[2024-11-08 11:33:19,084 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 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)
[2024-11-08 11:33:19,084 INFO  L276                IsEmpty]: Start isEmpty. Operand 8558 states and 9226 transitions.
[2024-11-08 11:33:19,094 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 674
[2024-11-08 11:33:19,094 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:19,095 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:19,095 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 11:33:19,095 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:19,096 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:19,096 INFO  L85        PathProgramCache]: Analyzing trace with hash -961146299, now seen corresponding path program 1 times
[2024-11-08 11:33:19,096 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:19,096 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490785162]
[2024-11-08 11:33:19,096 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:19,097 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:19,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:19,814 INFO  L134       CoverageAnalysis]: Checked inductivity of 708 backedges. 613 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2024-11-08 11:33:19,815 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:19,815 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490785162]
[2024-11-08 11:33:19,815 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490785162] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:19,815 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:19,815 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:19,815 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432010721]
[2024-11-08 11:33:19,815 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:19,816 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:33:19,816 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:19,817 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:33:19,817 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:33:19,817 INFO  L87              Difference]: Start difference. First operand 8558 states and 9226 transitions. Second operand  has 4 states, 4 states have (on average 148.75) internal successors, (595), 3 states have internal predecessors, (595), 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)
[2024-11-08 11:33:21,103 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:21,104 INFO  L93              Difference]: Finished difference Result 20406 states and 22032 transitions.
[2024-11-08 11:33:21,104 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:33:21,104 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 148.75) internal successors, (595), 3 states have internal predecessors, (595), 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 673
[2024-11-08 11:33:21,105 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:21,121 INFO  L225             Difference]: With dead ends: 20406
[2024-11-08 11:33:21,121 INFO  L226             Difference]: Without dead ends: 12179
[2024-11-08 11:33:21,130 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
[2024-11-08 11:33:21,130 INFO  L432           NwaCegarLoop]: 83 mSDtfsCounter, 187 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1698 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:21,131 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 97 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1698 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-08 11:33:21,140 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12179 states.
[2024-11-08 11:33:21,310 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12179 to 12177.
[2024-11-08 11:33:21,321 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12177 states, 12176 states have (on average 1.0748193166885678) internal successors, (13087), 12176 states have internal predecessors, (13087), 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)
[2024-11-08 11:33:21,334 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 13087 transitions.
[2024-11-08 11:33:21,334 INFO  L78                 Accepts]: Start accepts. Automaton has 12177 states and 13087 transitions. Word has length 673
[2024-11-08 11:33:21,336 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:21,336 INFO  L471      AbstractCegarLoop]: Abstraction has 12177 states and 13087 transitions.
[2024-11-08 11:33:21,337 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 148.75) internal successors, (595), 3 states have internal predecessors, (595), 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)
[2024-11-08 11:33:21,337 INFO  L276                IsEmpty]: Start isEmpty. Operand 12177 states and 13087 transitions.
[2024-11-08 11:33:21,343 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 712
[2024-11-08 11:33:21,344 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:21,344 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:21,344 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 11:33:21,345 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:21,345 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:21,345 INFO  L85        PathProgramCache]: Analyzing trace with hash 391480979, now seen corresponding path program 1 times
[2024-11-08 11:33:21,346 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:21,346 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771903400]
[2024-11-08 11:33:21,346 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:21,346 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:21,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:22,114 INFO  L134       CoverageAnalysis]: Checked inductivity of 1071 backedges. 785 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked.
[2024-11-08 11:33:22,115 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:22,115 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771903400]
[2024-11-08 11:33:22,115 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771903400] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:22,115 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:22,115 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:22,116 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810873205]
[2024-11-08 11:33:22,116 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:22,116 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:33:22,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:22,117 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:33:22,117 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:33:22,117 INFO  L87              Difference]: Start difference. First operand 12177 states and 13087 transitions. Second operand  has 4 states, 4 states have (on average 130.75) internal successors, (523), 3 states have internal predecessors, (523), 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)
[2024-11-08 11:33:23,183 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:23,184 INFO  L93              Difference]: Finished difference Result 24023 states and 25841 transitions.
[2024-11-08 11:33:23,184 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:33:23,184 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 130.75) internal successors, (523), 3 states have internal predecessors, (523), 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 711
[2024-11-08 11:33:23,185 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:23,200 INFO  L225             Difference]: With dead ends: 24023
[2024-11-08 11:33:23,200 INFO  L226             Difference]: Without dead ends: 12177
[2024-11-08 11:33:23,209 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
[2024-11-08 11:33:23,210 INFO  L432           NwaCegarLoop]: 111 mSDtfsCounter, 268 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:23,210 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 123 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-08 11:33:23,217 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12177 states.
[2024-11-08 11:33:23,294 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12177 to 12177.
[2024-11-08 11:33:23,304 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12177 states, 12176 states have (on average 1.0744086727989488) internal successors, (13082), 12176 states have internal predecessors, (13082), 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)
[2024-11-08 11:33:23,315 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 13082 transitions.
[2024-11-08 11:33:23,315 INFO  L78                 Accepts]: Start accepts. Automaton has 12177 states and 13082 transitions. Word has length 711
[2024-11-08 11:33:23,316 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:23,316 INFO  L471      AbstractCegarLoop]: Abstraction has 12177 states and 13082 transitions.
[2024-11-08 11:33:23,316 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 130.75) internal successors, (523), 3 states have internal predecessors, (523), 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)
[2024-11-08 11:33:23,316 INFO  L276                IsEmpty]: Start isEmpty. Operand 12177 states and 13082 transitions.
[2024-11-08 11:33:23,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 773
[2024-11-08 11:33:23,323 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:23,323 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:33:23,324 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-08 11:33:23,324 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:23,324 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:23,324 INFO  L85        PathProgramCache]: Analyzing trace with hash -209229755, now seen corresponding path program 1 times
[2024-11-08 11:33:23,324 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:23,324 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972121529]
[2024-11-08 11:33:23,325 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:23,325 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:23,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:23,733 INFO  L134       CoverageAnalysis]: Checked inductivity of 1132 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked.
[2024-11-08 11:33:23,734 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:23,734 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972121529]
[2024-11-08 11:33:23,734 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972121529] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:23,734 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:23,734 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:23,734 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221694291]
[2024-11-08 11:33:23,734 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:23,735 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:23,735 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:23,735 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:23,735 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:23,736 INFO  L87              Difference]: Start difference. First operand 12177 states and 13082 transitions. Second operand  has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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)
[2024-11-08 11:33:24,592 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:24,592 INFO  L93              Difference]: Finished difference Result 26655 states and 28795 transitions.
[2024-11-08 11:33:24,593 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:24,593 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 772
[2024-11-08 11:33:24,594 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:24,610 INFO  L225             Difference]: With dead ends: 26655
[2024-11-08 11:33:24,610 INFO  L226             Difference]: Without dead ends: 15138
[2024-11-08 11:33:24,619 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
[2024-11-08 11:33:24,620 INFO  L432           NwaCegarLoop]: 431 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:24,620 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 437 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 11:33:24,627 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15138 states.
[2024-11-08 11:33:24,807 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 14151.
[2024-11-08 11:33:24,819 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14151 states, 14150 states have (on average 1.065088339222615) internal successors, (15071), 14150 states have internal predecessors, (15071), 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)
[2024-11-08 11:33:24,839 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14151 states to 14151 states and 15071 transitions.
[2024-11-08 11:33:24,839 INFO  L78                 Accepts]: Start accepts. Automaton has 14151 states and 15071 transitions. Word has length 772
[2024-11-08 11:33:24,840 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:24,840 INFO  L471      AbstractCegarLoop]: Abstraction has 14151 states and 15071 transitions.
[2024-11-08 11:33:24,841 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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)
[2024-11-08 11:33:24,841 INFO  L276                IsEmpty]: Start isEmpty. Operand 14151 states and 15071 transitions.
[2024-11-08 11:33:24,853 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 774
[2024-11-08 11:33:24,853 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:24,854 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:33:24,854 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-08 11:33:24,854 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:24,854 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:24,854 INFO  L85        PathProgramCache]: Analyzing trace with hash -90211282, now seen corresponding path program 1 times
[2024-11-08 11:33:24,855 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:24,855 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273880800]
[2024-11-08 11:33:24,855 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:24,855 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:24,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:25,630 INFO  L134       CoverageAnalysis]: Checked inductivity of 1136 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked.
[2024-11-08 11:33:25,630 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:25,630 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273880800]
[2024-11-08 11:33:25,630 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273880800] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:25,630 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:25,630 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:25,631 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622237277]
[2024-11-08 11:33:25,631 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:25,631 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:25,631 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:25,632 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:25,632 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:25,632 INFO  L87              Difference]: Start difference. First operand 14151 states and 15071 transitions. Second operand  has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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)
[2024-11-08 11:33:26,323 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:26,323 INFO  L93              Difference]: Finished difference Result 27642 states and 29478 transitions.
[2024-11-08 11:33:26,324 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:26,324 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 773
[2024-11-08 11:33:26,325 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:26,338 INFO  L225             Difference]: With dead ends: 27642
[2024-11-08 11:33:26,338 INFO  L226             Difference]: Without dead ends: 14151
[2024-11-08 11:33:26,349 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:26,350 INFO  L432           NwaCegarLoop]: 371 mSDtfsCounter, 350 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:26,350 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 377 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:33:26,357 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14151 states.
[2024-11-08 11:33:26,441 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14151 to 13822.
[2024-11-08 11:33:26,450 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13822 states, 13821 states have (on average 1.0580999927646335) internal successors, (14624), 13821 states have internal predecessors, (14624), 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)
[2024-11-08 11:33:26,462 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13822 states to 13822 states and 14624 transitions.
[2024-11-08 11:33:26,463 INFO  L78                 Accepts]: Start accepts. Automaton has 13822 states and 14624 transitions. Word has length 773
[2024-11-08 11:33:26,463 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:26,463 INFO  L471      AbstractCegarLoop]: Abstraction has 13822 states and 14624 transitions.
[2024-11-08 11:33:26,463 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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)
[2024-11-08 11:33:26,463 INFO  L276                IsEmpty]: Start isEmpty. Operand 13822 states and 14624 transitions.
[2024-11-08 11:33:26,474 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 944
[2024-11-08 11:33:26,474 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:26,475 INFO  L215           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:26,475 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-08 11:33:26,475 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:26,475 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:26,475 INFO  L85        PathProgramCache]: Analyzing trace with hash 718494088, now seen corresponding path program 1 times
[2024-11-08 11:33:26,475 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:26,476 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887740099]
[2024-11-08 11:33:26,476 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:26,476 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:26,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:26,939 INFO  L134       CoverageAnalysis]: Checked inductivity of 2043 backedges. 966 proven. 0 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked.
[2024-11-08 11:33:26,940 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:26,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887740099]
[2024-11-08 11:33:26,940 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887740099] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:26,940 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:26,940 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:26,940 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883032117]
[2024-11-08 11:33:26,940 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:26,941 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:26,941 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:26,941 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:26,941 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:26,942 INFO  L87              Difference]: Start difference. First operand 13822 states and 14624 transitions. Second operand  has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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)
[2024-11-08 11:33:27,859 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:27,859 INFO  L93              Difference]: Finished difference Result 32248 states and 34192 transitions.
[2024-11-08 11:33:27,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:27,859 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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 943
[2024-11-08 11:33:27,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:27,875 INFO  L225             Difference]: With dead ends: 32248
[2024-11-08 11:33:27,875 INFO  L226             Difference]: Without dead ends: 17770
[2024-11-08 11:33:27,884 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
[2024-11-08 11:33:27,884 INFO  L432           NwaCegarLoop]: 424 mSDtfsCounter, 271 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:27,884 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 429 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 11:33:27,893 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17770 states.
[2024-11-08 11:33:27,982 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17770 to 17112.
[2024-11-08 11:33:27,993 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17112 states, 17111 states have (on average 1.045643153526971) internal successors, (17892), 17111 states have internal predecessors, (17892), 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)
[2024-11-08 11:33:28,007 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17112 states to 17112 states and 17892 transitions.
[2024-11-08 11:33:28,007 INFO  L78                 Accepts]: Start accepts. Automaton has 17112 states and 17892 transitions. Word has length 943
[2024-11-08 11:33:28,008 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:28,008 INFO  L471      AbstractCegarLoop]: Abstraction has 17112 states and 17892 transitions.
[2024-11-08 11:33:28,008 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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)
[2024-11-08 11:33:28,008 INFO  L276                IsEmpty]: Start isEmpty. Operand 17112 states and 17892 transitions.
[2024-11-08 11:33:28,023 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1213
[2024-11-08 11:33:28,024 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:28,024 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:28,024 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-08 11:33:28,025 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:28,025 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:28,025 INFO  L85        PathProgramCache]: Analyzing trace with hash 1338563639, now seen corresponding path program 1 times
[2024-11-08 11:33:28,025 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:28,025 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352259138]
[2024-11-08 11:33:28,025 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:28,026 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:28,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:28,580 INFO  L134       CoverageAnalysis]: Checked inductivity of 2983 backedges. 766 proven. 0 refuted. 0 times theorem prover too weak. 2217 trivial. 0 not checked.
[2024-11-08 11:33:28,581 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:28,581 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352259138]
[2024-11-08 11:33:28,581 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352259138] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:28,581 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:28,581 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:28,581 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218440945]
[2024-11-08 11:33:28,581 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:28,582 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:28,582 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:28,583 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:28,583 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:28,583 INFO  L87              Difference]: Start difference. First operand 17112 states and 17892 transitions. Second operand  has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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)
[2024-11-08 11:33:29,292 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:29,292 INFO  L93              Difference]: Finished difference Result 33893 states and 35450 transitions.
[2024-11-08 11:33:29,293 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:29,293 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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 1212
[2024-11-08 11:33:29,294 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:29,309 INFO  L225             Difference]: With dead ends: 33893
[2024-11-08 11:33:29,309 INFO  L226             Difference]: Without dead ends: 17441
[2024-11-08 11:33:29,320 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
[2024-11-08 11:33:29,321 INFO  L432           NwaCegarLoop]: 420 mSDtfsCounter, 229 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:29,321 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 425 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:33:29,332 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17441 states.
[2024-11-08 11:33:29,499 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17441 to 16454.
[2024-11-08 11:33:29,508 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16454 states, 16453 states have (on average 1.0373792013614538) internal successors, (17068), 16453 states have internal predecessors, (17068), 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)
[2024-11-08 11:33:29,530 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 17068 transitions.
[2024-11-08 11:33:29,530 INFO  L78                 Accepts]: Start accepts. Automaton has 16454 states and 17068 transitions. Word has length 1212
[2024-11-08 11:33:29,531 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:29,531 INFO  L471      AbstractCegarLoop]: Abstraction has 16454 states and 17068 transitions.
[2024-11-08 11:33:29,532 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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)
[2024-11-08 11:33:29,532 INFO  L276                IsEmpty]: Start isEmpty. Operand 16454 states and 17068 transitions.
[2024-11-08 11:33:29,559 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1229
[2024-11-08 11:33:29,559 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:29,560 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:29,560 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-08 11:33:29,560 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:29,561 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:29,561 INFO  L85        PathProgramCache]: Analyzing trace with hash -67579336, now seen corresponding path program 1 times
[2024-11-08 11:33:29,561 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:29,561 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563997856]
[2024-11-08 11:33:29,561 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:29,562 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:29,763 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:30,364 INFO  L134       CoverageAnalysis]: Checked inductivity of 3214 backedges. 802 proven. 0 refuted. 0 times theorem prover too weak. 2412 trivial. 0 not checked.
[2024-11-08 11:33:30,365 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:30,365 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563997856]
[2024-11-08 11:33:30,365 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563997856] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:30,365 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:30,365 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:30,365 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640483016]
[2024-11-08 11:33:30,365 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:30,366 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:30,366 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:30,367 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:30,367 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:30,367 INFO  L87              Difference]: Start difference. First operand 16454 states and 17068 transitions. Second operand  has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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)
[2024-11-08 11:33:31,088 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:31,088 INFO  L93              Difference]: Finished difference Result 34880 states and 36265 transitions.
[2024-11-08 11:33:31,088 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:31,088 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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 1228
[2024-11-08 11:33:31,089 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:31,103 INFO  L225             Difference]: With dead ends: 34880
[2024-11-08 11:33:31,103 INFO  L226             Difference]: Without dead ends: 16783
[2024-11-08 11:33:31,114 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
[2024-11-08 11:33:31,115 INFO  L432           NwaCegarLoop]: 408 mSDtfsCounter, 238 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:31,115 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 414 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:33:31,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16783 states.
[2024-11-08 11:33:31,207 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16783 to 14809.
[2024-11-08 11:33:31,215 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14809 states, 14808 states have (on average 1.0324824419232848) internal successors, (15289), 14808 states have internal predecessors, (15289), 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)
[2024-11-08 11:33:31,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14809 states to 14809 states and 15289 transitions.
[2024-11-08 11:33:31,228 INFO  L78                 Accepts]: Start accepts. Automaton has 14809 states and 15289 transitions. Word has length 1228
[2024-11-08 11:33:31,229 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:31,229 INFO  L471      AbstractCegarLoop]: Abstraction has 14809 states and 15289 transitions.
[2024-11-08 11:33:31,229 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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)
[2024-11-08 11:33:31,229 INFO  L276                IsEmpty]: Start isEmpty. Operand 14809 states and 15289 transitions.
[2024-11-08 11:33:31,246 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1403
[2024-11-08 11:33:31,246 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:31,246 INFO  L215           NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:31,246 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-08 11:33:31,247 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:31,247 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:31,247 INFO  L85        PathProgramCache]: Analyzing trace with hash -1998679778, now seen corresponding path program 1 times
[2024-11-08 11:33:31,247 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:31,247 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589574623]
[2024-11-08 11:33:31,248 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:31,248 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:31,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:31,834 INFO  L134       CoverageAnalysis]: Checked inductivity of 4472 backedges. 3009 proven. 0 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked.
[2024-11-08 11:33:31,834 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:31,834 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589574623]
[2024-11-08 11:33:31,834 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589574623] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:31,834 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:31,834 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:31,834 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000954476]
[2024-11-08 11:33:31,835 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:31,835 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:31,836 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:31,836 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:31,836 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:31,836 INFO  L87              Difference]: Start difference. First operand 14809 states and 15289 transitions. Second operand  has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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)
[2024-11-08 11:33:32,543 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:32,544 INFO  L93              Difference]: Finished difference Result 29287 states and 30244 transitions.
[2024-11-08 11:33:32,544 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:32,544 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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 1402
[2024-11-08 11:33:32,544 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:32,556 INFO  L225             Difference]: With dead ends: 29287
[2024-11-08 11:33:32,556 INFO  L226             Difference]: Without dead ends: 14809
[2024-11-08 11:33:32,565 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
[2024-11-08 11:33:32,566 INFO  L432           NwaCegarLoop]: 415 mSDtfsCounter, 193 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:32,566 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 421 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:33:32,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14809 states.
[2024-11-08 11:33:32,646 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14809 to 14480.
[2024-11-08 11:33:32,654 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14480 states, 14479 states have (on average 1.026106775329788) internal successors, (14857), 14479 states have internal predecessors, (14857), 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)
[2024-11-08 11:33:32,666 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14857 transitions.
[2024-11-08 11:33:32,666 INFO  L78                 Accepts]: Start accepts. Automaton has 14480 states and 14857 transitions. Word has length 1402
[2024-11-08 11:33:32,667 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:32,667 INFO  L471      AbstractCegarLoop]: Abstraction has 14480 states and 14857 transitions.
[2024-11-08 11:33:32,667 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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)
[2024-11-08 11:33:32,667 INFO  L276                IsEmpty]: Start isEmpty. Operand 14480 states and 14857 transitions.
[2024-11-08 11:33:32,686 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1565
[2024-11-08 11:33:32,686 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:32,687 INFO  L215           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 11:33:32,687 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-08 11:33:32,687 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:32,687 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:32,688 INFO  L85        PathProgramCache]: Analyzing trace with hash -1174903987, now seen corresponding path program 1 times
[2024-11-08 11:33:32,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:32,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225422780]
[2024-11-08 11:33:32,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:32,688 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:32,873 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:34,097 INFO  L134       CoverageAnalysis]: Checked inductivity of 4043 backedges. 2829 proven. 0 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked.
[2024-11-08 11:33:34,097 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:34,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225422780]
[2024-11-08 11:33:34,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225422780] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:34,097 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:34,097 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 11:33:34,097 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621280764]
[2024-11-08 11:33:34,098 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:34,098 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:33:34,098 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:34,099 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:33:34,099 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:33:34,099 INFO  L87              Difference]: Start difference. First operand 14480 states and 14857 transitions. Second operand  has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 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)
[2024-11-08 11:33:34,955 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:34,955 INFO  L93              Difference]: Finished difference Result 28312 states and 29062 transitions.
[2024-11-08 11:33:34,956 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 11:33:34,956 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 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 1564
[2024-11-08 11:33:34,957 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:34,966 INFO  L225             Difference]: With dead ends: 28312
[2024-11-08 11:33:34,967 INFO  L226             Difference]: Without dead ends: 14492
[2024-11-08 11:33:34,973 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 11:33:34,974 INFO  L432           NwaCegarLoop]: 423 mSDtfsCounter, 218 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:34,974 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 436 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 11:33:34,980 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14492 states.
[2024-11-08 11:33:35,047 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14492 to 14480.
[2024-11-08 11:33:35,053 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14480 states, 14479 states have (on average 1.025968644243387) internal successors, (14855), 14479 states have internal predecessors, (14855), 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)
[2024-11-08 11:33:35,066 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14855 transitions.
[2024-11-08 11:33:35,067 INFO  L78                 Accepts]: Start accepts. Automaton has 14480 states and 14855 transitions. Word has length 1564
[2024-11-08 11:33:35,067 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:35,067 INFO  L471      AbstractCegarLoop]: Abstraction has 14480 states and 14855 transitions.
[2024-11-08 11:33:35,068 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 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)
[2024-11-08 11:33:35,068 INFO  L276                IsEmpty]: Start isEmpty. Operand 14480 states and 14855 transitions.
[2024-11-08 11:33:35,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1613
[2024-11-08 11:33:35,084 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:35,085 INFO  L215           NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:35,085 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-08 11:33:35,085 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:35,086 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:35,086 INFO  L85        PathProgramCache]: Analyzing trace with hash -1344833952, now seen corresponding path program 1 times
[2024-11-08 11:33:35,086 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:35,086 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237618272]
[2024-11-08 11:33:35,086 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:35,086 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:35,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:36,588 INFO  L134       CoverageAnalysis]: Checked inductivity of 5066 backedges. 2865 proven. 0 refuted. 0 times theorem prover too weak. 2201 trivial. 0 not checked.
[2024-11-08 11:33:36,588 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:36,589 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237618272]
[2024-11-08 11:33:36,589 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237618272] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:36,589 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:36,589 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:33:36,589 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37230673]
[2024-11-08 11:33:36,589 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:36,590 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:36,590 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:36,591 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:36,591 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:33:36,591 INFO  L87              Difference]: Start difference. First operand 14480 states and 14855 transitions. Second operand  has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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)
[2024-11-08 11:33:37,287 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:37,287 INFO  L93              Difference]: Finished difference Result 28958 states and 29715 transitions.
[2024-11-08 11:33:37,287 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:37,288 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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 1612
[2024-11-08 11:33:37,288 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:37,301 INFO  L225             Difference]: With dead ends: 28958
[2024-11-08 11:33:37,301 INFO  L226             Difference]: Without dead ends: 15138
[2024-11-08 11:33:37,310 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
[2024-11-08 11:33:37,310 INFO  L432           NwaCegarLoop]: 425 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:37,311 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 431 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:33:37,318 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15138 states.
[2024-11-08 11:33:37,398 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 15138.
[2024-11-08 11:33:37,406 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15138 states, 15137 states have (on average 1.0251701129682236) internal successors, (15518), 15137 states have internal predecessors, (15518), 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)
[2024-11-08 11:33:37,418 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 15518 transitions.
[2024-11-08 11:33:37,419 INFO  L78                 Accepts]: Start accepts. Automaton has 15138 states and 15518 transitions. Word has length 1612
[2024-11-08 11:33:37,420 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:37,420 INFO  L471      AbstractCegarLoop]: Abstraction has 15138 states and 15518 transitions.
[2024-11-08 11:33:37,420 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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)
[2024-11-08 11:33:37,420 INFO  L276                IsEmpty]: Start isEmpty. Operand 15138 states and 15518 transitions.
[2024-11-08 11:33:37,437 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1636
[2024-11-08 11:33:37,437 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:37,438 INFO  L215           NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:37,438 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-08 11:33:37,438 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:37,438 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:37,438 INFO  L85        PathProgramCache]: Analyzing trace with hash -1877566063, now seen corresponding path program 1 times
[2024-11-08 11:33:37,439 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:37,439 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636268271]
[2024-11-08 11:33:37,439 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:37,439 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:37,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:39,297 INFO  L134       CoverageAnalysis]: Checked inductivity of 4910 backedges. 3684 proven. 41 refuted. 0 times theorem prover too weak. 1185 trivial. 0 not checked.
[2024-11-08 11:33:39,297 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:39,298 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636268271]
[2024-11-08 11:33:39,298 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636268271] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:33:39,298 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850600716]
[2024-11-08 11:33:39,298 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:39,298 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:33:39,298 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:33:39,302 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:33:39,305 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 11:33:39,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:39,654 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 11:33:39,670 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:33:40,154 INFO  L134       CoverageAnalysis]: Checked inductivity of 4910 backedges. 2479 proven. 0 refuted. 0 times theorem prover too weak. 2431 trivial. 0 not checked.
[2024-11-08 11:33:40,155 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 11:33:40,155 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [850600716] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:40,155 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 11:33:40,155 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6
[2024-11-08 11:33:40,155 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806326734]
[2024-11-08 11:33:40,155 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:40,157 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:40,157 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:40,158 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:40,158 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 11:33:40,158 INFO  L87              Difference]: Start difference. First operand 15138 states and 15518 transitions. Second operand  has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 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)
[2024-11-08 11:33:40,815 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:40,815 INFO  L93              Difference]: Finished difference Result 29616 states and 30372 transitions.
[2024-11-08 11:33:40,816 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:40,816 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 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 1635
[2024-11-08 11:33:40,817 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:40,827 INFO  L225             Difference]: With dead ends: 29616
[2024-11-08 11:33:40,827 INFO  L226             Difference]: Without dead ends: 15138
[2024-11-08 11:33:40,833 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1639 GetRequests, 1635 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 11:33:40,834 INFO  L432           NwaCegarLoop]: 419 mSDtfsCounter, 120 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:40,834 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 425 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 11:33:40,840 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15138 states.
[2024-11-08 11:33:40,911 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 15138.
[2024-11-08 11:33:40,920 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15138 states, 15137 states have (on average 1.0249058598137015) internal successors, (15514), 15137 states have internal predecessors, (15514), 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)
[2024-11-08 11:33:40,935 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 15514 transitions.
[2024-11-08 11:33:40,936 INFO  L78                 Accepts]: Start accepts. Automaton has 15138 states and 15514 transitions. Word has length 1635
[2024-11-08 11:33:40,937 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:40,937 INFO  L471      AbstractCegarLoop]: Abstraction has 15138 states and 15514 transitions.
[2024-11-08 11:33:40,937 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 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)
[2024-11-08 11:33:40,937 INFO  L276                IsEmpty]: Start isEmpty. Operand 15138 states and 15514 transitions.
[2024-11-08 11:33:40,954 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1638
[2024-11-08 11:33:40,954 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:40,954 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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]
[2024-11-08 11:33:40,968 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-08 11:33:41,155 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19
[2024-11-08 11:33:41,156 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:41,156 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:41,156 INFO  L85        PathProgramCache]: Analyzing trace with hash 1250742707, now seen corresponding path program 1 times
[2024-11-08 11:33:41,156 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:41,156 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509013242]
[2024-11-08 11:33:41,156 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:41,156 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:41,323 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:42,315 INFO  L134       CoverageAnalysis]: Checked inductivity of 4613 backedges. 3059 proven. 0 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked.
[2024-11-08 11:33:42,316 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:42,316 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509013242]
[2024-11-08 11:33:42,316 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509013242] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:42,316 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:33:42,316 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 11:33:42,316 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430559164]
[2024-11-08 11:33:42,316 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:42,317 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:33:42,317 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:42,318 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:33:42,318 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:33:42,318 INFO  L87              Difference]: Start difference. First operand 15138 states and 15514 transitions. Second operand  has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 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)
[2024-11-08 11:33:43,241 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:43,242 INFO  L93              Difference]: Finished difference Result 29616 states and 30364 transitions.
[2024-11-08 11:33:43,242 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:33:43,242 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 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 1637
[2024-11-08 11:33:43,243 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:43,255 INFO  L225             Difference]: With dead ends: 29616
[2024-11-08 11:33:43,256 INFO  L226             Difference]: Without dead ends: 15138
[2024-11-08 11:33:43,265 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 11:33:43,265 INFO  L432           NwaCegarLoop]: 425 mSDtfsCounter, 120 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:43,266 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 555 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 11:33:43,273 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15138 states.
[2024-11-08 11:33:43,408 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 15138.
[2024-11-08 11:33:43,418 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15138 states, 15137 states have (on average 1.0242452269273965) internal successors, (15504), 15137 states have internal predecessors, (15504), 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)
[2024-11-08 11:33:43,430 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 15504 transitions.
[2024-11-08 11:33:43,431 INFO  L78                 Accepts]: Start accepts. Automaton has 15138 states and 15504 transitions. Word has length 1637
[2024-11-08 11:33:43,432 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:43,432 INFO  L471      AbstractCegarLoop]: Abstraction has 15138 states and 15504 transitions.
[2024-11-08 11:33:43,432 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 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)
[2024-11-08 11:33:43,432 INFO  L276                IsEmpty]: Start isEmpty. Operand 15138 states and 15504 transitions.
[2024-11-08 11:33:43,451 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1799
[2024-11-08 11:33:43,451 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:43,452 INFO  L215           NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:33:43,452 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-08 11:33:43,452 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:43,453 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:43,453 INFO  L85        PathProgramCache]: Analyzing trace with hash -1110746482, now seen corresponding path program 1 times
[2024-11-08 11:33:43,453 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:43,453 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828625725]
[2024-11-08 11:33:43,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:43,453 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:43,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:46,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 5586 backedges. 3976 proven. 531 refuted. 0 times theorem prover too weak. 1079 trivial. 0 not checked.
[2024-11-08 11:33:46,592 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:46,592 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828625725]
[2024-11-08 11:33:46,592 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828625725] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:33:46,592 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345081475]
[2024-11-08 11:33:46,592 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:46,593 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:33:46,593 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:33:46,595 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:33:46,596 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 11:33:46,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:46,958 INFO  L255         TraceCheckSpWp]: Trace formula consists of 2058 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 11:33:46,970 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:33:47,220 INFO  L134       CoverageAnalysis]: Checked inductivity of 5586 backedges. 2747 proven. 0 refuted. 0 times theorem prover too weak. 2839 trivial. 0 not checked.
[2024-11-08 11:33:47,221 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 11:33:47,221 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345081475] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:47,221 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 11:33:47,221 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8
[2024-11-08 11:33:47,222 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239695978]
[2024-11-08 11:33:47,222 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:47,223 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:47,223 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:47,223 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:47,223 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-08 11:33:47,224 INFO  L87              Difference]: Start difference. First operand 15138 states and 15504 transitions. Second operand  has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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)
[2024-11-08 11:33:47,947 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:47,948 INFO  L93              Difference]: Finished difference Result 29616 states and 30344 transitions.
[2024-11-08 11:33:47,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:47,948 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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 1798
[2024-11-08 11:33:47,949 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:47,961 INFO  L225             Difference]: With dead ends: 29616
[2024-11-08 11:33:47,961 INFO  L226             Difference]: Without dead ends: 15138
[2024-11-08 11:33:47,971 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1807 GetRequests, 1801 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-08 11:33:47,971 INFO  L432           NwaCegarLoop]: 404 mSDtfsCounter, 123 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:47,971 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 410 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 11:33:47,979 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15138 states.
[2024-11-08 11:33:48,058 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 14480.
[2024-11-08 11:33:48,068 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14480 states, 14479 states have (on average 1.0194764831825402) internal successors, (14761), 14479 states have internal predecessors, (14761), 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)
[2024-11-08 11:33:48,081 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14761 transitions.
[2024-11-08 11:33:48,081 INFO  L78                 Accepts]: Start accepts. Automaton has 14480 states and 14761 transitions. Word has length 1798
[2024-11-08 11:33:48,082 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:48,082 INFO  L471      AbstractCegarLoop]: Abstraction has 14480 states and 14761 transitions.
[2024-11-08 11:33:48,082 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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)
[2024-11-08 11:33:48,083 INFO  L276                IsEmpty]: Start isEmpty. Operand 14480 states and 14761 transitions.
[2024-11-08 11:33:48,107 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2277
[2024-11-08 11:33:48,108 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:48,109 INFO  L215           NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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]
[2024-11-08 11:33:48,123 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 11:33:48,309 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:33:48,310 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:48,310 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:48,310 INFO  L85        PathProgramCache]: Analyzing trace with hash 586796141, now seen corresponding path program 1 times
[2024-11-08 11:33:48,310 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:48,310 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447691749]
[2024-11-08 11:33:48,310 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:48,311 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:48,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:51,988 INFO  L134       CoverageAnalysis]: Checked inductivity of 9508 backedges. 4519 proven. 505 refuted. 0 times theorem prover too weak. 4484 trivial. 0 not checked.
[2024-11-08 11:33:51,989 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:51,989 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447691749]
[2024-11-08 11:33:51,989 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447691749] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:33:51,989 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435133559]
[2024-11-08 11:33:51,989 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:51,989 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:33:51,989 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:33:51,991 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:33:51,991 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 11:33:52,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:52,442 INFO  L255         TraceCheckSpWp]: Trace formula consists of 2598 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 11:33:52,454 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:33:52,603 INFO  L134       CoverageAnalysis]: Checked inductivity of 9508 backedges. 5179 proven. 0 refuted. 0 times theorem prover too weak. 4329 trivial. 0 not checked.
[2024-11-08 11:33:52,603 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 11:33:52,604 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435133559] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:33:52,604 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 11:33:52,604 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8
[2024-11-08 11:33:52,604 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439497777]
[2024-11-08 11:33:52,604 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:33:52,605 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:33:52,605 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:33:52,606 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:33:52,606 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-08 11:33:52,609 INFO  L87              Difference]: Start difference. First operand 14480 states and 14761 transitions. Second operand  has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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)
[2024-11-08 11:33:53,353 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:33:53,353 INFO  L93              Difference]: Finished difference Result 30603 states and 31201 transitions.
[2024-11-08 11:33:53,353 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:33:53,353 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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 2276
[2024-11-08 11:33:53,354 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:33:53,368 INFO  L225             Difference]: With dead ends: 30603
[2024-11-08 11:33:53,368 INFO  L226             Difference]: Without dead ends: 16783
[2024-11-08 11:33:53,377 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2284 GetRequests, 2278 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-08 11:33:53,378 INFO  L432           NwaCegarLoop]: 421 mSDtfsCounter, 221 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:33:53,378 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 427 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 11:33:53,386 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16783 states.
[2024-11-08 11:33:53,462 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16783 to 15796.
[2024-11-08 11:33:53,470 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15796 states, 15795 states have (on average 1.0187401076289966) internal successors, (16091), 15795 states have internal predecessors, (16091), 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)
[2024-11-08 11:33:53,483 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16091 transitions.
[2024-11-08 11:33:53,483 INFO  L78                 Accepts]: Start accepts. Automaton has 15796 states and 16091 transitions. Word has length 2276
[2024-11-08 11:33:53,484 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:33:53,484 INFO  L471      AbstractCegarLoop]: Abstraction has 15796 states and 16091 transitions.
[2024-11-08 11:33:53,484 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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)
[2024-11-08 11:33:53,484 INFO  L276                IsEmpty]: Start isEmpty. Operand 15796 states and 16091 transitions.
[2024-11-08 11:33:53,510 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2308
[2024-11-08 11:33:53,511 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:33:53,511 INFO  L215           NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 11:33:53,526 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 11:33:53,712 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:33:53,712 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:33:53,712 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:33:53,713 INFO  L85        PathProgramCache]: Analyzing trace with hash 923885894, now seen corresponding path program 1 times
[2024-11-08 11:33:53,713 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:33:53,713 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500864072]
[2024-11-08 11:33:53,713 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:53,713 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:33:53,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:57,433 INFO  L134       CoverageAnalysis]: Checked inductivity of 9955 backedges. 4644 proven. 523 refuted. 0 times theorem prover too weak. 4788 trivial. 0 not checked.
[2024-11-08 11:33:57,434 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:33:57,434 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500864072]
[2024-11-08 11:33:57,435 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500864072] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:33:57,435 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841128237]
[2024-11-08 11:33:57,435 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:33:57,436 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:33:57,436 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:33:57,438 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:33:57,442 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 11:33:57,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:33:57,928 INFO  L255         TraceCheckSpWp]: Trace formula consists of 2632 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-08 11:33:57,947 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:34:00,786 INFO  L134       CoverageAnalysis]: Checked inductivity of 9955 backedges. 5805 proven. 510 refuted. 0 times theorem prover too weak. 3640 trivial. 0 not checked.
[2024-11-08 11:34:00,786 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 11:34:07,440 INFO  L134       CoverageAnalysis]: Checked inductivity of 9955 backedges. 5805 proven. 510 refuted. 0 times theorem prover too weak. 3640 trivial. 0 not checked.
[2024-11-08 11:34:07,441 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841128237] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 11:34:07,441 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 11:34:07,441 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10
[2024-11-08 11:34:07,442 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657852121]
[2024-11-08 11:34:07,442 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 11:34:07,444 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 11:34:07,444 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:34:07,445 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 11:34:07,445 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-11-08 11:34:07,445 INFO  L87              Difference]: Start difference. First operand 15796 states and 16091 transitions. Second operand  has 10 states, 10 states have (on average 150.2) internal successors, (1502), 10 states have internal predecessors, (1502), 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)
[2024-11-08 11:34:11,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:34:11,016 INFO  L93              Difference]: Finished difference Result 31928 states and 32528 transitions.
[2024-11-08 11:34:11,016 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-08 11:34:11,017 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 150.2) internal successors, (1502), 10 states have internal predecessors, (1502), 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 2307
[2024-11-08 11:34:11,017 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:34:11,031 INFO  L225             Difference]: With dead ends: 31928
[2024-11-08 11:34:11,032 INFO  L226             Difference]: Without dead ends: 16792
[2024-11-08 11:34:11,041 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4629 GetRequests, 4614 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240
[2024-11-08 11:34:11,041 INFO  L432           NwaCegarLoop]: 43 mSDtfsCounter, 855 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 8300 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 8342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 8300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2024-11-08 11:34:11,042 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 153 Invalid, 8342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 8300 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2024-11-08 11:34:11,051 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16792 states.
[2024-11-08 11:34:11,147 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16792 to 15796.
[2024-11-08 11:34:11,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15796 states, 15795 states have (on average 1.01772712883824) internal successors, (16075), 15795 states have internal predecessors, (16075), 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)
[2024-11-08 11:34:11,170 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16075 transitions.
[2024-11-08 11:34:11,170 INFO  L78                 Accepts]: Start accepts. Automaton has 15796 states and 16075 transitions. Word has length 2307
[2024-11-08 11:34:11,171 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:34:11,171 INFO  L471      AbstractCegarLoop]: Abstraction has 15796 states and 16075 transitions.
[2024-11-08 11:34:11,171 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 150.2) internal successors, (1502), 10 states have internal predecessors, (1502), 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)
[2024-11-08 11:34:11,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 15796 states and 16075 transitions.
[2024-11-08 11:34:11,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2461
[2024-11-08 11:34:11,200 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:34:11,200 INFO  L215           NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:34:11,216 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-08 11:34:11,401 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2024-11-08 11:34:11,402 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:34:11,406 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:34:11,407 INFO  L85        PathProgramCache]: Analyzing trace with hash -413668101, now seen corresponding path program 1 times
[2024-11-08 11:34:11,407 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:34:11,407 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888450303]
[2024-11-08 11:34:11,407 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:34:11,407 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:34:11,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:34:14,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 10947 backedges. 7905 proven. 78 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked.
[2024-11-08 11:34:14,104 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:34:14,104 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888450303]
[2024-11-08 11:34:14,105 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888450303] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:34:14,105 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115347991]
[2024-11-08 11:34:14,105 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:34:14,105 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:34:14,105 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:34:14,110 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:34:14,117 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 11:34:14,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:34:14,642 INFO  L255         TraceCheckSpWp]: Trace formula consists of 2817 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 11:34:14,658 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:34:26,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 10947 backedges. 7059 proven. 67 refuted. 0 times theorem prover too weak. 3821 trivial. 0 not checked.
[2024-11-08 11:34:26,997 INFO  L311         TraceCheckSpWp]: Computing backward predicates...