./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label23.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 803cd42f
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem16_label23.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 8d85db598b116be798c82f2dd8d1706b14592e07af324ce511eec8d5748ab1b3
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-21 22:26:39,843 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-21 22:26:39,922 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-21 22:26:39,929 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-21 22:26:39,932 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-21 22:26:39,977 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-21 22:26:39,978 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-21 22:26:39,979 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-21 22:26:39,979 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-21 22:26:39,980 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-21 22:26:39,980 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-21 22:26:39,981 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-21 22:26:39,982 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-21 22:26:39,982 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-21 22:26:39,984 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-21 22:26:39,985 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-21 22:26:39,985 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-21 22:26:39,985 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-21 22:26:39,985 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-21 22:26:39,985 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-21 22:26:39,986 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-21 22:26:39,986 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-21 22:26:39,987 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-21 22:26:39,990 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-21 22:26:39,990 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-21 22:26:39,991 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-21 22:26:39,991 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-21 22:26:39,991 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-21 22:26:39,991 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-21 22:26:39,991 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-21 22:26:39,992 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-21 22:26:39,992 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-21 22:26:39,992 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-21 22:26:39,992 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-21 22:26:39,992 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-21 22:26:39,993 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-21 22:26:39,993 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-21 22:26:39,993 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-21 22:26:39,993 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-21 22:26:39,993 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-21 22:26:39,994 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-21 22:26:39,996 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-21 22:26:39,996 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 -> 8d85db598b116be798c82f2dd8d1706b14592e07af324ce511eec8d5748ab1b3
[2024-11-21 22:26:40,281 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-21 22:26:40,304 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-21 22:26:40,307 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-21 22:26:40,309 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-21 22:26:40,309 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-21 22:26:40,310 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label23.c
[2024-11-21 22:26:41,828 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-21 22:26:42,165 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-21 22:26:42,166 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label23.c
[2024-11-21 22:26:42,185 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b16829f/b1d9abbc816b40b798e519ca7be3f638/FLAG2484dd945
[2024-11-21 22:26:42,200 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b16829f/b1d9abbc816b40b798e519ca7be3f638
[2024-11-21 22:26:42,204 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-21 22:26:42,206 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-21 22:26:42,208 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-21 22:26:42,208 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-21 22:26:42,214 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-21 22:26:42,215 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:26:42" (1/1) ...
[2024-11-21 22:26:42,216 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524ce280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:42, skipping insertion in model container
[2024-11-21 22:26:42,218 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:26:42" (1/1) ...
[2024-11-21 22:26:42,284 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-21 22:26:42,519 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_label23.c[3431,3444]
[2024-11-21 22:26:42,922 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-21 22:26:42,932 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-21 22:26:42,953 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_label23.c[3431,3444]
[2024-11-21 22:26:43,116 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-21 22:26:43,137 INFO  L204         MainTranslator]: Completed translation
[2024-11-21 22:26:43,137 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43 WrapperNode
[2024-11-21 22:26:43,138 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-21 22:26:43,139 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-21 22:26:43,139 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-21 22:26:43,139 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-21 22:26:43,146 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,194 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,365 INFO  L138                Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770
[2024-11-21 22:26:43,366 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-21 22:26:43,367 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-21 22:26:43,367 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-21 22:26:43,367 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-21 22:26:43,378 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,379 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,404 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,476 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].
[2024-11-21 22:26:43,476 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,477 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,526 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,547 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,566 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,575 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,592 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-21 22:26:43,594 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-21 22:26:43,594 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-21 22:26:43,594 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-21 22:26:43,595 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (1/1) ...
[2024-11-21 22:26:43,600 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-21 22:26:43,612 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:26:43,630 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)
[2024-11-21 22:26:43,637 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
[2024-11-21 22:26:43,685 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-21 22:26:43,685 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-21 22:26:43,686 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-21 22:26:43,687 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-21 22:26:43,746 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-21 22:26:43,748 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-21 22:26:45,756 INFO  L?                        ?]: Removed 276 outVars from TransFormulas that were not future-live.
[2024-11-21 22:26:45,756 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-21 22:26:45,784 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-21 22:26:45,784 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-21 22:26:45,785 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:45 BoogieIcfgContainer
[2024-11-21 22:26:45,785 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-21 22:26:45,789 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-21 22:26:45,789 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-21 22:26:45,793 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-21 22:26:45,793 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:26:42" (1/3) ...
[2024-11-21 22:26:45,794 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320cb296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:26:45, skipping insertion in model container
[2024-11-21 22:26:45,794 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:43" (2/3) ...
[2024-11-21 22:26:45,795 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320cb296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:26:45, skipping insertion in model container
[2024-11-21 22:26:45,795 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:45" (3/3) ...
[2024-11-21 22:26:45,796 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem16_label23.c
[2024-11-21 22:26:45,816 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-21 22:26:45,817 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-21 22:26:45,895 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-21 22:26:45,902 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;@62148792, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-21 22:26:45,902 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-21 22:26:45,909 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)
[2024-11-21 22:26:45,916 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-21 22:26:45,917 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:26:45,918 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:26:45,919 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:26:45,924 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:26:45,925 INFO  L85        PathProgramCache]: Analyzing trace with hash -1843609039, now seen corresponding path program 1 times
[2024-11-21 22:26:45,933 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:26:45,934 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406960901]
[2024-11-21 22:26:45,934 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:26:45,934 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:26:46,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:26:46,281 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:26:46,281 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:26:46,282 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406960901]
[2024-11-21 22:26:46,283 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406960901] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:26:46,283 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:26:46,283 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:26:46,285 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258683024]
[2024-11-21 22:26:46,286 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:26:46,290 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:26:46,291 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:26:46,313 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:26:46,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:26:46,317 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 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:47,868 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:26:47,868 INFO  L93              Difference]: Finished difference Result 1137 states and 2118 transitions.
[2024-11-21 22:26:47,870 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:26:47,872 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31
[2024-11-21 22:26:47,872 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:26:47,894 INFO  L225             Difference]: With dead ends: 1137
[2024-11-21 22:26:47,895 INFO  L226             Difference]: Without dead ends: 662
[2024-11-21 22:26:47,901 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
[2024-11-21 22:26:47,908 INFO  L432           NwaCegarLoop]: 52 mSDtfsCounter, 355 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-21 22:26:47,910 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 60 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-21 22:26:47,928 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 662 states.
[2024-11-21 22:26:47,986 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662.
[2024-11-21 22:26:47,988 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 662 states, 661 states have (on average 1.7639939485627836) internal successors, (1166), 661 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:47,991 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1166 transitions.
[2024-11-21 22:26:47,993 INFO  L78                 Accepts]: Start accepts. Automaton has 662 states and 1166 transitions. Word has length 31
[2024-11-21 22:26:47,993 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:26:47,993 INFO  L471      AbstractCegarLoop]: Abstraction has 662 states and 1166 transitions.
[2024-11-21 22:26:47,994 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:47,994 INFO  L276                IsEmpty]: Start isEmpty. Operand 662 states and 1166 transitions.
[2024-11-21 22:26:47,996 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 97
[2024-11-21 22:26:47,997 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:26:47,997 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:26:47,997 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-21 22:26:47,998 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:26:47,998 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:26:47,999 INFO  L85        PathProgramCache]: Analyzing trace with hash 357086092, now seen corresponding path program 1 times
[2024-11-21 22:26:47,999 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:26:47,999 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539036799]
[2024-11-21 22:26:47,999 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:26:48,000 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:26:48,051 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:26:48,226 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:26:48,228 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:26:48,228 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539036799]
[2024-11-21 22:26:48,228 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539036799] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:26:48,229 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:26:48,229 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:26:48,229 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129931615]
[2024-11-21 22:26:48,230 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:26:48,234 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:26:48,234 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:26:48,235 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:26:48,235 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:26:48,235 INFO  L87              Difference]: Start difference. First operand 662 states and 1166 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)
[2024-11-21 22:26:49,589 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:26:49,589 INFO  L93              Difference]: Finished difference Result 1980 states and 3493 transitions.
[2024-11-21 22:26:49,590 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:26:49,590 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
[2024-11-21 22:26:49,590 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:26:49,595 INFO  L225             Difference]: With dead ends: 1980
[2024-11-21 22:26:49,595 INFO  L226             Difference]: Without dead ends: 1320
[2024-11-21 22:26:49,596 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
[2024-11-21 22:26:49,598 INFO  L432           NwaCegarLoop]: 73 mSDtfsCounter, 344 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-21 22:26:49,598 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 77 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-21 22:26:49,600 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1320 states.
[2024-11-21 22:26:49,637 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320.
[2024-11-21 22:26:49,639 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1320 states, 1319 states have (on average 1.6656557998483699) internal successors, (2197), 1319 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:49,644 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2197 transitions.
[2024-11-21 22:26:49,645 INFO  L78                 Accepts]: Start accepts. Automaton has 1320 states and 2197 transitions. Word has length 96
[2024-11-21 22:26:49,645 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:26:49,645 INFO  L471      AbstractCegarLoop]: Abstraction has 1320 states and 2197 transitions.
[2024-11-21 22:26:49,646 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)
[2024-11-21 22:26:49,646 INFO  L276                IsEmpty]: Start isEmpty. Operand 1320 states and 2197 transitions.
[2024-11-21 22:26:49,648 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2024-11-21 22:26:49,648 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:26:49,648 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:26:49,649 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-21 22:26:49,649 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:26:49,649 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:26:49,650 INFO  L85        PathProgramCache]: Analyzing trace with hash -1175667850, now seen corresponding path program 1 times
[2024-11-21 22:26:49,650 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:26:49,650 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053957819]
[2024-11-21 22:26:49,650 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:26:49,650 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:26:49,692 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:26:49,891 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:26:49,891 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:26:49,891 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053957819]
[2024-11-21 22:26:49,891 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053957819] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:26:49,892 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:26:49,892 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:26:49,892 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286544921]
[2024-11-21 22:26:49,892 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:26:49,893 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:26:49,893 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:26:49,893 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:26:49,894 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:26:49,894 INFO  L87              Difference]: Start difference. First operand 1320 states and 2197 transitions. Second operand  has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:51,411 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:26:51,412 INFO  L93              Difference]: Finished difference Result 3625 states and 6017 transitions.
[2024-11-21 22:26:51,412 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:26:51,413 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99
[2024-11-21 22:26:51,414 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:26:51,423 INFO  L225             Difference]: With dead ends: 3625
[2024-11-21 22:26:51,424 INFO  L226             Difference]: Without dead ends: 2307
[2024-11-21 22:26:51,427 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
[2024-11-21 22:26:51,430 INFO  L432           NwaCegarLoop]: 116 mSDtfsCounter, 282 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-21 22:26:51,430 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 120 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-21 22:26:51,435 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2307 states.
[2024-11-21 22:26:51,468 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2307.
[2024-11-21 22:26:51,471 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2307 states, 2306 states have (on average 1.5923677363399826) internal successors, (3672), 2306 states have internal predecessors, (3672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:51,479 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3672 transitions.
[2024-11-21 22:26:51,480 INFO  L78                 Accepts]: Start accepts. Automaton has 2307 states and 3672 transitions. Word has length 99
[2024-11-21 22:26:51,480 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:26:51,480 INFO  L471      AbstractCegarLoop]: Abstraction has 2307 states and 3672 transitions.
[2024-11-21 22:26:51,481 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:51,481 INFO  L276                IsEmpty]: Start isEmpty. Operand 2307 states and 3672 transitions.
[2024-11-21 22:26:51,485 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2024-11-21 22:26:51,485 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:26:51,485 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:26:51,485 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-21 22:26:51,486 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:26:51,486 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:26:51,486 INFO  L85        PathProgramCache]: Analyzing trace with hash 1706439456, now seen corresponding path program 1 times
[2024-11-21 22:26:51,486 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:26:51,487 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685271243]
[2024-11-21 22:26:51,487 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:26:51,487 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:26:51,515 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:26:51,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:26:51,744 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:26:51,744 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685271243]
[2024-11-21 22:26:51,745 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685271243] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:26:51,745 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:26:51,745 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:26:51,745 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571576395]
[2024-11-21 22:26:51,745 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:26:51,746 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-21 22:26:51,746 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:26:51,747 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-21 22:26:51,747 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-21 22:26:51,747 INFO  L87              Difference]: Start difference. First operand 2307 states and 3672 transitions. Second operand  has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:53,846 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:26:53,846 INFO  L93              Difference]: Finished difference Result 6257 states and 9781 transitions.
[2024-11-21 22:26:53,847 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-21 22:26:53,847 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 104
[2024-11-21 22:26:53,847 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:26:53,860 INFO  L225             Difference]: With dead ends: 6257
[2024-11-21 22:26:53,860 INFO  L226             Difference]: Without dead ends: 3952
[2024-11-21 22:26:53,863 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
[2024-11-21 22:26:53,864 INFO  L432           NwaCegarLoop]: 178 mSDtfsCounter, 886 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-11-21 22:26:53,864 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 191 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-11-21 22:26:53,868 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3952 states.
[2024-11-21 22:26:53,920 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952.
[2024-11-21 22:26:53,925 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3952 states, 3951 states have (on average 1.4312832194381169) internal successors, (5655), 3951 states have internal predecessors, (5655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:53,933 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 5655 transitions.
[2024-11-21 22:26:53,933 INFO  L78                 Accepts]: Start accepts. Automaton has 3952 states and 5655 transitions. Word has length 104
[2024-11-21 22:26:53,934 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:26:53,934 INFO  L471      AbstractCegarLoop]: Abstraction has 3952 states and 5655 transitions.
[2024-11-21 22:26:53,934 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:53,934 INFO  L276                IsEmpty]: Start isEmpty. Operand 3952 states and 5655 transitions.
[2024-11-21 22:26:53,935 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-21 22:26:53,936 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:26:53,936 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:26:53,936 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-21 22:26:53,936 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:26:53,937 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:26:53,937 INFO  L85        PathProgramCache]: Analyzing trace with hash 478482531, now seen corresponding path program 1 times
[2024-11-21 22:26:53,937 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:26:53,937 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000287358]
[2024-11-21 22:26:53,938 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:26:53,938 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:26:53,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:26:54,068 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-21 22:26:54,069 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:26:54,069 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000287358]
[2024-11-21 22:26:54,069 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000287358] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:26:54,069 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:26:54,069 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:26:54,069 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302483934]
[2024-11-21 22:26:54,069 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:26:54,070 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:26:54,070 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:26:54,070 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:26:54,070 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:26:54,071 INFO  L87              Difference]: Start difference. First operand 3952 states and 5655 transitions. Second operand  has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:55,375 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:26:55,376 INFO  L93              Difference]: Finished difference Result 10534 states and 15398 transitions.
[2024-11-21 22:26:55,376 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:26:55,376 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 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 118
[2024-11-21 22:26:55,377 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:26:55,400 INFO  L225             Difference]: With dead ends: 10534
[2024-11-21 22:26:55,401 INFO  L226             Difference]: Without dead ends: 6913
[2024-11-21 22:26:55,407 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
[2024-11-21 22:26:55,408 INFO  L432           NwaCegarLoop]: 218 mSDtfsCounter, 265 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-21 22:26:55,408 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 223 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-21 22:26:55,415 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6913 states.
[2024-11-21 22:26:55,530 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6913.
[2024-11-21 22:26:55,541 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6913 states, 6912 states have (on average 1.3081597222222223) internal successors, (9042), 6912 states have internal predecessors, (9042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:55,557 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6913 states to 6913 states and 9042 transitions.
[2024-11-21 22:26:55,557 INFO  L78                 Accepts]: Start accepts. Automaton has 6913 states and 9042 transitions. Word has length 118
[2024-11-21 22:26:55,558 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:26:55,558 INFO  L471      AbstractCegarLoop]: Abstraction has 6913 states and 9042 transitions.
[2024-11-21 22:26:55,558 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:55,559 INFO  L276                IsEmpty]: Start isEmpty. Operand 6913 states and 9042 transitions.
[2024-11-21 22:26:55,562 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 266
[2024-11-21 22:26:55,563 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:26:55,563 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:26:55,563 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-21 22:26:55,563 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:26:55,565 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:26:55,565 INFO  L85        PathProgramCache]: Analyzing trace with hash 888355746, now seen corresponding path program 1 times
[2024-11-21 22:26:55,565 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:26:55,565 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864858982]
[2024-11-21 22:26:55,566 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:26:55,566 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:26:55,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:26:55,781 INFO  L134       CoverageAnalysis]: Checked inductivity of 299 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked.
[2024-11-21 22:26:55,782 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:26:55,782 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864858982]
[2024-11-21 22:26:55,782 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864858982] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:26:55,782 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:26:55,782 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:26:55,783 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578995554]
[2024-11-21 22:26:55,783 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:26:55,784 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:26:55,784 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:26:55,785 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:26:55,785 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:26:55,785 INFO  L87              Difference]: Start difference. First operand 6913 states and 9042 transitions. Second operand  has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:56,941 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:26:56,941 INFO  L93              Difference]: Finished difference Result 16456 states and 21659 transitions.
[2024-11-21 22:26:56,942 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:26:56,942 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 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 265
[2024-11-21 22:26:56,942 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:26:56,976 INFO  L225             Difference]: With dead ends: 16456
[2024-11-21 22:26:56,976 INFO  L226             Difference]: Without dead ends: 9874
[2024-11-21 22:26:56,985 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
[2024-11-21 22:26:56,987 INFO  L432           NwaCegarLoop]: 151 mSDtfsCounter, 359 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-21 22:26:56,990 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 155 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-21 22:26:57,002 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9874 states.
[2024-11-21 22:26:57,108 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9874 to 8229.
[2024-11-21 22:26:57,120 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8229 states, 8228 states have (on average 1.2035731648031114) internal successors, (9903), 8228 states have internal predecessors, (9903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:57,138 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8229 states to 8229 states and 9903 transitions.
[2024-11-21 22:26:57,138 INFO  L78                 Accepts]: Start accepts. Automaton has 8229 states and 9903 transitions. Word has length 265
[2024-11-21 22:26:57,139 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:26:57,139 INFO  L471      AbstractCegarLoop]: Abstraction has 8229 states and 9903 transitions.
[2024-11-21 22:26:57,139 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:57,140 INFO  L276                IsEmpty]: Start isEmpty. Operand 8229 states and 9903 transitions.
[2024-11-21 22:26:57,144 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 354
[2024-11-21 22:26:57,144 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:26:57,144 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-21 22:26:57,145 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-21 22:26:57,145 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:26:57,145 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:26:57,145 INFO  L85        PathProgramCache]: Analyzing trace with hash 202313507, now seen corresponding path program 1 times
[2024-11-21 22:26:57,146 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:26:57,146 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017750035]
[2024-11-21 22:26:57,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:26:57,146 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:26:57,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:26:57,793 INFO  L134       CoverageAnalysis]: Checked inductivity of 143 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:26:57,793 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:26:57,793 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017750035]
[2024-11-21 22:26:57,794 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017750035] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:26:57,794 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:26:57,794 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-21 22:26:57,795 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238849062]
[2024-11-21 22:26:57,795 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:26:57,795 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-21 22:26:57,795 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:26:57,796 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-21 22:26:57,797 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-21 22:26:57,797 INFO  L87              Difference]: Start difference. First operand 8229 states and 9903 transitions. Second operand  has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:59,627 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:26:59,627 INFO  L93              Difference]: Finished difference Result 15717 states and 19011 transitions.
[2024-11-21 22:26:59,629 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-21 22:26:59,629 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 353
[2024-11-21 22:26:59,630 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:26:59,643 INFO  L225             Difference]: With dead ends: 15717
[2024-11-21 22:26:59,644 INFO  L226             Difference]: Without dead ends: 7900
[2024-11-21 22:26:59,650 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-21 22:26:59,652 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 308 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-21 22:26:59,653 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 291 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-21 22:26:59,661 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7900 states.
[2024-11-21 22:26:59,736 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 7900.
[2024-11-21 22:26:59,746 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7900 states, 7899 states have (on average 1.0845676667932649) internal successors, (8567), 7899 states have internal predecessors, (8567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:59,757 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 8567 transitions.
[2024-11-21 22:26:59,758 INFO  L78                 Accepts]: Start accepts. Automaton has 7900 states and 8567 transitions. Word has length 353
[2024-11-21 22:26:59,758 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:26:59,758 INFO  L471      AbstractCegarLoop]: Abstraction has 7900 states and 8567 transitions.
[2024-11-21 22:26:59,758 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:26:59,759 INFO  L276                IsEmpty]: Start isEmpty. Operand 7900 states and 8567 transitions.
[2024-11-21 22:26:59,763 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 371
[2024-11-21 22:26:59,763 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:26:59,763 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-21 22:26:59,763 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-21 22:26:59,763 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:26:59,764 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:26:59,764 INFO  L85        PathProgramCache]: Analyzing trace with hash -1300314316, now seen corresponding path program 1 times
[2024-11-21 22:26:59,764 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:26:59,764 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252390917]
[2024-11-21 22:26:59,764 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:26:59,765 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:26:59,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:00,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 152 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2024-11-21 22:27:00,024 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:00,024 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252390917]
[2024-11-21 22:27:00,024 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252390917] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:00,024 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:27:00,024 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:27:00,025 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830311833]
[2024-11-21 22:27:00,025 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:00,026 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:27:00,026 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:00,027 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:27:00,027 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:27:00,027 INFO  L87              Difference]: Start difference. First operand 7900 states and 8567 transitions. Second operand  has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:01,017 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:01,017 INFO  L93              Difference]: Finished difference Result 18101 states and 19824 transitions.
[2024-11-21 22:27:01,018 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:01,018 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 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 370
[2024-11-21 22:27:01,019 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:01,037 INFO  L225             Difference]: With dead ends: 18101
[2024-11-21 22:27:01,037 INFO  L226             Difference]: Without dead ends: 10861
[2024-11-21 22:27:01,046 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
[2024-11-21 22:27:01,047 INFO  L432           NwaCegarLoop]: 399 mSDtfsCounter, 304 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:01,047 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 405 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-21 22:27:01,059 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10861 states.
[2024-11-21 22:27:01,165 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10861.
[2024-11-21 22:27:01,184 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10861 states, 10860 states have (on average 1.0780847145488028) internal successors, (11708), 10860 states have internal predecessors, (11708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:01,198 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 11708 transitions.
[2024-11-21 22:27:01,199 INFO  L78                 Accepts]: Start accepts. Automaton has 10861 states and 11708 transitions. Word has length 370
[2024-11-21 22:27:01,200 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:01,200 INFO  L471      AbstractCegarLoop]: Abstraction has 10861 states and 11708 transitions.
[2024-11-21 22:27:01,200 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:01,200 INFO  L276                IsEmpty]: Start isEmpty. Operand 10861 states and 11708 transitions.
[2024-11-21 22:27:01,211 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 566
[2024-11-21 22:27:01,211 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:01,213 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:27:01,213 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-21 22:27:01,213 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:01,213 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:01,214 INFO  L85        PathProgramCache]: Analyzing trace with hash -412346964, now seen corresponding path program 1 times
[2024-11-21 22:27:01,214 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:01,214 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320477355]
[2024-11-21 22:27:01,214 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:01,214 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:01,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:01,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked.
[2024-11-21 22:27:01,615 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:01,615 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320477355]
[2024-11-21 22:27:01,615 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320477355] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:01,615 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:27:01,615 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:27:01,616 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966452165]
[2024-11-21 22:27:01,616 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:01,616 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:27:01,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:01,617 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:27:01,618 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:27:01,618 INFO  L87              Difference]: Start difference. First operand 10861 states and 11708 transitions. Second operand  has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:02,380 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:02,381 INFO  L93              Difference]: Finished difference Result 21062 states and 22744 transitions.
[2024-11-21 22:27:02,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:02,382 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 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 565
[2024-11-21 22:27:02,383 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:02,404 INFO  L225             Difference]: With dead ends: 21062
[2024-11-21 22:27:02,404 INFO  L226             Difference]: Without dead ends: 10861
[2024-11-21 22:27:02,416 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
[2024-11-21 22:27:02,418 INFO  L432           NwaCegarLoop]: 56 mSDtfsCounter, 190 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:02,419 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 60 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-21 22:27:02,431 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10861 states.
[2024-11-21 22:27:02,525 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10861.
[2024-11-21 22:27:02,538 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10861 states, 10860 states have (on average 1.0667587476979743) internal successors, (11585), 10860 states have internal predecessors, (11585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:02,550 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 11585 transitions.
[2024-11-21 22:27:02,551 INFO  L78                 Accepts]: Start accepts. Automaton has 10861 states and 11585 transitions. Word has length 565
[2024-11-21 22:27:02,552 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:02,552 INFO  L471      AbstractCegarLoop]: Abstraction has 10861 states and 11585 transitions.
[2024-11-21 22:27:02,553 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:02,553 INFO  L276                IsEmpty]: Start isEmpty. Operand 10861 states and 11585 transitions.
[2024-11-21 22:27:02,566 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 652
[2024-11-21 22:27:02,567 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:02,567 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:27:02,567 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-21 22:27:02,568 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:02,571 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:02,571 INFO  L85        PathProgramCache]: Analyzing trace with hash 1358447523, now seen corresponding path program 1 times
[2024-11-21 22:27:02,572 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:02,572 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837842793]
[2024-11-21 22:27:02,572 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:02,572 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:02,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:03,390 INFO  L134       CoverageAnalysis]: Checked inductivity of 599 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked.
[2024-11-21 22:27:03,390 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:03,390 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837842793]
[2024-11-21 22:27:03,391 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837842793] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:03,391 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:27:03,391 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:27:03,391 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313002779]
[2024-11-21 22:27:03,391 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:03,392 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-21 22:27:03,392 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:03,393 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-21 22:27:03,395 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-21 22:27:03,395 INFO  L87              Difference]: Start difference. First operand 10861 states and 11585 transitions. Second operand  has 4 states, 4 states have (on average 155.75) internal successors, (623), 3 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:04,453 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:04,453 INFO  L93              Difference]: Finished difference Result 21062 states and 22500 transitions.
[2024-11-21 22:27:04,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-21 22:27:04,454 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 155.75) internal successors, (623), 3 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 651
[2024-11-21 22:27:04,454 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:04,471 INFO  L225             Difference]: With dead ends: 21062
[2024-11-21 22:27:04,471 INFO  L226             Difference]: Without dead ends: 10861
[2024-11-21 22:27:04,481 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
[2024-11-21 22:27:04,482 INFO  L432           NwaCegarLoop]: 77 mSDtfsCounter, 270 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:04,483 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 86 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-21 22:27:04,493 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10861 states.
[2024-11-21 22:27:04,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10861.
[2024-11-21 22:27:04,671 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10861 states, 10860 states have (on average 1.0629834254143646) internal successors, (11544), 10860 states have internal predecessors, (11544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:04,689 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 11544 transitions.
[2024-11-21 22:27:04,690 INFO  L78                 Accepts]: Start accepts. Automaton has 10861 states and 11544 transitions. Word has length 651
[2024-11-21 22:27:04,691 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:04,691 INFO  L471      AbstractCegarLoop]: Abstraction has 10861 states and 11544 transitions.
[2024-11-21 22:27:04,692 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 155.75) internal successors, (623), 3 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:04,692 INFO  L276                IsEmpty]: Start isEmpty. Operand 10861 states and 11544 transitions.
[2024-11-21 22:27:04,715 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 702
[2024-11-21 22:27:04,715 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:04,715 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:27:04,716 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-21 22:27:04,716 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:04,717 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:04,717 INFO  L85        PathProgramCache]: Analyzing trace with hash 661033144, now seen corresponding path program 1 times
[2024-11-21 22:27:04,717 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:04,717 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973425655]
[2024-11-21 22:27:04,718 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:04,718 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:04,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:05,471 INFO  L134       CoverageAnalysis]: Checked inductivity of 1082 backedges. 863 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked.
[2024-11-21 22:27:05,472 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:05,472 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973425655]
[2024-11-21 22:27:05,472 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973425655] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:05,472 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:27:05,472 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:27:05,472 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353243102]
[2024-11-21 22:27:05,472 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:05,474 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:27:05,474 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:05,475 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:27:05,475 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:27:05,475 INFO  L87              Difference]: Start difference. First operand 10861 states and 11544 transitions. Second operand  has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:06,218 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:06,218 INFO  L93              Difference]: Finished difference Result 24352 states and 25917 transitions.
[2024-11-21 22:27:06,219 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:06,219 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 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 701
[2024-11-21 22:27:06,220 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:06,238 INFO  L225             Difference]: With dead ends: 24352
[2024-11-21 22:27:06,238 INFO  L226             Difference]: Without dead ends: 14151
[2024-11-21 22:27:06,249 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
[2024-11-21 22:27:06,250 INFO  L432           NwaCegarLoop]: 34 mSDtfsCounter, 224 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:06,250 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 38 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-21 22:27:06,259 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14151 states.
[2024-11-21 22:27:06,367 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14151 to 13493.
[2024-11-21 22:27:06,380 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13493 states, 13492 states have (on average 1.0578120367625259) internal successors, (14272), 13492 states have internal predecessors, (14272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:06,395 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 14272 transitions.
[2024-11-21 22:27:06,395 INFO  L78                 Accepts]: Start accepts. Automaton has 13493 states and 14272 transitions. Word has length 701
[2024-11-21 22:27:06,396 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:06,396 INFO  L471      AbstractCegarLoop]: Abstraction has 13493 states and 14272 transitions.
[2024-11-21 22:27:06,397 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:06,397 INFO  L276                IsEmpty]: Start isEmpty. Operand 13493 states and 14272 transitions.
[2024-11-21 22:27:06,406 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 756
[2024-11-21 22:27:06,406 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:06,406 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:27:06,407 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-21 22:27:06,407 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:06,407 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:06,408 INFO  L85        PathProgramCache]: Analyzing trace with hash 1461292433, now seen corresponding path program 1 times
[2024-11-21 22:27:06,408 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:06,408 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726506271]
[2024-11-21 22:27:06,408 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:06,408 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:06,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:07,451 INFO  L134       CoverageAnalysis]: Checked inductivity of 1217 backedges. 873 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked.
[2024-11-21 22:27:07,451 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:07,451 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726506271]
[2024-11-21 22:27:07,451 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726506271] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:07,451 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:27:07,452 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:27:07,452 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8978563]
[2024-11-21 22:27:07,452 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:07,454 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-21 22:27:07,455 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:07,455 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-21 22:27:07,455 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-21 22:27:07,456 INFO  L87              Difference]: Start difference. First operand 13493 states and 14272 transitions. Second operand  has 4 states, 4 states have (on average 134.5) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:08,441 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:08,441 INFO  L93              Difference]: Finished difference Result 26326 states and 27875 transitions.
[2024-11-21 22:27:08,442 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:08,442 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 134.5) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 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 755
[2024-11-21 22:27:08,443 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:08,460 INFO  L225             Difference]: With dead ends: 26326
[2024-11-21 22:27:08,461 INFO  L226             Difference]: Without dead ends: 13493
[2024-11-21 22:27:08,470 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
[2024-11-21 22:27:08,471 INFO  L432           NwaCegarLoop]: 108 mSDtfsCounter, 173 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:08,471 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 118 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-21 22:27:08,480 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13493 states.
[2024-11-21 22:27:08,581 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13493 to 13493.
[2024-11-21 22:27:08,595 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13493 states, 13492 states have (on average 1.0575896827749778) internal successors, (14269), 13492 states have internal predecessors, (14269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:08,612 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 14269 transitions.
[2024-11-21 22:27:08,613 INFO  L78                 Accepts]: Start accepts. Automaton has 13493 states and 14269 transitions. Word has length 755
[2024-11-21 22:27:08,613 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:08,614 INFO  L471      AbstractCegarLoop]: Abstraction has 13493 states and 14269 transitions.
[2024-11-21 22:27:08,614 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 134.5) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:08,614 INFO  L276                IsEmpty]: Start isEmpty. Operand 13493 states and 14269 transitions.
[2024-11-21 22:27:08,627 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 817
[2024-11-21 22:27:08,627 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:08,628 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:27:08,628 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-21 22:27:08,628 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:08,629 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:08,629 INFO  L85        PathProgramCache]: Analyzing trace with hash -1459862461, now seen corresponding path program 1 times
[2024-11-21 22:27:08,629 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:08,629 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896657109]
[2024-11-21 22:27:08,630 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:08,630 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:08,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:09,411 INFO  L134       CoverageAnalysis]: Checked inductivity of 1278 backedges. 614 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked.
[2024-11-21 22:27:09,411 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:09,412 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896657109]
[2024-11-21 22:27:09,412 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896657109] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:09,412 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:27:09,412 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:27:09,412 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334462048]
[2024-11-21 22:27:09,412 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:09,413 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:27:09,413 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:09,414 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:27:09,414 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:27:09,415 INFO  L87              Difference]: Start difference. First operand 13493 states and 14269 transitions. Second operand  has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:10,176 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:10,177 INFO  L93              Difference]: Finished difference Result 28958 states and 30688 transitions.
[2024-11-21 22:27:10,177 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:10,177 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 816
[2024-11-21 22:27:10,178 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:10,199 INFO  L225             Difference]: With dead ends: 28958
[2024-11-21 22:27:10,200 INFO  L226             Difference]: Without dead ends: 16125
[2024-11-21 22:27:10,212 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
[2024-11-21 22:27:10,213 INFO  L432           NwaCegarLoop]: 437 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:10,213 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 443 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-21 22:27:10,225 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16125 states.
[2024-11-21 22:27:10,426 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 15796.
[2024-11-21 22:27:10,439 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15796 states, 15795 states have (on average 1.0549540993985438) internal successors, (16663), 15795 states have internal predecessors, (16663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:10,456 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16663 transitions.
[2024-11-21 22:27:10,457 INFO  L78                 Accepts]: Start accepts. Automaton has 15796 states and 16663 transitions. Word has length 816
[2024-11-21 22:27:10,458 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:10,458 INFO  L471      AbstractCegarLoop]: Abstraction has 15796 states and 16663 transitions.
[2024-11-21 22:27:10,458 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:10,458 INFO  L276                IsEmpty]: Start isEmpty. Operand 15796 states and 16663 transitions.
[2024-11-21 22:27:10,471 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 847
[2024-11-21 22:27:10,471 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:10,472 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:27:10,472 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-21 22:27:10,472 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:10,473 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:10,473 INFO  L85        PathProgramCache]: Analyzing trace with hash 579852588, now seen corresponding path program 1 times
[2024-11-21 22:27:10,473 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:10,474 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65936907]
[2024-11-21 22:27:10,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:10,474 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:10,584 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:11,927 INFO  L134       CoverageAnalysis]: Checked inductivity of 1315 backedges. 908 proven. 258 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked.
[2024-11-21 22:27:11,927 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:11,927 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65936907]
[2024-11-21 22:27:11,928 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65936907] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:27:11,928 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804483705]
[2024-11-21 22:27:11,928 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:11,928 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:27:11,928 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:27:11,932 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)
[2024-11-21 22:27:11,933 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-21 22:27:12,233 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:12,237 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-21 22:27:12,258 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:27:12,351 INFO  L134       CoverageAnalysis]: Checked inductivity of 1315 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked.
[2024-11-21 22:27:12,352 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 22:27:12,352 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804483705] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:12,352 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-21 22:27:12,352 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8
[2024-11-21 22:27:12,352 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646757986]
[2024-11-21 22:27:12,353 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:12,353 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:27:12,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:12,354 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:27:12,354 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-21 22:27:12,354 INFO  L87              Difference]: Start difference. First operand 15796 states and 16663 transitions. Second operand  has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:13,119 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:13,119 INFO  L93              Difference]: Finished difference Result 30932 states and 32660 transitions.
[2024-11-21 22:27:13,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:13,120 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 846
[2024-11-21 22:27:13,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:13,136 INFO  L225             Difference]: With dead ends: 30932
[2024-11-21 22:27:13,137 INFO  L226             Difference]: Without dead ends: 15796
[2024-11-21 22:27:13,149 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-21 22:27:13,149 INFO  L432           NwaCegarLoop]: 371 mSDtfsCounter, 336 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 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, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:13,150 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 377 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-21 22:27:13,159 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15796 states.
[2024-11-21 22:27:13,276 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 15796.
[2024-11-21 22:27:13,288 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15796 states, 15795 states have (on average 1.0465337132003798) internal successors, (16530), 15795 states have internal predecessors, (16530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:13,306 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16530 transitions.
[2024-11-21 22:27:13,307 INFO  L78                 Accepts]: Start accepts. Automaton has 15796 states and 16530 transitions. Word has length 846
[2024-11-21 22:27:13,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:13,308 INFO  L471      AbstractCegarLoop]: Abstraction has 15796 states and 16530 transitions.
[2024-11-21 22:27:13,308 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:13,308 INFO  L276                IsEmpty]: Start isEmpty. Operand 15796 states and 16530 transitions.
[2024-11-21 22:27:13,322 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 923
[2024-11-21 22:27:13,323 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:13,323 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:27:13,336 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-21 22:27:13,524 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-11-21 22:27:13,525 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:13,525 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:13,525 INFO  L85        PathProgramCache]: Analyzing trace with hash -1545547188, now seen corresponding path program 1 times
[2024-11-21 22:27:13,525 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:13,525 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117950825]
[2024-11-21 22:27:13,525 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:13,526 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:13,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:14,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 1495 backedges. 988 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked.
[2024-11-21 22:27:14,371 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:14,371 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117950825]
[2024-11-21 22:27:14,371 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117950825] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:14,371 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:27:14,371 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:27:14,372 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46459074]
[2024-11-21 22:27:14,372 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:14,373 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:27:14,373 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:14,378 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:27:14,378 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:27:14,379 INFO  L87              Difference]: Start difference. First operand 15796 states and 16530 transitions. Second operand  has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:15,107 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:15,107 INFO  L93              Difference]: Finished difference Result 30932 states and 32394 transitions.
[2024-11-21 22:27:15,107 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:15,108 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 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 922
[2024-11-21 22:27:15,108 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:15,125 INFO  L225             Difference]: With dead ends: 30932
[2024-11-21 22:27:15,125 INFO  L226             Difference]: Without dead ends: 15796
[2024-11-21 22:27:15,139 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
[2024-11-21 22:27:15,139 INFO  L432           NwaCegarLoop]: 421 mSDtfsCounter, 109 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:15,140 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 427 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-21 22:27:15,151 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15796 states.
[2024-11-21 22:27:15,302 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 15467.
[2024-11-21 22:27:15,312 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15467 states, 15466 states have (on average 1.0435148066727014) internal successors, (16139), 15466 states have internal predecessors, (16139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:15,328 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15467 states to 15467 states and 16139 transitions.
[2024-11-21 22:27:15,328 INFO  L78                 Accepts]: Start accepts. Automaton has 15467 states and 16139 transitions. Word has length 922
[2024-11-21 22:27:15,329 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:15,329 INFO  L471      AbstractCegarLoop]: Abstraction has 15467 states and 16139 transitions.
[2024-11-21 22:27:15,329 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:15,330 INFO  L276                IsEmpty]: Start isEmpty. Operand 15467 states and 16139 transitions.
[2024-11-21 22:27:15,345 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 956
[2024-11-21 22:27:15,345 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:15,346 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:27:15,346 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-21 22:27:15,346 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:15,347 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:15,347 INFO  L85        PathProgramCache]: Analyzing trace with hash -1121139085, now seen corresponding path program 1 times
[2024-11-21 22:27:15,347 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:15,347 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525810742]
[2024-11-21 22:27:15,347 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:15,347 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:15,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:16,665 INFO  L134       CoverageAnalysis]: Checked inductivity of 1431 backedges. 1047 proven. 258 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2024-11-21 22:27:16,665 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:16,665 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525810742]
[2024-11-21 22:27:16,665 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525810742] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:27:16,665 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345747589]
[2024-11-21 22:27:16,666 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:16,666 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:27:16,666 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:27:16,670 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)
[2024-11-21 22:27:16,671 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-21 22:27:16,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:16,921 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-21 22:27:16,932 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:27:17,066 INFO  L134       CoverageAnalysis]: Checked inductivity of 1431 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked.
[2024-11-21 22:27:17,067 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 22:27:17,067 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345747589] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:17,067 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-21 22:27:17,067 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8
[2024-11-21 22:27:17,067 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073742353]
[2024-11-21 22:27:17,068 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:17,068 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:27:17,069 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:17,069 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:27:17,069 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-21 22:27:17,070 INFO  L87              Difference]: Start difference. First operand 15467 states and 16139 transitions. Second operand  has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:17,770 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:17,771 INFO  L93              Difference]: Finished difference Result 32248 states and 33628 transitions.
[2024-11-21 22:27:17,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:17,771 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 955
[2024-11-21 22:27:17,772 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:17,785 INFO  L225             Difference]: With dead ends: 32248
[2024-11-21 22:27:17,785 INFO  L226             Difference]: Without dead ends: 15467
[2024-11-21 22:27:17,796 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 960 GetRequests, 954 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-21 22:27:17,797 INFO  L432           NwaCegarLoop]: 424 mSDtfsCounter, 269 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:17,797 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 430 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-21 22:27:17,810 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15467 states.
[2024-11-21 22:27:17,926 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15467 to 15467.
[2024-11-21 22:27:17,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15467 states, 15466 states have (on average 1.0293547135652399) internal successors, (15920), 15466 states have internal predecessors, (15920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:17,956 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15467 states to 15467 states and 15920 transitions.
[2024-11-21 22:27:17,957 INFO  L78                 Accepts]: Start accepts. Automaton has 15467 states and 15920 transitions. Word has length 955
[2024-11-21 22:27:17,958 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:17,958 INFO  L471      AbstractCegarLoop]: Abstraction has 15467 states and 15920 transitions.
[2024-11-21 22:27:17,958 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:17,958 INFO  L276                IsEmpty]: Start isEmpty. Operand 15467 states and 15920 transitions.
[2024-11-21 22:27:17,977 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1207
[2024-11-21 22:27:17,978 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:17,978 INFO  L215           NwaCegarLoop]: trace histogram [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, 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, 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]
[2024-11-21 22:27:17,988 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-21 22:27:18,179 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,SelfDestructingSolverStorable15
[2024-11-21 22:27:18,179 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:18,180 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:18,180 INFO  L85        PathProgramCache]: Analyzing trace with hash 1551524520, now seen corresponding path program 1 times
[2024-11-21 22:27:18,180 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:18,180 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038224233]
[2024-11-21 22:27:18,180 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:18,180 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:18,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:18,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 3109 backedges. 2119 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked.
[2024-11-21 22:27:18,745 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:18,745 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038224233]
[2024-11-21 22:27:18,745 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038224233] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:18,745 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:27:18,745 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:27:18,745 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725335363]
[2024-11-21 22:27:18,745 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:18,746 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:27:18,746 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:18,747 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:27:18,747 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:27:18,747 INFO  L87              Difference]: Start difference. First operand 15467 states and 15920 transitions. Second operand  has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:19,395 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:19,395 INFO  L93              Difference]: Finished difference Result 30274 states and 31174 transitions.
[2024-11-21 22:27:19,395 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:19,396 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 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 1206
[2024-11-21 22:27:19,396 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:19,411 INFO  L225             Difference]: With dead ends: 30274
[2024-11-21 22:27:19,412 INFO  L226             Difference]: Without dead ends: 15467
[2024-11-21 22:27:19,420 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
[2024-11-21 22:27:19,421 INFO  L432           NwaCegarLoop]: 422 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:19,421 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 428 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-21 22:27:19,430 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15467 states.
[2024-11-21 22:27:19,527 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15467 to 14809.
[2024-11-21 22:27:19,536 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14809 states, 14808 states have (on average 1.0243787142085359) internal successors, (15169), 14808 states have internal predecessors, (15169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:19,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14809 states to 14809 states and 15169 transitions.
[2024-11-21 22:27:19,552 INFO  L78                 Accepts]: Start accepts. Automaton has 14809 states and 15169 transitions. Word has length 1206
[2024-11-21 22:27:19,553 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:19,553 INFO  L471      AbstractCegarLoop]: Abstraction has 14809 states and 15169 transitions.
[2024-11-21 22:27:19,553 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:19,553 INFO  L276                IsEmpty]: Start isEmpty. Operand 14809 states and 15169 transitions.
[2024-11-21 22:27:19,571 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1208
[2024-11-21 22:27:19,571 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:19,572 INFO  L215           NwaCegarLoop]: trace histogram [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, 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, 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]
[2024-11-21 22:27:19,572 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-21 22:27:19,572 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:19,573 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:19,573 INFO  L85        PathProgramCache]: Analyzing trace with hash 748345937, now seen corresponding path program 1 times
[2024-11-21 22:27:19,573 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:19,573 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340811686]
[2024-11-21 22:27:19,574 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:19,574 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:19,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:20,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 3116 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 2412 trivial. 0 not checked.
[2024-11-21 22:27:20,274 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:20,274 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340811686]
[2024-11-21 22:27:20,274 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340811686] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:20,275 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:27:20,275 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:27:20,275 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868715298]
[2024-11-21 22:27:20,275 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:20,276 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:27:20,277 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:20,277 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:27:20,277 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:27:20,278 INFO  L87              Difference]: Start difference. First operand 14809 states and 15169 transitions. Second operand  has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:21,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:21,016 INFO  L93              Difference]: Finished difference Result 32248 states and 33093 transitions.
[2024-11-21 22:27:21,017 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:21,017 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 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 1207
[2024-11-21 22:27:21,018 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:21,033 INFO  L225             Difference]: With dead ends: 32248
[2024-11-21 22:27:21,033 INFO  L226             Difference]: Without dead ends: 15796
[2024-11-21 22:27:21,043 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
[2024-11-21 22:27:21,044 INFO  L432           NwaCegarLoop]: 406 mSDtfsCounter, 274 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:21,044 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 411 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-21 22:27:21,056 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15796 states.
[2024-11-21 22:27:21,178 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 13822.
[2024-11-21 22:27:21,186 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13822 states, 13821 states have (on average 1.0228637580493452) internal successors, (14137), 13821 states have internal predecessors, (14137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:21,201 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13822 states to 13822 states and 14137 transitions.
[2024-11-21 22:27:21,202 INFO  L78                 Accepts]: Start accepts. Automaton has 13822 states and 14137 transitions. Word has length 1207
[2024-11-21 22:27:21,203 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:21,203 INFO  L471      AbstractCegarLoop]: Abstraction has 13822 states and 14137 transitions.
[2024-11-21 22:27:21,203 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:21,203 INFO  L276                IsEmpty]: Start isEmpty. Operand 13822 states and 14137 transitions.
[2024-11-21 22:27:21,229 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1336
[2024-11-21 22:27:21,229 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:27:21,230 INFO  L215           NwaCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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]
[2024-11-21 22:27:21,230 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-21 22:27:21,230 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:27:21,230 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:27:21,231 INFO  L85        PathProgramCache]: Analyzing trace with hash -260878054, now seen corresponding path program 1 times
[2024-11-21 22:27:21,231 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:27:21,231 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748592118]
[2024-11-21 22:27:21,231 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:21,231 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:27:21,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:22,705 INFO  L134       CoverageAnalysis]: Checked inductivity of 3455 backedges. 655 proven. 1424 refuted. 0 times theorem prover too weak. 1376 trivial. 0 not checked.
[2024-11-21 22:27:22,705 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:27:22,706 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748592118]
[2024-11-21 22:27:22,706 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748592118] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:27:22,706 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234253882]
[2024-11-21 22:27:22,706 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:27:22,706 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:27:22,706 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:27:22,707 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)
[2024-11-21 22:27:22,708 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-21 22:27:23,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:27:23,023 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-21 22:27:23,036 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:27:23,184 INFO  L134       CoverageAnalysis]: Checked inductivity of 3455 backedges. 675 proven. 0 refuted. 0 times theorem prover too weak. 2780 trivial. 0 not checked.
[2024-11-21 22:27:23,184 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 22:27:23,184 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [234253882] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:27:23,184 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-21 22:27:23,185 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6
[2024-11-21 22:27:23,185 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297872733]
[2024-11-21 22:27:23,185 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:27:23,186 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:27:23,186 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:27:23,187 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:27:23,187 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:27:23,187 INFO  L87              Difference]: Start difference. First operand 13822 states and 14137 transitions. Second operand  has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:23,866 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:27:23,866 INFO  L93              Difference]: Finished difference Result 26982 states and 27607 transitions.
[2024-11-21 22:27:23,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:27:23,867 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 1335
[2024-11-21 22:27:23,868 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:27:23,868 INFO  L225             Difference]: With dead ends: 26982
[2024-11-21 22:27:23,868 INFO  L226             Difference]: Without dead ends: 0
[2024-11-21 22:27:23,877 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1340 GetRequests, 1336 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-21 22:27:23,877 INFO  L432           NwaCegarLoop]: 45 mSDtfsCounter, 290 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:27:23,878 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 49 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-21 22:27:23,878 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-21 22:27:23,878 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-21 22:27:23,878 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:23,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-21 22:27:23,879 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1335
[2024-11-21 22:27:23,879 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:27:23,879 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-21 22:27:23,879 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:27:23,879 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-21 22:27:23,879 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-21 22:27:23,881 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-21 22:27:23,889 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-21 22:27:24,082 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:27:24,085 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:27:24,087 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-21 22:27:24,998 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-21 22:27:25,025 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:27:25 BoogieIcfgContainer
[2024-11-21 22:27:25,025 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-21 22:27:25,026 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-21 22:27:25,026 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-21 22:27:25,026 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-21 22:27:25,027 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:45" (3/4) ...
[2024-11-21 22:27:25,029 INFO  L142         WitnessPrinter]: Generating witness for correct program
[2024-11-21 22:27:25,066 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-11-21 22:27:25,068 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-21 22:27:25,070 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-21 22:27:25,072 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-21 22:27:25,292 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-21 22:27:25,292 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-21 22:27:25,292 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-21 22:27:25,293 INFO  L158              Benchmark]: Toolchain (without parser) took 43087.26ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 113.6MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 274.7MB. Max. memory is 16.1GB.
[2024-11-21 22:27:25,296 INFO  L158              Benchmark]: CDTParser took 0.20ms. Allocated memory is still 167.8MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-21 22:27:25,297 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 930.03ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 49.4MB in the end (delta: 63.6MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB.
[2024-11-21 22:27:25,297 INFO  L158              Benchmark]: Boogie Procedure Inliner took 227.45ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 49.4MB in the beginning and 200.1MB in the end (delta: -150.7MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB.
[2024-11-21 22:27:25,297 INFO  L158              Benchmark]: Boogie Preprocessor took 226.09ms. Allocated memory is still 255.9MB. Free memory was 200.1MB in the beginning and 165.5MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB.
[2024-11-21 22:27:25,297 INFO  L158              Benchmark]: RCFGBuilder took 2193.50ms. Allocated memory is still 255.9MB. Free memory was 165.5MB in the beginning and 109.4MB in the end (delta: 56.0MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB.
[2024-11-21 22:27:25,298 INFO  L158              Benchmark]: TraceAbstraction took 39236.42ms. Allocated memory was 255.9MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 108.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 984.2MB. Max. memory is 16.1GB.
[2024-11-21 22:27:25,299 INFO  L158              Benchmark]: Witness Printer took 266.82ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-21 22:27:25,300 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20ms. Allocated memory is still 167.8MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 930.03ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 49.4MB in the end (delta: 63.6MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 227.45ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 49.4MB in the beginning and 200.1MB in the end (delta: -150.7MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 226.09ms. Allocated memory is still 255.9MB. Free memory was 200.1MB in the beginning and 165.5MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB.
 * RCFGBuilder took 2193.50ms. Allocated memory is still 255.9MB. Free memory was 165.5MB in the beginning and 109.4MB in the end (delta: 56.0MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 39236.42ms. Allocated memory was 255.9MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 108.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 984.2MB. Max. memory is 16.1GB.
 * Witness Printer took 266.82ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 110]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.2s, OverallIterations: 19, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 21.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5650 SdHoareTripleChecker+Valid, 19.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5650 mSDsluCounter, 4389 SdHoareTripleChecker+Invalid, 15.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 138 mSDsCounter, 2902 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18617 IncrementalHoareTripleChecker+Invalid, 21519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2902 mSolverCounterUnsat, 4251 mSDtfsCounter, 18617 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3198 GetRequests, 3158 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15796occurred in iteration=13, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 5593 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 14531 NumberOfCodeBlocks, 14531 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 14509 ConstructedInterpolants, 0 QuantifiedInterpolants, 40242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3694 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 22 InterpolantComputations, 19 PerfectInterpolantSequences, 23587/25527 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 1783]: Loop Invariant
    Derived loop invariant: ((((((((((((((((((((a16 == 9) && (7 == a12)) || ((a16 <= 8) && (a12 <= 6))) || (((a12 == 9) && (a15 <= 3)) && (a16 == 12))) || (((a16 == 9) && (a12 <= 6)) && (4 <= a15))) || ((a12 == 9) && (a16 == 9))) || ((a16 <= 8) && (a12 == 9))) || (((a15 <= 3) && (a16 <= 11)) && (7 == a12))) || ((((a15 <= 3) && (a12 == 8)) && (10 <= a16)) && (a16 <= 11))) || (((a12 == 9) && (a15 <= 3)) && (a16 <= 11))) || ((a16 == 9) && (a12 == 8))) || (((a15 <= 3) && (a16 == 12)) && (7 == a12))) || (((a16 == 9) && (5 == a12)) && (a15 == 3))) || (((a15 <= 3) && (a12 == 8)) && (a16 == 12))) || ((((0 <= ((long long) 87 + a18)) && (a15 <= 3)) && (a16 == 12)) && (a12 <= 6))) || (((a16 == 12) && (5 == a12)) && (a15 == 3))) || (((a16 <= 8) && (0 <= ((long long) 87 + a18))) && (a15 <= 3))) || (((a16 <= 8) && (a12 == 8)) && (4 <= a15))) || ((a16 <= 8) && (7 == a12))) || (((10 <= a16) && (a12 <= 6)) && (a16 <= 11)))
RESULT: Ultimate proved your program to be correct!
[2024-11-21 22:27:25,322 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE