./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.8.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 48c9605d
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.8.prop1-back-serstep.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 64bit --witnessprinter.graph.data.programhash 9ef61f068a8126fec6af6cf6a211fa3dc7f8659e8a24e8da0b8d736f4ceaeaf2
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-48c9605-m
[2025-02-07 23:22:48,489 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-07 23:22:48,561 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-02-07 23:22:48,565 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-07 23:22:48,565 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-07 23:22:48,585 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-07 23:22:48,586 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-07 23:22:48,586 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-07 23:22:48,586 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-07 23:22:48,586 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-07 23:22:48,587 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-07 23:22:48,587 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-07 23:22:48,588 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-07 23:22:48,588 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-07 23:22:48,588 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-07 23:22:48,588 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-07 23:22:48,588 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-07 23:22:48,589 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-07 23:22:48,589 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 23:22:48,590 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-07 23:22:48,590 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-07 23:22:48,590 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-07 23:22:48,590 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-07 23:22:48,590 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-07 23:22:48,590 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-07 23:22:48,590 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-07 23:22:48,590 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-07 23:22:48,591 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-07 23:22:48,591 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-07 23:22:48,591 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
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-jdk21/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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ef61f068a8126fec6af6cf6a211fa3dc7f8659e8a24e8da0b8d736f4ceaeaf2
[2025-02-07 23:22:48,756 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-07 23:22:48,761 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-07 23:22:48,763 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-07 23:22:48,763 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-07 23:22:48,763 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-07 23:22:48,764 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.8.prop1-back-serstep.c
[2025-02-07 23:22:49,862 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/effb01faf/bcfc6e535ffc486dbf5e7c458b186875/FLAGcaaf4d6d3
[2025-02-07 23:22:50,311 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-07 23:22:50,312 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.8.prop1-back-serstep.c
[2025-02-07 23:22:50,326 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/effb01faf/bcfc6e535ffc486dbf5e7c458b186875/FLAGcaaf4d6d3
[2025-02-07 23:22:50,337 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/effb01faf/bcfc6e535ffc486dbf5e7c458b186875
[2025-02-07 23:22:50,339 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-07 23:22:50,340 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-07 23:22:50,341 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-07 23:22:50,341 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-07 23:22:50,344 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-07 23:22:50,345 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:22:50" (1/1) ...
[2025-02-07 23:22:50,346 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e620d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:50, skipping insertion in model container
[2025-02-07 23:22:50,346 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:22:50" (1/1) ...
[2025-02-07 23:22:50,388 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-07 23:22:50,518 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.8.prop1-back-serstep.c[1172,1185]
[2025-02-07 23:22:50,905 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 23:22:50,912 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-07 23:22:50,920 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.8.prop1-back-serstep.c[1172,1185]
[2025-02-07 23:22:51,143 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 23:22:51,153 INFO  L204         MainTranslator]: Completed translation
[2025-02-07 23:22:51,154 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51 WrapperNode
[2025-02-07 23:22:51,154 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-07 23:22:51,155 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-07 23:22:51,155 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-07 23:22:51,155 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-07 23:22:51,159 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:51,236 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:52,277 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 11229
[2025-02-07 23:22:52,277 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-07 23:22:52,278 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-07 23:22:52,278 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-07 23:22:52,278 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-07 23:22:52,289 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:52,291 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:52,768 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:52,915 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].
[2025-02-07 23:22:52,916 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:52,916 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:53,218 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:53,246 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:53,283 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:53,322 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:53,461 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-07 23:22:53,462 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-07 23:22:53,463 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-07 23:22:53,463 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-07 23:22:53,463 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (1/1) ...
[2025-02-07 23:22:53,467 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 23:22:53,477 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-07 23:22:53,490 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-02-07 23:22:53,497 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-02-07 23:22:53,514 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-07 23:22:53,514 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-07 23:22:53,514 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-07 23:22:53,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-07 23:22:53,967 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-07 23:22:53,969 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-07 23:23:07,889 INFO  L?                        ?]: Removed 6116 outVars from TransFormulas that were not future-live.
[2025-02-07 23:23:07,889 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-07 23:23:08,133 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-07 23:23:08,134 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-07 23:23:08,134 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:23:08 BoogieIcfgContainer
[2025-02-07 23:23:08,134 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-07 23:23:08,136 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-07 23:23:08,136 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-07 23:23:08,139 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-07 23:23:08,139 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:22:50" (1/3) ...
[2025-02-07 23:23:08,140 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e268ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:23:08, skipping insertion in model container
[2025-02-07 23:23:08,140 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:51" (2/3) ...
[2025-02-07 23:23:08,140 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e268ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:23:08, skipping insertion in model container
[2025-02-07 23:23:08,140 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:23:08" (3/3) ...
[2025-02-07 23:23:08,140 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lann.8.prop1-back-serstep.c
[2025-02-07 23:23:08,152 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-07 23:23:08,155 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.lann.8.prop1-back-serstep.c that has 1 procedures, 3928 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-07 23:23:08,232 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-07 23:23:08,240 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;@491615ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-07 23:23:08,240 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-07 23:23:08,249 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3928 states, 3926 states have (on average 1.5) internal successors, (5889), 3927 states have internal predecessors, (5889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:08,265 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 351
[2025-02-07 23:23:08,266 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:08,267 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:08,267 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:08,270 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:08,271 INFO  L85        PathProgramCache]: Analyzing trace with hash 840062464, now seen corresponding path program 1 times
[2025-02-07 23:23:08,276 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:08,276 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031160585]
[2025-02-07 23:23:08,276 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:08,277 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:08,394 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 350 statements into 1 equivalence classes.
[2025-02-07 23:23:08,581 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 350 of 350 statements.
[2025-02-07 23:23:08,582 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:08,582 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:09,943 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 23:23:09,945 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:09,945 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031160585]
[2025-02-07 23:23:09,946 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031160585] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:09,946 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:09,947 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:23:09,948 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400448892]
[2025-02-07 23:23:09,948 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:09,951 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:23:09,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:09,970 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:23:09,971 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:09,979 INFO  L87              Difference]: Start difference. First operand  has 3928 states, 3926 states have (on average 1.5) internal successors, (5889), 3927 states have internal predecessors, (5889), 0 states have call successors, (0), 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 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:11,695 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:11,696 INFO  L93              Difference]: Finished difference Result 7687 states and 11527 transitions.
[2025-02-07 23:23:11,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:11,698 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 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 350
[2025-02-07 23:23:11,699 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:11,717 INFO  L225             Difference]: With dead ends: 7687
[2025-02-07 23:23:11,717 INFO  L226             Difference]: Without dead ends: 3928
[2025-02-07 23:23:11,727 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:11,732 INFO  L435           NwaCegarLoop]: 4904 mSDtfsCounter, 0 mSDsluCounter, 9803 mSDsCounter, 0 mSdLazyCounter, 2950 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14707 SdHoareTripleChecker+Invalid, 2950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:11,732 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14707 Invalid, 2950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2950 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-02-07 23:23:11,763 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3928 states.
[2025-02-07 23:23:11,880 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3928 to 3928.
[2025-02-07 23:23:11,889 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3928 states, 3927 states have (on average 1.499363381716323) internal successors, (5888), 3927 states have internal predecessors, (5888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:11,914 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3928 states to 3928 states and 5888 transitions.
[2025-02-07 23:23:11,915 INFO  L78                 Accepts]: Start accepts. Automaton has 3928 states and 5888 transitions. Word has length 350
[2025-02-07 23:23:11,916 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:11,916 INFO  L471      AbstractCegarLoop]: Abstraction has 3928 states and 5888 transitions.
[2025-02-07 23:23:11,916 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:11,916 INFO  L276                IsEmpty]: Start isEmpty. Operand 3928 states and 5888 transitions.
[2025-02-07 23:23:11,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 352
[2025-02-07 23:23:11,920 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:11,921 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:11,921 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-07 23:23:11,921 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:11,922 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:11,922 INFO  L85        PathProgramCache]: Analyzing trace with hash 276817400, now seen corresponding path program 1 times
[2025-02-07 23:23:11,922 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:11,922 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351832562]
[2025-02-07 23:23:11,922 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:11,923 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:11,987 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 351 statements into 1 equivalence classes.
[2025-02-07 23:23:12,063 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 351 of 351 statements.
[2025-02-07 23:23:12,063 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:12,063 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:12,504 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 23:23:12,504 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:12,504 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351832562]
[2025-02-07 23:23:12,505 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351832562] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:12,505 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:12,505 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:23:12,505 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896089957]
[2025-02-07 23:23:12,505 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:12,506 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:23:12,507 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:12,507 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:23:12,508 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:12,508 INFO  L87              Difference]: Start difference. First operand 3928 states and 5888 transitions. Second operand  has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:13,896 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:13,896 INFO  L93              Difference]: Finished difference Result 7689 states and 11526 transitions.
[2025-02-07 23:23:13,896 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:13,897 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 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 351
[2025-02-07 23:23:13,897 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:13,907 INFO  L225             Difference]: With dead ends: 7689
[2025-02-07 23:23:13,907 INFO  L226             Difference]: Without dead ends: 3930
[2025-02-07 23:23:13,911 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:13,911 INFO  L435           NwaCegarLoop]: 4904 mSDtfsCounter, 0 mSDsluCounter, 9800 mSDsCounter, 0 mSdLazyCounter, 2953 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14704 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:13,911 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14704 Invalid, 2953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2953 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-02-07 23:23:13,915 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3930 states.
[2025-02-07 23:23:13,947 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3930 to 3930.
[2025-02-07 23:23:13,951 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3930 states, 3929 states have (on average 1.499109188088572) internal successors, (5890), 3929 states have internal predecessors, (5890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:13,958 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3930 states to 3930 states and 5890 transitions.
[2025-02-07 23:23:13,958 INFO  L78                 Accepts]: Start accepts. Automaton has 3930 states and 5890 transitions. Word has length 351
[2025-02-07 23:23:13,958 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:13,958 INFO  L471      AbstractCegarLoop]: Abstraction has 3930 states and 5890 transitions.
[2025-02-07 23:23:13,958 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:13,959 INFO  L276                IsEmpty]: Start isEmpty. Operand 3930 states and 5890 transitions.
[2025-02-07 23:23:13,961 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 353
[2025-02-07 23:23:13,961 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:13,961 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:13,961 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-07 23:23:13,962 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:13,962 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:13,962 INFO  L85        PathProgramCache]: Analyzing trace with hash 1922919675, now seen corresponding path program 1 times
[2025-02-07 23:23:13,962 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:13,962 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724566817]
[2025-02-07 23:23:13,962 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:13,962 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:14,008 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 352 statements into 1 equivalence classes.
[2025-02-07 23:23:14,043 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 352 of 352 statements.
[2025-02-07 23:23:14,043 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:14,043 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:14,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 23:23:14,902 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:14,902 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724566817]
[2025-02-07 23:23:14,902 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724566817] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:14,902 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:14,902 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:23:14,902 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561473098]
[2025-02-07 23:23:14,902 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:14,903 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-02-07 23:23:14,903 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:14,904 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-02-07 23:23:14,904 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-02-07 23:23:14,904 INFO  L87              Difference]: Start difference. First operand 3930 states and 5890 transitions. Second operand  has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 5 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)
[2025-02-07 23:23:18,265 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:18,265 INFO  L93              Difference]: Finished difference Result 11430 states and 17133 transitions.
[2025-02-07 23:23:18,266 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-02-07 23:23:18,267 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 5 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 352
[2025-02-07 23:23:18,267 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:18,287 INFO  L225             Difference]: With dead ends: 11430
[2025-02-07 23:23:18,288 INFO  L226             Difference]: Without dead ends: 7669
[2025-02-07 23:23:18,293 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2025-02-07 23:23:18,296 INFO  L435           NwaCegarLoop]: 4900 mSDtfsCounter, 5588 mSDsluCounter, 19385 mSDsCounter, 0 mSdLazyCounter, 4891 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5588 SdHoareTripleChecker+Valid, 24285 SdHoareTripleChecker+Invalid, 4891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:18,296 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5588 Valid, 24285 Invalid, 4891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4891 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2025-02-07 23:23:18,306 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7669 states.
[2025-02-07 23:23:18,366 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7669 to 4448.
[2025-02-07 23:23:18,372 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4448 states, 4447 states have (on average 1.4989880818529346) internal successors, (6666), 4447 states have internal predecessors, (6666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:18,376 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4448 states to 4448 states and 6666 transitions.
[2025-02-07 23:23:18,376 INFO  L78                 Accepts]: Start accepts. Automaton has 4448 states and 6666 transitions. Word has length 352
[2025-02-07 23:23:18,377 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:18,377 INFO  L471      AbstractCegarLoop]: Abstraction has 4448 states and 6666 transitions.
[2025-02-07 23:23:18,377 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 5 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)
[2025-02-07 23:23:18,377 INFO  L276                IsEmpty]: Start isEmpty. Operand 4448 states and 6666 transitions.
[2025-02-07 23:23:18,448 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2232
[2025-02-07 23:23:18,449 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:18,450 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:18,451 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-07 23:23:18,451 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:18,451 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:18,452 INFO  L85        PathProgramCache]: Analyzing trace with hash -1308246899, now seen corresponding path program 1 times
[2025-02-07 23:23:18,452 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:18,452 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563125486]
[2025-02-07 23:23:18,453 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:18,453 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:18,789 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2231 statements into 1 equivalence classes.
[2025-02-07 23:23:20,371 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2231 of 2231 statements.
[2025-02-07 23:23:20,372 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:20,372 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:24,991 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked.
[2025-02-07 23:23:24,993 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:24,993 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563125486]
[2025-02-07 23:23:24,993 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563125486] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:24,993 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:24,993 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:23:24,993 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846047673]
[2025-02-07 23:23:24,994 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:24,995 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:23:24,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:24,997 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:23:24,998 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:24,998 INFO  L87              Difference]: Start difference. First operand 4448 states and 6666 transitions. Second operand  has 5 states, 5 states have (on average 394.8) internal successors, (1974), 5 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:26,378 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:26,378 INFO  L93              Difference]: Finished difference Result 8213 states and 12308 transitions.
[2025-02-07 23:23:26,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:26,379 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 394.8) internal successors, (1974), 5 states have internal predecessors, (1974), 0 states have call successors, (0), 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 2231
[2025-02-07 23:23:26,381 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:26,391 INFO  L225             Difference]: With dead ends: 8213
[2025-02-07 23:23:26,391 INFO  L226             Difference]: Without dead ends: 4452
[2025-02-07 23:23:26,395 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:26,395 INFO  L435           NwaCegarLoop]: 4904 mSDtfsCounter, 0 mSDsluCounter, 9800 mSDsCounter, 0 mSdLazyCounter, 2954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14704 SdHoareTripleChecker+Invalid, 2955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:26,396 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14704 Invalid, 2955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2954 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-02-07 23:23:26,399 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4452 states.
[2025-02-07 23:23:26,438 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4452 to 4448.
[2025-02-07 23:23:26,444 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4448 states, 4447 states have (on average 1.4989880818529346) internal successors, (6666), 4447 states have internal predecessors, (6666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:26,451 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4448 states to 4448 states and 6666 transitions.
[2025-02-07 23:23:26,452 INFO  L78                 Accepts]: Start accepts. Automaton has 4448 states and 6666 transitions. Word has length 2231
[2025-02-07 23:23:26,454 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:26,454 INFO  L471      AbstractCegarLoop]: Abstraction has 4448 states and 6666 transitions.
[2025-02-07 23:23:26,455 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 394.8) internal successors, (1974), 5 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:26,455 INFO  L276                IsEmpty]: Start isEmpty. Operand 4448 states and 6666 transitions.
[2025-02-07 23:23:26,478 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2233
[2025-02-07 23:23:26,478 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:26,480 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:26,480 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-07 23:23:26,481 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:26,482 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:26,482 INFO  L85        PathProgramCache]: Analyzing trace with hash -12580053, now seen corresponding path program 1 times
[2025-02-07 23:23:26,482 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:26,482 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046248843]
[2025-02-07 23:23:26,482 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:26,482 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:26,694 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2232 statements into 1 equivalence classes.
[2025-02-07 23:23:27,646 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2232 of 2232 statements.
[2025-02-07 23:23:27,646 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:27,646 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:30,535 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked.
[2025-02-07 23:23:30,536 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:30,536 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046248843]
[2025-02-07 23:23:30,536 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046248843] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:30,536 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:30,536 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:23:30,536 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962054082]
[2025-02-07 23:23:30,536 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:30,538 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:23:30,538 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:30,539 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:23:30,539 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:30,544 INFO  L87              Difference]: Start difference. First operand 4448 states and 6666 transitions. Second operand  has 4 states, 4 states have (on average 494.25) internal successors, (1977), 4 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:32,002 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:32,002 INFO  L93              Difference]: Finished difference Result 8217 states and 12314 transitions.
[2025-02-07 23:23:32,003 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:32,004 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 494.25) internal successors, (1977), 4 states have internal predecessors, (1977), 0 states have call successors, (0), 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 2232
[2025-02-07 23:23:32,007 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:32,024 INFO  L225             Difference]: With dead ends: 8217
[2025-02-07 23:23:32,025 INFO  L226             Difference]: Without dead ends: 4452
[2025-02-07 23:23:32,031 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:32,033 INFO  L435           NwaCegarLoop]: 4904 mSDtfsCounter, 0 mSDsluCounter, 9800 mSDsCounter, 0 mSdLazyCounter, 2953 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14704 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:32,033 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14704 Invalid, 2953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2953 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-02-07 23:23:32,038 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4452 states.
[2025-02-07 23:23:32,079 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4452 to 4450.
[2025-02-07 23:23:32,083 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4450 states, 4449 states have (on average 1.4987637671386829) internal successors, (6668), 4449 states have internal predecessors, (6668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:32,090 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 6668 transitions.
[2025-02-07 23:23:32,090 INFO  L78                 Accepts]: Start accepts. Automaton has 4450 states and 6668 transitions. Word has length 2232
[2025-02-07 23:23:32,092 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:32,092 INFO  L471      AbstractCegarLoop]: Abstraction has 4450 states and 6668 transitions.
[2025-02-07 23:23:32,092 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 494.25) internal successors, (1977), 4 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:32,092 INFO  L276                IsEmpty]: Start isEmpty. Operand 4450 states and 6668 transitions.
[2025-02-07 23:23:32,129 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2234
[2025-02-07 23:23:32,130 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:32,131 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:32,131 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-02-07 23:23:32,131 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:32,132 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:32,132 INFO  L85        PathProgramCache]: Analyzing trace with hash 309821448, now seen corresponding path program 1 times
[2025-02-07 23:23:32,132 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:32,132 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920182401]
[2025-02-07 23:23:32,133 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:32,133 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:32,306 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2233 statements into 1 equivalence classes.
[2025-02-07 23:23:33,085 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2233 of 2233 statements.
[2025-02-07 23:23:33,085 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:33,085 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:35,790 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked.
[2025-02-07 23:23:35,790 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:35,792 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920182401]
[2025-02-07 23:23:35,792 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920182401] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:35,792 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:35,793 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:23:35,793 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860456687]
[2025-02-07 23:23:35,793 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:35,794 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:23:35,797 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:35,798 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:23:35,798 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:35,799 INFO  L87              Difference]: Start difference. First operand 4450 states and 6668 transitions. Second operand  has 4 states, 4 states have (on average 495.0) internal successors, (1980), 4 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:36,940 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:36,941 INFO  L93              Difference]: Finished difference Result 8225 states and 12324 transitions.
[2025-02-07 23:23:36,941 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:36,942 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 495.0) internal successors, (1980), 4 states have internal predecessors, (1980), 0 states have call successors, (0), 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 2233
[2025-02-07 23:23:36,944 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:36,953 INFO  L225             Difference]: With dead ends: 8225
[2025-02-07 23:23:36,953 INFO  L226             Difference]: Without dead ends: 4454
[2025-02-07 23:23:36,957 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:36,957 INFO  L435           NwaCegarLoop]: 4904 mSDtfsCounter, 0 mSDsluCounter, 9800 mSDsCounter, 0 mSdLazyCounter, 2953 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14704 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:36,957 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14704 Invalid, 2953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2953 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2025-02-07 23:23:36,963 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4454 states.
[2025-02-07 23:23:37,026 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4452.
[2025-02-07 23:23:37,030 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4452 states, 4451 states have (on average 1.4985396540103348) internal successors, (6670), 4451 states have internal predecessors, (6670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:37,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4452 states to 4452 states and 6670 transitions.
[2025-02-07 23:23:37,035 INFO  L78                 Accepts]: Start accepts. Automaton has 4452 states and 6670 transitions. Word has length 2233
[2025-02-07 23:23:37,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:37,036 INFO  L471      AbstractCegarLoop]: Abstraction has 4452 states and 6670 transitions.
[2025-02-07 23:23:37,037 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 495.0) internal successors, (1980), 4 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:37,037 INFO  L276                IsEmpty]: Start isEmpty. Operand 4452 states and 6670 transitions.
[2025-02-07 23:23:37,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2235
[2025-02-07 23:23:37,081 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:37,082 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:37,083 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-02-07 23:23:37,084 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:37,085 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:37,085 INFO  L85        PathProgramCache]: Analyzing trace with hash 882989360, now seen corresponding path program 1 times
[2025-02-07 23:23:37,085 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:37,085 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888197544]
[2025-02-07 23:23:37,086 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:37,086 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:37,284 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2234 statements into 1 equivalence classes.
[2025-02-07 23:23:38,233 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2234 of 2234 statements.
[2025-02-07 23:23:38,233 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:38,233 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:41,257 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2025-02-07 23:23:41,257 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:41,257 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888197544]
[2025-02-07 23:23:41,258 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888197544] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:41,258 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:41,258 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:23:41,258 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453060537]
[2025-02-07 23:23:41,258 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:41,260 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:23:41,260 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:41,261 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:23:41,261 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:41,262 INFO  L87              Difference]: Start difference. First operand 4452 states and 6670 transitions. Second operand  has 5 states, 5 states have (on average 396.6) internal successors, (1983), 5 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:42,584 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:42,585 INFO  L93              Difference]: Finished difference Result 8233 states and 12334 transitions.
[2025-02-07 23:23:42,585 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:42,586 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 396.6) internal successors, (1983), 5 states have internal predecessors, (1983), 0 states have call successors, (0), 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 2234
[2025-02-07 23:23:42,588 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:42,594 INFO  L225             Difference]: With dead ends: 8233
[2025-02-07 23:23:42,594 INFO  L226             Difference]: Without dead ends: 4456
[2025-02-07 23:23:42,597 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:42,597 INFO  L435           NwaCegarLoop]: 4904 mSDtfsCounter, 0 mSDsluCounter, 9800 mSDsCounter, 0 mSdLazyCounter, 2954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14704 SdHoareTripleChecker+Invalid, 2955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:42,598 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14704 Invalid, 2955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2954 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-02-07 23:23:42,601 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4456 states.
[2025-02-07 23:23:42,638 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 4454.
[2025-02-07 23:23:42,641 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4454 states, 4453 states have (on average 1.4983157421962723) internal successors, (6672), 4453 states have internal predecessors, (6672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:42,646 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 6672 transitions.
[2025-02-07 23:23:42,646 INFO  L78                 Accepts]: Start accepts. Automaton has 4454 states and 6672 transitions. Word has length 2234
[2025-02-07 23:23:42,647 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:42,647 INFO  L471      AbstractCegarLoop]: Abstraction has 4454 states and 6672 transitions.
[2025-02-07 23:23:42,648 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 396.6) internal successors, (1983), 5 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:42,648 INFO  L276                IsEmpty]: Start isEmpty. Operand 4454 states and 6672 transitions.
[2025-02-07 23:23:42,692 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2236
[2025-02-07 23:23:42,693 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:42,694 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:42,694 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-02-07 23:23:42,694 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:42,695 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:42,696 INFO  L85        PathProgramCache]: Analyzing trace with hash -317154173, now seen corresponding path program 1 times
[2025-02-07 23:23:42,696 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:42,696 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035808656]
[2025-02-07 23:23:42,696 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:42,696 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:42,927 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2235 statements into 1 equivalence classes.
[2025-02-07 23:23:43,746 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2235 of 2235 statements.
[2025-02-07 23:23:43,747 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:43,747 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:46,162 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2025-02-07 23:23:46,162 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:46,162 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035808656]
[2025-02-07 23:23:46,162 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035808656] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:46,162 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:46,162 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:23:46,162 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474424340]
[2025-02-07 23:23:46,162 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:46,165 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:23:46,165 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:46,166 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:23:46,166 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:46,167 INFO  L87              Difference]: Start difference. First operand 4454 states and 6672 transitions. Second operand  has 5 states, 5 states have (on average 397.2) internal successors, (1986), 5 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:47,690 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:47,690 INFO  L93              Difference]: Finished difference Result 8241 states and 12344 transitions.
[2025-02-07 23:23:47,691 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:47,691 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 397.2) internal successors, (1986), 5 states have internal predecessors, (1986), 0 states have call successors, (0), 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 2235
[2025-02-07 23:23:47,693 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:47,698 INFO  L225             Difference]: With dead ends: 8241
[2025-02-07 23:23:47,698 INFO  L226             Difference]: Without dead ends: 4458
[2025-02-07 23:23:47,702 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:47,702 INFO  L435           NwaCegarLoop]: 4904 mSDtfsCounter, 0 mSDsluCounter, 14699 mSDsCounter, 0 mSdLazyCounter, 3940 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19603 SdHoareTripleChecker+Invalid, 3941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:47,702 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19603 Invalid, 3941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3940 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-02-07 23:23:47,706 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4458 states.
[2025-02-07 23:23:47,732 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4456.
[2025-02-07 23:23:47,736 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4456 states, 4455 states have (on average 1.4980920314253647) internal successors, (6674), 4455 states have internal predecessors, (6674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:47,740 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 6674 transitions.
[2025-02-07 23:23:47,740 INFO  L78                 Accepts]: Start accepts. Automaton has 4456 states and 6674 transitions. Word has length 2235
[2025-02-07 23:23:47,741 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:47,742 INFO  L471      AbstractCegarLoop]: Abstraction has 4456 states and 6674 transitions.
[2025-02-07 23:23:47,742 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 397.2) internal successors, (1986), 5 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:47,742 INFO  L276                IsEmpty]: Start isEmpty. Operand 4456 states and 6674 transitions.
[2025-02-07 23:23:47,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2237
[2025-02-07 23:23:47,764 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:47,765 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:47,766 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-02-07 23:23:47,766 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:47,767 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:47,767 INFO  L85        PathProgramCache]: Analyzing trace with hash -393980363, now seen corresponding path program 1 times
[2025-02-07 23:23:47,767 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:47,767 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913781486]
[2025-02-07 23:23:47,768 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:47,768 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:47,944 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2236 statements into 1 equivalence classes.
[2025-02-07 23:23:48,593 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2236 of 2236 statements.
[2025-02-07 23:23:48,593 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:48,593 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:51,120 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked.
[2025-02-07 23:23:51,121 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:51,121 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913781486]
[2025-02-07 23:23:51,121 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913781486] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:51,121 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:51,121 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:23:51,121 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920243361]
[2025-02-07 23:23:51,121 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:51,122 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:23:51,122 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:51,123 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:23:51,123 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:51,124 INFO  L87              Difference]: Start difference. First operand 4456 states and 6674 transitions. Second operand  has 5 states, 5 states have (on average 397.8) internal successors, (1989), 5 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:52,644 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:52,645 INFO  L93              Difference]: Finished difference Result 8249 states and 12354 transitions.
[2025-02-07 23:23:52,645 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:52,646 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 397.8) internal successors, (1989), 5 states have internal predecessors, (1989), 0 states have call successors, (0), 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 2236
[2025-02-07 23:23:52,647 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:52,653 INFO  L225             Difference]: With dead ends: 8249
[2025-02-07 23:23:52,653 INFO  L226             Difference]: Without dead ends: 4460
[2025-02-07 23:23:52,657 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:52,658 INFO  L435           NwaCegarLoop]: 4904 mSDtfsCounter, 0 mSDsluCounter, 14699 mSDsCounter, 0 mSdLazyCounter, 3940 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19603 SdHoareTripleChecker+Invalid, 3941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:52,658 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19603 Invalid, 3941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3940 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-02-07 23:23:52,662 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4460 states.
[2025-02-07 23:23:52,690 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 4458.
[2025-02-07 23:23:52,695 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4458 states, 4457 states have (on average 1.497868521426969) internal successors, (6676), 4457 states have internal predecessors, (6676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:52,699 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4458 states to 4458 states and 6676 transitions.
[2025-02-07 23:23:52,700 INFO  L78                 Accepts]: Start accepts. Automaton has 4458 states and 6676 transitions. Word has length 2236
[2025-02-07 23:23:52,701 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:52,701 INFO  L471      AbstractCegarLoop]: Abstraction has 4458 states and 6676 transitions.
[2025-02-07 23:23:52,702 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 397.8) internal successors, (1989), 5 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:52,702 INFO  L276                IsEmpty]: Start isEmpty. Operand 4458 states and 6676 transitions.
[2025-02-07 23:23:52,724 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2238
[2025-02-07 23:23:52,724 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:52,725 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:52,725 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-02-07 23:23:52,725 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:52,726 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:52,727 INFO  L85        PathProgramCache]: Analyzing trace with hash 503251454, now seen corresponding path program 1 times
[2025-02-07 23:23:52,727 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:52,727 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091327651]
[2025-02-07 23:23:52,727 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:52,727 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:52,904 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2237 statements into 1 equivalence classes.
[2025-02-07 23:23:53,761 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2237 of 2237 statements.
[2025-02-07 23:23:53,761 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:53,761 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:56,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2025-02-07 23:23:56,449 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:56,449 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091327651]
[2025-02-07 23:23:56,449 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091327651] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:56,449 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:56,450 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:23:56,450 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410858524]
[2025-02-07 23:23:56,450 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:56,451 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:23:56,451 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:56,452 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:23:56,452 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:56,452 INFO  L87              Difference]: Start difference. First operand 4458 states and 6676 transitions. Second operand  has 5 states, 5 states have (on average 398.4) internal successors, (1992), 5 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:57,847 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:57,847 INFO  L93              Difference]: Finished difference Result 8257 states and 12364 transitions.
[2025-02-07 23:23:57,847 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:57,848 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 398.4) internal successors, (1992), 5 states have internal predecessors, (1992), 0 states have call successors, (0), 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 2237
[2025-02-07 23:23:57,850 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:57,855 INFO  L225             Difference]: With dead ends: 8257
[2025-02-07 23:23:57,856 INFO  L226             Difference]: Without dead ends: 4462
[2025-02-07 23:23:57,859 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:57,859 INFO  L435           NwaCegarLoop]: 4904 mSDtfsCounter, 0 mSDsluCounter, 14699 mSDsCounter, 0 mSdLazyCounter, 3940 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19603 SdHoareTripleChecker+Invalid, 3941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:57,860 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19603 Invalid, 3941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3940 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-02-07 23:23:57,863 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4462 states.
[2025-02-07 23:23:57,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4462 to 4460.
[2025-02-07 23:23:57,892 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4460 states, 4459 states have (on average 1.4976452119309263) internal successors, (6678), 4459 states have internal predecessors, (6678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:57,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4460 states to 4460 states and 6678 transitions.
[2025-02-07 23:23:57,895 INFO  L78                 Accepts]: Start accepts. Automaton has 4460 states and 6678 transitions. Word has length 2237
[2025-02-07 23:23:57,896 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:57,896 INFO  L471      AbstractCegarLoop]: Abstraction has 4460 states and 6678 transitions.
[2025-02-07 23:23:57,897 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 398.4) internal successors, (1992), 5 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:57,897 INFO  L276                IsEmpty]: Start isEmpty. Operand 4460 states and 6678 transitions.
[2025-02-07 23:23:57,917 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2239
[2025-02-07 23:23:57,918 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:57,919 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:57,919 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2025-02-07 23:23:57,919 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:57,920 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:57,920 INFO  L85        PathProgramCache]: Analyzing trace with hash 2139296314, now seen corresponding path program 1 times
[2025-02-07 23:23:57,920 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:57,920 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096435019]
[2025-02-07 23:23:57,921 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:57,921 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:58,107 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2238 statements into 1 equivalence classes.
[2025-02-07 23:24:00,824 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2238 of 2238 statements.
[2025-02-07 23:24:00,824 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:24:00,824 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:24:03,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 23:24:03,553 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:24:03,553 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096435019]
[2025-02-07 23:24:03,553 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096435019] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:24:03,553 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:24:03,553 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:24:03,553 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818911705]
[2025-02-07 23:24:03,553 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:24:03,554 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:24:03,554 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:24:03,556 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:24:03,556 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:24:03,556 INFO  L87              Difference]: Start difference. First operand 4460 states and 6678 transitions. Second operand  has 4 states, 4 states have (on average 559.5) internal successors, (2238), 4 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:24:06,163 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:24:06,164 INFO  L93              Difference]: Finished difference Result 11432 states and 17115 transitions.
[2025-02-07 23:24:06,164 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-02-07 23:24:06,164 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 559.5) internal successors, (2238), 4 states have internal predecessors, (2238), 0 states have call successors, (0), 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 2238
[2025-02-07 23:24:06,166 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:24:06,179 INFO  L225             Difference]: With dead ends: 11432
[2025-02-07 23:24:06,179 INFO  L226             Difference]: Without dead ends: 4460
[2025-02-07 23:24:06,185 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:24:06,185 INFO  L435           NwaCegarLoop]: 5158 mSDtfsCounter, 2660 mSDsluCounter, 8798 mSDsCounter, 0 mSdLazyCounter, 4929 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 13956 SdHoareTripleChecker+Invalid, 5215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 4929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2025-02-07 23:24:06,186 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 13956 Invalid, 5215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 4929 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2025-02-07 23:24:06,190 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4460 states.
[2025-02-07 23:24:06,214 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 4460.
[2025-02-07 23:24:06,218 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4460 states, 4459 states have (on average 1.4974209464005381) internal successors, (6677), 4459 states have internal predecessors, (6677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:24:06,220 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4460 states to 4460 states and 6677 transitions.
[2025-02-07 23:24:06,221 INFO  L78                 Accepts]: Start accepts. Automaton has 4460 states and 6677 transitions. Word has length 2238
[2025-02-07 23:24:06,221 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:24:06,221 INFO  L471      AbstractCegarLoop]: Abstraction has 4460 states and 6677 transitions.
[2025-02-07 23:24:06,222 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 559.5) internal successors, (2238), 4 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:24:06,222 INFO  L276                IsEmpty]: Start isEmpty. Operand 4460 states and 6677 transitions.
[2025-02-07 23:24:06,242 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2240
[2025-02-07 23:24:06,242 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:24:06,243 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:24:06,243 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2025-02-07 23:24:06,244 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:24:06,244 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:24:06,245 INFO  L85        PathProgramCache]: Analyzing trace with hash -30501729, now seen corresponding path program 1 times
[2025-02-07 23:24:06,245 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:24:06,245 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578361377]
[2025-02-07 23:24:06,245 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:24:06,245 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:24:06,456 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2239 statements into 1 equivalence classes.
[2025-02-07 23:24:07,111 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2239 of 2239 statements.
[2025-02-07 23:24:07,112 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:24:07,112 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat