./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem18_label01.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 8fc3dc66
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem18_label01.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d0f957f5b0e83c1c14555e9ea8bf41ba11ff21748daf88fa4699e5464ac5d4ed
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-8fc3dc6-m
[2025-03-16 15:21:53,275 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-16 15:21:53,321 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-16 15:21:53,324 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-16 15:21:53,325 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-16 15:21:53,346 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-16 15:21:53,346 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-16 15:21:53,346 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-16 15:21:53,346 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-16 15:21:53,346 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-16 15:21:53,346 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-16 15:21:53,347 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-16 15:21:53,347 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-16 15:21:53,347 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-16 15:21:53,347 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-16 15:21:53,347 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-16 15:21:53,347 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-16 15:21:53,347 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-16 15:21:53,347 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-16 15:21:53,347 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-16 15:21:53,347 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-16 15:21:53,347 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-16 15:21:53,347 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-16 15:21:53,349 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-16 15:21:53,349 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-16 15:21:53,349 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-16 15:21:53,349 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-16 15:21:53,349 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-16 15:21:53,349 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-16 15:21:53,349 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-16 15:21:53,350 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-16 15:21:53,350 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-16 15:21:53,350 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 15:21:53,350 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-16 15:21:53,350 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-16 15:21:53,350 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-16 15:21:53,350 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-16 15:21:53,350 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-16 15:21:53,350 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-16 15:21:53,351 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-16 15:21:53,351 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-16 15:21:53,351 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-16 15:21:53,351 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-16 15:21:53,351 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/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0f957f5b0e83c1c14555e9ea8bf41ba11ff21748daf88fa4699e5464ac5d4ed
[2025-03-16 15:21:53,557 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-16 15:21:53,564 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-16 15:21:53,566 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-16 15:21:53,568 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-16 15:21:53,568 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-16 15:21:53,569 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem18_label01.c
[2025-03-16 15:21:54,714 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03236723e/75541c6d2fda4ee48de7205ad6c11b07/FLAG38cbcc6a3
[2025-03-16 15:21:55,066 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-16 15:21:55,067 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label01.c
[2025-03-16 15:21:55,089 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03236723e/75541c6d2fda4ee48de7205ad6c11b07/FLAG38cbcc6a3
[2025-03-16 15:21:55,293 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03236723e/75541c6d2fda4ee48de7205ad6c11b07
[2025-03-16 15:21:55,295 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-16 15:21:55,296 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-16 15:21:55,297 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-16 15:21:55,297 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-16 15:21:55,300 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-16 15:21:55,301 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:21:55" (1/1) ...
[2025-03-16 15:21:55,302 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14614e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:55, skipping insertion in model container
[2025-03-16 15:21:55,302 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:21:55" (1/1) ...
[2025-03-16 15:21:55,364 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-16 15:21:55,496 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label01.c[2998,3011]
[2025-03-16 15:21:55,855 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 15:21:55,863 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-16 15:21:55,874 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label01.c[2998,3011]
[2025-03-16 15:21:56,043 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 15:21:56,063 INFO  L204         MainTranslator]: Completed translation
[2025-03-16 15:21:56,064 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56 WrapperNode
[2025-03-16 15:21:56,064 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-16 15:21:56,065 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-16 15:21:56,065 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-16 15:21:56,065 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-16 15:21:56,070 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,101 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,249 INFO  L138                Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4132
[2025-03-16 15:21:56,249 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-16 15:21:56,249 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-16 15:21:56,249 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-16 15:21:56,249 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-16 15:21:56,256 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,257 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,278 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,374 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].
[2025-03-16 15:21:56,374 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,374 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,424 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,434 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,447 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,455 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,473 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-16 15:21:56,474 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-16 15:21:56,474 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-16 15:21:56,475 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-16 15:21:56,475 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (1/1) ...
[2025-03-16 15:21:56,479 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 15:21:56,488 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 15:21:56,502 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-03-16 15:21:56,527 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-03-16 15:21:56,545 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-16 15:21:56,545 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-16 15:21:56,545 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-16 15:21:56,545 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-16 15:21:56,598 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-16 15:21:56,600 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-16 15:21:59,166 INFO  L1322  $ProcedureCfgBuilder]: dead code at ProgramPoint L1647: havoc calculate_output_#t~ret8#1;
[2025-03-16 15:21:59,166 INFO  L1322  $ProcedureCfgBuilder]: dead code at ProgramPoint L3060: havoc calculate_output2_#t~ret9#1;
[2025-03-16 15:21:59,259 INFO  L?                        ?]: Removed 639 outVars from TransFormulas that were not future-live.
[2025-03-16 15:21:59,259 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-16 15:21:59,278 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-16 15:21:59,278 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-16 15:21:59,278 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:21:59 BoogieIcfgContainer
[2025-03-16 15:21:59,278 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-16 15:21:59,280 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-16 15:21:59,280 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-16 15:21:59,284 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-16 15:21:59,284 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 03:21:55" (1/3) ...
[2025-03-16 15:21:59,284 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9055a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:21:59, skipping insertion in model container
[2025-03-16 15:21:59,284 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:21:56" (2/3) ...
[2025-03-16 15:21:59,285 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9055a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:21:59, skipping insertion in model container
[2025-03-16 15:21:59,285 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:21:59" (3/3) ...
[2025-03-16 15:21:59,285 INFO  L128   eAbstractionObserver]: Analyzing ICFG Problem18_label01.c
[2025-03-16 15:21:59,297 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-16 15:21:59,298 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG Problem18_label01.c that has 1 procedures, 696 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-16 15:21:59,355 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-16 15:21:59,362 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;@4aca2bbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-16 15:21:59,362 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-16 15:21:59,367 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 696 states, 694 states have (on average 1.9913544668587897) internal successors, (1382), 695 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:21:59,372 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2025-03-16 15:21:59,372 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:21:59,373 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]
[2025-03-16 15:21:59,373 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:21:59,376 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:21:59,377 INFO  L85        PathProgramCache]: Analyzing trace with hash 1504747277, now seen corresponding path program 1 times
[2025-03-16 15:21:59,382 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:21:59,383 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247414371]
[2025-03-16 15:21:59,383 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:21:59,383 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:21:59,429 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes.
[2025-03-16 15:21:59,440 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements.
[2025-03-16 15:21:59,440 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:21:59,441 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:21:59,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 15:21:59,473 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:21:59,473 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247414371]
[2025-03-16 15:21:59,474 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247414371] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:21:59,474 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:21:59,474 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-03-16 15:21:59,475 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679300037]
[2025-03-16 15:21:59,475 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:21:59,479 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-03-16 15:21:59,479 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:21:59,493 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-03-16 15:21:59,493 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-16 15:21:59,496 INFO  L87              Difference]: Start difference. First operand  has 696 states, 694 states have (on average 1.9913544668587897) internal successors, (1382), 695 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:21:59,561 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:21:59,562 INFO  L93              Difference]: Finished difference Result 1391 states and 2763 transitions.
[2025-03-16 15:21:59,562 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-03-16 15:21:59,563 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25
[2025-03-16 15:21:59,563 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:21:59,576 INFO  L225             Difference]: With dead ends: 1391
[2025-03-16 15:21:59,579 INFO  L226             Difference]: Without dead ends: 693
[2025-03-16 15:21:59,586 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-16 15:21:59,590 INFO  L435           NwaCegarLoop]: 1320 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-03-16 15:21:59,591 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-03-16 15:21:59,604 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 693 states.
[2025-03-16 15:21:59,643 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693.
[2025-03-16 15:21:59,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 693 states, 692 states have (on average 1.903179190751445) internal successors, (1317), 692 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:21:59,654 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions.
[2025-03-16 15:21:59,655 INFO  L78                 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 25
[2025-03-16 15:21:59,655 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:21:59,655 INFO  L471      AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions.
[2025-03-16 15:21:59,657 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:21:59,658 INFO  L276                IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions.
[2025-03-16 15:21:59,658 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2025-03-16 15:21:59,658 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:21:59,658 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]
[2025-03-16 15:21:59,659 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-16 15:21:59,659 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:21:59,659 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:21:59,659 INFO  L85        PathProgramCache]: Analyzing trace with hash -1578755253, now seen corresponding path program 1 times
[2025-03-16 15:21:59,660 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:21:59,660 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620872562]
[2025-03-16 15:21:59,660 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:21:59,660 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:21:59,666 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes.
[2025-03-16 15:21:59,683 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements.
[2025-03-16 15:21:59,688 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:21:59,688 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:21:59,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 15:21:59,784 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:21:59,785 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620872562]
[2025-03-16 15:21:59,785 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620872562] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:21:59,785 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:21:59,785 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-03-16 15:21:59,785 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617437468]
[2025-03-16 15:21:59,785 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:21:59,786 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:21:59,786 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:21:59,786 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:21:59,787 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:21:59,787 INFO  L87              Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand  has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:02,092 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:02,092 INFO  L93              Difference]: Finished difference Result 2075 states and 3948 transitions.
[2025-03-16 15:22:02,092 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:02,093 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25
[2025-03-16 15:22:02,093 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:02,101 INFO  L225             Difference]: With dead ends: 2075
[2025-03-16 15:22:02,101 INFO  L226             Difference]: Without dead ends: 1383
[2025-03-16 15:22:02,102 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:02,103 INFO  L435           NwaCegarLoop]: 243 mSDtfsCounter, 694 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 907 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:02,103 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 249 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [907 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2025-03-16 15:22:02,106 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1383 states.
[2025-03-16 15:22:02,134 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383.
[2025-03-16 15:22:02,136 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1383 states, 1382 states have (on average 1.7344428364688858) internal successors, (2397), 1382 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:02,140 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2397 transitions.
[2025-03-16 15:22:02,140 INFO  L78                 Accepts]: Start accepts. Automaton has 1383 states and 2397 transitions. Word has length 25
[2025-03-16 15:22:02,140 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:02,140 INFO  L471      AbstractCegarLoop]: Abstraction has 1383 states and 2397 transitions.
[2025-03-16 15:22:02,140 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:02,140 INFO  L276                IsEmpty]: Start isEmpty. Operand 1383 states and 2397 transitions.
[2025-03-16 15:22:02,142 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2025-03-16 15:22:02,142 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:02,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 15:22:02,142 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-16 15:22:02,142 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:02,142 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:02,143 INFO  L85        PathProgramCache]: Analyzing trace with hash 216884468, now seen corresponding path program 1 times
[2025-03-16 15:22:02,143 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:02,143 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605295184]
[2025-03-16 15:22:02,143 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:02,143 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:02,158 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes.
[2025-03-16 15:22:02,178 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements.
[2025-03-16 15:22:02,178 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:02,178 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:02,316 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 15:22:02,317 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:02,317 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605295184]
[2025-03-16 15:22:02,317 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605295184] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:02,317 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:02,317 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-03-16 15:22:02,317 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657377205]
[2025-03-16 15:22:02,317 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:02,318 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:02,318 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:02,318 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:02,318 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:02,318 INFO  L87              Difference]: Start difference. First operand 1383 states and 2397 transitions. Second operand  has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:04,421 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:04,422 INFO  L93              Difference]: Finished difference Result 4145 states and 7188 transitions.
[2025-03-16 15:22:04,422 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:04,423 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 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 94
[2025-03-16 15:22:04,423 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:04,431 INFO  L225             Difference]: With dead ends: 4145
[2025-03-16 15:22:04,431 INFO  L226             Difference]: Without dead ends: 2763
[2025-03-16 15:22:04,433 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:04,434 INFO  L435           NwaCegarLoop]: 567 mSDtfsCounter, 676 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:04,434 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 572 Invalid, 2628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2025-03-16 15:22:04,436 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2763 states.
[2025-03-16 15:22:04,466 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763.
[2025-03-16 15:22:04,469 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2763 states, 2762 states have (on average 1.4308472121650977) internal successors, (3952), 2762 states have internal predecessors, (3952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:04,472 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3952 transitions.
[2025-03-16 15:22:04,473 INFO  L78                 Accepts]: Start accepts. Automaton has 2763 states and 3952 transitions. Word has length 94
[2025-03-16 15:22:04,473 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:04,473 INFO  L471      AbstractCegarLoop]: Abstraction has 2763 states and 3952 transitions.
[2025-03-16 15:22:04,473 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:04,473 INFO  L276                IsEmpty]: Start isEmpty. Operand 2763 states and 3952 transitions.
[2025-03-16 15:22:04,475 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2025-03-16 15:22:04,475 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:04,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 15:22:04,475 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-16 15:22:04,475 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:04,476 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:04,476 INFO  L85        PathProgramCache]: Analyzing trace with hash -1483516980, now seen corresponding path program 1 times
[2025-03-16 15:22:04,476 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:04,476 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661055307]
[2025-03-16 15:22:04,476 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:04,476 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:04,487 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes.
[2025-03-16 15:22:04,498 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements.
[2025-03-16 15:22:04,501 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:04,501 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:04,622 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 15:22:04,622 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:04,622 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661055307]
[2025-03-16 15:22:04,622 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661055307] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:04,623 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:04,623 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-03-16 15:22:04,623 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928287538]
[2025-03-16 15:22:04,623 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:04,623 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:04,623 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:04,623 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:04,623 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:04,623 INFO  L87              Difference]: Start difference. First operand 2763 states and 3952 transitions. Second operand  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:06,597 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:06,597 INFO  L93              Difference]: Finished difference Result 8287 states and 11854 transitions.
[2025-03-16 15:22:06,597 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:06,597 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110
[2025-03-16 15:22:06,598 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:06,611 INFO  L225             Difference]: With dead ends: 8287
[2025-03-16 15:22:06,611 INFO  L226             Difference]: Without dead ends: 5525
[2025-03-16 15:22:06,614 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:06,615 INFO  L435           NwaCegarLoop]: 427 mSDtfsCounter, 691 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 672 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 672 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:06,615 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 433 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [672 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2025-03-16 15:22:06,619 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5525 states.
[2025-03-16 15:22:06,674 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5525 to 5523.
[2025-03-16 15:22:06,681 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5523 states, 5522 states have (on average 1.282144150670047) internal successors, (7080), 5522 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:06,688 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 7080 transitions.
[2025-03-16 15:22:06,688 INFO  L78                 Accepts]: Start accepts. Automaton has 5523 states and 7080 transitions. Word has length 110
[2025-03-16 15:22:06,688 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:06,688 INFO  L471      AbstractCegarLoop]: Abstraction has 5523 states and 7080 transitions.
[2025-03-16 15:22:06,688 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:06,688 INFO  L276                IsEmpty]: Start isEmpty. Operand 5523 states and 7080 transitions.
[2025-03-16 15:22:06,691 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2025-03-16 15:22:06,691 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:06,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 15:22:06,691 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-16 15:22:06,691 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:06,692 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:06,692 INFO  L85        PathProgramCache]: Analyzing trace with hash -752982501, now seen corresponding path program 1 times
[2025-03-16 15:22:06,692 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:06,692 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322121745]
[2025-03-16 15:22:06,692 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:06,692 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:06,711 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes.
[2025-03-16 15:22:06,724 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements.
[2025-03-16 15:22:06,724 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:06,724 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:07,067 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 15:22:07,067 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:07,067 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322121745]
[2025-03-16 15:22:07,067 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322121745] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:07,067 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:07,067 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:22:07,067 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071551210]
[2025-03-16 15:22:07,067 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:07,067 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 15:22:07,067 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:07,068 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 15:22:07,068 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 15:22:07,068 INFO  L87              Difference]: Start difference. First operand 5523 states and 7080 transitions. Second operand  has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:09,669 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:09,669 INFO  L93              Difference]: Finished difference Result 15187 states and 18711 transitions.
[2025-03-16 15:22:09,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 15:22:09,669 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 143
[2025-03-16 15:22:09,670 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:09,687 INFO  L225             Difference]: With dead ends: 15187
[2025-03-16 15:22:09,687 INFO  L226             Difference]: Without dead ends: 9665
[2025-03-16 15:22:09,691 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-16 15:22:09,691 INFO  L435           NwaCegarLoop]: 630 mSDtfsCounter, 1874 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 4380 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 4486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:09,692 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1874 Valid, 648 Invalid, 4486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4380 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2025-03-16 15:22:09,697 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9665 states.
[2025-03-16 15:22:09,772 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9665 to 8973.
[2025-03-16 15:22:09,783 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8973 states, 8972 states have (on average 1.2006241640659832) internal successors, (10772), 8972 states have internal predecessors, (10772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:09,794 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8973 states to 8973 states and 10772 transitions.
[2025-03-16 15:22:09,795 INFO  L78                 Accepts]: Start accepts. Automaton has 8973 states and 10772 transitions. Word has length 143
[2025-03-16 15:22:09,796 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:09,796 INFO  L471      AbstractCegarLoop]: Abstraction has 8973 states and 10772 transitions.
[2025-03-16 15:22:09,796 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:09,796 INFO  L276                IsEmpty]: Start isEmpty. Operand 8973 states and 10772 transitions.
[2025-03-16 15:22:09,799 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2025-03-16 15:22:09,799 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:09,799 INFO  L218           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:09,799 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-16 15:22:09,800 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:09,800 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:09,800 INFO  L85        PathProgramCache]: Analyzing trace with hash 84958283, now seen corresponding path program 1 times
[2025-03-16 15:22:09,800 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:09,801 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896452462]
[2025-03-16 15:22:09,801 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:09,801 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:09,826 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 325 statements into 1 equivalence classes.
[2025-03-16 15:22:09,847 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 325 of 325 statements.
[2025-03-16 15:22:09,848 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:09,848 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:10,236 INFO  L134       CoverageAnalysis]: Checked inductivity of 164 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 15:22:10,236 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:10,236 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896452462]
[2025-03-16 15:22:10,236 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896452462] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:10,236 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:10,236 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:22:10,236 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377553613]
[2025-03-16 15:22:10,236 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:10,237 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 15:22:10,237 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:10,237 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 15:22:10,237 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-03-16 15:22:10,237 INFO  L87              Difference]: Start difference. First operand 8973 states and 10772 transitions. Second operand  has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:11,985 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:11,985 INFO  L93              Difference]: Finished difference Result 20760 states and 24425 transitions.
[2025-03-16 15:22:11,986 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 15:22:11,986 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 325
[2025-03-16 15:22:11,986 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:12,010 INFO  L225             Difference]: With dead ends: 20760
[2025-03-16 15:22:12,011 INFO  L226             Difference]: Without dead ends: 11735
[2025-03-16 15:22:12,019 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-03-16 15:22:12,019 INFO  L435           NwaCegarLoop]: 624 mSDtfsCounter, 531 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2592 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 2973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 2592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:12,019 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 636 Invalid, 2973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 2592 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2025-03-16 15:22:12,027 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11735 states.
[2025-03-16 15:22:12,119 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11735 to 11733.
[2025-03-16 15:22:12,134 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11733 states, 11732 states have (on average 1.1211217183770883) internal successors, (13153), 11732 states have internal predecessors, (13153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:12,146 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11733 states to 11733 states and 13153 transitions.
[2025-03-16 15:22:12,147 INFO  L78                 Accepts]: Start accepts. Automaton has 11733 states and 13153 transitions. Word has length 325
[2025-03-16 15:22:12,147 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:12,147 INFO  L471      AbstractCegarLoop]: Abstraction has 11733 states and 13153 transitions.
[2025-03-16 15:22:12,151 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:12,152 INFO  L276                IsEmpty]: Start isEmpty. Operand 11733 states and 13153 transitions.
[2025-03-16 15:22:12,187 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 840
[2025-03-16 15:22:12,188 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:12,188 INFO  L218           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:12,188 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-03-16 15:22:12,188 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:12,189 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:12,189 INFO  L85        PathProgramCache]: Analyzing trace with hash -1755531709, now seen corresponding path program 1 times
[2025-03-16 15:22:12,189 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:12,189 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431197805]
[2025-03-16 15:22:12,190 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:12,190 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:12,240 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 839 statements into 1 equivalence classes.
[2025-03-16 15:22:12,283 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 839 of 839 statements.
[2025-03-16 15:22:12,286 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:12,286 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:13,031 INFO  L134       CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked.
[2025-03-16 15:22:13,031 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:13,031 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431197805]
[2025-03-16 15:22:13,031 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431197805] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 15:22:13,032 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235768572]
[2025-03-16 15:22:13,032 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:13,032 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 15:22:13,032 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 15:22:13,035 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-16 15:22:13,036 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-16 15:22:13,117 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 839 statements into 1 equivalence classes.
[2025-03-16 15:22:13,227 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 839 of 839 statements.
[2025-03-16 15:22:13,227 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:13,228 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:13,231 INFO  L256         TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-16 15:22:13,250 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 15:22:14,050 INFO  L134       CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2025-03-16 15:22:14,051 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-16 15:22:14,051 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [235768572] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:14,052 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-16 15:22:14,052 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2025-03-16 15:22:14,052 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631872879]
[2025-03-16 15:22:14,052 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:14,053 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:14,053 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:14,053 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:14,054 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-16 15:22:14,054 INFO  L87              Difference]: Start difference. First operand 11733 states and 13153 transitions. Second operand  has 3 states, 3 states have (on average 173.0) internal successors, (519), 2 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:15,545 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:15,546 INFO  L93              Difference]: Finished difference Result 29675 states and 33818 transitions.
[2025-03-16 15:22:15,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:15,550 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 173.0) internal successors, (519), 2 states have internal predecessors, (519), 0 states have call successors, (0), 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 839
[2025-03-16 15:22:15,551 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:15,578 INFO  L225             Difference]: With dead ends: 29675
[2025-03-16 15:22:15,578 INFO  L226             Difference]: Without dead ends: 17943
[2025-03-16 15:22:15,588 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 838 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-16 15:22:15,589 INFO  L435           NwaCegarLoop]: 383 mSDtfsCounter, 181 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 2367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:15,590 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 389 Invalid, 2367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-03-16 15:22:15,602 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17943 states.
[2025-03-16 15:22:15,712 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17943 to 16563.
[2025-03-16 15:22:15,729 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16563 states, 16562 states have (on average 1.1191281246226301) internal successors, (18535), 16562 states have internal predecessors, (18535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:15,743 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16563 states to 16563 states and 18535 transitions.
[2025-03-16 15:22:15,744 INFO  L78                 Accepts]: Start accepts. Automaton has 16563 states and 18535 transitions. Word has length 839
[2025-03-16 15:22:15,744 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:15,744 INFO  L471      AbstractCegarLoop]: Abstraction has 16563 states and 18535 transitions.
[2025-03-16 15:22:15,745 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 173.0) internal successors, (519), 2 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:15,745 INFO  L276                IsEmpty]: Start isEmpty. Operand 16563 states and 18535 transitions.
[2025-03-16 15:22:15,761 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 925
[2025-03-16 15:22:15,761 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:15,762 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:15,769 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-03-16 15:22:15,967 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 15:22:15,967 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:15,967 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:15,967 INFO  L85        PathProgramCache]: Analyzing trace with hash -30833708, now seen corresponding path program 1 times
[2025-03-16 15:22:15,968 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:15,968 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004284872]
[2025-03-16 15:22:15,968 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:15,968 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:16,016 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 924 statements into 1 equivalence classes.
[2025-03-16 15:22:16,083 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 924 of 924 statements.
[2025-03-16 15:22:16,083 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:16,083 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:16,679 INFO  L134       CoverageAnalysis]: Checked inductivity of 538 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked.
[2025-03-16 15:22:16,679 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:16,679 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004284872]
[2025-03-16 15:22:16,679 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004284872] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:16,679 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:16,679 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-03-16 15:22:16,679 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596453749]
[2025-03-16 15:22:16,679 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:16,680 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:16,680 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:16,680 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:16,680 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:16,681 INFO  L87              Difference]: Start difference. First operand 16563 states and 18535 transitions. Second operand  has 3 states, 3 states have (on average 181.0) internal successors, (543), 2 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:18,263 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:18,264 INFO  L93              Difference]: Finished difference Result 37955 states and 42427 transitions.
[2025-03-16 15:22:18,264 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:18,264 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 181.0) internal successors, (543), 2 states have internal predecessors, (543), 0 states have call successors, (0), 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 924
[2025-03-16 15:22:18,265 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:18,289 INFO  L225             Difference]: With dead ends: 37955
[2025-03-16 15:22:18,289 INFO  L226             Difference]: Without dead ends: 21393
[2025-03-16 15:22:18,303 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:18,303 INFO  L435           NwaCegarLoop]: 71 mSDtfsCounter, 249 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 2308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:18,303 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 76 Invalid, 2308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-03-16 15:22:18,318 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21393 states.
[2025-03-16 15:22:18,452 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21393 to 21393.
[2025-03-16 15:22:18,470 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21393 states, 21392 states have (on average 1.100224382946896) internal successors, (23536), 21392 states have internal predecessors, (23536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:18,487 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21393 states to 21393 states and 23536 transitions.
[2025-03-16 15:22:18,488 INFO  L78                 Accepts]: Start accepts. Automaton has 21393 states and 23536 transitions. Word has length 924
[2025-03-16 15:22:18,490 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:18,490 INFO  L471      AbstractCegarLoop]: Abstraction has 21393 states and 23536 transitions.
[2025-03-16 15:22:18,490 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 181.0) internal successors, (543), 2 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:18,490 INFO  L276                IsEmpty]: Start isEmpty. Operand 21393 states and 23536 transitions.
[2025-03-16 15:22:18,495 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 958
[2025-03-16 15:22:18,495 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:18,496 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:18,496 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-03-16 15:22:18,497 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:18,497 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:18,497 INFO  L85        PathProgramCache]: Analyzing trace with hash 84694803, now seen corresponding path program 1 times
[2025-03-16 15:22:18,497 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:18,497 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794227084]
[2025-03-16 15:22:18,498 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:18,498 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:18,544 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 957 statements into 1 equivalence classes.
[2025-03-16 15:22:18,576 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 957 of 957 statements.
[2025-03-16 15:22:18,576 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:18,576 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:19,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 604 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked.
[2025-03-16 15:22:19,274 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:19,274 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794227084]
[2025-03-16 15:22:19,274 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794227084] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:19,274 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:19,274 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:22:19,274 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542025717]
[2025-03-16 15:22:19,274 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:19,275 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:19,275 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:19,275 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:19,276 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:19,276 INFO  L87              Difference]: Start difference. First operand 21393 states and 23536 transitions. Second operand  has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:20,784 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:20,785 INFO  L93              Difference]: Finished difference Result 51755 states and 57379 transitions.
[2025-03-16 15:22:20,785 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:20,785 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 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 957
[2025-03-16 15:22:20,786 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:20,825 INFO  L225             Difference]: With dead ends: 51755
[2025-03-16 15:22:20,825 INFO  L226             Difference]: Without dead ends: 30363
[2025-03-16 15:22:20,842 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:20,843 INFO  L435           NwaCegarLoop]: 972 mSDtfsCounter, 577 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:20,843 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 977 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-03-16 15:22:20,862 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30363 states.
[2025-03-16 15:22:21,042 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30363 to 30363.
[2025-03-16 15:22:21,164 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30363 states, 30362 states have (on average 1.088169422304196) internal successors, (33039), 30362 states have internal predecessors, (33039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:21,189 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30363 states to 30363 states and 33039 transitions.
[2025-03-16 15:22:21,190 INFO  L78                 Accepts]: Start accepts. Automaton has 30363 states and 33039 transitions. Word has length 957
[2025-03-16 15:22:21,191 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:21,191 INFO  L471      AbstractCegarLoop]: Abstraction has 30363 states and 33039 transitions.
[2025-03-16 15:22:21,191 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:21,191 INFO  L276                IsEmpty]: Start isEmpty. Operand 30363 states and 33039 transitions.
[2025-03-16 15:22:21,196 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 965
[2025-03-16 15:22:21,197 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:21,197 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:21,197 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-03-16 15:22:21,197 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:21,198 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:21,198 INFO  L85        PathProgramCache]: Analyzing trace with hash -601709968, now seen corresponding path program 1 times
[2025-03-16 15:22:21,198 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:21,198 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563314754]
[2025-03-16 15:22:21,198 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:21,198 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:21,249 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 964 statements into 1 equivalence classes.
[2025-03-16 15:22:21,277 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 964 of 964 statements.
[2025-03-16 15:22:21,277 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:21,277 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:22,335 INFO  L134       CoverageAnalysis]: Checked inductivity of 611 backedges. 321 proven. 290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 15:22:22,336 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:22,336 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563314754]
[2025-03-16 15:22:22,336 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563314754] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 15:22:22,336 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443589681]
[2025-03-16 15:22:22,336 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:22,336 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 15:22:22,337 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 15:22:22,338 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-16 15:22:22,341 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-03-16 15:22:22,411 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 964 statements into 1 equivalence classes.
[2025-03-16 15:22:22,541 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 964 of 964 statements.
[2025-03-16 15:22:22,541 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:22,541 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:22,544 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-16 15:22:22,553 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 15:22:22,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 611 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked.
[2025-03-16 15:22:22,610 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-16 15:22:22,610 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [443589681] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:22,611 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-16 15:22:22,611 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8
[2025-03-16 15:22:22,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202369208]
[2025-03-16 15:22:22,611 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:22,611 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:22,612 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:22,612 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:22,612 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2025-03-16 15:22:22,612 INFO  L87              Difference]: Start difference. First operand 30363 states and 33039 transitions. Second operand  has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:23,955 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:23,955 INFO  L93              Difference]: Finished difference Result 60725 states and 66077 transitions.
[2025-03-16 15:22:23,955 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:23,955 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 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 964
[2025-03-16 15:22:23,956 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:23,991 INFO  L225             Difference]: With dead ends: 60725
[2025-03-16 15:22:23,991 INFO  L226             Difference]: Without dead ends: 30363
[2025-03-16 15:22:24,014 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 964 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2025-03-16 15:22:24,015 INFO  L435           NwaCegarLoop]: 772 mSDtfsCounter, 771 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:24,015 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 778 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-16 15:22:24,040 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30363 states.
[2025-03-16 15:22:24,219 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30363 to 30363.
[2025-03-16 15:22:24,242 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30363 states, 30362 states have (on average 1.0728212897701073) internal successors, (32573), 30362 states have internal predecessors, (32573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:24,269 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30363 states to 30363 states and 32573 transitions.
[2025-03-16 15:22:24,270 INFO  L78                 Accepts]: Start accepts. Automaton has 30363 states and 32573 transitions. Word has length 964
[2025-03-16 15:22:24,270 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:24,270 INFO  L471      AbstractCegarLoop]: Abstraction has 30363 states and 32573 transitions.
[2025-03-16 15:22:24,270 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:24,270 INFO  L276                IsEmpty]: Start isEmpty. Operand 30363 states and 32573 transitions.
[2025-03-16 15:22:24,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1095
[2025-03-16 15:22:24,278 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:24,279 INFO  L218           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:24,285 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2025-03-16 15:22:24,479 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2025-03-16 15:22:24,479 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:24,480 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:24,480 INFO  L85        PathProgramCache]: Analyzing trace with hash 1044618201, now seen corresponding path program 1 times
[2025-03-16 15:22:24,480 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:24,480 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92208455]
[2025-03-16 15:22:24,480 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:24,481 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:24,526 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1094 statements into 1 equivalence classes.
[2025-03-16 15:22:24,555 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1094 of 1094 statements.
[2025-03-16 15:22:24,555 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:24,555 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:25,667 INFO  L134       CoverageAnalysis]: Checked inductivity of 1177 backedges. 289 proven. 803 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked.
[2025-03-16 15:22:25,668 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:25,668 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92208455]
[2025-03-16 15:22:25,668 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92208455] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 15:22:25,668 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706286254]
[2025-03-16 15:22:25,668 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:25,669 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 15:22:25,669 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 15:22:25,670 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-16 15:22:25,672 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-03-16 15:22:25,746 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1094 statements into 1 equivalence classes.
[2025-03-16 15:22:25,883 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1094 of 1094 statements.
[2025-03-16 15:22:25,883 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:25,883 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:25,887 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1283 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-16 15:22:25,901 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 15:22:25,999 INFO  L134       CoverageAnalysis]: Checked inductivity of 1177 backedges. 454 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked.
[2025-03-16 15:22:25,999 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-16 15:22:25,999 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706286254] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:25,999 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-16 15:22:26,000 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10
[2025-03-16 15:22:26,000 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936246798]
[2025-03-16 15:22:26,000 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:26,000 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:26,001 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:26,001 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:26,001 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2025-03-16 15:22:26,002 INFO  L87              Difference]: Start difference. First operand 30363 states and 32573 transitions. Second operand  has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:27,561 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:27,561 INFO  L93              Difference]: Finished difference Result 67625 states and 73336 transitions.
[2025-03-16 15:22:27,562 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:27,562 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 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 1094
[2025-03-16 15:22:27,563 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:27,619 INFO  L225             Difference]: With dead ends: 67625
[2025-03-16 15:22:27,619 INFO  L226             Difference]: Without dead ends: 37263
[2025-03-16 15:22:27,643 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1094 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2025-03-16 15:22:27,643 INFO  L435           NwaCegarLoop]: 159 mSDtfsCounter, 698 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:27,643 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 164 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-03-16 15:22:27,671 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37263 states.
[2025-03-16 15:22:28,011 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37263 to 37263.
[2025-03-16 15:22:28,035 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 37263 states, 37262 states have (on average 1.0753851108367773) internal successors, (40071), 37262 states have internal predecessors, (40071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:28,080 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37263 states to 37263 states and 40071 transitions.
[2025-03-16 15:22:28,080 INFO  L78                 Accepts]: Start accepts. Automaton has 37263 states and 40071 transitions. Word has length 1094
[2025-03-16 15:22:28,081 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:28,081 INFO  L471      AbstractCegarLoop]: Abstraction has 37263 states and 40071 transitions.
[2025-03-16 15:22:28,081 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:28,081 INFO  L276                IsEmpty]: Start isEmpty. Operand 37263 states and 40071 transitions.
[2025-03-16 15:22:28,096 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1101
[2025-03-16 15:22:28,096 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:28,097 INFO  L218           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:28,104 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2025-03-16 15:22:28,301 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 15:22:28,301 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:28,302 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:28,302 INFO  L85        PathProgramCache]: Analyzing trace with hash 205183882, now seen corresponding path program 1 times
[2025-03-16 15:22:28,302 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:28,302 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528495375]
[2025-03-16 15:22:28,302 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:28,302 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:28,381 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1100 statements into 1 equivalence classes.
[2025-03-16 15:22:28,430 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1100 of 1100 statements.
[2025-03-16 15:22:28,430 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:28,430 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:28,838 INFO  L134       CoverageAnalysis]: Checked inductivity of 1192 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked.
[2025-03-16 15:22:28,840 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:28,840 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528495375]
[2025-03-16 15:22:28,840 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528495375] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:28,840 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:28,841 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:22:28,841 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727846492]
[2025-03-16 15:22:28,841 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:28,841 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:28,841 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:28,842 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:28,842 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:28,842 INFO  L87              Difference]: Start difference. First operand 37263 states and 40071 transitions. Second operand  has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:30,366 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:30,366 INFO  L93              Difference]: Finished difference Result 84185 states and 91368 transitions.
[2025-03-16 15:22:30,366 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:30,367 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 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 1100
[2025-03-16 15:22:30,367 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:30,411 INFO  L225             Difference]: With dead ends: 84185
[2025-03-16 15:22:30,411 INFO  L226             Difference]: Without dead ends: 44163
[2025-03-16 15:22:30,432 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:30,432 INFO  L435           NwaCegarLoop]: 1113 mSDtfsCounter, 603 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:30,432 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1119 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-03-16 15:22:30,459 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44163 states.
[2025-03-16 15:22:30,701 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44163 to 44163.
[2025-03-16 15:22:30,728 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44163 states, 44162 states have (on average 1.070105520583307) internal successors, (47258), 44162 states have internal predecessors, (47258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:30,765 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44163 states to 44163 states and 47258 transitions.
[2025-03-16 15:22:30,766 INFO  L78                 Accepts]: Start accepts. Automaton has 44163 states and 47258 transitions. Word has length 1100
[2025-03-16 15:22:30,767 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:30,767 INFO  L471      AbstractCegarLoop]: Abstraction has 44163 states and 47258 transitions.
[2025-03-16 15:22:30,767 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:30,767 INFO  L276                IsEmpty]: Start isEmpty. Operand 44163 states and 47258 transitions.
[2025-03-16 15:22:30,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1119
[2025-03-16 15:22:30,776 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:30,777 INFO  L218           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:30,777 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2025-03-16 15:22:30,777 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:30,777 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:30,777 INFO  L85        PathProgramCache]: Analyzing trace with hash 1216476445, now seen corresponding path program 1 times
[2025-03-16 15:22:30,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:30,777 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044487270]
[2025-03-16 15:22:30,778 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:30,778 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:30,820 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1118 statements into 1 equivalence classes.
[2025-03-16 15:22:30,846 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1118 of 1118 statements.
[2025-03-16 15:22:30,847 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:30,847 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:31,596 INFO  L134       CoverageAnalysis]: Checked inductivity of 1189 backedges. 625 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked.
[2025-03-16 15:22:31,596 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:31,596 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044487270]
[2025-03-16 15:22:31,596 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044487270] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:31,596 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:31,596 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-16 15:22:31,596 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992826596]
[2025-03-16 15:22:31,596 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:31,597 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-16 15:22:31,597 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:31,597 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-16 15:22:31,599 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-16 15:22:31,599 INFO  L87              Difference]: Start difference. First operand 44163 states and 47258 transitions. Second operand  has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:33,456 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:33,456 INFO  L93              Difference]: Finished difference Result 95320 states and 103005 transitions.
[2025-03-16 15:22:33,456 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 15:22:33,456 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 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 1118
[2025-03-16 15:22:33,457 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:33,508 INFO  L225             Difference]: With dead ends: 95320
[2025-03-16 15:22:33,508 INFO  L226             Difference]: Without dead ends: 51158
[2025-03-16 15:22:33,535 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
[2025-03-16 15:22:33,536 INFO  L435           NwaCegarLoop]: 1046 mSDtfsCounter, 1375 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 930 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 3509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 930 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:33,536 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 1055 Invalid, 3509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [930 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2025-03-16 15:22:33,568 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51158 states.
[2025-03-16 15:22:34,024 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51158 to 45543.
[2025-03-16 15:22:34,045 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 45543 states, 45542 states have (on average 1.0447499011901102) internal successors, (47580), 45542 states have internal predecessors, (47580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:34,083 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45543 states to 45543 states and 47580 transitions.
[2025-03-16 15:22:34,084 INFO  L78                 Accepts]: Start accepts. Automaton has 45543 states and 47580 transitions. Word has length 1118
[2025-03-16 15:22:34,084 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:34,085 INFO  L471      AbstractCegarLoop]: Abstraction has 45543 states and 47580 transitions.
[2025-03-16 15:22:34,085 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:34,085 INFO  L276                IsEmpty]: Start isEmpty. Operand 45543 states and 47580 transitions.
[2025-03-16 15:22:34,098 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1274
[2025-03-16 15:22:34,098 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:34,099 INFO  L218           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:34,099 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2025-03-16 15:22:34,099 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:34,100 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:34,100 INFO  L85        PathProgramCache]: Analyzing trace with hash 1466746849, now seen corresponding path program 1 times
[2025-03-16 15:22:34,100 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:34,100 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682529540]
[2025-03-16 15:22:34,100 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:34,101 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:34,152 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1273 statements into 1 equivalence classes.
[2025-03-16 15:22:34,195 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1273 of 1273 statements.
[2025-03-16 15:22:34,195 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:34,195 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:34,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 1838 backedges. 733 proven. 0 refuted. 0 times theorem prover too weak. 1105 trivial. 0 not checked.
[2025-03-16 15:22:34,448 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:34,448 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682529540]
[2025-03-16 15:22:34,449 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682529540] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:34,449 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:34,449 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:22:34,449 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781715195]
[2025-03-16 15:22:34,449 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:34,449 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:34,449 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:34,450 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:34,450 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:34,450 INFO  L87              Difference]: Start difference. First operand 45543 states and 47580 transitions. Second operand  has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:35,866 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:35,866 INFO  L93              Difference]: Finished difference Result 109025 states and 114433 transitions.
[2025-03-16 15:22:35,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:35,867 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 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 1273
[2025-03-16 15:22:35,867 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:35,933 INFO  L225             Difference]: With dead ends: 109025
[2025-03-16 15:22:35,933 INFO  L226             Difference]: Without dead ends: 64173
[2025-03-16 15:22:35,964 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:35,965 INFO  L435           NwaCegarLoop]: 104 mSDtfsCounter, 574 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 2058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:35,965 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 109 Invalid, 2058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-16 15:22:36,000 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64173 states.
[2025-03-16 15:22:36,414 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64173 to 64173.
[2025-03-16 15:22:36,456 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64173 states, 64172 states have (on average 1.048151841924827) internal successors, (67262), 64172 states have internal predecessors, (67262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:36,509 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64173 states to 64173 states and 67262 transitions.
[2025-03-16 15:22:36,510 INFO  L78                 Accepts]: Start accepts. Automaton has 64173 states and 67262 transitions. Word has length 1273
[2025-03-16 15:22:36,510 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:36,510 INFO  L471      AbstractCegarLoop]: Abstraction has 64173 states and 67262 transitions.
[2025-03-16 15:22:36,510 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:36,511 INFO  L276                IsEmpty]: Start isEmpty. Operand 64173 states and 67262 transitions.
[2025-03-16 15:22:36,524 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1293
[2025-03-16 15:22:36,524 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:36,524 INFO  L218           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:36,524 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2025-03-16 15:22:36,524 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:36,525 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:36,525 INFO  L85        PathProgramCache]: Analyzing trace with hash 193800673, now seen corresponding path program 1 times
[2025-03-16 15:22:36,525 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:36,525 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8192438]
[2025-03-16 15:22:36,525 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:36,525 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:36,573 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1292 statements into 1 equivalence classes.
[2025-03-16 15:22:36,600 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1292 of 1292 statements.
[2025-03-16 15:22:36,601 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:36,601 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:37,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 1926 backedges. 1307 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked.
[2025-03-16 15:22:37,300 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:37,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8192438]
[2025-03-16 15:22:37,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8192438] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:37,301 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:37,301 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:22:37,301 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113389759]
[2025-03-16 15:22:37,301 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:37,302 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:37,302 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:37,302 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:37,303 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:37,303 INFO  L87              Difference]: Start difference. First operand 64173 states and 67262 transitions. Second operand  has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:38,803 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:38,803 INFO  L93              Difference]: Finished difference Result 139385 states and 146290 transitions.
[2025-03-16 15:22:38,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:38,803 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 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 1292
[2025-03-16 15:22:38,804 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:38,874 INFO  L225             Difference]: With dead ends: 139385
[2025-03-16 15:22:38,874 INFO  L226             Difference]: Without dead ends: 75213
[2025-03-16 15:22:38,903 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:38,904 INFO  L435           NwaCegarLoop]: 961 mSDtfsCounter, 573 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:38,904 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 967 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-03-16 15:22:38,944 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75213 states.
[2025-03-16 15:22:39,529 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75213 to 74523.
[2025-03-16 15:22:39,565 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74523 states, 74522 states have (on average 1.0416252918601219) internal successors, (77624), 74522 states have internal predecessors, (77624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:39,634 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74523 states to 74523 states and 77624 transitions.
[2025-03-16 15:22:39,634 INFO  L78                 Accepts]: Start accepts. Automaton has 74523 states and 77624 transitions. Word has length 1292
[2025-03-16 15:22:39,635 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:39,635 INFO  L471      AbstractCegarLoop]: Abstraction has 74523 states and 77624 transitions.
[2025-03-16 15:22:39,635 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:39,635 INFO  L276                IsEmpty]: Start isEmpty. Operand 74523 states and 77624 transitions.
[2025-03-16 15:22:39,650 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1321
[2025-03-16 15:22:39,650 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:39,650 INFO  L218           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:39,650 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2025-03-16 15:22:39,651 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:39,651 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:39,651 INFO  L85        PathProgramCache]: Analyzing trace with hash 53983908, now seen corresponding path program 1 times
[2025-03-16 15:22:39,651 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:39,651 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741029363]
[2025-03-16 15:22:39,651 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:39,651 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:39,702 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1320 statements into 1 equivalence classes.
[2025-03-16 15:22:39,727 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1320 of 1320 statements.
[2025-03-16 15:22:39,727 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:39,727 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:40,581 INFO  L134       CoverageAnalysis]: Checked inductivity of 2033 backedges. 1332 proven. 0 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked.
[2025-03-16 15:22:40,581 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:40,582 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741029363]
[2025-03-16 15:22:40,582 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741029363] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:40,582 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:40,582 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:22:40,582 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564311268]
[2025-03-16 15:22:40,582 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:40,587 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:40,587 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:40,587 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:40,587 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:40,588 INFO  L87              Difference]: Start difference. First operand 74523 states and 77624 transitions. Second operand  has 3 states, 3 states have (on average 257.6666666666667) internal successors, (773), 3 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:42,084 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:42,084 INFO  L93              Difference]: Finished difference Result 158705 states and 165555 transitions.
[2025-03-16 15:22:42,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:42,085 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 257.6666666666667) internal successors, (773), 3 states have internal predecessors, (773), 0 states have call successors, (0), 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 1320
[2025-03-16 15:22:42,085 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:42,273 INFO  L225             Difference]: With dead ends: 158705
[2025-03-16 15:22:42,273 INFO  L226             Difference]: Without dead ends: 84873
[2025-03-16 15:22:42,306 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:42,308 INFO  L435           NwaCegarLoop]: 260 mSDtfsCounter, 586 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 1887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:42,309 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 266 Invalid, 1887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-16 15:22:42,356 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84873 states.
[2025-03-16 15:22:42,953 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84873 to 84183.
[2025-03-16 15:22:42,999 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 84183 states, 84182 states have (on average 1.040531229954147) internal successors, (87594), 84182 states have internal predecessors, (87594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:43,083 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84183 states to 84183 states and 87594 transitions.
[2025-03-16 15:22:43,084 INFO  L78                 Accepts]: Start accepts. Automaton has 84183 states and 87594 transitions. Word has length 1320
[2025-03-16 15:22:43,085 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:43,085 INFO  L471      AbstractCegarLoop]: Abstraction has 84183 states and 87594 transitions.
[2025-03-16 15:22:43,085 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 257.6666666666667) internal successors, (773), 3 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:43,085 INFO  L276                IsEmpty]: Start isEmpty. Operand 84183 states and 87594 transitions.
[2025-03-16 15:22:43,114 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1370
[2025-03-16 15:22:43,114 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:43,115 INFO  L218           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:43,115 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2025-03-16 15:22:43,115 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:43,116 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:43,116 INFO  L85        PathProgramCache]: Analyzing trace with hash 860999155, now seen corresponding path program 1 times
[2025-03-16 15:22:43,116 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:43,116 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071984019]
[2025-03-16 15:22:43,116 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:43,116 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:43,206 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1369 statements into 1 equivalence classes.
[2025-03-16 15:22:43,249 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1369 of 1369 statements.
[2025-03-16 15:22:43,249 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:43,249 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:44,320 INFO  L134       CoverageAnalysis]: Checked inductivity of 2111 backedges. 1434 proven. 0 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked.
[2025-03-16 15:22:44,321 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:44,321 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071984019]
[2025-03-16 15:22:44,321 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071984019] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:44,321 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:44,321 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:22:44,321 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640943711]
[2025-03-16 15:22:44,321 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:44,322 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 15:22:44,322 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:44,322 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 15:22:44,323 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-03-16 15:22:44,323 INFO  L87              Difference]: Start difference. First operand 84183 states and 87594 transitions. Second operand  has 4 states, 4 states have (on average 207.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:46,255 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:46,256 INFO  L93              Difference]: Finished difference Result 169055 states and 175890 transitions.
[2025-03-16 15:22:46,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 15:22:46,256 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 207.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 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 1369
[2025-03-16 15:22:46,257 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:46,335 INFO  L225             Difference]: With dead ends: 169055
[2025-03-16 15:22:46,335 INFO  L226             Difference]: Without dead ends: 85563
[2025-03-16 15:22:46,380 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-03-16 15:22:46,380 INFO  L435           NwaCegarLoop]: 70 mSDtfsCounter, 983 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2677 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 2974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 2677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:46,380 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 81 Invalid, 2974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 2677 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-03-16 15:22:46,434 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85563 states.
[2025-03-16 15:22:47,043 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85563 to 84183.
[2025-03-16 15:22:47,093 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 84183 states, 84182 states have (on average 1.0403411655698367) internal successors, (87578), 84182 states have internal predecessors, (87578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:47,164 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84183 states to 84183 states and 87578 transitions.
[2025-03-16 15:22:47,165 INFO  L78                 Accepts]: Start accepts. Automaton has 84183 states and 87578 transitions. Word has length 1369
[2025-03-16 15:22:47,165 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:47,165 INFO  L471      AbstractCegarLoop]: Abstraction has 84183 states and 87578 transitions.
[2025-03-16 15:22:47,165 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 207.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:47,165 INFO  L276                IsEmpty]: Start isEmpty. Operand 84183 states and 87578 transitions.
[2025-03-16 15:22:47,183 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1402
[2025-03-16 15:22:47,183 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:47,184 INFO  L218           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:47,184 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2025-03-16 15:22:47,184 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:47,184 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:47,185 INFO  L85        PathProgramCache]: Analyzing trace with hash -1488546270, now seen corresponding path program 1 times
[2025-03-16 15:22:47,185 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:47,185 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604963782]
[2025-03-16 15:22:47,185 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:47,185 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:47,236 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1401 statements into 1 equivalence classes.
[2025-03-16 15:22:47,271 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1401 of 1401 statements.
[2025-03-16 15:22:47,271 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:47,271 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:49,247 INFO  L134       CoverageAnalysis]: Checked inductivity of 2167 backedges. 773 proven. 901 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked.
[2025-03-16 15:22:49,247 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:49,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604963782]
[2025-03-16 15:22:49,247 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604963782] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 15:22:49,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85362077]
[2025-03-16 15:22:49,247 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:49,247 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 15:22:49,247 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 15:22:49,249 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-16 15:22:49,250 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2025-03-16 15:22:49,368 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1401 statements into 1 equivalence classes.
[2025-03-16 15:22:49,505 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1401 of 1401 statements.
[2025-03-16 15:22:49,505 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:49,505 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:49,510 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1611 conjuncts, 3 conjuncts are in the unsatisfiable core
[2025-03-16 15:22:49,519 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 15:22:49,752 INFO  L134       CoverageAnalysis]: Checked inductivity of 2167 backedges. 1129 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked.
[2025-03-16 15:22:49,753 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-16 15:22:49,753 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [85362077] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:49,753 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-16 15:22:49,753 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2025-03-16 15:22:49,753 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928567563]
[2025-03-16 15:22:49,753 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:49,754 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:49,754 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:49,754 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:49,754 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2025-03-16 15:22:49,754 INFO  L87              Difference]: Start difference. First operand 84183 states and 87578 transitions. Second operand  has 3 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:51,057 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:51,057 INFO  L93              Difference]: Finished difference Result 167675 states and 174464 transitions.
[2025-03-16 15:22:51,058 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:51,058 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 0 states have call successors, (0), 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 1401
[2025-03-16 15:22:51,058 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:51,136 INFO  L225             Difference]: With dead ends: 167675
[2025-03-16 15:22:51,136 INFO  L226             Difference]: Without dead ends: 84183
[2025-03-16 15:22:51,186 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 1406 GetRequests, 1401 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2025-03-16 15:22:51,186 INFO  L435           NwaCegarLoop]: 958 mSDtfsCounter, 591 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:51,187 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 963 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2025-03-16 15:22:51,239 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84183 states.
[2025-03-16 15:22:51,722 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84183 to 84183.
[2025-03-16 15:22:51,774 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 84183 states, 84182 states have (on average 1.0401035850894491) internal successors, (87558), 84182 states have internal predecessors, (87558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:51,853 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84183 states to 84183 states and 87558 transitions.
[2025-03-16 15:22:51,854 INFO  L78                 Accepts]: Start accepts. Automaton has 84183 states and 87558 transitions. Word has length 1401
[2025-03-16 15:22:51,854 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:51,854 INFO  L471      AbstractCegarLoop]: Abstraction has 84183 states and 87558 transitions.
[2025-03-16 15:22:51,854 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:51,855 INFO  L276                IsEmpty]: Start isEmpty. Operand 84183 states and 87558 transitions.
[2025-03-16 15:22:51,873 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1437
[2025-03-16 15:22:51,873 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:51,873 INFO  L218           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 15:22:51,880 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2025-03-16 15:22:52,074 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2025-03-16 15:22:52,074 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:52,074 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:52,075 INFO  L85        PathProgramCache]: Analyzing trace with hash 366983995, now seen corresponding path program 1 times
[2025-03-16 15:22:52,075 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:52,075 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071820870]
[2025-03-16 15:22:52,075 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:52,075 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:52,161 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1436 statements into 1 equivalence classes.
[2025-03-16 15:22:52,225 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1436 of 1436 statements.
[2025-03-16 15:22:52,225 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:52,225 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:53,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 2445 backedges. 1569 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked.
[2025-03-16 15:22:53,052 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:53,052 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071820870]
[2025-03-16 15:22:53,053 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071820870] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:53,053 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:53,053 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:22:53,053 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794474935]
[2025-03-16 15:22:53,053 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:53,055 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:53,055 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:53,056 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:53,056 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:53,057 INFO  L87              Difference]: Start difference. First operand 84183 states and 87558 transitions. Second operand  has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:54,736 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:54,736 INFO  L93              Difference]: Finished difference Result 189065 states and 196852 transitions.
[2025-03-16 15:22:54,737 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:54,737 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 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 1436
[2025-03-16 15:22:54,737 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:54,849 INFO  L225             Difference]: With dead ends: 189065
[2025-03-16 15:22:54,849 INFO  L226             Difference]: Without dead ends: 105573
[2025-03-16 15:22:54,904 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:54,904 INFO  L435           NwaCegarLoop]: 245 mSDtfsCounter, 613 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-03-16 15:22:54,904 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 250 Invalid, 1959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-03-16 15:22:54,973 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 105573 states.
[2025-03-16 15:22:55,717 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 105573 to 104883.
[2025-03-16 15:22:55,773 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 104883 states, 104882 states have (on average 1.0382906504452623) internal successors, (108898), 104882 states have internal predecessors, (108898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:56,242 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 104883 states to 104883 states and 108898 transitions.
[2025-03-16 15:22:56,243 INFO  L78                 Accepts]: Start accepts. Automaton has 104883 states and 108898 transitions. Word has length 1436
[2025-03-16 15:22:56,244 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:22:56,244 INFO  L471      AbstractCegarLoop]: Abstraction has 104883 states and 108898 transitions.
[2025-03-16 15:22:56,244 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:56,244 INFO  L276                IsEmpty]: Start isEmpty. Operand 104883 states and 108898 transitions.
[2025-03-16 15:22:56,261 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1502
[2025-03-16 15:22:56,261 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:22:56,262 INFO  L218           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:22:56,262 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2025-03-16 15:22:56,262 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:22:56,263 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:22:56,263 INFO  L85        PathProgramCache]: Analyzing trace with hash 1744525126, now seen corresponding path program 1 times
[2025-03-16 15:22:56,263 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:22:56,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037239434]
[2025-03-16 15:22:56,263 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:22:56,263 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:22:56,317 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1501 statements into 1 equivalence classes.
[2025-03-16 15:22:56,358 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1501 of 1501 statements.
[2025-03-16 15:22:56,358 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:22:56,358 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:22:58,242 INFO  L134       CoverageAnalysis]: Checked inductivity of 2879 backedges. 670 proven. 0 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked.
[2025-03-16 15:22:58,242 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:22:58,242 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037239434]
[2025-03-16 15:22:58,242 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037239434] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:22:58,242 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:22:58,242 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:22:58,242 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081609408]
[2025-03-16 15:22:58,242 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:22:58,243 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:22:58,243 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:22:58,244 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:22:58,244 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:22:58,244 INFO  L87              Difference]: Start difference. First operand 104883 states and 108898 transitions. Second operand  has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:22:59,852 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:22:59,853 INFO  L93              Difference]: Finished difference Result 210455 states and 218491 transitions.
[2025-03-16 15:22:59,853 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:22:59,853 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 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 1501
[2025-03-16 15:22:59,854 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:22:59,975 INFO  L225             Difference]: With dead ends: 210455
[2025-03-16 15:22:59,975 INFO  L226             Difference]: Without dead ends: 104883
[2025-03-16 15:23:00,020 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:23:00,020 INFO  L435           NwaCegarLoop]: 763 mSDtfsCounter, 645 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2025-03-16 15:23:00,020 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 768 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2025-03-16 15:23:00,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 104883 states.
[2025-03-16 15:23:01,003 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 104883 to 103503.
[2025-03-16 15:23:01,058 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 103503 states, 103502 states have (on average 1.0340669745512163) internal successors, (107028), 103502 states have internal predecessors, (107028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:01,158 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 103503 states to 103503 states and 107028 transitions.
[2025-03-16 15:23:01,159 INFO  L78                 Accepts]: Start accepts. Automaton has 103503 states and 107028 transitions. Word has length 1501
[2025-03-16 15:23:01,160 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:23:01,160 INFO  L471      AbstractCegarLoop]: Abstraction has 103503 states and 107028 transitions.
[2025-03-16 15:23:01,160 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:01,160 INFO  L276                IsEmpty]: Start isEmpty. Operand 103503 states and 107028 transitions.
[2025-03-16 15:23:01,179 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1531
[2025-03-16 15:23:01,180 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:23:01,180 INFO  L218           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:23:01,180 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2025-03-16 15:23:01,180 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:23:01,181 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:23:01,181 INFO  L85        PathProgramCache]: Analyzing trace with hash -150669403, now seen corresponding path program 1 times
[2025-03-16 15:23:01,181 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:23:01,182 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823740570]
[2025-03-16 15:23:01,182 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:23:01,182 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:23:01,251 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1530 statements into 1 equivalence classes.
[2025-03-16 15:23:01,291 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1530 of 1530 statements.
[2025-03-16 15:23:01,291 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:23:01,291 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:23:02,009 INFO  L134       CoverageAnalysis]: Checked inductivity of 3026 backedges. 1948 proven. 0 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked.
[2025-03-16 15:23:02,009 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:23:02,009 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823740570]
[2025-03-16 15:23:02,009 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823740570] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:23:02,009 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:23:02,009 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:23:02,009 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546329429]
[2025-03-16 15:23:02,009 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:23:02,010 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:23:02,010 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:23:02,011 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:23:02,011 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:23:02,011 INFO  L87              Difference]: Start difference. First operand 103503 states and 107028 transitions. Second operand  has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:03,386 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:23:03,386 INFO  L93              Difference]: Finished difference Result 207697 states and 214754 transitions.
[2025-03-16 15:23:03,387 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:23:03,387 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 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 1530
[2025-03-16 15:23:03,387 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:23:03,486 INFO  L225             Difference]: With dead ends: 207697
[2025-03-16 15:23:03,487 INFO  L226             Difference]: Without dead ends: 104885
[2025-03-16 15:23:03,538 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:23:03,538 INFO  L435           NwaCegarLoop]: 267 mSDtfsCounter, 517 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2025-03-16 15:23:03,538 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 273 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2025-03-16 15:23:03,601 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 104885 states.
[2025-03-16 15:23:04,350 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 104885 to 102813.
[2025-03-16 15:23:04,419 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102813 states, 102812 states have (on average 1.0342858810255613) internal successors, (106337), 102812 states have internal predecessors, (106337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:04,508 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102813 states to 102813 states and 106337 transitions.
[2025-03-16 15:23:04,509 INFO  L78                 Accepts]: Start accepts. Automaton has 102813 states and 106337 transitions. Word has length 1530
[2025-03-16 15:23:04,509 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:23:04,509 INFO  L471      AbstractCegarLoop]: Abstraction has 102813 states and 106337 transitions.
[2025-03-16 15:23:04,510 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:04,510 INFO  L276                IsEmpty]: Start isEmpty. Operand 102813 states and 106337 transitions.
[2025-03-16 15:23:04,527 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1552
[2025-03-16 15:23:04,527 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:23:04,527 INFO  L218           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 15:23:04,527 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2025-03-16 15:23:04,527 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:23:04,528 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:23:04,528 INFO  L85        PathProgramCache]: Analyzing trace with hash -840803349, now seen corresponding path program 1 times
[2025-03-16 15:23:04,528 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:23:04,528 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414470211]
[2025-03-16 15:23:04,528 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:23:04,528 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:23:04,584 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1551 statements into 1 equivalence classes.
[2025-03-16 15:23:04,622 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1551 of 1551 statements.
[2025-03-16 15:23:04,623 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:23:04,623 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:23:05,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 2948 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 2781 trivial. 0 not checked.
[2025-03-16 15:23:05,484 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:23:05,484 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414470211]
[2025-03-16 15:23:05,484 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414470211] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:23:05,484 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:23:05,484 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:23:05,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183339638]
[2025-03-16 15:23:05,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:23:05,485 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:23:05,485 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:23:05,486 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:23:05,486 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:23:05,486 INFO  L87              Difference]: Start difference. First operand 102813 states and 106337 transitions. Second operand  has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:07,157 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:23:07,159 INFO  L93              Difference]: Finished difference Result 205625 states and 212673 transitions.
[2025-03-16 15:23:07,159 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:23:07,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 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 1551
[2025-03-16 15:23:07,160 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:23:07,278 INFO  L225             Difference]: With dead ends: 205625
[2025-03-16 15:23:07,278 INFO  L226             Difference]: Without dead ends: 102123
[2025-03-16 15:23:07,341 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:23:07,343 INFO  L435           NwaCegarLoop]: 926 mSDtfsCounter, 671 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-03-16 15:23:07,343 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 932 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-03-16 15:23:07,418 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 102123 states.
[2025-03-16 15:23:08,322 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 102123 to 100053.
[2025-03-16 15:23:08,393 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 100053 states, 100052 states have (on average 1.028425218886179) internal successors, (102896), 100052 states have internal predecessors, (102896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:08,516 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 100053 states to 100053 states and 102896 transitions.
[2025-03-16 15:23:08,517 INFO  L78                 Accepts]: Start accepts. Automaton has 100053 states and 102896 transitions. Word has length 1551
[2025-03-16 15:23:08,518 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:23:08,518 INFO  L471      AbstractCegarLoop]: Abstraction has 100053 states and 102896 transitions.
[2025-03-16 15:23:08,518 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:08,518 INFO  L276                IsEmpty]: Start isEmpty. Operand 100053 states and 102896 transitions.
[2025-03-16 15:23:08,554 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1597
[2025-03-16 15:23:08,554 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:23:08,554 INFO  L218           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:23:08,554 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2025-03-16 15:23:08,554 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:23:08,555 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:23:08,555 INFO  L85        PathProgramCache]: Analyzing trace with hash 1507875403, now seen corresponding path program 1 times
[2025-03-16 15:23:08,555 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:23:08,555 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933800340]
[2025-03-16 15:23:08,555 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:23:08,555 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:23:08,754 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1596 statements into 1 equivalence classes.
[2025-03-16 15:23:08,797 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1596 of 1596 statements.
[2025-03-16 15:23:08,798 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:23:08,798 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:23:10,016 INFO  L134       CoverageAnalysis]: Checked inductivity of 3351 backedges. 2422 proven. 0 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked.
[2025-03-16 15:23:10,016 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:23:10,016 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933800340]
[2025-03-16 15:23:10,016 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933800340] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:23:10,016 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:23:10,016 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 15:23:10,016 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681520638]
[2025-03-16 15:23:10,016 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:23:10,017 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 15:23:10,017 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:23:10,018 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 15:23:10,018 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-03-16 15:23:10,018 INFO  L87              Difference]: Start difference. First operand 100053 states and 102896 transitions. Second operand  has 4 states, 4 states have (on average 231.75) internal successors, (927), 4 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:12,748 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:23:12,748 INFO  L93              Difference]: Finished difference Result 230465 states and 237569 transitions.
[2025-03-16 15:23:12,748 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 15:23:12,748 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 231.75) internal successors, (927), 4 states have internal predecessors, (927), 0 states have call successors, (0), 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 1596
[2025-03-16 15:23:12,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:23:12,888 INFO  L225             Difference]: With dead ends: 230465
[2025-03-16 15:23:12,888 INFO  L226             Difference]: Without dead ends: 131103
[2025-03-16 15:23:12,915 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-03-16 15:23:12,915 INFO  L435           NwaCegarLoop]: 947 mSDtfsCounter, 1244 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4296 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 4612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 4296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2025-03-16 15:23:12,915 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 964 Invalid, 4612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 4296 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2025-03-16 15:23:12,989 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 131103 states.
[2025-03-16 15:23:13,836 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 131103 to 130413.
[2025-03-16 15:23:13,921 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 130413 states, 130412 states have (on average 1.0246373033156457) internal successors, (133625), 130412 states have internal predecessors, (133625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:14,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 130413 states to 130413 states and 133625 transitions.
[2025-03-16 15:23:14,035 INFO  L78                 Accepts]: Start accepts. Automaton has 130413 states and 133625 transitions. Word has length 1596
[2025-03-16 15:23:14,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:23:14,036 INFO  L471      AbstractCegarLoop]: Abstraction has 130413 states and 133625 transitions.
[2025-03-16 15:23:14,036 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 231.75) internal successors, (927), 4 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-16 15:23:14,036 INFO  L276                IsEmpty]: Start isEmpty. Operand 130413 states and 133625 transitions.
[2025-03-16 15:23:14,250 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1739
[2025-03-16 15:23:14,251 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:23:14,251 INFO  L218           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2025-03-16 15:23:14,251 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2025-03-16 15:23:14,251 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:23:14,252 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:23:14,252 INFO  L85        PathProgramCache]: Analyzing trace with hash 467780727, now seen corresponding path program 1 times
[2025-03-16 15:23:14,252 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:23:14,252 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193275022]
[2025-03-16 15:23:14,252 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:23:14,252 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:23:14,317 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1738 statements into 1 equivalence classes.
[2025-03-16 15:23:14,359 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1738 of 1738 statements.
[2025-03-16 15:23:14,359 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:23:14,359 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:23:15,639 INFO  L134       CoverageAnalysis]: Checked inductivity of 4065 backedges. 1104 proven. 0 refuted. 0 times theorem prover too weak. 2961 trivial. 0 not checked.
[2025-03-16 15:23:15,639 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:23:15,639 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193275022]
[2025-03-16 15:23:15,640 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193275022] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:23:15,640 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:23:15,640 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 15:23:15,640 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230248162]
[2025-03-16 15:23:15,640 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:23:15,641 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 15:23:15,641 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:23:15,641 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 15:23:15,641 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 15:23:15,641 INFO  L87              Difference]: Start difference. First operand 130413 states and 133625 transitions. Second operand  has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)