./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.5.prop1-func-interl.c --full-output --architecture 64bit


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


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/hardware-verification-bv/btor2c-lazyMod.frogs.5.prop1-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash df2ee8516ab66174091d97d97f7764805d73fe04feab840ebc68f1fae44f290b
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-8fc3dc6-m
[2025-03-16 21:51:09,474 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-16 21:51:09,531 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-16 21:51:09,535 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-16 21:51:09,535 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-16 21:51:09,549 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-16 21:51:09,551 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-16 21:51:09,551 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-16 21:51:09,551 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-16 21:51:09,551 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-16 21:51:09,552 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-16 21:51:09,552 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-16 21:51:09,552 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-16 21:51:09,552 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-16 21:51:09,552 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-16 21:51:09,552 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-16 21:51:09,552 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-16 21:51:09,553 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-16 21:51:09,553 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 21:51:09,554 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-16 21:51:09,554 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-16 21:51:09,554 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-16 21:51:09,554 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-16 21:51:09,554 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-16 21:51:09,554 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-16 21:51:09,554 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-16 21:51:09,554 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-16 21:51:09,554 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-16 21:51:09,554 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-16 21:51:09,554 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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df2ee8516ab66174091d97d97f7764805d73fe04feab840ebc68f1fae44f290b
[2025-03-16 21:51:09,764 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-16 21:51:09,770 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-16 21:51:09,773 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-16 21:51:09,774 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-16 21:51:09,774 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-16 21:51:09,776 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.5.prop1-func-interl.c
[2025-03-16 21:51:10,935 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcb6d988/76d7a66ba7974949b82c948524bb380c/FLAG7428421cf
[2025-03-16 21:51:11,339 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-16 21:51:11,340 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.5.prop1-func-interl.c
[2025-03-16 21:51:11,366 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcb6d988/76d7a66ba7974949b82c948524bb380c/FLAG7428421cf
[2025-03-16 21:51:11,508 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcb6d988/76d7a66ba7974949b82c948524bb380c
[2025-03-16 21:51:11,510 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-16 21:51:11,511 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-16 21:51:11,512 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-16 21:51:11,512 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-16 21:51:11,515 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-16 21:51:11,516 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:51:11" (1/1) ...
[2025-03-16 21:51:11,518 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db718ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:11, skipping insertion in model container
[2025-03-16 21:51:11,518 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:51:11" (1/1) ...
[2025-03-16 21:51:11,586 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-16 21:51:11,757 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/hardware-verification-bv/btor2c-lazyMod.frogs.5.prop1-func-interl.c[1172,1185]
[2025-03-16 21:51:12,251 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 21:51:12,258 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-16 21:51:12,265 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/hardware-verification-bv/btor2c-lazyMod.frogs.5.prop1-func-interl.c[1172,1185]
[2025-03-16 21:51:12,602 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 21:51:12,615 INFO  L204         MainTranslator]: Completed translation
[2025-03-16 21:51:12,616 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12 WrapperNode
[2025-03-16 21:51:12,616 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-16 21:51:12,617 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-16 21:51:12,617 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-16 21:51:12,618 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-16 21:51:12,623 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:12,727 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:13,774 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 14870
[2025-03-16 21:51:13,774 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-16 21:51:13,777 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-16 21:51:13,777 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-16 21:51:13,777 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-16 21:51:13,785 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:13,785 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:14,068 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:14,314 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 21:51:14,314 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:14,315 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:14,603 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:14,636 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:14,692 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:14,752 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:14,924 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-16 21:51:14,924 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-16 21:51:14,924 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-16 21:51:14,924 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-16 21:51:14,926 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (1/1) ...
[2025-03-16 21:51:14,930 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 21:51:14,943 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 21:51:14,954 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 21:51:14,956 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 21:51:14,976 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-16 21:51:14,976 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-16 21:51:14,976 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-16 21:51:14,976 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-16 21:51:15,746 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-16 21:51:15,748 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-16 21:51:30,225 INFO  L?                        ?]: Removed 9833 outVars from TransFormulas that were not future-live.
[2025-03-16 21:51:30,226 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-16 21:51:30,480 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-16 21:51:30,481 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-16 21:51:30,481 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 09:51:30 BoogieIcfgContainer
[2025-03-16 21:51:30,481 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-16 21:51:30,483 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-16 21:51:30,483 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-16 21:51:30,487 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-16 21:51:30,487 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 09:51:11" (1/3) ...
[2025-03-16 21:51:30,488 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd8eee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:51:30, skipping insertion in model container
[2025-03-16 21:51:30,488 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:51:12" (2/3) ...
[2025-03-16 21:51:30,489 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd8eee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:51:30, skipping insertion in model container
[2025-03-16 21:51:30,489 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 09:51:30" (3/3) ...
[2025-03-16 21:51:30,490 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.frogs.5.prop1-func-interl.c
[2025-03-16 21:51:30,502 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-16 21:51:30,505 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.frogs.5.prop1-func-interl.c that has 1 procedures, 4164 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-16 21:51:30,610 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-16 21:51:30,619 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;@6f5740df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-16 21:51:30,620 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-16 21:51:30,634 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4164 states, 4162 states have (on average 1.507208073041807) internal successors, (6273), 4163 states have internal predecessors, (6273), 0 states have call successors, (0), 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 21:51:30,641 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2025-03-16 21:51:30,642 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:51:30,642 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 21:51:30,643 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:51:30,648 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:51:30,648 INFO  L85        PathProgramCache]: Analyzing trace with hash -1609832202, now seen corresponding path program 1 times
[2025-03-16 21:51:30,653 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:51:30,654 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883682346]
[2025-03-16 21:51:30,654 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:51:30,654 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:51:30,782 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes.
[2025-03-16 21:51:30,875 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements.
[2025-03-16 21:51:30,878 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:51:30,878 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:51:31,372 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 21:51:31,374 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:51:31,374 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883682346]
[2025-03-16 21:51:31,375 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883682346] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:51:31,375 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:51:31,375 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 21:51:31,376 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689037666]
[2025-03-16 21:51:31,376 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:51:31,380 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:51:31,380 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:51:31,395 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:51:31,395 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:51:31,404 INFO  L87              Difference]: Start difference. First operand  has 4164 states, 4162 states have (on average 1.507208073041807) internal successors, (6273), 4163 states have internal predecessors, (6273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 21:51:33,184 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:51:33,184 INFO  L93              Difference]: Finished difference Result 8179 states and 12325 transitions.
[2025-03-16 21:51:33,185 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:51:33,186 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 100
[2025-03-16 21:51:33,187 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:51:33,212 INFO  L225             Difference]: With dead ends: 8179
[2025-03-16 21:51:33,213 INFO  L226             Difference]: Without dead ends: 4164
[2025-03-16 21:51:33,226 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:51:33,228 INFO  L435           NwaCegarLoop]: 5244 mSDtfsCounter, 0 mSDsluCounter, 10483 mSDsCounter, 0 mSdLazyCounter, 3082 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15727 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-03-16 21:51:33,228 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15727 Invalid, 3082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3082 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-03-16 21:51:33,247 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4164 states.
[2025-03-16 21:51:33,356 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 4164.
[2025-03-16 21:51:33,363 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4164 states, 4163 states have (on average 1.5066058131155418) internal successors, (6272), 4163 states have internal predecessors, (6272), 0 states have call successors, (0), 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 21:51:33,477 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4164 states to 4164 states and 6272 transitions.
[2025-03-16 21:51:33,478 INFO  L78                 Accepts]: Start accepts. Automaton has 4164 states and 6272 transitions. Word has length 100
[2025-03-16 21:51:33,479 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:51:33,479 INFO  L471      AbstractCegarLoop]: Abstraction has 4164 states and 6272 transitions.
[2025-03-16 21:51:33,480 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 21:51:33,480 INFO  L276                IsEmpty]: Start isEmpty. Operand 4164 states and 6272 transitions.
[2025-03-16 21:51:33,482 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2025-03-16 21:51:33,484 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:51:33,484 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 21:51:33,484 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-16 21:51:33,484 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:51:33,486 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:51:33,486 INFO  L85        PathProgramCache]: Analyzing trace with hash 1639495385, now seen corresponding path program 1 times
[2025-03-16 21:51:33,486 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:51:33,486 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293881488]
[2025-03-16 21:51:33,486 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:51:33,486 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:51:33,560 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes.
[2025-03-16 21:51:33,578 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements.
[2025-03-16 21:51:33,578 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:51:33,578 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:51:33,766 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 21:51:33,766 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:51:33,766 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293881488]
[2025-03-16 21:51:33,766 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293881488] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:51:33,766 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:51:33,766 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 21:51:33,766 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027757209]
[2025-03-16 21:51:33,766 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:51:33,767 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:51:33,767 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:51:33,768 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:51:33,768 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:51:33,768 INFO  L87              Difference]: Start difference. First operand 4164 states and 6272 transitions. Second operand  has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 21:51:35,472 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:51:35,473 INFO  L93              Difference]: Finished difference Result 8181 states and 12324 transitions.
[2025-03-16 21:51:35,473 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:51:35,473 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 101
[2025-03-16 21:51:35,474 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:51:35,487 INFO  L225             Difference]: With dead ends: 8181
[2025-03-16 21:51:35,487 INFO  L226             Difference]: Without dead ends: 4166
[2025-03-16 21:51:35,492 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:51:35,493 INFO  L435           NwaCegarLoop]: 5244 mSDtfsCounter, 0 mSDsluCounter, 10480 mSDsCounter, 0 mSdLazyCounter, 3085 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15724 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-03-16 21:51:35,493 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15724 Invalid, 3085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3085 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-03-16 21:51:35,499 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4166 states.
[2025-03-16 21:51:35,549 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4166 to 4166.
[2025-03-16 21:51:35,554 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4166 states, 4165 states have (on average 1.5063625450180071) internal successors, (6274), 4165 states have internal predecessors, (6274), 0 states have call successors, (0), 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 21:51:35,560 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4166 states to 4166 states and 6274 transitions.
[2025-03-16 21:51:35,560 INFO  L78                 Accepts]: Start accepts. Automaton has 4166 states and 6274 transitions. Word has length 101
[2025-03-16 21:51:35,561 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:51:35,561 INFO  L471      AbstractCegarLoop]: Abstraction has 4166 states and 6274 transitions.
[2025-03-16 21:51:35,561 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 21:51:35,561 INFO  L276                IsEmpty]: Start isEmpty. Operand 4166 states and 6274 transitions.
[2025-03-16 21:51:35,565 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2025-03-16 21:51:35,565 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:51:35,565 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 21:51:35,566 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-16 21:51:35,566 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:51:35,566 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:51:35,566 INFO  L85        PathProgramCache]: Analyzing trace with hash 1216265553, now seen corresponding path program 1 times
[2025-03-16 21:51:35,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:51:35,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740108931]
[2025-03-16 21:51:35,566 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:51:35,566 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:51:35,621 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes.
[2025-03-16 21:51:35,632 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements.
[2025-03-16 21:51:35,632 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:51:35,632 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:51:35,763 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 21:51:35,763 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:51:35,763 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740108931]
[2025-03-16 21:51:35,763 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740108931] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:51:35,763 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:51:35,763 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 21:51:35,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132153654]
[2025-03-16 21:51:35,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:51:35,763 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:51:35,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:51:35,764 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:51:35,764 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:51:35,764 INFO  L87              Difference]: Start difference. First operand 4166 states and 6274 transitions. Second operand  has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 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 21:51:37,233 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:51:37,233 INFO  L93              Difference]: Finished difference Result 8185 states and 12328 transitions.
[2025-03-16 21:51:37,236 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:51:37,237 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 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 102
[2025-03-16 21:51:37,237 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:51:37,249 INFO  L225             Difference]: With dead ends: 8185
[2025-03-16 21:51:37,249 INFO  L226             Difference]: Without dead ends: 4168
[2025-03-16 21:51:37,253 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:51:37,254 INFO  L435           NwaCegarLoop]: 5244 mSDtfsCounter, 0 mSDsluCounter, 10475 mSDsCounter, 0 mSdLazyCounter, 3090 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15719 SdHoareTripleChecker+Invalid, 3090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-03-16 21:51:37,254 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15719 Invalid, 3090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3090 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-03-16 21:51:37,259 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4168 states.
[2025-03-16 21:51:37,301 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4168 to 4168.
[2025-03-16 21:51:37,307 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4168 states, 4167 states have (on average 1.506119510439165) internal successors, (6276), 4167 states have internal predecessors, (6276), 0 states have call successors, (0), 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 21:51:37,312 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4168 states to 4168 states and 6276 transitions.
[2025-03-16 21:51:37,312 INFO  L78                 Accepts]: Start accepts. Automaton has 4168 states and 6276 transitions. Word has length 102
[2025-03-16 21:51:37,313 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:51:37,313 INFO  L471      AbstractCegarLoop]: Abstraction has 4168 states and 6276 transitions.
[2025-03-16 21:51:37,313 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 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 21:51:37,313 INFO  L276                IsEmpty]: Start isEmpty. Operand 4168 states and 6276 transitions.
[2025-03-16 21:51:37,314 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2025-03-16 21:51:37,314 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:51:37,314 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 21:51:37,314 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-16 21:51:37,314 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:51:37,315 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:51:37,315 INFO  L85        PathProgramCache]: Analyzing trace with hash 937895934, now seen corresponding path program 1 times
[2025-03-16 21:51:37,315 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:51:37,315 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599573922]
[2025-03-16 21:51:37,315 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:51:37,315 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:51:37,365 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes.
[2025-03-16 21:51:37,376 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements.
[2025-03-16 21:51:37,376 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:51:37,376 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:51:37,909 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 21:51:37,912 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:51:37,912 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599573922]
[2025-03-16 21:51:37,912 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599573922] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:51:37,912 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:51:37,912 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 21:51:37,912 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344936498]
[2025-03-16 21:51:37,912 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:51:37,912 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-16 21:51:37,912 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:51:37,913 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-16 21:51:37,913 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-03-16 21:51:37,913 INFO  L87              Difference]: Start difference. First operand 4168 states and 6276 transitions. Second operand  has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 21:51:40,578 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:51:40,578 INFO  L93              Difference]: Finished difference Result 12136 states and 18279 transitions.
[2025-03-16 21:51:40,578 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-16 21:51:40,579 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103
[2025-03-16 21:51:40,579 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:51:40,598 INFO  L225             Difference]: With dead ends: 12136
[2025-03-16 21:51:40,598 INFO  L226             Difference]: Without dead ends: 8117
[2025-03-16 21:51:40,604 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-03-16 21:51:40,605 INFO  L435           NwaCegarLoop]: 5240 mSDtfsCounter, 6081 mSDsluCounter, 15529 mSDsCounter, 0 mSdLazyCounter, 4088 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6081 SdHoareTripleChecker+Valid, 20769 SdHoareTripleChecker+Invalid, 4088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2025-03-16 21:51:40,605 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6081 Valid, 20769 Invalid, 4088 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4088 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2025-03-16 21:51:40,612 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8117 states.
[2025-03-16 21:51:40,669 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8117 to 4204.
[2025-03-16 21:51:40,674 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4204 states, 4203 states have (on average 1.5060670949321913) internal successors, (6330), 4203 states have internal predecessors, (6330), 0 states have call successors, (0), 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 21:51:40,679 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 6330 transitions.
[2025-03-16 21:51:40,679 INFO  L78                 Accepts]: Start accepts. Automaton has 4204 states and 6330 transitions. Word has length 103
[2025-03-16 21:51:40,679 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:51:40,679 INFO  L471      AbstractCegarLoop]: Abstraction has 4204 states and 6330 transitions.
[2025-03-16 21:51:40,679 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 21:51:40,679 INFO  L276                IsEmpty]: Start isEmpty. Operand 4204 states and 6330 transitions.
[2025-03-16 21:51:40,739 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2081
[2025-03-16 21:51:40,739 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:51:40,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 21:51:40,740 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-16 21:51:40,740 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:51:40,741 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:51:40,742 INFO  L85        PathProgramCache]: Analyzing trace with hash 1747603432, now seen corresponding path program 1 times
[2025-03-16 21:51:40,742 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:51:40,742 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446229506]
[2025-03-16 21:51:40,742 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:51:40,742 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:51:41,188 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2080 statements into 1 equivalence classes.
[2025-03-16 21:51:44,161 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2080 of 2080 statements.
[2025-03-16 21:51:44,161 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:51:44,161 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:51:48,477 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 21:51:48,480 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:51:48,480 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446229506]
[2025-03-16 21:51:48,480 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446229506] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:51:48,481 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:51:48,481 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 21:51:48,481 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691612025]
[2025-03-16 21:51:48,481 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:51:48,482 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:51:48,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:51:48,485 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:51:48,485 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:51:48,490 INFO  L87              Difference]: Start difference. First operand 4204 states and 6330 transitions. Second operand  has 4 states, 4 states have (on average 520.0) internal successors, (2080), 3 states have internal predecessors, (2080), 0 states have call successors, (0), 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 21:51:50,116 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:51:50,117 INFO  L93              Difference]: Finished difference Result 8223 states and 12383 transitions.
[2025-03-16 21:51:50,117 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:51:50,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 520.0) internal successors, (2080), 3 states have internal predecessors, (2080), 0 states have call successors, (0), 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 2080
[2025-03-16 21:51:50,118 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:51:50,128 INFO  L225             Difference]: With dead ends: 8223
[2025-03-16 21:51:50,128 INFO  L226             Difference]: Without dead ends: 4204
[2025-03-16 21:51:50,133 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 21:51:50,134 INFO  L435           NwaCegarLoop]: 5070 mSDtfsCounter, 6173 mSDsluCounter, 5067 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6173 SdHoareTripleChecker+Valid, 10137 SdHoareTripleChecker+Invalid, 2397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-03-16 21:51:50,134 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6173 Valid, 10137 Invalid, 2397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-03-16 21:51:50,140 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4204 states.
[2025-03-16 21:51:50,191 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 4204.
[2025-03-16 21:51:50,197 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4204 states, 4203 states have (on average 1.5058291696407329) internal successors, (6329), 4203 states have internal predecessors, (6329), 0 states have call successors, (0), 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 21:51:50,204 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 6329 transitions.
[2025-03-16 21:51:50,204 INFO  L78                 Accepts]: Start accepts. Automaton has 4204 states and 6329 transitions. Word has length 2080
[2025-03-16 21:51:50,205 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:51:50,205 INFO  L471      AbstractCegarLoop]: Abstraction has 4204 states and 6329 transitions.
[2025-03-16 21:51:50,205 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 520.0) internal successors, (2080), 3 states have internal predecessors, (2080), 0 states have call successors, (0), 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 21:51:50,206 INFO  L276                IsEmpty]: Start isEmpty. Operand 4204 states and 6329 transitions.
[2025-03-16 21:51:50,235 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2082
[2025-03-16 21:51:50,235 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:51:50,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:51:50,237 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-16 21:51:50,237 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:51:50,238 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:51:50,238 INFO  L85        PathProgramCache]: Analyzing trace with hash 81561513, now seen corresponding path program 1 times
[2025-03-16 21:51:50,238 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:51:50,238 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478008018]
[2025-03-16 21:51:50,239 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:51:50,239 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:51:50,734 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2081 statements into 1 equivalence classes.
[2025-03-16 21:51:53,403 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2081 of 2081 statements.
[2025-03-16 21:51:53,403 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:51:53,403 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:51:55,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 21:51:55,761 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:51:55,762 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478008018]
[2025-03-16 21:51:55,762 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478008018] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:51:55,762 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:51:55,762 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 21:51:55,762 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528018433]
[2025-03-16 21:51:55,762 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:51:55,763 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:51:55,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:51:55,764 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:51:55,765 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:51:55,765 INFO  L87              Difference]: Start difference. First operand 4204 states and 6329 transitions. Second operand  has 4 states, 4 states have (on average 520.25) internal successors, (2081), 3 states have internal predecessors, (2081), 0 states have call successors, (0), 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 21:51:57,028 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:51:57,029 INFO  L93              Difference]: Finished difference Result 8223 states and 12381 transitions.
[2025-03-16 21:51:57,029 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:51:57,030 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 520.25) internal successors, (2081), 3 states have internal predecessors, (2081), 0 states have call successors, (0), 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 2081
[2025-03-16 21:51:57,030 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:51:57,037 INFO  L225             Difference]: With dead ends: 8223
[2025-03-16 21:51:57,037 INFO  L226             Difference]: Without dead ends: 4204
[2025-03-16 21:51:57,041 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 21:51:57,041 INFO  L435           NwaCegarLoop]: 5069 mSDtfsCounter, 6163 mSDsluCounter, 5066 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6163 SdHoareTripleChecker+Valid, 10135 SdHoareTripleChecker+Invalid, 2397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-16 21:51:57,041 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6163 Valid, 10135 Invalid, 2397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-16 21:51:57,046 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4204 states.
[2025-03-16 21:51:57,082 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 4204.
[2025-03-16 21:51:57,086 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4204 states, 4203 states have (on average 1.5055912443492743) internal successors, (6328), 4203 states have internal predecessors, (6328), 0 states have call successors, (0), 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 21:51:57,089 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 6328 transitions.
[2025-03-16 21:51:57,090 INFO  L78                 Accepts]: Start accepts. Automaton has 4204 states and 6328 transitions. Word has length 2081
[2025-03-16 21:51:57,090 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:51:57,090 INFO  L471      AbstractCegarLoop]: Abstraction has 4204 states and 6328 transitions.
[2025-03-16 21:51:57,091 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 520.25) internal successors, (2081), 3 states have internal predecessors, (2081), 0 states have call successors, (0), 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 21:51:57,091 INFO  L276                IsEmpty]: Start isEmpty. Operand 4204 states and 6328 transitions.
[2025-03-16 21:51:57,112 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2083
[2025-03-16 21:51:57,112 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:51:57,113 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 21:51:57,113 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-03-16 21:51:57,113 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:51:57,114 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:51:57,115 INFO  L85        PathProgramCache]: Analyzing trace with hash -1443173390, now seen corresponding path program 1 times
[2025-03-16 21:51:57,115 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:51:57,115 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115311457]
[2025-03-16 21:51:57,115 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:51:57,115 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:51:57,548 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2082 statements into 1 equivalence classes.
[2025-03-16 21:52:01,920 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2082 of 2082 statements.
[2025-03-16 21:52:01,921 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:52:01,921 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:52:04,983 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 21:52:04,984 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:52:04,984 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115311457]
[2025-03-16 21:52:04,984 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115311457] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:52:04,984 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:52:04,984 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 21:52:04,984 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058408225]
[2025-03-16 21:52:04,984 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:52:04,986 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:52:04,986 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:52:04,987 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:52:04,987 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:52:04,987 INFO  L87              Difference]: Start difference. First operand 4204 states and 6328 transitions. Second operand  has 4 states, 4 states have (on average 520.5) internal successors, (2082), 3 states have internal predecessors, (2082), 0 states have call successors, (0), 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 21:52:06,143 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:52:06,143 INFO  L93              Difference]: Finished difference Result 8223 states and 12379 transitions.
[2025-03-16 21:52:06,143 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:52:06,144 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 520.5) internal successors, (2082), 3 states have internal predecessors, (2082), 0 states have call successors, (0), 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 2082
[2025-03-16 21:52:06,144 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:52:06,151 INFO  L225             Difference]: With dead ends: 8223
[2025-03-16 21:52:06,151 INFO  L226             Difference]: Without dead ends: 4204
[2025-03-16 21:52:06,154 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 21:52:06,154 INFO  L435           NwaCegarLoop]: 5085 mSDtfsCounter, 6087 mSDsluCounter, 5082 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6087 SdHoareTripleChecker+Valid, 10167 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2025-03-16 21:52:06,155 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6087 Valid, 10167 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2363 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2025-03-16 21:52:06,158 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4204 states.
[2025-03-16 21:52:06,190 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 4204.
[2025-03-16 21:52:06,195 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4204 states, 4203 states have (on average 1.5053533190578159) internal successors, (6327), 4203 states have internal predecessors, (6327), 0 states have call successors, (0), 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 21:52:06,199 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 6327 transitions.
[2025-03-16 21:52:06,199 INFO  L78                 Accepts]: Start accepts. Automaton has 4204 states and 6327 transitions. Word has length 2082
[2025-03-16 21:52:06,199 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:52:06,199 INFO  L471      AbstractCegarLoop]: Abstraction has 4204 states and 6327 transitions.
[2025-03-16 21:52:06,200 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 520.5) internal successors, (2082), 3 states have internal predecessors, (2082), 0 states have call successors, (0), 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 21:52:06,200 INFO  L276                IsEmpty]: Start isEmpty. Operand 4204 states and 6327 transitions.
[2025-03-16 21:52:06,222 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2084
[2025-03-16 21:52:06,222 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:52:06,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 21:52:06,223 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-03-16 21:52:06,224 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:52:06,225 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:52:06,225 INFO  L85        PathProgramCache]: Analyzing trace with hash -1430051538, now seen corresponding path program 1 times
[2025-03-16 21:52:06,225 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:52:06,226 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921284496]
[2025-03-16 21:52:06,226 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:52:06,227 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:52:06,686 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2083 statements into 1 equivalence classes.
[2025-03-16 21:52:08,934 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2083 of 2083 statements.
[2025-03-16 21:52:08,934 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:52:08,934 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:52:11,924 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 21:52:11,925 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:52:11,925 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921284496]
[2025-03-16 21:52:11,925 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921284496] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:52:11,925 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:52:11,925 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 21:52:11,925 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899548645]
[2025-03-16 21:52:11,926 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:52:11,927 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:52:11,927 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:52:11,928 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:52:11,928 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:52:11,929 INFO  L87              Difference]: Start difference. First operand 4204 states and 6327 transitions. Second operand  has 4 states, 4 states have (on average 520.75) internal successors, (2083), 3 states have internal predecessors, (2083), 0 states have call successors, (0), 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 21:52:13,162 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:52:13,162 INFO  L93              Difference]: Finished difference Result 8223 states and 12377 transitions.
[2025-03-16 21:52:13,162 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:52:13,163 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 520.75) internal successors, (2083), 3 states have internal predecessors, (2083), 0 states have call successors, (0), 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 2083
[2025-03-16 21:52:13,164 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:52:13,170 INFO  L225             Difference]: With dead ends: 8223
[2025-03-16 21:52:13,171 INFO  L226             Difference]: Without dead ends: 4204
[2025-03-16 21:52:13,175 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 21:52:13,176 INFO  L435           NwaCegarLoop]: 5084 mSDtfsCounter, 6081 mSDsluCounter, 5081 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6081 SdHoareTripleChecker+Valid, 10165 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-16 21:52:13,176 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6081 Valid, 10165 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2363 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-16 21:52:13,181 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4204 states.
[2025-03-16 21:52:13,294 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 4204.
[2025-03-16 21:52:13,299 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4204 states, 4203 states have (on average 1.5051153937663573) internal successors, (6326), 4203 states have internal predecessors, (6326), 0 states have call successors, (0), 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 21:52:13,304 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 6326 transitions.
[2025-03-16 21:52:13,304 INFO  L78                 Accepts]: Start accepts. Automaton has 4204 states and 6326 transitions. Word has length 2083
[2025-03-16 21:52:13,304 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:52:13,304 INFO  L471      AbstractCegarLoop]: Abstraction has 4204 states and 6326 transitions.
[2025-03-16 21:52:13,305 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 520.75) internal successors, (2083), 3 states have internal predecessors, (2083), 0 states have call successors, (0), 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 21:52:13,305 INFO  L276                IsEmpty]: Start isEmpty. Operand 4204 states and 6326 transitions.
[2025-03-16 21:52:13,326 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2085
[2025-03-16 21:52:13,326 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:52:13,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 21:52:13,327 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-03-16 21:52:13,328 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:52:13,330 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:52:13,331 INFO  L85        PathProgramCache]: Analyzing trace with hash -651086746, now seen corresponding path program 1 times
[2025-03-16 21:52:13,331 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:52:13,332 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660749723]
[2025-03-16 21:52:13,332 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:52:13,333 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:52:13,742 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2084 statements into 1 equivalence classes.
[2025-03-16 21:52:16,097 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2084 of 2084 statements.
[2025-03-16 21:52:16,098 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:52:16,098 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:52:19,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 21:52:19,164 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:52:19,164 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660749723]
[2025-03-16 21:52:19,164 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660749723] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:52:19,165 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:52:19,165 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 21:52:19,165 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768139975]
[2025-03-16 21:52:19,165 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:52:19,166 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:52:19,166 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:52:19,167 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:52:19,167 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:52:19,168 INFO  L87              Difference]: Start difference. First operand 4204 states and 6326 transitions. Second operand  has 4 states, 4 states have (on average 521.0) internal successors, (2084), 3 states have internal predecessors, (2084), 0 states have call successors, (0), 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 21:52:20,366 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:52:20,366 INFO  L93              Difference]: Finished difference Result 8223 states and 12375 transitions.
[2025-03-16 21:52:20,366 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:52:20,367 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 521.0) internal successors, (2084), 3 states have internal predecessors, (2084), 0 states have call successors, (0), 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 2084
[2025-03-16 21:52:20,367 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:52:20,373 INFO  L225             Difference]: With dead ends: 8223
[2025-03-16 21:52:20,373 INFO  L226             Difference]: Without dead ends: 4204
[2025-03-16 21:52:20,377 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 21:52:20,381 INFO  L435           NwaCegarLoop]: 5083 mSDtfsCounter, 6029 mSDsluCounter, 5080 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6029 SdHoareTripleChecker+Valid, 10163 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2025-03-16 21:52:20,381 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6029 Valid, 10163 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2363 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2025-03-16 21:52:20,385 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4204 states.
[2025-03-16 21:52:20,418 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 4204.
[2025-03-16 21:52:20,422 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4204 states, 4203 states have (on average 1.504877468474899) internal successors, (6325), 4203 states have internal predecessors, (6325), 0 states have call successors, (0), 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 21:52:20,426 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 6325 transitions.
[2025-03-16 21:52:20,427 INFO  L78                 Accepts]: Start accepts. Automaton has 4204 states and 6325 transitions. Word has length 2084
[2025-03-16 21:52:20,427 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:52:20,427 INFO  L471      AbstractCegarLoop]: Abstraction has 4204 states and 6325 transitions.
[2025-03-16 21:52:20,428 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 521.0) internal successors, (2084), 3 states have internal predecessors, (2084), 0 states have call successors, (0), 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 21:52:20,428 INFO  L276                IsEmpty]: Start isEmpty. Operand 4204 states and 6325 transitions.
[2025-03-16 21:52:20,447 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2086
[2025-03-16 21:52:20,448 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:52:20,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2025-03-16 21:52:20,449 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-03-16 21:52:20,449 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:52:20,452 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:52:20,453 INFO  L85        PathProgramCache]: Analyzing trace with hash -1516054897, now seen corresponding path program 1 times
[2025-03-16 21:52:20,453 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:52:20,453 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760893401]
[2025-03-16 21:52:20,454 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:52:20,454 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:52:20,898 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2085 statements into 1 equivalence classes.
[2025-03-16 21:52:25,071 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2085 of 2085 statements.
[2025-03-16 21:52:25,072 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:52:25,072 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat