./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.3.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 798a7b37
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.elevator.3.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 2e4ac21b8a005dfb332b79c7a527805fd9487d54188fb330cb5764e6911959cc
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-798a7b3-m
[2025-03-03 17:24:13,544 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-03 17:24:13,600 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-03 17:24:13,605 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-03 17:24:13,606 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-03 17:24:13,628 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-03 17:24:13,630 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-03 17:24:13,630 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-03 17:24:13,630 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-03 17:24:13,630 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-03 17:24:13,631 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-03 17:24:13,631 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-03 17:24:13,631 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-03 17:24:13,631 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-03 17:24:13,631 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-03 17:24:13,631 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-03 17:24:13,631 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-03 17:24:13,631 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-03 17:24:13,632 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 17:24:13,632 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-03 17:24:13,632 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-03 17:24:13,632 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 -> 2e4ac21b8a005dfb332b79c7a527805fd9487d54188fb330cb5764e6911959cc
[2025-03-03 17:24:13,857 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-03 17:24:13,865 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-03 17:24:13,868 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-03 17:24:13,868 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-03 17:24:13,869 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-03 17:24:13,869 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.3.prop1-func-interl.c
[2025-03-03 17:24:14,989 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d535b06bc/d53de3f6d9e14054a52b7db44010feb0/FLAG6c8690748
[2025-03-03 17:24:15,285 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-03 17:24:15,286 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.3.prop1-func-interl.c
[2025-03-03 17:24:15,310 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d535b06bc/d53de3f6d9e14054a52b7db44010feb0/FLAG6c8690748
[2025-03-03 17:24:15,561 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d535b06bc/d53de3f6d9e14054a52b7db44010feb0
[2025-03-03 17:24:15,563 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-03 17:24:15,564 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-03 17:24:15,565 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-03 17:24:15,565 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-03 17:24:15,568 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-03 17:24:15,569 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:24:15" (1/1) ...
[2025-03-03 17:24:15,569 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf0269b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:15, skipping insertion in model container
[2025-03-03 17:24:15,569 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:24:15" (1/1) ...
[2025-03-03 17:24:15,621 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-03 17:24:15,751 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.elevator.3.prop1-func-interl.c[1175,1188]
[2025-03-03 17:24:16,071 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 17:24:16,078 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-03 17:24:16,086 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.elevator.3.prop1-func-interl.c[1175,1188]
[2025-03-03 17:24:16,286 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 17:24:16,296 INFO  L204         MainTranslator]: Completed translation
[2025-03-03 17:24:16,297 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16 WrapperNode
[2025-03-03 17:24:16,297 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-03 17:24:16,298 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-03 17:24:16,298 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-03 17:24:16,298 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-03 17:24:16,303 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:16,362 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:17,214 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 11013
[2025-03-03 17:24:17,215 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-03 17:24:17,215 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-03 17:24:17,215 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-03 17:24:17,215 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-03 17:24:17,221 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:17,221 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:17,492 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:17,687 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].
[2025-03-03 17:24:17,688 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:17,693 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:17,960 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:17,989 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:18,026 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:18,078 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:18,288 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-03 17:24:18,291 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-03 17:24:18,291 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-03 17:24:18,292 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-03 17:24:18,293 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (1/1) ...
[2025-03-03 17:24:18,298 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 17:24:18,308 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 17:24:18,319 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)
[2025-03-03 17:24:18,322 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
[2025-03-03 17:24:18,339 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-03 17:24:18,339 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-03 17:24:18,339 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-03 17:24:18,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-03 17:24:18,810 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-03 17:24:18,811 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-03 17:24:29,280 INFO  L?                        ?]: Removed 6189 outVars from TransFormulas that were not future-live.
[2025-03-03 17:24:29,281 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-03 17:24:29,578 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-03 17:24:29,579 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-03 17:24:29,579 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:24:29 BoogieIcfgContainer
[2025-03-03 17:24:29,579 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-03 17:24:29,582 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-03 17:24:29,582 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-03 17:24:29,586 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-03 17:24:29,586 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:24:15" (1/3) ...
[2025-03-03 17:24:29,586 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa35d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:24:29, skipping insertion in model container
[2025-03-03 17:24:29,586 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:24:16" (2/3) ...
[2025-03-03 17:24:29,587 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa35d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:24:29, skipping insertion in model container
[2025-03-03 17:24:29,587 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:24:29" (3/3) ...
[2025-03-03 17:24:29,588 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.elevator.3.prop1-func-interl.c
[2025-03-03 17:24:29,600 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-03 17:24:29,603 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.elevator.3.prop1-func-interl.c that has 1 procedures, 3824 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-03 17:24:29,692 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-03 17:24:29,701 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;@d561d0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-03 17:24:29,701 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-03 17:24:29,712 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3824 states, 3822 states have (on average 1.5) internal successors, (5733), 3823 states have internal predecessors, (5733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:29,722 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2025-03-03 17:24:29,723 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:24:29,723 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 17:24:29,724 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:24:29,727 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:24:29,727 INFO  L85        PathProgramCache]: Analyzing trace with hash 376894114, now seen corresponding path program 1 times
[2025-03-03 17:24:29,732 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:24:29,732 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347318291]
[2025-03-03 17:24:29,733 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:24:29,733 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:24:29,862 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes.
[2025-03-03 17:24:29,996 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements.
[2025-03-03 17:24:29,996 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:24:29,997 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:24:30,760 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:24:30,764 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:24:30,764 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347318291]
[2025-03-03 17:24:30,764 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347318291] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:24:30,765 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:24:30,765 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 17:24:30,766 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119090934]
[2025-03-03 17:24:30,767 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:24:30,770 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 17:24:30,770 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:24:30,785 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 17:24:30,786 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 17:24:30,794 INFO  L87              Difference]: Start difference. First operand  has 3824 states, 3822 states have (on average 1.5) internal successors, (5733), 3823 states have internal predecessors, (5733), 0 states have call successors, (0), 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 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:32,375 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:24:32,375 INFO  L93              Difference]: Finished difference Result 7449 states and 11171 transitions.
[2025-03-03 17:24:32,376 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 17:24:32,377 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 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 203
[2025-03-03 17:24:32,378 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:24:32,397 INFO  L225             Difference]: With dead ends: 7449
[2025-03-03 17:24:32,398 INFO  L226             Difference]: Without dead ends: 3823
[2025-03-03 17:24:32,409 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
[2025-03-03 17:24:32,411 INFO  L435           NwaCegarLoop]: 4774 mSDtfsCounter, 0 mSDsluCounter, 9543 mSDsCounter, 0 mSdLazyCounter, 2869 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14317 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-03-03 17:24:32,411 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14317 Invalid, 2869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2869 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-03-03 17:24:32,427 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3823 states.
[2025-03-03 17:24:32,539 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3823 to 3823.
[2025-03-03 17:24:32,546 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3823 states, 3822 states have (on average 1.499476713762428) internal successors, (5731), 3822 states have internal predecessors, (5731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:32,562 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 5731 transitions.
[2025-03-03 17:24:32,563 INFO  L78                 Accepts]: Start accepts. Automaton has 3823 states and 5731 transitions. Word has length 203
[2025-03-03 17:24:32,564 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:24:32,566 INFO  L471      AbstractCegarLoop]: Abstraction has 3823 states and 5731 transitions.
[2025-03-03 17:24:32,566 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:32,566 INFO  L276                IsEmpty]: Start isEmpty. Operand 3823 states and 5731 transitions.
[2025-03-03 17:24:32,571 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 205
[2025-03-03 17:24:32,571 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:24:32,571 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 17:24:32,571 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-03 17:24:32,573 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:24:32,573 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:24:32,573 INFO  L85        PathProgramCache]: Analyzing trace with hash -1196499227, now seen corresponding path program 1 times
[2025-03-03 17:24:32,573 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:24:32,573 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466102188]
[2025-03-03 17:24:32,573 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:24:32,573 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:24:32,641 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes.
[2025-03-03 17:24:32,672 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements.
[2025-03-03 17:24:32,674 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:24:32,674 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:24:32,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:24:32,932 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:24:32,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466102188]
[2025-03-03 17:24:32,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466102188] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:24:32,932 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:24:32,933 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 17:24:32,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38532292]
[2025-03-03 17:24:32,933 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:24:32,934 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 17:24:32,934 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:24:32,934 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 17:24:32,935 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 17:24:32,935 INFO  L87              Difference]: Start difference. First operand 3823 states and 5731 transitions. Second operand  has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:34,329 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:24:34,330 INFO  L93              Difference]: Finished difference Result 7450 states and 11169 transitions.
[2025-03-03 17:24:34,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 17:24:34,330 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 0 states have call successors, (0), 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 204
[2025-03-03 17:24:34,331 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:24:34,341 INFO  L225             Difference]: With dead ends: 7450
[2025-03-03 17:24:34,342 INFO  L226             Difference]: Without dead ends: 3825
[2025-03-03 17:24:34,346 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
[2025-03-03 17:24:34,347 INFO  L435           NwaCegarLoop]: 4774 mSDtfsCounter, 0 mSDsluCounter, 9540 mSDsCounter, 0 mSdLazyCounter, 2872 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14314 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-03-03 17:24:34,347 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14314 Invalid, 2872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2872 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-03-03 17:24:34,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3825 states.
[2025-03-03 17:24:34,397 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3825.
[2025-03-03 17:24:34,403 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3825 states, 3824 states have (on average 1.4992154811715481) internal successors, (5733), 3824 states have internal predecessors, (5733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:34,413 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3825 states to 3825 states and 5733 transitions.
[2025-03-03 17:24:34,413 INFO  L78                 Accepts]: Start accepts. Automaton has 3825 states and 5733 transitions. Word has length 204
[2025-03-03 17:24:34,414 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:24:34,414 INFO  L471      AbstractCegarLoop]: Abstraction has 3825 states and 5733 transitions.
[2025-03-03 17:24:34,414 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:34,414 INFO  L276                IsEmpty]: Start isEmpty. Operand 3825 states and 5733 transitions.
[2025-03-03 17:24:34,415 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 206
[2025-03-03 17:24:34,415 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:24:34,416 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 17:24:34,416 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-03 17:24:34,416 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:24:34,416 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:24:34,416 INFO  L85        PathProgramCache]: Analyzing trace with hash -800222467, now seen corresponding path program 1 times
[2025-03-03 17:24:34,417 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:24:34,417 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554781009]
[2025-03-03 17:24:34,417 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:24:34,417 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:24:34,457 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes.
[2025-03-03 17:24:34,478 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements.
[2025-03-03 17:24:34,478 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:24:34,478 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:24:34,758 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:24:34,759 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:24:34,759 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554781009]
[2025-03-03 17:24:34,759 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554781009] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:24:34,759 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:24:34,759 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 17:24:34,760 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164112787]
[2025-03-03 17:24:34,760 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:24:34,760 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 17:24:34,760 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:24:34,760 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 17:24:34,761 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 17:24:34,761 INFO  L87              Difference]: Start difference. First operand 3825 states and 5733 transitions. Second operand  has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:36,104 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:24:36,105 INFO  L93              Difference]: Finished difference Result 7454 states and 11173 transitions.
[2025-03-03 17:24:36,105 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 17:24:36,105 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 0 states have call successors, (0), 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 205
[2025-03-03 17:24:36,106 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:24:36,116 INFO  L225             Difference]: With dead ends: 7454
[2025-03-03 17:24:36,116 INFO  L226             Difference]: Without dead ends: 3827
[2025-03-03 17:24:36,121 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
[2025-03-03 17:24:36,121 INFO  L435           NwaCegarLoop]: 4774 mSDtfsCounter, 0 mSDsluCounter, 9535 mSDsCounter, 0 mSdLazyCounter, 2877 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14309 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-03-03 17:24:36,121 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14309 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2877 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-03-03 17:24:36,126 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3827 states.
[2025-03-03 17:24:36,167 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 3827.
[2025-03-03 17:24:36,173 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3827 states, 3826 states have (on average 1.4989545216936748) internal successors, (5735), 3826 states have internal predecessors, (5735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:36,181 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3827 states to 3827 states and 5735 transitions.
[2025-03-03 17:24:36,181 INFO  L78                 Accepts]: Start accepts. Automaton has 3827 states and 5735 transitions. Word has length 205
[2025-03-03 17:24:36,181 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:24:36,182 INFO  L471      AbstractCegarLoop]: Abstraction has 3827 states and 5735 transitions.
[2025-03-03 17:24:36,182 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:36,182 INFO  L276                IsEmpty]: Start isEmpty. Operand 3827 states and 5735 transitions.
[2025-03-03 17:24:36,183 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 207
[2025-03-03 17:24:36,183 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:24:36,183 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 17:24:36,184 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-03 17:24:36,184 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:24:36,184 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:24:36,184 INFO  L85        PathProgramCache]: Analyzing trace with hash -1443691510, now seen corresponding path program 1 times
[2025-03-03 17:24:36,184 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:24:36,184 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853430156]
[2025-03-03 17:24:36,185 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:24:36,185 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:24:36,225 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 206 statements into 1 equivalence classes.
[2025-03-03 17:24:36,245 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 206 of 206 statements.
[2025-03-03 17:24:36,246 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:24:36,246 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:24:36,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:24:36,480 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:24:36,480 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853430156]
[2025-03-03 17:24:36,480 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853430156] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:24:36,480 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:24:36,480 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-03-03 17:24:36,480 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191104538]
[2025-03-03 17:24:36,480 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:24:36,481 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 17:24:36,481 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:24:36,482 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 17:24:36,482 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-03-03 17:24:36,482 INFO  L87              Difference]: Start difference. First operand 3827 states and 5735 transitions. Second operand  has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:38,366 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:24:38,366 INFO  L93              Difference]: Finished difference Result 7464 states and 11185 transitions.
[2025-03-03 17:24:38,366 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-03 17:24:38,367 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 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 206
[2025-03-03 17:24:38,367 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:24:38,377 INFO  L225             Difference]: With dead ends: 7464
[2025-03-03 17:24:38,377 INFO  L226             Difference]: Without dead ends: 3835
[2025-03-03 17:24:38,382 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-03-03 17:24:38,382 INFO  L435           NwaCegarLoop]: 4773 mSDtfsCounter, 3 mSDsluCounter, 19073 mSDsCounter, 0 mSdLazyCounter, 4798 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 23846 SdHoareTripleChecker+Invalid, 4799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2025-03-03 17:24:38,382 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 23846 Invalid, 4799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4798 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2025-03-03 17:24:38,386 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3835 states.
[2025-03-03 17:24:38,426 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3835 to 3831.
[2025-03-03 17:24:38,431 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3831 states, 3830 states have (on average 1.4989556135770234) internal successors, (5741), 3830 states have internal predecessors, (5741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:38,438 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5741 transitions.
[2025-03-03 17:24:38,439 INFO  L78                 Accepts]: Start accepts. Automaton has 3831 states and 5741 transitions. Word has length 206
[2025-03-03 17:24:38,439 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:24:38,439 INFO  L471      AbstractCegarLoop]: Abstraction has 3831 states and 5741 transitions.
[2025-03-03 17:24:38,439 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:38,439 INFO  L276                IsEmpty]: Start isEmpty. Operand 3831 states and 5741 transitions.
[2025-03-03 17:24:38,441 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 208
[2025-03-03 17:24:38,441 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:24:38,441 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 17:24:38,441 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-03 17:24:38,441 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:24:38,442 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:24:38,442 INFO  L85        PathProgramCache]: Analyzing trace with hash -1104960424, now seen corresponding path program 1 times
[2025-03-03 17:24:38,442 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:24:38,442 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806320530]
[2025-03-03 17:24:38,442 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:24:38,442 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:24:38,479 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes.
[2025-03-03 17:24:38,495 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements.
[2025-03-03 17:24:38,495 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:24:38,495 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:24:38,745 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:24:38,746 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:24:38,746 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806320530]
[2025-03-03 17:24:38,746 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806320530] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:24:38,746 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:24:38,746 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 17:24:38,746 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451688885]
[2025-03-03 17:24:38,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:24:38,746 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 17:24:38,747 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:24:38,747 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 17:24:38,747 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-03-03 17:24:38,747 INFO  L87              Difference]: Start difference. First operand 3831 states and 5741 transitions. Second operand  has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:40,538 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:24:40,538 INFO  L93              Difference]: Finished difference Result 10731 states and 16084 transitions.
[2025-03-03 17:24:40,539 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-03 17:24:40,539 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 0 states have call successors, (0), 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 207
[2025-03-03 17:24:40,539 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:24:40,555 INFO  L225             Difference]: With dead ends: 10731
[2025-03-03 17:24:40,555 INFO  L226             Difference]: Without dead ends: 7098
[2025-03-03 17:24:40,559 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-03-03 17:24:40,559 INFO  L435           NwaCegarLoop]: 4769 mSDtfsCounter, 5000 mSDsluCounter, 14056 mSDsCounter, 0 mSdLazyCounter, 3796 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5000 SdHoareTripleChecker+Valid, 18825 SdHoareTripleChecker+Invalid, 3796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2025-03-03 17:24:40,559 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5000 Valid, 18825 Invalid, 3796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3796 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2025-03-03 17:24:40,570 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7098 states.
[2025-03-03 17:24:40,632 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7098 to 4017.
[2025-03-03 17:24:40,644 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4017 states, 4016 states have (on average 1.4987549800796813) internal successors, (6019), 4016 states have internal predecessors, (6019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:40,651 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4017 states to 4017 states and 6019 transitions.
[2025-03-03 17:24:40,651 INFO  L78                 Accepts]: Start accepts. Automaton has 4017 states and 6019 transitions. Word has length 207
[2025-03-03 17:24:40,652 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:24:40,652 INFO  L471      AbstractCegarLoop]: Abstraction has 4017 states and 6019 transitions.
[2025-03-03 17:24:40,652 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:40,652 INFO  L276                IsEmpty]: Start isEmpty. Operand 4017 states and 6019 transitions.
[2025-03-03 17:24:40,709 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2017
[2025-03-03 17:24:40,710 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:24:40,711 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 17:24:40,711 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-03 17:24:40,711 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:24:40,712 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:24:40,713 INFO  L85        PathProgramCache]: Analyzing trace with hash -996696209, now seen corresponding path program 1 times
[2025-03-03 17:24:40,713 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:24:40,713 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449938863]
[2025-03-03 17:24:40,713 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:24:40,714 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:24:40,938 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2016 statements into 1 equivalence classes.
[2025-03-03 17:24:43,448 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2016 of 2016 statements.
[2025-03-03 17:24:43,448 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:24:43,449 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:24:46,634 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:24:46,635 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:24:46,637 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449938863]
[2025-03-03 17:24:46,637 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449938863] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:24:46,637 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:24:46,637 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-03 17:24:46,637 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592263223]
[2025-03-03 17:24:46,637 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:24:46,639 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-03 17:24:46,639 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:24:46,642 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-03 17:24:46,644 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-03 17:24:46,645 INFO  L87              Difference]: Start difference. First operand 4017 states and 6019 transitions. Second operand  has 3 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:47,724 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:24:47,725 INFO  L93              Difference]: Finished difference Result 7651 states and 11466 transitions.
[2025-03-03 17:24:47,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-03 17:24:47,726 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 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 2016
[2025-03-03 17:24:47,726 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:24:47,735 INFO  L225             Difference]: With dead ends: 7651
[2025-03-03 17:24:47,735 INFO  L226             Difference]: Without dead ends: 4018
[2025-03-03 17:24:47,738 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-03 17:24:47,739 INFO  L435           NwaCegarLoop]: 4775 mSDtfsCounter, 0 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9545 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2025-03-03 17:24:47,739 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9545 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2025-03-03 17:24:47,743 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4018 states.
[2025-03-03 17:24:47,832 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4018 to 4018.
[2025-03-03 17:24:47,837 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4018 states, 4017 states have (on average 1.4986308190191686) internal successors, (6020), 4017 states have internal predecessors, (6020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:47,841 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 6020 transitions.
[2025-03-03 17:24:47,842 INFO  L78                 Accepts]: Start accepts. Automaton has 4018 states and 6020 transitions. Word has length 2016
[2025-03-03 17:24:47,842 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:24:47,842 INFO  L471      AbstractCegarLoop]: Abstraction has 4018 states and 6020 transitions.
[2025-03-03 17:24:47,843 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:47,843 INFO  L276                IsEmpty]: Start isEmpty. Operand 4018 states and 6020 transitions.
[2025-03-03 17:24:47,896 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2017
[2025-03-03 17:24:47,896 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:24:47,897 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-03 17:24:47,898 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-03-03 17:24:47,898 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:24:47,899 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:24:47,900 INFO  L85        PathProgramCache]: Analyzing trace with hash -549725586, now seen corresponding path program 1 times
[2025-03-03 17:24:47,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:24:47,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407378678]
[2025-03-03 17:24:47,901 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:24:47,901 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:24:48,091 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2016 statements into 1 equivalence classes.
[2025-03-03 17:24:49,038 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2016 of 2016 statements.
[2025-03-03 17:24:49,038 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:24:49,038 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:24:51,140 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:24:51,140 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:24:51,140 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407378678]
[2025-03-03 17:24:51,140 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407378678] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:24:51,140 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:24:51,141 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-03 17:24:51,141 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929445579]
[2025-03-03 17:24:51,141 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:24:51,143 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-03 17:24:51,143 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:24:51,144 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-03 17:24:51,144 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-03 17:24:51,145 INFO  L87              Difference]: Start difference. First operand 4018 states and 6020 transitions. Second operand  has 3 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:52,046 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:24:52,046 INFO  L93              Difference]: Finished difference Result 7653 states and 11468 transitions.
[2025-03-03 17:24:52,046 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-03 17:24:52,047 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 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 2016
[2025-03-03 17:24:52,048 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:24:52,058 INFO  L225             Difference]: With dead ends: 7653
[2025-03-03 17:24:52,058 INFO  L226             Difference]: Without dead ends: 4019
[2025-03-03 17:24:52,062 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-03 17:24:52,063 INFO  L435           NwaCegarLoop]: 4775 mSDtfsCounter, 0 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9545 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2025-03-03 17:24:52,063 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9545 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2025-03-03 17:24:52,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4019 states.
[2025-03-03 17:24:52,113 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4019 to 4019.
[2025-03-03 17:24:52,118 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4019 states, 4018 states have (on average 1.498506719761075) internal successors, (6021), 4018 states have internal predecessors, (6021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:52,123 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 6021 transitions.
[2025-03-03 17:24:52,124 INFO  L78                 Accepts]: Start accepts. Automaton has 4019 states and 6021 transitions. Word has length 2016
[2025-03-03 17:24:52,124 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:24:52,125 INFO  L471      AbstractCegarLoop]: Abstraction has 4019 states and 6021 transitions.
[2025-03-03 17:24:52,125 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:52,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 4019 states and 6021 transitions.
[2025-03-03 17:24:52,166 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2017
[2025-03-03 17:24:52,166 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:24:52,167 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-03 17:24:52,167 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-03-03 17:24:52,168 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:24:52,169 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:24:52,169 INFO  L85        PathProgramCache]: Analyzing trace with hash -133137393, now seen corresponding path program 1 times
[2025-03-03 17:24:52,170 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:24:52,170 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125466049]
[2025-03-03 17:24:52,171 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:24:52,171 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:24:52,432 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2016 statements into 1 equivalence classes.
[2025-03-03 17:24:53,191 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2016 of 2016 statements.
[2025-03-03 17:24:53,191 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:24:53,192 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:24:55,771 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:24:55,772 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:24:55,772 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125466049]
[2025-03-03 17:24:55,772 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125466049] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:24:55,772 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:24:55,772 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-03-03 17:24:55,772 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807613625]
[2025-03-03 17:24:55,772 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:24:55,773 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 17:24:55,774 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:24:55,775 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 17:24:55,775 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-03-03 17:24:55,775 INFO  L87              Difference]: Start difference. First operand 4019 states and 6021 transitions. Second operand  has 6 states, 6 states have (on average 336.0) internal successors, (2016), 6 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:58,746 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:24:58,746 INFO  L93              Difference]: Finished difference Result 16673 states and 24992 transitions.
[2025-03-03 17:24:58,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-03-03 17:24:58,747 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 336.0) internal successors, (2016), 6 states have internal predecessors, (2016), 0 states have call successors, (0), 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 2016
[2025-03-03 17:24:58,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:24:58,765 INFO  L225             Difference]: With dead ends: 16673
[2025-03-03 17:24:58,766 INFO  L226             Difference]: Without dead ends: 13038
[2025-03-03 17:24:58,769 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2025-03-03 17:24:58,769 INFO  L435           NwaCegarLoop]: 8850 mSDtfsCounter, 11902 mSDsluCounter, 31305 mSDsCounter, 0 mSdLazyCounter, 8076 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11902 SdHoareTripleChecker+Valid, 40155 SdHoareTripleChecker+Invalid, 8076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2025-03-03 17:24:58,769 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11902 Valid, 40155 Invalid, 8076 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 8076 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2025-03-03 17:24:58,777 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13038 states.
[2025-03-03 17:24:58,856 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13038 to 7068.
[2025-03-03 17:24:58,863 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7068 states, 7067 states have (on average 1.4990802320645253) internal successors, (10594), 7067 states have internal predecessors, (10594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:58,870 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7068 states to 7068 states and 10594 transitions.
[2025-03-03 17:24:58,870 INFO  L78                 Accepts]: Start accepts. Automaton has 7068 states and 10594 transitions. Word has length 2016
[2025-03-03 17:24:58,872 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:24:58,872 INFO  L471      AbstractCegarLoop]: Abstraction has 7068 states and 10594 transitions.
[2025-03-03 17:24:58,872 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 336.0) internal successors, (2016), 6 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:24:58,872 INFO  L276                IsEmpty]: Start isEmpty. Operand 7068 states and 10594 transitions.
[2025-03-03 17:24:58,896 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2018
[2025-03-03 17:24:58,896 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:24:58,897 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-03 17:24:58,897 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-03-03 17:24:58,897 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:24:58,898 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:24:58,899 INFO  L85        PathProgramCache]: Analyzing trace with hash -2016363305, now seen corresponding path program 1 times
[2025-03-03 17:24:58,899 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:24:58,899 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902897638]
[2025-03-03 17:24:58,899 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:24:58,899 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:24:59,091 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2017 statements into 1 equivalence classes.
[2025-03-03 17:24:59,738 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2017 of 2017 statements.
[2025-03-03 17:24:59,738 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:24:59,738 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:25:01,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:25:01,740 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:25:01,741 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902897638]
[2025-03-03 17:25:01,741 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902897638] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:25:01,741 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:25:01,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 17:25:01,741 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334442711]
[2025-03-03 17:25:01,741 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:25:01,742 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 17:25:01,742 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:25:01,743 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 17:25:01,743 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 17:25:01,743 INFO  L87              Difference]: Start difference. First operand 7068 states and 10594 transitions. Second operand  has 4 states, 4 states have (on average 504.25) internal successors, (2017), 4 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:02,869 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:25:02,869 INFO  L93              Difference]: Finished difference Result 13940 states and 20895 transitions.
[2025-03-03 17:25:02,869 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 17:25:02,870 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 504.25) internal successors, (2017), 4 states have internal predecessors, (2017), 0 states have call successors, (0), 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 2017
[2025-03-03 17:25:02,870 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:25:02,880 INFO  L225             Difference]: With dead ends: 13940
[2025-03-03 17:25:02,881 INFO  L226             Difference]: Without dead ends: 7070
[2025-03-03 17:25:02,887 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
[2025-03-03 17:25:02,887 INFO  L435           NwaCegarLoop]: 4774 mSDtfsCounter, 0 mSDsluCounter, 9535 mSDsCounter, 0 mSdLazyCounter, 2877 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14309 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2025-03-03 17:25:02,888 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14309 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2877 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2025-03-03 17:25:02,894 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7070 states.
[2025-03-03 17:25:02,977 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7070 to 7070.
[2025-03-03 17:25:02,983 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7070 states, 7069 states have (on average 1.4989390295657095) internal successors, (10596), 7069 states have internal predecessors, (10596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:02,992 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7070 states to 7070 states and 10596 transitions.
[2025-03-03 17:25:02,993 INFO  L78                 Accepts]: Start accepts. Automaton has 7070 states and 10596 transitions. Word has length 2017
[2025-03-03 17:25:02,993 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:25:02,993 INFO  L471      AbstractCegarLoop]: Abstraction has 7070 states and 10596 transitions.
[2025-03-03 17:25:02,994 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 504.25) internal successors, (2017), 4 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:02,994 INFO  L276                IsEmpty]: Start isEmpty. Operand 7070 states and 10596 transitions.
[2025-03-03 17:25:03,041 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2019
[2025-03-03 17:25:03,041 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:25:03,042 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-03 17:25:03,042 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-03-03 17:25:03,042 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:25:03,043 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:25:03,044 INFO  L85        PathProgramCache]: Analyzing trace with hash 231586548, now seen corresponding path program 1 times
[2025-03-03 17:25:03,044 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:25:03,044 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795234804]
[2025-03-03 17:25:03,044 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:25:03,044 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:25:03,289 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2018 statements into 1 equivalence classes.
[2025-03-03 17:25:03,997 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2018 of 2018 statements.
[2025-03-03 17:25:03,997 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:25:03,998 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:25:06,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:25:06,737 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:25:06,737 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795234804]
[2025-03-03 17:25:06,737 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795234804] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:25:06,737 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:25:06,737 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-03-03 17:25:06,737 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546219560]
[2025-03-03 17:25:06,737 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:25:06,738 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-03-03 17:25:06,738 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:25:06,740 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-03-03 17:25:06,740 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2025-03-03 17:25:06,740 INFO  L87              Difference]: Start difference. First operand 7070 states and 10596 transitions. Second operand  has 7 states, 7 states have (on average 288.2857142857143) internal successors, (2018), 7 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:09,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:25:09,699 INFO  L93              Difference]: Finished difference Result 31360 states and 47015 transitions.
[2025-03-03 17:25:09,699 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-03-03 17:25:09,699 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 288.2857142857143) internal successors, (2018), 7 states have internal predecessors, (2018), 0 states have call successors, (0), 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 2018
[2025-03-03 17:25:09,701 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:25:09,728 INFO  L225             Difference]: With dead ends: 31360
[2025-03-03 17:25:09,728 INFO  L226             Difference]: Without dead ends: 24488
[2025-03-03 17:25:09,745 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2025-03-03 17:25:09,745 INFO  L435           NwaCegarLoop]: 8905 mSDtfsCounter, 11774 mSDsluCounter, 31470 mSDsCounter, 0 mSdLazyCounter, 8121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11774 SdHoareTripleChecker+Valid, 40375 SdHoareTripleChecker+Invalid, 8122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2025-03-03 17:25:09,746 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11774 Valid, 40375 Invalid, 8122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 8121 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2025-03-03 17:25:09,765 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24488 states.
[2025-03-03 17:25:09,872 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24488 to 7070.
[2025-03-03 17:25:09,880 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7070 states, 7069 states have (on average 1.4989390295657095) internal successors, (10596), 7069 states have internal predecessors, (10596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:09,887 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7070 states to 7070 states and 10596 transitions.
[2025-03-03 17:25:09,887 INFO  L78                 Accepts]: Start accepts. Automaton has 7070 states and 10596 transitions. Word has length 2018
[2025-03-03 17:25:09,888 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:25:09,888 INFO  L471      AbstractCegarLoop]: Abstraction has 7070 states and 10596 transitions.
[2025-03-03 17:25:09,889 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 288.2857142857143) internal successors, (2018), 7 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:09,889 INFO  L276                IsEmpty]: Start isEmpty. Operand 7070 states and 10596 transitions.
[2025-03-03 17:25:09,910 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2020
[2025-03-03 17:25:09,910 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:25:09,911 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-03 17:25:09,912 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2025-03-03 17:25:09,912 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:25:09,913 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:25:09,913 INFO  L85        PathProgramCache]: Analyzing trace with hash 984927956, now seen corresponding path program 1 times
[2025-03-03 17:25:09,913 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:25:09,914 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091180013]
[2025-03-03 17:25:09,914 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:25:09,914 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:25:10,094 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2019 statements into 1 equivalence classes.
[2025-03-03 17:25:10,681 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2019 of 2019 statements.
[2025-03-03 17:25:10,681 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:25:10,681 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:25:12,807 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:25:12,807 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:25:12,807 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091180013]
[2025-03-03 17:25:12,807 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091180013] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:25:12,807 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:25:12,807 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 17:25:12,807 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063737932]
[2025-03-03 17:25:12,807 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:25:12,809 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 17:25:12,809 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:25:12,810 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 17:25:12,810 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 17:25:12,810 INFO  L87              Difference]: Start difference. First operand 7070 states and 10596 transitions. Second operand  has 5 states, 5 states have (on average 403.8) internal successors, (2019), 5 states have internal predecessors, (2019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:14,119 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:25:14,120 INFO  L93              Difference]: Finished difference Result 13946 states and 20902 transitions.
[2025-03-03 17:25:14,120 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 17:25:14,120 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 403.8) internal successors, (2019), 5 states have internal predecessors, (2019), 0 states have call successors, (0), 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 2019
[2025-03-03 17:25:14,121 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:25:14,129 INFO  L225             Difference]: With dead ends: 13946
[2025-03-03 17:25:14,129 INFO  L226             Difference]: Without dead ends: 7074
[2025-03-03 17:25:14,136 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 17:25:14,137 INFO  L435           NwaCegarLoop]: 4774 mSDtfsCounter, 0 mSDsluCounter, 14299 mSDsCounter, 0 mSdLazyCounter, 3842 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19073 SdHoareTripleChecker+Invalid, 3843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-03 17:25:14,137 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19073 Invalid, 3843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3842 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-03 17:25:14,141 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7074 states.
[2025-03-03 17:25:14,195 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7074 to 7072.
[2025-03-03 17:25:14,201 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7072 states, 7071 states have (on average 1.4987979069438553) internal successors, (10598), 7071 states have internal predecessors, (10598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:14,208 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 10598 transitions.
[2025-03-03 17:25:14,208 INFO  L78                 Accepts]: Start accepts. Automaton has 7072 states and 10598 transitions. Word has length 2019
[2025-03-03 17:25:14,209 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:25:14,209 INFO  L471      AbstractCegarLoop]: Abstraction has 7072 states and 10598 transitions.
[2025-03-03 17:25:14,209 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 403.8) internal successors, (2019), 5 states have internal predecessors, (2019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:14,209 INFO  L276                IsEmpty]: Start isEmpty. Operand 7072 states and 10598 transitions.
[2025-03-03 17:25:14,290 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2021
[2025-03-03 17:25:14,291 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:25:14,292 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 17:25:14,292 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2025-03-03 17:25:14,292 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:25:14,293 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:25:14,294 INFO  L85        PathProgramCache]: Analyzing trace with hash 259020121, now seen corresponding path program 1 times
[2025-03-03 17:25:14,294 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:25:14,294 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323145943]
[2025-03-03 17:25:14,294 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:25:14,294 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:25:14,477 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2020 statements into 1 equivalence classes.
[2025-03-03 17:25:15,547 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2020 of 2020 statements.
[2025-03-03 17:25:15,547 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:25:15,547 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:25:17,920 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:25:17,921 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:25:17,921 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323145943]
[2025-03-03 17:25:17,921 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323145943] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:25:17,921 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:25:17,922 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 17:25:17,922 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586560544]
[2025-03-03 17:25:17,922 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:25:17,923 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 17:25:17,923 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:25:17,924 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 17:25:17,924 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 17:25:17,924 INFO  L87              Difference]: Start difference. First operand 7072 states and 10598 transitions. Second operand  has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:18,915 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:25:18,915 INFO  L93              Difference]: Finished difference Result 13944 states and 20898 transitions.
[2025-03-03 17:25:18,916 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 17:25:18,916 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 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 2020
[2025-03-03 17:25:18,917 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:25:18,922 INFO  L225             Difference]: With dead ends: 13944
[2025-03-03 17:25:18,922 INFO  L226             Difference]: Without dead ends: 7070
[2025-03-03 17:25:18,927 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-03 17:25:18,928 INFO  L435           NwaCegarLoop]: 4743 mSDtfsCounter, 5408 mSDsluCounter, 4740 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5408 SdHoareTripleChecker+Valid, 9483 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-03 17:25:18,928 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5408 Valid, 9483 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-03 17:25:18,932 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7070 states.
[2025-03-03 17:25:18,982 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7070 to 7070.
[2025-03-03 17:25:18,988 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7070 states, 7069 states have (on average 1.498373178667421) internal successors, (10592), 7069 states have internal predecessors, (10592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:18,994 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7070 states to 7070 states and 10592 transitions.
[2025-03-03 17:25:18,995 INFO  L78                 Accepts]: Start accepts. Automaton has 7070 states and 10592 transitions. Word has length 2020
[2025-03-03 17:25:18,995 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:25:18,995 INFO  L471      AbstractCegarLoop]: Abstraction has 7070 states and 10592 transitions.
[2025-03-03 17:25:18,996 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:18,996 INFO  L276                IsEmpty]: Start isEmpty. Operand 7070 states and 10592 transitions.
[2025-03-03 17:25:19,017 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2022
[2025-03-03 17:25:19,017 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:25:19,018 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-03 17:25:19,018 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2025-03-03 17:25:19,018 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:25:19,019 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:25:19,019 INFO  L85        PathProgramCache]: Analyzing trace with hash 1905693571, now seen corresponding path program 1 times
[2025-03-03 17:25:19,019 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:25:19,019 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324102246]
[2025-03-03 17:25:19,019 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:25:19,020 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:25:19,225 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2021 statements into 1 equivalence classes.
[2025-03-03 17:25:19,885 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2021 of 2021 statements.
[2025-03-03 17:25:19,886 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:25:19,886 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:25:21,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:25:21,499 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:25:21,499 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324102246]
[2025-03-03 17:25:21,499 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324102246] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:25:21,499 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:25:21,499 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 17:25:21,499 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319450889]
[2025-03-03 17:25:21,499 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:25:21,500 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 17:25:21,500 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:25:21,501 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 17:25:21,501 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 17:25:21,502 INFO  L87              Difference]: Start difference. First operand 7070 states and 10592 transitions. Second operand  has 4 states, 4 states have (on average 505.25) internal successors, (2021), 4 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:22,540 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 17:25:22,540 INFO  L93              Difference]: Finished difference Result 13943 states and 20889 transitions.
[2025-03-03 17:25:22,540 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 17:25:22,541 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 505.25) internal successors, (2021), 4 states have internal predecessors, (2021), 0 states have call successors, (0), 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 2021
[2025-03-03 17:25:22,541 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 17:25:22,547 INFO  L225             Difference]: With dead ends: 13943
[2025-03-03 17:25:22,547 INFO  L226             Difference]: Without dead ends: 7069
[2025-03-03 17:25:22,554 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-03 17:25:22,555 INFO  L435           NwaCegarLoop]: 4764 mSDtfsCounter, 5400 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5400 SdHoareTripleChecker+Valid, 9521 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2025-03-03 17:25:22,555 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5400 Valid, 9521 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2025-03-03 17:25:22,560 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7069 states.
[2025-03-03 17:25:22,619 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7069 to 7069.
[2025-03-03 17:25:22,626 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7069 states, 7068 states have (on average 1.4983022071307301) internal successors, (10590), 7068 states have internal predecessors, (10590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:22,633 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7069 states to 7069 states and 10590 transitions.
[2025-03-03 17:25:22,633 INFO  L78                 Accepts]: Start accepts. Automaton has 7069 states and 10590 transitions. Word has length 2021
[2025-03-03 17:25:22,634 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 17:25:22,634 INFO  L471      AbstractCegarLoop]: Abstraction has 7069 states and 10590 transitions.
[2025-03-03 17:25:22,635 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 505.25) internal successors, (2021), 4 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 17:25:22,635 INFO  L276                IsEmpty]: Start isEmpty. Operand 7069 states and 10590 transitions.
[2025-03-03 17:25:22,655 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2023
[2025-03-03 17:25:22,656 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 17:25:22,656 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-03-03 17:25:22,657 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2025-03-03 17:25:22,657 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 17:25:22,658 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 17:25:22,658 INFO  L85        PathProgramCache]: Analyzing trace with hash -298044371, now seen corresponding path program 1 times
[2025-03-03 17:25:22,658 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 17:25:22,658 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168824168]
[2025-03-03 17:25:22,658 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 17:25:22,658 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 17:25:22,837 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2022 statements into 1 equivalence classes.
[2025-03-03 17:25:23,504 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2022 of 2022 statements.
[2025-03-03 17:25:23,504 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 17:25:23,504 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 17:25:27,174 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 17:25:27,175 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 17:25:27,175 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168824168]
[2025-03-03 17:25:27,175 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168824168] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 17:25:27,175 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 17:25:27,175 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-03-03 17:25:27,175 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414648361]
[2025-03-03 17:25:27,175 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 17:25:27,176 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-03-03 17:25:27,176 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 17:25:27,177 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-03-03 17:25:27,177 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2025-03-03 17:25:27,178 INFO  L87              Difference]: Start difference. First operand 7069 states and 10590 transitions. Second operand  has 7 states, 7 states have (on average 288.85714285714283) internal successors, (2022), 7 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)