./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.blocks.4.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version e2fb8bed
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.blocks.4.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 97fded05f92437e94fa003b5ae2891bb71eb55bafece74957d9531d2c0728f78
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-e2fb8be-m
[2025-03-08 07:55:16,445 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-08 07:55:16,503 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-08 07:55:16,510 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-08 07:55:16,513 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-08 07:55:16,528 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-08 07:55:16,528 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-08 07:55:16,528 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-08 07:55:16,528 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-08 07:55:16,529 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-08 07:55:16,529 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-08 07:55:16,529 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-08 07:55:16,529 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-08 07:55:16,529 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-08 07:55:16,529 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-08 07:55:16,529 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-08 07:55:16,529 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-08 07:55:16,529 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-08 07:55:16,529 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-08 07:55:16,529 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-08 07:55:16,532 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-08 07:55:16,533 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-08 07:55:16,533 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-08 07:55:16,533 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-08 07:55:16,534 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-08 07:55:16,534 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 -> 97fded05f92437e94fa003b5ae2891bb71eb55bafece74957d9531d2c0728f78
[2025-03-08 07:55:16,756 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-08 07:55:16,761 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-08 07:55:16,763 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-08 07:55:16,763 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-08 07:55:16,764 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-08 07:55:16,765 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.blocks.4.prop1-func-interl.c
[2025-03-08 07:55:17,911 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6b6675a/3aeb8ff3d08f438d89499bf40da06912/FLAG5f8458212
[2025-03-08 07:55:18,235 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-08 07:55:18,236 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.blocks.4.prop1-func-interl.c
[2025-03-08 07:55:18,255 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6b6675a/3aeb8ff3d08f438d89499bf40da06912/FLAG5f8458212
[2025-03-08 07:55:18,469 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6b6675a/3aeb8ff3d08f438d89499bf40da06912
[2025-03-08 07:55:18,472 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-08 07:55:18,473 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-08 07:55:18,474 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-08 07:55:18,475 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-08 07:55:18,477 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-08 07:55:18,478 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 07:55:18" (1/1) ...
[2025-03-08 07:55:18,480 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65eb6918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:18, skipping insertion in model container
[2025-03-08 07:55:18,480 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 07:55:18" (1/1) ...
[2025-03-08 07:55:18,549 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-08 07:55:18,720 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.blocks.4.prop1-func-interl.c[1173,1186]
[2025-03-08 07:55:19,149 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-08 07:55:19,157 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-08 07:55:19,164 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.blocks.4.prop1-func-interl.c[1173,1186]
[2025-03-08 07:55:19,389 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-08 07:55:19,399 INFO  L204         MainTranslator]: Completed translation
[2025-03-08 07:55:19,400 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19 WrapperNode
[2025-03-08 07:55:19,400 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-08 07:55:19,401 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-08 07:55:19,401 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-08 07:55:19,401 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-08 07:55:19,406 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:19,460 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:20,598 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 11456
[2025-03-08 07:55:20,599 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-08 07:55:20,601 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-08 07:55:20,601 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-08 07:55:20,601 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-08 07:55:20,613 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:20,614 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:20,923 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:21,104 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].
[2025-03-08 07:55:21,105 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:21,106 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:21,344 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:21,373 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:21,414 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:21,457 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:21,643 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-08 07:55:21,645 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-08 07:55:21,645 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-08 07:55:21,645 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-08 07:55:21,647 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (1/1) ...
[2025-03-08 07:55:21,654 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-08 07:55:21,670 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-08 07:55:21,685 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)
[2025-03-08 07:55:21,690 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
[2025-03-08 07:55:21,726 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-08 07:55:21,726 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-08 07:55:21,726 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-08 07:55:21,726 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-08 07:55:22,429 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-08 07:55:22,430 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-08 07:55:30,628 INFO  L?                        ?]: Removed 6880 outVars from TransFormulas that were not future-live.
[2025-03-08 07:55:30,629 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-08 07:55:30,854 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-08 07:55:30,855 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-08 07:55:30,855 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 07:55:30 BoogieIcfgContainer
[2025-03-08 07:55:30,856 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-08 07:55:30,857 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-08 07:55:30,858 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-08 07:55:30,861 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-08 07:55:30,861 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 07:55:18" (1/3) ...
[2025-03-08 07:55:30,861 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4cbe13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 07:55:30, skipping insertion in model container
[2025-03-08 07:55:30,861 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:55:19" (2/3) ...
[2025-03-08 07:55:30,862 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4cbe13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 07:55:30, skipping insertion in model container
[2025-03-08 07:55:30,862 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 07:55:30" (3/3) ...
[2025-03-08 07:55:30,863 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.blocks.4.prop1-func-interl.c
[2025-03-08 07:55:30,874 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-08 07:55:30,876 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.blocks.4.prop1-func-interl.c that has 1 procedures, 3646 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-08 07:55:30,984 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-08 07:55:30,995 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;@750ff895, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-08 07:55:30,995 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-08 07:55:31,005 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3646 states, 3644 states have (on average 1.5030186608122942) internal successors, (5477), 3645 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:31,013 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2025-03-08 07:55:31,013 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:55:31,014 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]
[2025-03-08 07:55:31,014 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:55:31,018 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:55:31,018 INFO  L85        PathProgramCache]: Analyzing trace with hash 242842832, now seen corresponding path program 1 times
[2025-03-08 07:55:31,023 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:55:31,023 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764358184]
[2025-03-08 07:55:31,023 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:55:31,024 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:55:31,131 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes.
[2025-03-08 07:55:31,223 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements.
[2025-03-08 07:55:31,223 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:55:31,223 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:55:31,686 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:55:31,686 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:55:31,687 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764358184]
[2025-03-08 07:55:31,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764358184] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:55:31,687 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:55:31,687 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:55:31,689 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696340885]
[2025-03-08 07:55:31,690 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:55:31,692 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:55:31,693 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:55:31,707 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:55:31,707 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:55:31,715 INFO  L87              Difference]: Start difference. First operand  has 3646 states, 3644 states have (on average 1.5030186608122942) internal successors, (5477), 3645 states have internal predecessors, (5477), 0 states have call successors, (0), 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 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:33,266 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:55:33,266 INFO  L93              Difference]: Finished difference Result 7189 states and 10803 transitions.
[2025-03-08 07:55:33,268 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:55:33,269 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 123
[2025-03-08 07:55:33,270 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:55:33,295 INFO  L225             Difference]: With dead ends: 7189
[2025-03-08 07:55:33,295 INFO  L226             Difference]: Without dead ends: 3645
[2025-03-08 07:55:33,306 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
[2025-03-08 07:55:33,308 INFO  L435           NwaCegarLoop]: 4568 mSDtfsCounter, 0 mSDsluCounter, 9131 mSDsCounter, 0 mSdLazyCounter, 2719 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13699 SdHoareTripleChecker+Invalid, 2719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-03-08 07:55:33,308 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13699 Invalid, 2719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2719 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-03-08 07:55:33,325 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3645 states.
[2025-03-08 07:55:33,424 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3645 to 3645.
[2025-03-08 07:55:33,430 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3645 states, 3644 states have (on average 1.502469813391877) internal successors, (5475), 3644 states have internal predecessors, (5475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:33,443 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3645 states to 3645 states and 5475 transitions.
[2025-03-08 07:55:33,445 INFO  L78                 Accepts]: Start accepts. Automaton has 3645 states and 5475 transitions. Word has length 123
[2025-03-08 07:55:33,446 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:55:33,446 INFO  L471      AbstractCegarLoop]: Abstraction has 3645 states and 5475 transitions.
[2025-03-08 07:55:33,447 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:33,447 INFO  L276                IsEmpty]: Start isEmpty. Operand 3645 states and 5475 transitions.
[2025-03-08 07:55:33,450 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2025-03-08 07:55:33,452 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:55:33,452 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]
[2025-03-08 07:55:33,452 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-08 07:55:33,453 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:55:33,453 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:55:33,453 INFO  L85        PathProgramCache]: Analyzing trace with hash -1057121699, now seen corresponding path program 1 times
[2025-03-08 07:55:33,453 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:55:33,453 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829194517]
[2025-03-08 07:55:33,453 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:55:33,454 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:55:33,505 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes.
[2025-03-08 07:55:33,525 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements.
[2025-03-08 07:55:33,525 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:55:33,525 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:55:33,705 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:55:33,705 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:55:33,706 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829194517]
[2025-03-08 07:55:33,706 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829194517] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:55:33,706 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:55:33,706 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:55:33,706 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732339172]
[2025-03-08 07:55:33,706 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:55:33,707 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:55:33,707 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:55:33,707 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:55:33,708 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:55:33,709 INFO  L87              Difference]: Start difference. First operand 3645 states and 5475 transitions. Second operand  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:35,044 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:55:35,045 INFO  L93              Difference]: Finished difference Result 7190 states and 10801 transitions.
[2025-03-08 07:55:35,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:55:35,046 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 124
[2025-03-08 07:55:35,046 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:55:35,058 INFO  L225             Difference]: With dead ends: 7190
[2025-03-08 07:55:35,058 INFO  L226             Difference]: Without dead ends: 3647
[2025-03-08 07:55:35,062 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
[2025-03-08 07:55:35,064 INFO  L435           NwaCegarLoop]: 4568 mSDtfsCounter, 0 mSDsluCounter, 9128 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13696 SdHoareTripleChecker+Invalid, 2722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-03-08 07:55:35,064 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13696 Invalid, 2722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2722 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-03-08 07:55:35,070 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3647 states.
[2025-03-08 07:55:35,109 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 3647.
[2025-03-08 07:55:35,115 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3647 states, 3646 states have (on average 1.5021941854086671) internal successors, (5477), 3646 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:35,124 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3647 states to 3647 states and 5477 transitions.
[2025-03-08 07:55:35,125 INFO  L78                 Accepts]: Start accepts. Automaton has 3647 states and 5477 transitions. Word has length 124
[2025-03-08 07:55:35,125 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:55:35,125 INFO  L471      AbstractCegarLoop]: Abstraction has 3647 states and 5477 transitions.
[2025-03-08 07:55:35,126 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:35,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 3647 states and 5477 transitions.
[2025-03-08 07:55:35,130 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2025-03-08 07:55:35,132 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:55:35,132 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]
[2025-03-08 07:55:35,132 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-08 07:55:35,132 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:55:35,133 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:55:35,133 INFO  L85        PathProgramCache]: Analyzing trace with hash -774486421, now seen corresponding path program 1 times
[2025-03-08 07:55:35,133 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:55:35,133 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242501606]
[2025-03-08 07:55:35,133 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:55:35,133 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:55:35,206 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes.
[2025-03-08 07:55:35,218 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements.
[2025-03-08 07:55:35,219 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:55:35,219 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:55:35,363 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:55:35,363 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:55:35,363 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242501606]
[2025-03-08 07:55:35,363 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242501606] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:55:35,363 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:55:35,363 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:55:35,363 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259886305]
[2025-03-08 07:55:35,364 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:55:35,364 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:55:35,364 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:55:35,364 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:55:35,364 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:55:35,364 INFO  L87              Difference]: Start difference. First operand 3647 states and 5477 transitions. Second operand  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:36,642 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:55:36,643 INFO  L93              Difference]: Finished difference Result 7194 states and 10805 transitions.
[2025-03-08 07:55:36,643 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:55:36,643 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 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 125
[2025-03-08 07:55:36,643 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:55:36,654 INFO  L225             Difference]: With dead ends: 7194
[2025-03-08 07:55:36,655 INFO  L226             Difference]: Without dead ends: 3649
[2025-03-08 07:55:36,658 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
[2025-03-08 07:55:36,659 INFO  L435           NwaCegarLoop]: 4568 mSDtfsCounter, 0 mSDsluCounter, 9123 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13691 SdHoareTripleChecker+Invalid, 2727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-08 07:55:36,659 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13691 Invalid, 2727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2727 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-08 07:55:36,663 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3649 states.
[2025-03-08 07:55:36,698 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 3649.
[2025-03-08 07:55:36,702 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3649 states, 3648 states have (on average 1.5019188596491229) internal successors, (5479), 3648 states have internal predecessors, (5479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:36,706 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3649 states to 3649 states and 5479 transitions.
[2025-03-08 07:55:36,706 INFO  L78                 Accepts]: Start accepts. Automaton has 3649 states and 5479 transitions. Word has length 125
[2025-03-08 07:55:36,706 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:55:36,707 INFO  L471      AbstractCegarLoop]: Abstraction has 3649 states and 5479 transitions.
[2025-03-08 07:55:36,707 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:36,707 INFO  L276                IsEmpty]: Start isEmpty. Operand 3649 states and 5479 transitions.
[2025-03-08 07:55:36,707 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2025-03-08 07:55:36,707 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:55:36,708 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]
[2025-03-08 07:55:36,708 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-08 07:55:36,708 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:55:36,708 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:55:36,708 INFO  L85        PathProgramCache]: Analyzing trace with hash -645874110, now seen corresponding path program 1 times
[2025-03-08 07:55:36,708 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:55:36,708 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242815700]
[2025-03-08 07:55:36,709 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:55:36,709 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:55:36,744 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes.
[2025-03-08 07:55:36,754 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements.
[2025-03-08 07:55:36,754 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:55:36,754 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:55:36,981 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:55:36,981 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:55:36,981 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242815700]
[2025-03-08 07:55:36,981 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242815700] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:55:36,981 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:55:36,982 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-08 07:55:36,982 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536482087]
[2025-03-08 07:55:36,982 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:55:36,982 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-08 07:55:36,983 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:55:36,983 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-08 07:55:36,983 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:55:36,983 INFO  L87              Difference]: Start difference. First operand 3649 states and 5479 transitions. Second operand  has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:38,950 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:55:38,950 INFO  L93              Difference]: Finished difference Result 10673 states and 16030 transitions.
[2025-03-08 07:55:38,950 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-08 07:55:38,951 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 0 states have call successors, (0), 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 126
[2025-03-08 07:55:38,951 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:55:38,967 INFO  L225             Difference]: With dead ends: 10673
[2025-03-08 07:55:38,967 INFO  L226             Difference]: Without dead ends: 7126
[2025-03-08 07:55:38,972 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
[2025-03-08 07:55:38,974 INFO  L435           NwaCegarLoop]: 4564 mSDtfsCounter, 5261 mSDsluCounter, 13561 mSDsCounter, 0 mSdLazyCounter, 3616 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5261 SdHoareTripleChecker+Valid, 18125 SdHoareTripleChecker+Invalid, 3616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2025-03-08 07:55:38,975 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5261 Valid, 18125 Invalid, 3616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3616 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2025-03-08 07:55:38,983 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7126 states.
[2025-03-08 07:55:39,038 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7126 to 3777.
[2025-03-08 07:55:39,043 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.501853813559322) internal successors, (5671), 3776 states have internal predecessors, (5671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:39,048 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5671 transitions.
[2025-03-08 07:55:39,049 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5671 transitions. Word has length 126
[2025-03-08 07:55:39,049 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:55:39,050 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5671 transitions.
[2025-03-08 07:55:39,050 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:39,050 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5671 transitions.
[2025-03-08 07:55:39,100 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1886
[2025-03-08 07:55:39,100 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:55:39,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 07:55:39,102 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-08 07:55:39,102 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:55:39,103 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:55:39,104 INFO  L85        PathProgramCache]: Analyzing trace with hash -1955987556, now seen corresponding path program 1 times
[2025-03-08 07:55:39,104 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:55:39,104 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990530443]
[2025-03-08 07:55:39,104 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:55:39,104 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:55:39,420 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1885 statements into 1 equivalence classes.
[2025-03-08 07:55:40,838 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1885 of 1885 statements.
[2025-03-08 07:55:40,838 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:55:40,838 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:55:43,215 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:55:43,216 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:55:43,216 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990530443]
[2025-03-08 07:55:43,216 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990530443] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:55:43,216 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:55:43,216 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:55:43,217 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375224364]
[2025-03-08 07:55:43,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:55:43,219 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:55:43,219 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:55:43,220 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:55:43,220 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:55:43,221 INFO  L87              Difference]: Start difference. First operand 3777 states and 5671 transitions. Second operand  has 4 states, 4 states have (on average 471.25) internal successors, (1885), 4 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:44,857 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:55:44,858 INFO  L93              Difference]: Finished difference Result 7324 states and 10998 transitions.
[2025-03-08 07:55:44,858 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:55:44,859 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 471.25) internal successors, (1885), 4 states have internal predecessors, (1885), 0 states have call successors, (0), 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 1885
[2025-03-08 07:55:44,859 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:55:44,868 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:55:44,868 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:55:44,871 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:55:44,872 INFO  L435           NwaCegarLoop]: 4563 mSDtfsCounter, 5353 mSDsluCounter, 4561 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5353 SdHoareTripleChecker+Valid, 9124 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-03-08 07:55:44,872 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5353 Valid, 9124 Invalid, 1817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-03-08 07:55:44,876 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:55:44,918 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:55:44,923 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.5015889830508475) internal successors, (5670), 3776 states have internal predecessors, (5670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:44,932 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5670 transitions.
[2025-03-08 07:55:44,933 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5670 transitions. Word has length 1885
[2025-03-08 07:55:44,933 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:55:44,933 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5670 transitions.
[2025-03-08 07:55:44,935 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 471.25) internal successors, (1885), 4 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:44,935 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5670 transitions.
[2025-03-08 07:55:44,989 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1887
[2025-03-08 07:55:44,989 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:55:44,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 07:55:44,991 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-08 07:55:44,991 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:55:44,992 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:55:44,992 INFO  L85        PathProgramCache]: Analyzing trace with hash 938996679, now seen corresponding path program 1 times
[2025-03-08 07:55:44,993 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:55:44,993 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703169015]
[2025-03-08 07:55:44,993 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:55:44,993 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:55:45,311 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1886 statements into 1 equivalence classes.
[2025-03-08 07:55:46,700 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1886 of 1886 statements.
[2025-03-08 07:55:46,701 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:55:46,701 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:55:50,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:55:50,070 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:55:50,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703169015]
[2025-03-08 07:55:50,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703169015] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:55:50,070 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:55:50,071 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:55:50,071 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363289562]
[2025-03-08 07:55:50,071 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:55:50,072 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:55:50,072 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:55:50,073 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:55:50,073 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:55:50,074 INFO  L87              Difference]: Start difference. First operand 3777 states and 5670 transitions. Second operand  has 4 states, 4 states have (on average 471.5) internal successors, (1886), 4 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:51,002 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:55:51,002 INFO  L93              Difference]: Finished difference Result 7324 states and 10996 transitions.
[2025-03-08 07:55:51,003 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:55:51,003 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 471.5) internal successors, (1886), 4 states have internal predecessors, (1886), 0 states have call successors, (0), 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 1886
[2025-03-08 07:55:51,004 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:55:51,012 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:55:51,012 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:55:51,015 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:55:51,016 INFO  L435           NwaCegarLoop]: 4542 mSDtfsCounter, 5303 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5303 SdHoareTripleChecker+Valid, 9082 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-08 07:55:51,016 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5303 Valid, 9082 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-08 07:55:51,020 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:55:51,048 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:55:51,053 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.5013241525423728) internal successors, (5669), 3776 states have internal predecessors, (5669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:51,056 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5669 transitions.
[2025-03-08 07:55:51,056 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5669 transitions. Word has length 1886
[2025-03-08 07:55:51,057 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:55:51,057 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5669 transitions.
[2025-03-08 07:55:51,057 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 471.5) internal successors, (1886), 4 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:51,058 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5669 transitions.
[2025-03-08 07:55:51,076 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1888
[2025-03-08 07:55:51,076 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:55:51,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-08 07:55:51,077 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-03-08 07:55:51,077 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:55:51,078 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:55:51,079 INFO  L85        PathProgramCache]: Analyzing trace with hash 1817084162, now seen corresponding path program 1 times
[2025-03-08 07:55:51,079 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:55:51,079 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799974918]
[2025-03-08 07:55:51,079 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:55:51,079 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:55:51,374 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1887 statements into 1 equivalence classes.
[2025-03-08 07:55:52,281 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1887 of 1887 statements.
[2025-03-08 07:55:52,282 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:55:52,282 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:55:54,587 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:55:54,588 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:55:54,588 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799974918]
[2025-03-08 07:55:54,588 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799974918] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:55:54,588 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:55:54,588 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:55:54,589 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805401803]
[2025-03-08 07:55:54,589 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:55:54,590 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:55:54,590 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:55:54,592 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:55:54,592 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:55:54,592 INFO  L87              Difference]: Start difference. First operand 3777 states and 5669 transitions. Second operand  has 4 states, 4 states have (on average 471.75) internal successors, (1887), 4 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:55,504 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:55:55,504 INFO  L93              Difference]: Finished difference Result 7324 states and 10994 transitions.
[2025-03-08 07:55:55,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:55:55,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 471.75) internal successors, (1887), 4 states have internal predecessors, (1887), 0 states have call successors, (0), 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 1887
[2025-03-08 07:55:55,505 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:55:55,511 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:55:55,511 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:55:55,514 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:55:55,514 INFO  L435           NwaCegarLoop]: 4541 mSDtfsCounter, 5297 mSDsluCounter, 4539 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5297 SdHoareTripleChecker+Valid, 9080 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-08 07:55:55,514 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5297 Valid, 9080 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-08 07:55:55,517 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:55:55,541 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:55:55,544 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.5010593220338984) internal successors, (5668), 3776 states have internal predecessors, (5668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:55,547 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5668 transitions.
[2025-03-08 07:55:55,547 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5668 transitions. Word has length 1887
[2025-03-08 07:55:55,548 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:55:55,548 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5668 transitions.
[2025-03-08 07:55:55,548 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 471.75) internal successors, (1887), 4 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:55,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5668 transitions.
[2025-03-08 07:55:55,565 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1889
[2025-03-08 07:55:55,565 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:55:55,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-08 07:55:55,566 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-03-08 07:55:55,567 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:55:55,567 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:55:55,568 INFO  L85        PathProgramCache]: Analyzing trace with hash 800548891, now seen corresponding path program 1 times
[2025-03-08 07:55:55,568 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:55:55,568 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676674409]
[2025-03-08 07:55:55,568 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:55:55,569 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:55:55,826 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1888 statements into 1 equivalence classes.
[2025-03-08 07:55:56,516 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1888 of 1888 statements.
[2025-03-08 07:55:56,517 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:55:56,517 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:55:58,056 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:55:58,056 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:55:58,056 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676674409]
[2025-03-08 07:55:58,056 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676674409] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:55:58,056 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:55:58,057 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:55:58,057 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482974127]
[2025-03-08 07:55:58,057 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:55:58,058 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:55:58,058 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:55:58,059 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:55:58,059 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:55:58,059 INFO  L87              Difference]: Start difference. First operand 3777 states and 5668 transitions. Second operand  has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:58,969 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:55:58,969 INFO  L93              Difference]: Finished difference Result 7324 states and 10992 transitions.
[2025-03-08 07:55:58,969 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:55:58,970 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 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 1888
[2025-03-08 07:55:58,970 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:55:58,975 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:55:58,976 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:55:58,979 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:55:58,979 INFO  L435           NwaCegarLoop]: 4540 mSDtfsCounter, 5249 mSDsluCounter, 4538 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5249 SdHoareTripleChecker+Valid, 9078 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-08 07:55:58,979 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5249 Valid, 9078 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-08 07:55:58,983 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:55:59,029 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:55:59,033 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.5007944915254237) internal successors, (5667), 3776 states have internal predecessors, (5667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:59,036 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5667 transitions.
[2025-03-08 07:55:59,037 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5667 transitions. Word has length 1888
[2025-03-08 07:55:59,037 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:55:59,037 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5667 transitions.
[2025-03-08 07:55:59,038 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:55:59,038 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5667 transitions.
[2025-03-08 07:55:59,055 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1890
[2025-03-08 07:55:59,056 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:55:59,057 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-03-08 07:55:59,057 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-03-08 07:55:59,057 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:55:59,058 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:55:59,060 INFO  L85        PathProgramCache]: Analyzing trace with hash 953664397, now seen corresponding path program 1 times
[2025-03-08 07:55:59,060 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:55:59,060 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358207178]
[2025-03-08 07:55:59,060 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:55:59,061 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:55:59,300 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1889 statements into 1 equivalence classes.
[2025-03-08 07:56:00,182 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1889 of 1889 statements.
[2025-03-08 07:56:00,182 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:56:00,183 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:56:01,977 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:56:01,978 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:56:01,978 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358207178]
[2025-03-08 07:56:01,978 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358207178] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:56:01,978 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:56:01,978 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:56:01,978 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753407464]
[2025-03-08 07:56:01,978 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:56:01,980 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:56:01,980 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:56:01,981 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:56:01,981 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:56:01,982 INFO  L87              Difference]: Start difference. First operand 3777 states and 5667 transitions. Second operand  has 4 states, 4 states have (on average 472.25) internal successors, (1889), 4 states have internal predecessors, (1889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:02,942 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:56:02,942 INFO  L93              Difference]: Finished difference Result 7324 states and 10990 transitions.
[2025-03-08 07:56:02,942 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:56:02,943 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 472.25) internal successors, (1889), 4 states have internal predecessors, (1889), 0 states have call successors, (0), 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 1889
[2025-03-08 07:56:02,943 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:56:02,948 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:56:02,948 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:56:02,951 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:56:02,951 INFO  L435           NwaCegarLoop]: 4539 mSDtfsCounter, 5243 mSDsluCounter, 4537 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5243 SdHoareTripleChecker+Valid, 9076 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-08 07:56:02,952 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5243 Valid, 9076 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-08 07:56:02,955 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:56:02,976 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:56:02,979 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.5005296610169492) internal successors, (5666), 3776 states have internal predecessors, (5666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:02,982 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5666 transitions.
[2025-03-08 07:56:02,982 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5666 transitions. Word has length 1889
[2025-03-08 07:56:02,983 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:56:02,983 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5666 transitions.
[2025-03-08 07:56:02,983 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 472.25) internal successors, (1889), 4 states have internal predecessors, (1889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:02,983 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5666 transitions.
[2025-03-08 07:56:03,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1891
[2025-03-08 07:56:03,001 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:56:03,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-03-08 07:56:03,002 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-03-08 07:56:03,002 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:56:03,003 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:56:03,003 INFO  L85        PathProgramCache]: Analyzing trace with hash -1220114353, now seen corresponding path program 1 times
[2025-03-08 07:56:03,004 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:56:03,004 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235774035]
[2025-03-08 07:56:03,004 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:56:03,004 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:56:03,298 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1890 statements into 1 equivalence classes.
[2025-03-08 07:56:04,778 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1890 of 1890 statements.
[2025-03-08 07:56:04,779 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:56:04,779 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:56:07,171 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:56:07,171 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:56:07,171 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235774035]
[2025-03-08 07:56:07,171 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235774035] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:56:07,171 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:56:07,171 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:56:07,171 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93927598]
[2025-03-08 07:56:07,171 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:56:07,172 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:56:07,172 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:56:07,173 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:56:07,173 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:56:07,173 INFO  L87              Difference]: Start difference. First operand 3777 states and 5666 transitions. Second operand  has 4 states, 4 states have (on average 472.5) internal successors, (1890), 4 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:08,186 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:56:08,186 INFO  L93              Difference]: Finished difference Result 7324 states and 10988 transitions.
[2025-03-08 07:56:08,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:56:08,187 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 472.5) internal successors, (1890), 4 states have internal predecessors, (1890), 0 states have call successors, (0), 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 1890
[2025-03-08 07:56:08,187 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:56:08,192 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:56:08,192 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:56:08,195 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:56:08,195 INFO  L435           NwaCegarLoop]: 4538 mSDtfsCounter, 5195 mSDsluCounter, 4536 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5195 SdHoareTripleChecker+Valid, 9074 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2025-03-08 07:56:08,196 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5195 Valid, 9074 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2025-03-08 07:56:08,200 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:56:08,222 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:56:08,227 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.5002648305084745) internal successors, (5665), 3776 states have internal predecessors, (5665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:08,230 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5665 transitions.
[2025-03-08 07:56:08,231 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5665 transitions. Word has length 1890
[2025-03-08 07:56:08,231 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:56:08,231 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5665 transitions.
[2025-03-08 07:56:08,232 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 472.5) internal successors, (1890), 4 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:08,232 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5665 transitions.
[2025-03-08 07:56:08,248 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1892
[2025-03-08 07:56:08,248 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:56:08,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-08 07:56:08,249 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2025-03-08 07:56:08,250 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:56:08,251 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:56:08,252 INFO  L85        PathProgramCache]: Analyzing trace with hash 1209449464, now seen corresponding path program 1 times
[2025-03-08 07:56:08,252 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:56:08,252 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585919643]
[2025-03-08 07:56:08,252 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:56:08,252 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:56:08,506 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1891 statements into 1 equivalence classes.
[2025-03-08 07:56:09,142 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1891 of 1891 statements.
[2025-03-08 07:56:09,142 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:56:09,142 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:56:10,838 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:56:10,838 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:56:10,838 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585919643]
[2025-03-08 07:56:10,838 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585919643] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:56:10,838 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:56:10,838 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:56:10,838 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897605717]
[2025-03-08 07:56:10,838 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:56:10,839 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:56:10,839 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:56:10,840 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:56:10,840 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:56:10,841 INFO  L87              Difference]: Start difference. First operand 3777 states and 5665 transitions. Second operand  has 4 states, 4 states have (on average 472.75) internal successors, (1891), 4 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:11,771 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:56:11,772 INFO  L93              Difference]: Finished difference Result 7324 states and 10986 transitions.
[2025-03-08 07:56:11,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:56:11,772 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 472.75) internal successors, (1891), 4 states have internal predecessors, (1891), 0 states have call successors, (0), 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 1891
[2025-03-08 07:56:11,773 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:56:11,778 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:56:11,778 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:56:11,781 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:56:11,781 INFO  L435           NwaCegarLoop]: 4537 mSDtfsCounter, 5189 mSDsluCounter, 4535 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5189 SdHoareTripleChecker+Valid, 9072 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-08 07:56:11,782 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5189 Valid, 9072 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-08 07:56:11,785 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:56:11,810 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:56:11,814 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.5) internal successors, (5664), 3776 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:11,817 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5664 transitions.
[2025-03-08 07:56:11,818 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5664 transitions. Word has length 1891
[2025-03-08 07:56:11,818 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:56:11,818 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5664 transitions.
[2025-03-08 07:56:11,819 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 472.75) internal successors, (1891), 4 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:11,819 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5664 transitions.
[2025-03-08 07:56:11,835 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1893
[2025-03-08 07:56:11,835 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:56:11,836 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-03-08 07:56:11,836 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2025-03-08 07:56:11,836 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:56:11,837 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:56:11,838 INFO  L85        PathProgramCache]: Analyzing trace with hash -463874973, now seen corresponding path program 1 times
[2025-03-08 07:56:11,838 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:56:11,838 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006389308]
[2025-03-08 07:56:11,838 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:56:11,838 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:56:12,091 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1892 statements into 1 equivalence classes.
[2025-03-08 07:56:12,786 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1892 of 1892 statements.
[2025-03-08 07:56:12,786 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:56:12,786 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:56:14,493 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:56:14,493 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:56:14,493 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006389308]
[2025-03-08 07:56:14,493 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006389308] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:56:14,493 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:56:14,493 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:56:14,493 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690956547]
[2025-03-08 07:56:14,493 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:56:14,495 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:56:14,495 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:56:14,497 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:56:14,497 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:56:14,497 INFO  L87              Difference]: Start difference. First operand 3777 states and 5664 transitions. Second operand  has 4 states, 4 states have (on average 473.0) internal successors, (1892), 4 states have internal predecessors, (1892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:15,664 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:56:15,664 INFO  L93              Difference]: Finished difference Result 7324 states and 10984 transitions.
[2025-03-08 07:56:15,665 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:56:15,665 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 473.0) internal successors, (1892), 4 states have internal predecessors, (1892), 0 states have call successors, (0), 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 1892
[2025-03-08 07:56:15,666 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:56:15,670 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:56:15,670 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:56:15,674 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:56:15,674 INFO  L435           NwaCegarLoop]: 4536 mSDtfsCounter, 5141 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5141 SdHoareTripleChecker+Valid, 9070 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2025-03-08 07:56:15,674 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5141 Valid, 9070 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2025-03-08 07:56:15,678 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:56:15,709 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:56:15,712 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.4997351694915255) internal successors, (5663), 3776 states have internal predecessors, (5663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:15,716 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5663 transitions.
[2025-03-08 07:56:15,717 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5663 transitions. Word has length 1892
[2025-03-08 07:56:15,717 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:56:15,717 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5663 transitions.
[2025-03-08 07:56:15,718 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 473.0) internal successors, (1892), 4 states have internal predecessors, (1892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:15,718 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5663 transitions.
[2025-03-08 07:56:15,751 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1894
[2025-03-08 07:56:15,751 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:56:15,752 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-03-08 07:56:15,753 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2025-03-08 07:56:15,753 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:56:15,754 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:56:15,754 INFO  L85        PathProgramCache]: Analyzing trace with hash 1624234563, now seen corresponding path program 1 times
[2025-03-08 07:56:15,754 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:56:15,754 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92106054]
[2025-03-08 07:56:15,755 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:56:15,755 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:56:16,052 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1893 statements into 1 equivalence classes.
[2025-03-08 07:56:16,817 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1893 of 1893 statements.
[2025-03-08 07:56:16,817 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:56:16,817 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:56:18,582 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:56:18,582 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:56:18,582 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92106054]
[2025-03-08 07:56:18,582 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92106054] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:56:18,582 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:56:18,582 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:56:18,582 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505017791]
[2025-03-08 07:56:18,582 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:56:18,583 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:56:18,583 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:56:18,584 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:56:18,584 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:56:18,585 INFO  L87              Difference]: Start difference. First operand 3777 states and 5663 transitions. Second operand  has 4 states, 4 states have (on average 473.25) internal successors, (1893), 4 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:19,523 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:56:19,523 INFO  L93              Difference]: Finished difference Result 7324 states and 10982 transitions.
[2025-03-08 07:56:19,523 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:56:19,524 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 473.25) internal successors, (1893), 4 states have internal predecessors, (1893), 0 states have call successors, (0), 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 1893
[2025-03-08 07:56:19,524 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:56:19,528 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:56:19,528 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:56:19,531 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:56:19,531 INFO  L435           NwaCegarLoop]: 4535 mSDtfsCounter, 5135 mSDsluCounter, 4533 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5135 SdHoareTripleChecker+Valid, 9068 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-08 07:56:19,532 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5135 Valid, 9068 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-08 07:56:19,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:56:19,556 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:56:19,559 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.4994703389830508) internal successors, (5662), 3776 states have internal predecessors, (5662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:19,562 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5662 transitions.
[2025-03-08 07:56:19,563 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5662 transitions. Word has length 1893
[2025-03-08 07:56:19,563 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:56:19,563 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5662 transitions.
[2025-03-08 07:56:19,564 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 473.25) internal successors, (1893), 4 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:19,564 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5662 transitions.
[2025-03-08 07:56:19,580 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1895
[2025-03-08 07:56:19,580 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:56:19,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-03-08 07:56:19,581 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2025-03-08 07:56:19,581 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:56:19,582 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:56:19,583 INFO  L85        PathProgramCache]: Analyzing trace with hash 1576258647, now seen corresponding path program 1 times
[2025-03-08 07:56:19,583 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:56:19,583 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682565998]
[2025-03-08 07:56:19,583 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:56:19,583 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:56:19,820 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1894 statements into 1 equivalence classes.
[2025-03-08 07:56:20,427 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1894 of 1894 statements.
[2025-03-08 07:56:20,427 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:56:20,427 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:56:21,895 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:56:21,895 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:56:21,895 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682565998]
[2025-03-08 07:56:21,895 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682565998] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:56:21,895 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:56:21,895 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:56:21,895 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518104959]
[2025-03-08 07:56:21,895 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:56:21,896 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:56:21,896 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:56:21,897 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:56:21,897 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:56:21,897 INFO  L87              Difference]: Start difference. First operand 3777 states and 5662 transitions. Second operand  has 4 states, 4 states have (on average 473.5) internal successors, (1894), 4 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:22,862 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:56:22,862 INFO  L93              Difference]: Finished difference Result 7324 states and 10980 transitions.
[2025-03-08 07:56:22,862 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:56:22,863 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 473.5) internal successors, (1894), 4 states have internal predecessors, (1894), 0 states have call successors, (0), 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 1894
[2025-03-08 07:56:22,863 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:56:22,866 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:56:22,866 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:56:22,869 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:56:22,869 INFO  L435           NwaCegarLoop]: 4534 mSDtfsCounter, 5087 mSDsluCounter, 4532 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5087 SdHoareTripleChecker+Valid, 9066 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-08 07:56:22,869 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5087 Valid, 9066 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-08 07:56:22,872 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:56:22,892 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:56:22,895 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.4992055084745763) internal successors, (5661), 3776 states have internal predecessors, (5661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:22,898 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5661 transitions.
[2025-03-08 07:56:22,898 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5661 transitions. Word has length 1894
[2025-03-08 07:56:22,898 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:56:22,898 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5661 transitions.
[2025-03-08 07:56:22,899 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 473.5) internal successors, (1894), 4 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:22,899 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5661 transitions.
[2025-03-08 07:56:22,915 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1896
[2025-03-08 07:56:22,915 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:56:22,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-08 07:56:22,917 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2025-03-08 07:56:22,917 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:56:22,918 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:56:22,918 INFO  L85        PathProgramCache]: Analyzing trace with hash -1084912018, now seen corresponding path program 1 times
[2025-03-08 07:56:22,918 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:56:22,918 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212186501]
[2025-03-08 07:56:22,918 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:56:22,918 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:56:23,158 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1895 statements into 1 equivalence classes.
[2025-03-08 07:56:23,836 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1895 of 1895 statements.
[2025-03-08 07:56:23,836 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:56:23,836 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:56:25,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:56:25,337 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:56:25,337 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212186501]
[2025-03-08 07:56:25,338 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212186501] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:56:25,338 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:56:25,338 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:56:25,338 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365207881]
[2025-03-08 07:56:25,338 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:56:25,339 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:56:25,339 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:56:25,340 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:56:25,340 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:56:25,340 INFO  L87              Difference]: Start difference. First operand 3777 states and 5661 transitions. Second operand  has 4 states, 4 states have (on average 473.75) internal successors, (1895), 4 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:26,285 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:56:26,286 INFO  L93              Difference]: Finished difference Result 7324 states and 10978 transitions.
[2025-03-08 07:56:26,286 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:56:26,286 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 473.75) internal successors, (1895), 4 states have internal predecessors, (1895), 0 states have call successors, (0), 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 1895
[2025-03-08 07:56:26,287 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:56:26,289 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:56:26,289 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:56:26,292 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:56:26,292 INFO  L435           NwaCegarLoop]: 4533 mSDtfsCounter, 5081 mSDsluCounter, 4531 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5081 SdHoareTripleChecker+Valid, 9064 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-08 07:56:26,292 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5081 Valid, 9064 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-08 07:56:26,295 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:56:26,315 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:56:26,317 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.4989406779661016) internal successors, (5660), 3776 states have internal predecessors, (5660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:26,320 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5660 transitions.
[2025-03-08 07:56:26,320 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5660 transitions. Word has length 1895
[2025-03-08 07:56:26,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:56:26,321 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5660 transitions.
[2025-03-08 07:56:26,321 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 473.75) internal successors, (1895), 4 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:26,321 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5660 transitions.
[2025-03-08 07:56:26,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1897
[2025-03-08 07:56:26,337 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:56:26,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-03-08 07:56:26,338 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2025-03-08 07:56:26,338 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:56:26,339 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:56:26,339 INFO  L85        PathProgramCache]: Analyzing trace with hash 1483010091, now seen corresponding path program 1 times
[2025-03-08 07:56:26,339 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:56:26,339 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763884894]
[2025-03-08 07:56:26,340 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:56:26,340 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:56:26,579 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1896 statements into 1 equivalence classes.
[2025-03-08 07:56:27,196 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1896 of 1896 statements.
[2025-03-08 07:56:27,196 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:56:27,196 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:56:28,701 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:56:28,702 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:56:28,702 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763884894]
[2025-03-08 07:56:28,702 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763884894] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:56:28,702 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:56:28,702 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:56:28,702 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823447771]
[2025-03-08 07:56:28,702 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:56:28,703 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:56:28,703 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:56:28,704 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:56:28,704 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:56:28,704 INFO  L87              Difference]: Start difference. First operand 3777 states and 5660 transitions. Second operand  has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:29,595 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 07:56:29,595 INFO  L93              Difference]: Finished difference Result 7324 states and 10976 transitions.
[2025-03-08 07:56:29,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 07:56:29,596 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 0 states have call successors, (0), 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 1896
[2025-03-08 07:56:29,597 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 07:56:29,599 INFO  L225             Difference]: With dead ends: 7324
[2025-03-08 07:56:29,599 INFO  L226             Difference]: Without dead ends: 3777
[2025-03-08 07:56:29,602 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 07:56:29,602 INFO  L435           NwaCegarLoop]: 4532 mSDtfsCounter, 5033 mSDsluCounter, 4530 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 9062 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2025-03-08 07:56:29,603 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 9062 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2025-03-08 07:56:29,605 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3777 states.
[2025-03-08 07:56:29,627 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3777.
[2025-03-08 07:56:29,630 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3777 states, 3776 states have (on average 1.4986758474576272) internal successors, (5659), 3776 states have internal predecessors, (5659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:29,632 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5659 transitions.
[2025-03-08 07:56:29,633 INFO  L78                 Accepts]: Start accepts. Automaton has 3777 states and 5659 transitions. Word has length 1896
[2025-03-08 07:56:29,633 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 07:56:29,633 INFO  L471      AbstractCegarLoop]: Abstraction has 3777 states and 5659 transitions.
[2025-03-08 07:56:29,634 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 07:56:29,634 INFO  L276                IsEmpty]: Start isEmpty. Operand 3777 states and 5659 transitions.
[2025-03-08 07:56:29,650 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1898
[2025-03-08 07:56:29,650 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 07:56:29,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-03-08 07:56:29,651 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2025-03-08 07:56:29,651 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 07:56:29,653 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 07:56:29,653 INFO  L85        PathProgramCache]: Analyzing trace with hash 1485326457, now seen corresponding path program 1 times
[2025-03-08 07:56:29,653 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 07:56:29,654 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671716795]
[2025-03-08 07:56:29,654 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 07:56:29,654 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 07:56:29,902 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1897 statements into 1 equivalence classes.
[2025-03-08 07:56:30,578 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1897 of 1897 statements.
[2025-03-08 07:56:30,578 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 07:56:30,578 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 07:56:32,100 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 07:56:32,100 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 07:56:32,100 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671716795]
[2025-03-08 07:56:32,101 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671716795] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 07:56:32,101 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 07:56:32,101 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 07:56:32,101 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720031230]
[2025-03-08 07:56:32,101 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 07:56:32,102 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 07:56:32,102 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 07:56:32,103 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 07:56:32,103 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 07:56:32,103 INFO  L87              Difference]: Start difference. First operand 3777 states and 5659 transitions. Second operand  has 4 states, 4 states have (on average 474.25) internal successors, (1897), 4 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)