./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.2.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 798a7b37
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.2.prop1-back-serstep.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 87b63b5e380bb6db7d619c72eb4f386dd2a151898d57957012363e2c778901d8
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-798a7b3-m
[2025-03-03 18:09:22,467 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-03 18:09:22,526 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-03 18:09:22,531 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-03 18:09:22,532 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-03 18:09:22,552 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-03 18:09:22,554 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-03 18:09:22,554 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-03 18:09:22,554 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-03 18:09:22,554 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-03 18:09:22,555 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-03 18:09:22,555 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-03 18:09:22,555 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-03 18:09:22,555 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-03 18:09:22,555 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-03 18:09:22,555 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-03 18:09:22,555 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-03 18:09:22,556 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-03 18:09:22,556 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-03 18:09:22,556 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-03 18:09:22,556 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-03 18:09:22,557 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-03 18:09:22,557 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-03 18:09:22,557 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-03 18:09:22,557 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-03 18:09:22,558 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 18:09:22,558 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-03 18:09:22,558 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-03 18:09:22,558 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 -> 87b63b5e380bb6db7d619c72eb4f386dd2a151898d57957012363e2c778901d8
[2025-03-03 18:09:22,814 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-03 18:09:22,824 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-03 18:09:22,825 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-03 18:09:22,826 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-03 18:09:22,826 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-03 18:09:22,829 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.2.prop1-back-serstep.c
[2025-03-03 18:09:24,009 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b149b68e0/2a3bcc9c495f40109f87eea336c7a9ed/FLAGe2397ecb2
[2025-03-03 18:09:24,314 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-03 18:09:24,316 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.2.prop1-back-serstep.c
[2025-03-03 18:09:24,331 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b149b68e0/2a3bcc9c495f40109f87eea336c7a9ed/FLAGe2397ecb2
[2025-03-03 18:09:24,349 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b149b68e0/2a3bcc9c495f40109f87eea336c7a9ed
[2025-03-03 18:09:24,351 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-03 18:09:24,353 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-03 18:09:24,354 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-03 18:09:24,354 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-03 18:09:24,358 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-03 18:09:24,359 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:24,360 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ce57e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24, skipping insertion in model container
[2025-03-03 18:09:24,361 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:24,402 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-03 18:09:24,521 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.protocols.2.prop1-back-serstep.c[1177,1190]
[2025-03-03 18:09:24,736 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 18:09:24,744 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-03 18:09:24,750 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.protocols.2.prop1-back-serstep.c[1177,1190]
[2025-03-03 18:09:24,848 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 18:09:24,859 INFO  L204         MainTranslator]: Completed translation
[2025-03-03 18:09:24,860 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24 WrapperNode
[2025-03-03 18:09:24,860 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-03 18:09:24,861 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-03 18:09:24,861 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-03 18:09:24,861 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-03 18:09:24,866 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:24,904 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,302 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4590
[2025-03-03 18:09:25,303 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-03 18:09:25,304 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-03 18:09:25,304 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-03 18:09:25,304 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-03 18:09:25,310 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,310 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,415 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,507 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2025-03-03 18:09:25,508 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,508 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,653 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,668 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,686 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,706 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,781 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-03 18:09:25,784 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-03 18:09:25,784 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-03 18:09:25,784 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-03 18:09:25,787 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (1/1) ...
[2025-03-03 18:09:25,796 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 18:09:25,838 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:09:25,866 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-03-03 18:09:25,879 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-03-03 18:09:25,918 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-03 18:09:25,918 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-03 18:09:25,918 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-03 18:09:25,918 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-03 18:09:26,167 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-03 18:09:26,168 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-03 18:09:29,907 INFO  L?                        ?]: Removed 2465 outVars from TransFormulas that were not future-live.
[2025-03-03 18:09:29,907 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-03 18:09:30,036 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-03 18:09:30,037 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-03 18:09:30,037 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 06:09:30 BoogieIcfgContainer
[2025-03-03 18:09:30,037 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-03 18:09:30,039 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-03 18:09:30,039 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-03 18:09:30,043 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-03 18:09:30,043 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 06:09:24" (1/3) ...
[2025-03-03 18:09:30,043 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6603c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:09:30, skipping insertion in model container
[2025-03-03 18:09:30,043 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:09:24" (2/3) ...
[2025-03-03 18:09:30,044 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6603c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:09:30, skipping insertion in model container
[2025-03-03 18:09:30,044 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 06:09:30" (3/3) ...
[2025-03-03 18:09:30,044 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.protocols.2.prop1-back-serstep.c
[2025-03-03 18:09:30,056 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-03 18:09:30,057 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.protocols.2.prop1-back-serstep.c that has 1 procedures, 1594 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-03 18:09:30,132 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-03 18:09:30,144 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;@54925002, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-03 18:09:30,144 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-03 18:09:30,153 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1594 states, 1592 states have (on average 1.4993718592964824) internal successors, (2387), 1593 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:30,164 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 208
[2025-03-03 18:09:30,164 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:30,165 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:30,165 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:30,169 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:30,170 INFO  L85        PathProgramCache]: Analyzing trace with hash 1193728906, now seen corresponding path program 1 times
[2025-03-03 18:09:30,175 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:30,175 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486727902]
[2025-03-03 18:09:30,175 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:30,176 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:30,272 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes.
[2025-03-03 18:09:30,477 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements.
[2025-03-03 18:09:30,478 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:30,478 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:31,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:09:31,335 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:31,335 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486727902]
[2025-03-03 18:09:31,336 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486727902] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:31,336 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:31,336 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:09:31,338 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075296510]
[2025-03-03 18:09:31,338 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:31,342 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:09:31,342 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:31,359 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:09:31,360 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:31,363 INFO  L87              Difference]: Start difference. First operand  has 1594 states, 1592 states have (on average 1.4993718592964824) internal successors, (2387), 1593 states have internal predecessors, (2387), 0 states have call successors, (0), 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 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:32,182 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:32,182 INFO  L93              Difference]: Finished difference Result 3073 states and 4605 transitions.
[2025-03-03 18:09:32,183 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:09:32,184 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207
[2025-03-03 18:09:32,185 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:32,200 INFO  L225             Difference]: With dead ends: 3073
[2025-03-03 18:09:32,201 INFO  L226             Difference]: Without dead ends: 1593
[2025-03-03 18:09:32,209 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:32,212 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 3965 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5950 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:32,213 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5950 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2025-03-03 18:09:32,230 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1593 states.
[2025-03-03 18:09:32,288 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1593.
[2025-03-03 18:09:32,292 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1593 states, 1592 states have (on average 1.4981155778894473) internal successors, (2385), 1592 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:32,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2385 transitions.
[2025-03-03 18:09:32,301 INFO  L78                 Accepts]: Start accepts. Automaton has 1593 states and 2385 transitions. Word has length 207
[2025-03-03 18:09:32,302 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:32,302 INFO  L471      AbstractCegarLoop]: Abstraction has 1593 states and 2385 transitions.
[2025-03-03 18:09:32,302 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:32,302 INFO  L276                IsEmpty]: Start isEmpty. Operand 1593 states and 2385 transitions.
[2025-03-03 18:09:32,305 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 209
[2025-03-03 18:09:32,305 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:32,305 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:32,306 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-03 18:09:32,306 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:32,307 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:32,307 INFO  L85        PathProgramCache]: Analyzing trace with hash -1644428368, now seen corresponding path program 1 times
[2025-03-03 18:09:32,308 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:32,308 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607410278]
[2025-03-03 18:09:32,308 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:32,308 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:32,352 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes.
[2025-03-03 18:09:32,409 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements.
[2025-03-03 18:09:32,409 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:32,409 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:32,712 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:09:32,712 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:32,712 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607410278]
[2025-03-03 18:09:32,712 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607410278] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:32,712 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:32,712 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:09:32,713 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435473309]
[2025-03-03 18:09:32,713 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:32,713 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:09:32,713 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:32,714 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:09:32,714 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:32,714 INFO  L87              Difference]: Start difference. First operand 1593 states and 2385 transitions. Second operand  has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:33,330 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:33,330 INFO  L93              Difference]: Finished difference Result 3074 states and 4603 transitions.
[2025-03-03 18:09:33,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:09:33,330 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 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 208
[2025-03-03 18:09:33,331 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:33,336 INFO  L225             Difference]: With dead ends: 3074
[2025-03-03 18:09:33,337 INFO  L226             Difference]: Without dead ends: 1595
[2025-03-03 18:09:33,338 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:33,339 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:33,340 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5947 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2025-03-03 18:09:33,342 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1595 states.
[2025-03-03 18:09:33,361 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1595.
[2025-03-03 18:09:33,363 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1595 states, 1594 states have (on average 1.497490589711418) internal successors, (2387), 1594 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:33,367 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2387 transitions.
[2025-03-03 18:09:33,368 INFO  L78                 Accepts]: Start accepts. Automaton has 1595 states and 2387 transitions. Word has length 208
[2025-03-03 18:09:33,368 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:33,368 INFO  L471      AbstractCegarLoop]: Abstraction has 1595 states and 2387 transitions.
[2025-03-03 18:09:33,369 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:33,369 INFO  L276                IsEmpty]: Start isEmpty. Operand 1595 states and 2387 transitions.
[2025-03-03 18:09:33,370 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2025-03-03 18:09:33,371 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:33,371 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:33,371 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-03 18:09:33,371 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:33,372 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:33,374 INFO  L85        PathProgramCache]: Analyzing trace with hash -1801127867, now seen corresponding path program 1 times
[2025-03-03 18:09:33,374 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:33,374 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445899378]
[2025-03-03 18:09:33,374 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:33,374 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:33,415 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes.
[2025-03-03 18:09:33,458 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements.
[2025-03-03 18:09:33,460 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:33,460 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:33,747 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:09:33,747 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:33,747 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445899378]
[2025-03-03 18:09:33,747 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445899378] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:33,747 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:33,747 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 18:09:33,747 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785455910]
[2025-03-03 18:09:33,748 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:33,748 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 18:09:33,748 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:33,749 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 18:09:33,749 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:09:33,749 INFO  L87              Difference]: Start difference. First operand 1595 states and 2387 transitions. Second operand  has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:34,689 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:34,689 INFO  L93              Difference]: Finished difference Result 4539 states and 6796 transitions.
[2025-03-03 18:09:34,690 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-03 18:09:34,690 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 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 209
[2025-03-03 18:09:34,691 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:34,700 INFO  L225             Difference]: With dead ends: 4539
[2025-03-03 18:09:34,700 INFO  L226             Difference]: Without dead ends: 3058
[2025-03-03 18:09:34,703 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-03-03 18:09:34,704 INFO  L435           NwaCegarLoop]: 1983 mSDtfsCounter, 2160 mSDsluCounter, 5803 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 7786 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:34,704 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 7786 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-03 18:09:34,707 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3058 states.
[2025-03-03 18:09:34,734 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 1881.
[2025-03-03 18:09:34,737 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1881 states, 1880 states have (on average 1.497340425531915) internal successors, (2815), 1880 states have internal predecessors, (2815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:34,742 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2815 transitions.
[2025-03-03 18:09:34,743 INFO  L78                 Accepts]: Start accepts. Automaton has 1881 states and 2815 transitions. Word has length 209
[2025-03-03 18:09:34,743 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:34,743 INFO  L471      AbstractCegarLoop]: Abstraction has 1881 states and 2815 transitions.
[2025-03-03 18:09:34,743 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:34,743 INFO  L276                IsEmpty]: Start isEmpty. Operand 1881 states and 2815 transitions.
[2025-03-03 18:09:34,789 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 949
[2025-03-03 18:09:34,789 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:34,790 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:34,790 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-03 18:09:34,790 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:34,791 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:34,791 INFO  L85        PathProgramCache]: Analyzing trace with hash -612457207, now seen corresponding path program 1 times
[2025-03-03 18:09:34,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:34,791 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930126314]
[2025-03-03 18:09:34,792 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:34,792 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:34,879 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 948 statements into 1 equivalence classes.
[2025-03-03 18:09:35,131 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 948 of 948 statements.
[2025-03-03 18:09:35,131 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:35,131 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:36,647 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked.
[2025-03-03 18:09:36,649 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:36,650 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930126314]
[2025-03-03 18:09:36,650 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930126314] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:36,650 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:36,650 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 18:09:36,650 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587621974]
[2025-03-03 18:09:36,650 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:36,651 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 18:09:36,651 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:36,652 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 18:09:36,652 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:09:36,653 INFO  L87              Difference]: Start difference. First operand 1881 states and 2815 transitions. Second operand  has 5 states, 5 states have (on average 161.4) internal successors, (807), 5 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:37,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:37,306 INFO  L93              Difference]: Finished difference Result 3366 states and 5037 transitions.
[2025-03-03 18:09:37,306 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:09:37,307 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 161.4) internal successors, (807), 5 states have internal predecessors, (807), 0 states have call successors, (0), 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 948
[2025-03-03 18:09:37,308 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:37,315 INFO  L225             Difference]: With dead ends: 3366
[2025-03-03 18:09:37,315 INFO  L226             Difference]: Without dead ends: 1885
[2025-03-03 18:09:37,317 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:09:37,318 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:37,318 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5947 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2025-03-03 18:09:37,320 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1885 states.
[2025-03-03 18:09:37,349 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1881.
[2025-03-03 18:09:37,352 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1881 states, 1880 states have (on average 1.497340425531915) internal successors, (2815), 1880 states have internal predecessors, (2815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:37,358 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2815 transitions.
[2025-03-03 18:09:37,358 INFO  L78                 Accepts]: Start accepts. Automaton has 1881 states and 2815 transitions. Word has length 948
[2025-03-03 18:09:37,359 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:37,359 INFO  L471      AbstractCegarLoop]: Abstraction has 1881 states and 2815 transitions.
[2025-03-03 18:09:37,360 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 161.4) internal successors, (807), 5 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:37,360 INFO  L276                IsEmpty]: Start isEmpty. Operand 1881 states and 2815 transitions.
[2025-03-03 18:09:37,382 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 950
[2025-03-03 18:09:37,383 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:37,383 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:37,383 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-03 18:09:37,384 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:37,384 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:37,385 INFO  L85        PathProgramCache]: Analyzing trace with hash 82060337, now seen corresponding path program 1 times
[2025-03-03 18:09:37,385 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:37,385 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875939428]
[2025-03-03 18:09:37,385 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:37,385 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:37,525 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 949 statements into 1 equivalence classes.
[2025-03-03 18:09:37,790 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 949 of 949 statements.
[2025-03-03 18:09:37,790 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:37,790 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:38,922 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked.
[2025-03-03 18:09:38,925 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:38,925 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875939428]
[2025-03-03 18:09:38,925 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875939428] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:38,925 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:38,926 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:09:38,926 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406270881]
[2025-03-03 18:09:38,926 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:38,927 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:09:38,927 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:38,927 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:09:38,927 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:38,928 INFO  L87              Difference]: Start difference. First operand 1881 states and 2815 transitions. Second operand  has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:39,519 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:39,519 INFO  L93              Difference]: Finished difference Result 3370 states and 5043 transitions.
[2025-03-03 18:09:39,519 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:09:39,520 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 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 949
[2025-03-03 18:09:39,521 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:39,525 INFO  L225             Difference]: With dead ends: 3370
[2025-03-03 18:09:39,525 INFO  L226             Difference]: Without dead ends: 1885
[2025-03-03 18:09:39,527 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:39,527 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:39,528 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5947 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2025-03-03 18:09:39,529 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1885 states.
[2025-03-03 18:09:39,546 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1883.
[2025-03-03 18:09:39,549 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1883 states, 1882 states have (on average 1.4968119022316684) internal successors, (2817), 1882 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:39,553 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1883 states to 1883 states and 2817 transitions.
[2025-03-03 18:09:39,553 INFO  L78                 Accepts]: Start accepts. Automaton has 1883 states and 2817 transitions. Word has length 949
[2025-03-03 18:09:39,554 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:39,554 INFO  L471      AbstractCegarLoop]: Abstraction has 1883 states and 2817 transitions.
[2025-03-03 18:09:39,555 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:39,555 INFO  L276                IsEmpty]: Start isEmpty. Operand 1883 states and 2817 transitions.
[2025-03-03 18:09:39,560 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 951
[2025-03-03 18:09:39,561 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:39,561 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:39,561 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-03 18:09:39,561 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:39,562 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:39,562 INFO  L85        PathProgramCache]: Analyzing trace with hash -1051297340, now seen corresponding path program 1 times
[2025-03-03 18:09:39,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:39,562 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177794732]
[2025-03-03 18:09:39,562 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:39,562 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:39,646 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 950 statements into 1 equivalence classes.
[2025-03-03 18:09:39,842 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 950 of 950 statements.
[2025-03-03 18:09:39,843 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:39,843 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:40,771 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked.
[2025-03-03 18:09:40,772 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:40,772 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177794732]
[2025-03-03 18:09:40,772 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177794732] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:40,772 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:40,772 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:09:40,772 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066067668]
[2025-03-03 18:09:40,772 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:40,773 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:09:40,773 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:40,774 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:09:40,774 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:40,775 INFO  L87              Difference]: Start difference. First operand 1883 states and 2817 transitions. Second operand  has 4 states, 4 states have (on average 203.25) internal successors, (813), 4 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:41,383 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:41,384 INFO  L93              Difference]: Finished difference Result 3378 states and 5053 transitions.
[2025-03-03 18:09:41,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:09:41,385 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 203.25) internal successors, (813), 4 states have internal predecessors, (813), 0 states have call successors, (0), 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 950
[2025-03-03 18:09:41,387 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:41,392 INFO  L225             Difference]: With dead ends: 3378
[2025-03-03 18:09:41,392 INFO  L226             Difference]: Without dead ends: 1887
[2025-03-03 18:09:41,394 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:41,396 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:41,397 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5947 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2025-03-03 18:09:41,400 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1887 states.
[2025-03-03 18:09:41,426 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1885.
[2025-03-03 18:09:41,429 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1885 states, 1884 states have (on average 1.496284501061571) internal successors, (2819), 1884 states have internal predecessors, (2819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:41,433 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2819 transitions.
[2025-03-03 18:09:41,434 INFO  L78                 Accepts]: Start accepts. Automaton has 1885 states and 2819 transitions. Word has length 950
[2025-03-03 18:09:41,435 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:41,435 INFO  L471      AbstractCegarLoop]: Abstraction has 1885 states and 2819 transitions.
[2025-03-03 18:09:41,435 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 203.25) internal successors, (813), 4 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:41,435 INFO  L276                IsEmpty]: Start isEmpty. Operand 1885 states and 2819 transitions.
[2025-03-03 18:09:41,447 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 952
[2025-03-03 18:09:41,447 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:41,447 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:41,447 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-03-03 18:09:41,448 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:41,448 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:41,448 INFO  L85        PathProgramCache]: Analyzing trace with hash 1637976310, now seen corresponding path program 1 times
[2025-03-03 18:09:41,449 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:41,449 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620957641]
[2025-03-03 18:09:41,449 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:41,449 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:41,571 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 951 statements into 1 equivalence classes.
[2025-03-03 18:09:41,792 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 951 of 951 statements.
[2025-03-03 18:09:41,792 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:41,793 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:42,645 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked.
[2025-03-03 18:09:42,645 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:42,645 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620957641]
[2025-03-03 18:09:42,645 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620957641] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:42,646 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:42,646 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 18:09:42,646 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099706602]
[2025-03-03 18:09:42,646 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:42,647 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 18:09:42,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:42,647 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 18:09:42,648 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:09:42,648 INFO  L87              Difference]: Start difference. First operand 1885 states and 2819 transitions. Second operand  has 5 states, 5 states have (on average 163.2) internal successors, (816), 5 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:43,320 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:43,320 INFO  L93              Difference]: Finished difference Result 3386 states and 5063 transitions.
[2025-03-03 18:09:43,320 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:09:43,321 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 163.2) internal successors, (816), 5 states have internal predecessors, (816), 0 states have call successors, (0), 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 951
[2025-03-03 18:09:43,322 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:43,326 INFO  L225             Difference]: With dead ends: 3386
[2025-03-03 18:09:43,326 INFO  L226             Difference]: Without dead ends: 1889
[2025-03-03 18:09:43,327 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:09:43,329 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 5942 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7927 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:43,329 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7927 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1604 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2025-03-03 18:09:43,332 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1889 states.
[2025-03-03 18:09:43,348 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1887.
[2025-03-03 18:09:43,351 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1887 states, 1886 states have (on average 1.4957582184517497) internal successors, (2821), 1886 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:43,353 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2821 transitions.
[2025-03-03 18:09:43,353 INFO  L78                 Accepts]: Start accepts. Automaton has 1887 states and 2821 transitions. Word has length 951
[2025-03-03 18:09:43,354 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:43,354 INFO  L471      AbstractCegarLoop]: Abstraction has 1887 states and 2821 transitions.
[2025-03-03 18:09:43,355 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 163.2) internal successors, (816), 5 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:43,355 INFO  L276                IsEmpty]: Start isEmpty. Operand 1887 states and 2821 transitions.
[2025-03-03 18:09:43,360 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 953
[2025-03-03 18:09:43,361 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:43,361 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:43,361 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-03-03 18:09:43,362 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:43,362 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:43,363 INFO  L85        PathProgramCache]: Analyzing trace with hash 1612601215, now seen corresponding path program 1 times
[2025-03-03 18:09:43,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:43,363 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323240825]
[2025-03-03 18:09:43,363 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:43,363 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:43,450 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 952 statements into 1 equivalence classes.
[2025-03-03 18:09:43,630 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 952 of 952 statements.
[2025-03-03 18:09:43,631 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:43,631 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:44,440 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked.
[2025-03-03 18:09:44,440 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:44,440 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323240825]
[2025-03-03 18:09:44,441 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323240825] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:44,441 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:44,441 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:09:44,441 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893260480]
[2025-03-03 18:09:44,441 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:44,442 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:09:44,442 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:44,442 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:09:44,442 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:44,443 INFO  L87              Difference]: Start difference. First operand 1887 states and 2821 transitions. Second operand  has 4 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:44,919 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:44,919 INFO  L93              Difference]: Finished difference Result 3394 states and 5073 transitions.
[2025-03-03 18:09:44,922 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:09:44,923 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 0 states have call successors, (0), 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 952
[2025-03-03 18:09:44,924 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:44,928 INFO  L225             Difference]: With dead ends: 3394
[2025-03-03 18:09:44,928 INFO  L226             Difference]: Without dead ends: 1891
[2025-03-03 18:09:44,933 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:44,934 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:44,934 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5947 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2025-03-03 18:09:44,936 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1891 states.
[2025-03-03 18:09:44,950 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1889.
[2025-03-03 18:09:44,953 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1889 states, 1888 states have (on average 1.4952330508474576) internal successors, (2823), 1888 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:44,955 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2823 transitions.
[2025-03-03 18:09:44,955 INFO  L78                 Accepts]: Start accepts. Automaton has 1889 states and 2823 transitions. Word has length 952
[2025-03-03 18:09:44,956 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:44,956 INFO  L471      AbstractCegarLoop]: Abstraction has 1889 states and 2823 transitions.
[2025-03-03 18:09:44,956 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:44,956 INFO  L276                IsEmpty]: Start isEmpty. Operand 1889 states and 2823 transitions.
[2025-03-03 18:09:44,962 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 954
[2025-03-03 18:09:44,962 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:44,963 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:44,963 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-03-03 18:09:44,963 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:44,964 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:44,964 INFO  L85        PathProgramCache]: Analyzing trace with hash -701109061, now seen corresponding path program 1 times
[2025-03-03 18:09:44,964 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:44,964 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738546885]
[2025-03-03 18:09:44,964 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:44,964 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:45,045 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 953 statements into 1 equivalence classes.
[2025-03-03 18:09:45,229 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 953 of 953 statements.
[2025-03-03 18:09:45,230 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:45,230 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:46,211 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked.
[2025-03-03 18:09:46,211 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:46,211 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738546885]
[2025-03-03 18:09:46,211 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738546885] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:46,211 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:46,211 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:09:46,211 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294159857]
[2025-03-03 18:09:46,212 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:46,212 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:09:46,212 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:46,213 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:09:46,213 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:46,213 INFO  L87              Difference]: Start difference. First operand 1889 states and 2823 transitions. Second operand  has 4 states, 4 states have (on average 205.5) internal successors, (822), 4 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:46,630 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:46,630 INFO  L93              Difference]: Finished difference Result 3402 states and 5083 transitions.
[2025-03-03 18:09:46,630 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:09:46,630 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 205.5) internal successors, (822), 4 states have internal predecessors, (822), 0 states have call successors, (0), 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 953
[2025-03-03 18:09:46,631 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:46,634 INFO  L225             Difference]: With dead ends: 3402
[2025-03-03 18:09:46,635 INFO  L226             Difference]: Without dead ends: 1893
[2025-03-03 18:09:46,636 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:09:46,636 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:46,636 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5947 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-03-03 18:09:46,638 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1893 states.
[2025-03-03 18:09:46,650 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1891.
[2025-03-03 18:09:46,652 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1891 states, 1890 states have (on average 1.4947089947089947) internal successors, (2825), 1890 states have internal predecessors, (2825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:46,654 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2825 transitions.
[2025-03-03 18:09:46,654 INFO  L78                 Accepts]: Start accepts. Automaton has 1891 states and 2825 transitions. Word has length 953
[2025-03-03 18:09:46,655 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:46,655 INFO  L471      AbstractCegarLoop]: Abstraction has 1891 states and 2825 transitions.
[2025-03-03 18:09:46,655 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 205.5) internal successors, (822), 4 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:46,656 INFO  L276                IsEmpty]: Start isEmpty. Operand 1891 states and 2825 transitions.
[2025-03-03 18:09:46,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 955
[2025-03-03 18:09:46,662 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:46,663 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:46,663 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-03-03 18:09:46,663 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:46,666 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:46,666 INFO  L85        PathProgramCache]: Analyzing trace with hash -427807174, now seen corresponding path program 1 times
[2025-03-03 18:09:46,666 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:46,666 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329110003]
[2025-03-03 18:09:46,666 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:46,666 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:46,738 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 954 statements into 1 equivalence classes.
[2025-03-03 18:09:47,184 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 954 of 954 statements.
[2025-03-03 18:09:47,185 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:47,185 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:48,217 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 70 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked.
[2025-03-03 18:09:48,218 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:48,218 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329110003]
[2025-03-03 18:09:48,218 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329110003] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 18:09:48,218 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188685732]
[2025-03-03 18:09:48,218 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:48,218 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:09:48,219 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:09:48,221 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 18:09:48,222 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-03 18:09:48,761 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 954 statements into 1 equivalence classes.
[2025-03-03 18:09:49,396 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 954 of 954 statements.
[2025-03-03 18:09:49,396 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:49,396 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:49,417 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4102 conjuncts, 10 conjuncts are in the unsatisfiable core
[2025-03-03 18:09:49,437 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 18:09:50,711 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 74 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2025-03-03 18:09:50,711 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-03 18:09:52,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 74 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2025-03-03 18:09:52,205 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188685732] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-03 18:09:52,205 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-03 18:09:52,205 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11
[2025-03-03 18:09:52,205 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436710014]
[2025-03-03 18:09:52,205 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-03 18:09:52,207 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2025-03-03 18:09:52,207 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:52,207 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2025-03-03 18:09:52,208 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2025-03-03 18:09:52,208 INFO  L87              Difference]: Start difference. First operand 1891 states and 2825 transitions. Second operand  has 11 states, 11 states have (on average 99.27272727272727) internal successors, (1092), 11 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:54,477 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:54,477 INFO  L93              Difference]: Finished difference Result 7033 states and 10502 transitions.
[2025-03-03 18:09:54,478 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2025-03-03 18:09:54,479 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 99.27272727272727) internal successors, (1092), 11 states have internal predecessors, (1092), 0 states have call successors, (0), 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 954
[2025-03-03 18:09:54,479 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:54,485 INFO  L225             Difference]: With dead ends: 7033
[2025-03-03 18:09:54,485 INFO  L226             Difference]: Without dead ends: 3016
[2025-03-03 18:09:54,487 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 1922 GetRequests, 1904 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380
[2025-03-03 18:09:54,487 INFO  L435           NwaCegarLoop]: 1960 mSDtfsCounter, 12834 mSDsluCounter, 12452 mSDsCounter, 0 mSdLazyCounter, 4425 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12834 SdHoareTripleChecker+Valid, 14412 SdHoareTripleChecker+Invalid, 4615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 4425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:54,488 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12834 Valid, 14412 Invalid, 4615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 4425 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2025-03-03 18:09:54,490 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3016 states.
[2025-03-03 18:09:54,504 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 1891.
[2025-03-03 18:09:54,506 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1891 states, 1890 states have (on average 1.4936507936507937) internal successors, (2823), 1890 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:54,507 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2823 transitions.
[2025-03-03 18:09:54,507 INFO  L78                 Accepts]: Start accepts. Automaton has 1891 states and 2823 transitions. Word has length 954
[2025-03-03 18:09:54,508 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:54,508 INFO  L471      AbstractCegarLoop]: Abstraction has 1891 states and 2823 transitions.
[2025-03-03 18:09:54,508 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 99.27272727272727) internal successors, (1092), 11 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:54,508 INFO  L276                IsEmpty]: Start isEmpty. Operand 1891 states and 2823 transitions.
[2025-03-03 18:09:54,513 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 957
[2025-03-03 18:09:54,514 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:54,514 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:54,531 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2025-03-03 18:09:54,714 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2025-03-03 18:09:54,715 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:54,715 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:54,716 INFO  L85        PathProgramCache]: Analyzing trace with hash -521748988, now seen corresponding path program 1 times
[2025-03-03 18:09:54,716 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:54,716 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882323438]
[2025-03-03 18:09:54,716 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:54,716 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:54,810 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 956 statements into 1 equivalence classes.
[2025-03-03 18:09:55,324 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 956 of 956 statements.
[2025-03-03 18:09:55,324 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:55,324 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:56,242 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked.
[2025-03-03 18:09:56,243 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:56,243 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882323438]
[2025-03-03 18:09:56,243 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882323438] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:56,243 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:56,243 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-03-03 18:09:56,243 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151684448]
[2025-03-03 18:09:56,243 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:56,244 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 18:09:56,244 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:56,244 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 18:09:56,244 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2025-03-03 18:09:56,245 INFO  L87              Difference]: Start difference. First operand 1891 states and 2823 transitions. Second operand  has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:58,028 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:58,028 INFO  L93              Difference]: Finished difference Result 4693 states and 7006 transitions.
[2025-03-03 18:09:58,028 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 18:09:58,029 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 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 956
[2025-03-03 18:09:58,029 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:58,036 INFO  L225             Difference]: With dead ends: 4693
[2025-03-03 18:09:58,037 INFO  L226             Difference]: Without dead ends: 3076
[2025-03-03 18:09:58,039 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2025-03-03 18:09:58,040 INFO  L435           NwaCegarLoop]: 1641 mSDtfsCounter, 2161 mSDsluCounter, 6241 mSDsCounter, 0 mSdLazyCounter, 3711 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 7882 SdHoareTripleChecker+Invalid, 3737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:58,040 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 7882 Invalid, 3737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3711 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2025-03-03 18:09:58,042 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3076 states.
[2025-03-03 18:09:58,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 1891.
[2025-03-03 18:09:58,062 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1891 states, 1890 states have (on average 1.493121693121693) internal successors, (2822), 1890 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:58,063 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2822 transitions.
[2025-03-03 18:09:58,064 INFO  L78                 Accepts]: Start accepts. Automaton has 1891 states and 2822 transitions. Word has length 956
[2025-03-03 18:09:58,064 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:58,064 INFO  L471      AbstractCegarLoop]: Abstraction has 1891 states and 2822 transitions.
[2025-03-03 18:09:58,064 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:58,065 INFO  L276                IsEmpty]: Start isEmpty. Operand 1891 states and 2822 transitions.
[2025-03-03 18:09:58,073 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 958
[2025-03-03 18:09:58,073 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:58,074 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:58,074 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2025-03-03 18:09:58,075 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:58,075 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:58,077 INFO  L85        PathProgramCache]: Analyzing trace with hash 1183081829, now seen corresponding path program 1 times
[2025-03-03 18:09:58,077 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:58,077 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129426733]
[2025-03-03 18:09:58,077 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:58,077 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:58,176 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 957 statements into 1 equivalence classes.
[2025-03-03 18:09:58,338 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 957 of 957 statements.
[2025-03-03 18:09:58,339 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:09:58,339 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:09:59,330 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked.
[2025-03-03 18:09:59,331 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:09:59,331 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129426733]
[2025-03-03 18:09:59,331 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129426733] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:09:59,331 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:09:59,331 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 18:09:59,331 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146544756]
[2025-03-03 18:09:59,331 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:09:59,331 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 18:09:59,332 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:09:59,332 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 18:09:59,332 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:09:59,332 INFO  L87              Difference]: Start difference. First operand 1891 states and 2822 transitions. Second operand  has 5 states, 5 states have (on average 166.2) internal successors, (831), 5 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:59,759 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:09:59,759 INFO  L93              Difference]: Finished difference Result 3410 states and 5090 transitions.
[2025-03-03 18:09:59,759 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:09:59,759 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 166.2) internal successors, (831), 5 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 957
[2025-03-03 18:09:59,760 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:09:59,764 INFO  L225             Difference]: With dead ends: 3410
[2025-03-03 18:09:59,764 INFO  L226             Difference]: Without dead ends: 1895
[2025-03-03 18:09:59,765 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:09:59,765 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-03-03 18:09:59,765 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5947 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-03-03 18:09:59,767 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1895 states.
[2025-03-03 18:09:59,778 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1893.
[2025-03-03 18:09:59,779 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1893 states, 1892 states have (on average 1.492600422832981) internal successors, (2824), 1892 states have internal predecessors, (2824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:59,781 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2824 transitions.
[2025-03-03 18:09:59,781 INFO  L78                 Accepts]: Start accepts. Automaton has 1893 states and 2824 transitions. Word has length 957
[2025-03-03 18:09:59,781 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:09:59,781 INFO  L471      AbstractCegarLoop]: Abstraction has 1893 states and 2824 transitions.
[2025-03-03 18:09:59,782 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 166.2) internal successors, (831), 5 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:09:59,782 INFO  L276                IsEmpty]: Start isEmpty. Operand 1893 states and 2824 transitions.
[2025-03-03 18:09:59,787 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 959
[2025-03-03 18:09:59,787 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:09:59,787 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:09:59,788 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2025-03-03 18:09:59,788 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:09:59,788 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:09:59,788 INFO  L85        PathProgramCache]: Analyzing trace with hash 1739197877, now seen corresponding path program 1 times
[2025-03-03 18:09:59,788 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:09:59,788 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912704326]
[2025-03-03 18:09:59,788 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:09:59,788 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:09:59,862 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 958 statements into 1 equivalence classes.
[2025-03-03 18:10:00,001 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 958 of 958 statements.
[2025-03-03 18:10:00,002 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:00,002 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:00,836 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked.
[2025-03-03 18:10:00,837 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:00,837 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912704326]
[2025-03-03 18:10:00,837 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912704326] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:00,837 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:10:00,837 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 18:10:00,837 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273133880]
[2025-03-03 18:10:00,837 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:00,838 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 18:10:00,838 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:00,838 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 18:10:00,839 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:10:00,839 INFO  L87              Difference]: Start difference. First operand 1893 states and 2824 transitions. Second operand  has 5 states, 5 states have (on average 166.8) internal successors, (834), 5 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:01,262 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:01,262 INFO  L93              Difference]: Finished difference Result 3418 states and 5100 transitions.
[2025-03-03 18:10:01,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:10:01,262 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 166.8) internal successors, (834), 5 states have internal predecessors, (834), 0 states have call successors, (0), 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 958
[2025-03-03 18:10:01,263 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:01,267 INFO  L225             Difference]: With dead ends: 3418
[2025-03-03 18:10:01,267 INFO  L226             Difference]: Without dead ends: 1897
[2025-03-03 18:10:01,269 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:10:01,270 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:01,271 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5947 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-03-03 18:10:01,272 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1897 states.
[2025-03-03 18:10:01,285 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1895.
[2025-03-03 18:10:01,286 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1895 states, 1894 states have (on average 1.4920802534318902) internal successors, (2826), 1894 states have internal predecessors, (2826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:01,288 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2826 transitions.
[2025-03-03 18:10:01,288 INFO  L78                 Accepts]: Start accepts. Automaton has 1895 states and 2826 transitions. Word has length 958
[2025-03-03 18:10:01,288 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:01,288 INFO  L471      AbstractCegarLoop]: Abstraction has 1895 states and 2826 transitions.
[2025-03-03 18:10:01,288 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 166.8) internal successors, (834), 5 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:01,289 INFO  L276                IsEmpty]: Start isEmpty. Operand 1895 states and 2826 transitions.
[2025-03-03 18:10:01,294 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 960
[2025-03-03 18:10:01,294 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:01,294 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:01,294 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2025-03-03 18:10:01,294 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:01,295 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:01,295 INFO  L85        PathProgramCache]: Analyzing trace with hash 358155872, now seen corresponding path program 1 times
[2025-03-03 18:10:01,295 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:01,295 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384319765]
[2025-03-03 18:10:01,295 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:01,295 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:01,370 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 959 statements into 1 equivalence classes.
[2025-03-03 18:10:01,819 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 959 of 959 statements.
[2025-03-03 18:10:01,819 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:01,819 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:03,087 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked.
[2025-03-03 18:10:03,088 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:03,088 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384319765]
[2025-03-03 18:10:03,088 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384319765] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:03,088 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:10:03,088 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 18:10:03,088 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532992317]
[2025-03-03 18:10:03,088 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:03,089 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 18:10:03,089 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:03,090 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 18:10:03,090 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:10:03,090 INFO  L87              Difference]: Start difference. First operand 1895 states and 2826 transitions. Second operand  has 5 states, 5 states have (on average 180.4) internal successors, (902), 5 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:04,607 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:04,607 INFO  L93              Difference]: Finished difference Result 4653 states and 6940 transitions.
[2025-03-03 18:10:04,607 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-03 18:10:04,608 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 180.4) internal successors, (902), 5 states have internal predecessors, (902), 0 states have call successors, (0), 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 959
[2025-03-03 18:10:04,608 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:04,612 INFO  L225             Difference]: With dead ends: 4653
[2025-03-03 18:10:04,612 INFO  L226             Difference]: Without dead ends: 3032
[2025-03-03 18:10:04,614 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:10:04,614 INFO  L435           NwaCegarLoop]: 1483 mSDtfsCounter, 2133 mSDsluCounter, 4215 mSDsCounter, 0 mSdLazyCounter, 3382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 5698 SdHoareTripleChecker+Invalid, 3382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:04,614 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 5698 Invalid, 3382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3382 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-03-03 18:10:04,616 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3032 states.
[2025-03-03 18:10:04,631 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 1895.
[2025-03-03 18:10:04,632 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1895 states, 1894 states have (on average 1.4915522703273496) internal successors, (2825), 1894 states have internal predecessors, (2825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:04,634 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2825 transitions.
[2025-03-03 18:10:04,634 INFO  L78                 Accepts]: Start accepts. Automaton has 1895 states and 2825 transitions. Word has length 959
[2025-03-03 18:10:04,634 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:04,634 INFO  L471      AbstractCegarLoop]: Abstraction has 1895 states and 2825 transitions.
[2025-03-03 18:10:04,634 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 180.4) internal successors, (902), 5 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:04,635 INFO  L276                IsEmpty]: Start isEmpty. Operand 1895 states and 2825 transitions.
[2025-03-03 18:10:04,639 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 961
[2025-03-03 18:10:04,640 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:04,640 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:04,640 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2025-03-03 18:10:04,640 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:04,641 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:04,641 INFO  L85        PathProgramCache]: Analyzing trace with hash 1326679911, now seen corresponding path program 1 times
[2025-03-03 18:10:04,641 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:04,641 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971512829]
[2025-03-03 18:10:04,642 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:04,642 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:04,713 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 960 statements into 1 equivalence classes.
[2025-03-03 18:10:04,870 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 960 of 960 statements.
[2025-03-03 18:10:04,870 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:04,871 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:05,733 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2025-03-03 18:10:05,733 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:05,733 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971512829]
[2025-03-03 18:10:05,733 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971512829] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:05,733 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:10:05,733 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 18:10:05,733 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159269554]
[2025-03-03 18:10:05,734 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:05,734 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 18:10:05,734 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:05,735 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 18:10:05,735 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:10:05,735 INFO  L87              Difference]: Start difference. First operand 1895 states and 2825 transitions. Second operand  has 5 states, 5 states have (on average 167.6) internal successors, (838), 5 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:06,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:06,158 INFO  L93              Difference]: Finished difference Result 3426 states and 5109 transitions.
[2025-03-03 18:10:06,158 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:10:06,159 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 167.6) internal successors, (838), 5 states have internal predecessors, (838), 0 states have call successors, (0), 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 960
[2025-03-03 18:10:06,159 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:06,162 INFO  L225             Difference]: With dead ends: 3426
[2025-03-03 18:10:06,162 INFO  L226             Difference]: Without dead ends: 1899
[2025-03-03 18:10:06,163 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:10:06,164 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 0 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:06,164 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5947 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-03-03 18:10:06,166 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1899 states.
[2025-03-03 18:10:06,176 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1897.
[2025-03-03 18:10:06,177 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1897 states, 1896 states have (on average 1.4910337552742616) internal successors, (2827), 1896 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:06,179 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2827 transitions.
[2025-03-03 18:10:06,179 INFO  L78                 Accepts]: Start accepts. Automaton has 1897 states and 2827 transitions. Word has length 960
[2025-03-03 18:10:06,179 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:06,179 INFO  L471      AbstractCegarLoop]: Abstraction has 1897 states and 2827 transitions.
[2025-03-03 18:10:06,179 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 167.6) internal successors, (838), 5 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:06,179 INFO  L276                IsEmpty]: Start isEmpty. Operand 1897 states and 2827 transitions.
[2025-03-03 18:10:06,184 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 962
[2025-03-03 18:10:06,184 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:06,184 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:06,185 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2025-03-03 18:10:06,185 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:06,185 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:06,185 INFO  L85        PathProgramCache]: Analyzing trace with hash -1925085677, now seen corresponding path program 1 times
[2025-03-03 18:10:06,185 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:06,185 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439297023]
[2025-03-03 18:10:06,186 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:06,186 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:06,251 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 961 statements into 1 equivalence classes.
[2025-03-03 18:10:06,394 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 961 of 961 statements.
[2025-03-03 18:10:06,394 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:06,394 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:07,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked.
[2025-03-03 18:10:07,147 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:07,147 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439297023]
[2025-03-03 18:10:07,147 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439297023] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:07,147 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:10:07,148 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:10:07,148 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53315310]
[2025-03-03 18:10:07,148 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:07,148 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:10:07,148 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:07,149 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:10:07,149 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:10:07,149 INFO  L87              Difference]: Start difference. First operand 1897 states and 2827 transitions. Second operand  has 4 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:07,652 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:07,652 INFO  L93              Difference]: Finished difference Result 3442 states and 5131 transitions.
[2025-03-03 18:10:07,652 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:10:07,653 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 0 states have call successors, (0), 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 961
[2025-03-03 18:10:07,653 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:07,655 INFO  L225             Difference]: With dead ends: 3442
[2025-03-03 18:10:07,655 INFO  L226             Difference]: Without dead ends: 1909
[2025-03-03 18:10:07,656 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:10:07,661 INFO  L435           NwaCegarLoop]: 1985 mSDtfsCounter, 4 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:07,662 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5947 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2025-03-03 18:10:07,663 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1909 states.
[2025-03-03 18:10:07,675 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1903.
[2025-03-03 18:10:07,676 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1903 states, 1902 states have (on average 1.4905362776025237) internal successors, (2835), 1902 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:07,678 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2835 transitions.
[2025-03-03 18:10:07,678 INFO  L78                 Accepts]: Start accepts. Automaton has 1903 states and 2835 transitions. Word has length 961
[2025-03-03 18:10:07,678 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:07,678 INFO  L471      AbstractCegarLoop]: Abstraction has 1903 states and 2835 transitions.
[2025-03-03 18:10:07,679 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:07,679 INFO  L276                IsEmpty]: Start isEmpty. Operand 1903 states and 2835 transitions.
[2025-03-03 18:10:07,683 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 963
[2025-03-03 18:10:07,684 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:07,684 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:07,684 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2025-03-03 18:10:07,684 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:07,685 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:07,685 INFO  L85        PathProgramCache]: Analyzing trace with hash -1016531043, now seen corresponding path program 1 times
[2025-03-03 18:10:07,685 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:07,685 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024909384]
[2025-03-03 18:10:07,685 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:07,685 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:07,755 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 962 statements into 1 equivalence classes.
[2025-03-03 18:10:07,894 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 962 of 962 statements.
[2025-03-03 18:10:07,894 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:07,894 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:08,908 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 76 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:10:08,908 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:08,908 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024909384]
[2025-03-03 18:10:08,908 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024909384] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 18:10:08,908 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878118105]
[2025-03-03 18:10:08,909 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:08,909 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:08,909 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:10:08,910 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 18:10:08,911 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-03-03 18:10:09,501 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 962 statements into 1 equivalence classes.
[2025-03-03 18:10:10,215 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 962 of 962 statements.
[2025-03-03 18:10:10,215 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:10,215 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:10,234 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4124 conjuncts, 10 conjuncts are in the unsatisfiable core
[2025-03-03 18:10:10,245 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 18:10:10,431 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked.
[2025-03-03 18:10:10,432 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 18:10:10,432 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [878118105] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:10,432 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 18:10:10,432 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2025-03-03 18:10:10,432 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012774815]
[2025-03-03 18:10:10,432 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:10,433 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 18:10:10,433 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:10,433 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 18:10:10,434 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2025-03-03 18:10:10,434 INFO  L87              Difference]: Start difference. First operand 1903 states and 2835 transitions. Second operand  has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:11,727 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:11,727 INFO  L93              Difference]: Finished difference Result 4721 states and 7034 transitions.
[2025-03-03 18:10:11,727 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 18:10:11,728 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 0 states have call successors, (0), 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 962
[2025-03-03 18:10:11,728 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:11,732 INFO  L225             Difference]: With dead ends: 4721
[2025-03-03 18:10:11,732 INFO  L226             Difference]: Without dead ends: 3112
[2025-03-03 18:10:11,734 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 960 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2025-03-03 18:10:11,734 INFO  L435           NwaCegarLoop]: 1643 mSDtfsCounter, 4161 mSDsluCounter, 5047 mSDsCounter, 0 mSdLazyCounter, 3006 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4161 SdHoareTripleChecker+Valid, 6690 SdHoareTripleChecker+Invalid, 3032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:11,734 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4161 Valid, 6690 Invalid, 3032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3006 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-03 18:10:11,736 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3112 states.
[2025-03-03 18:10:11,748 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3112 to 1903.
[2025-03-03 18:10:11,749 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1903 states, 1902 states have (on average 1.4900105152471084) internal successors, (2834), 1902 states have internal predecessors, (2834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:11,751 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2834 transitions.
[2025-03-03 18:10:11,751 INFO  L78                 Accepts]: Start accepts. Automaton has 1903 states and 2834 transitions. Word has length 962
[2025-03-03 18:10:11,751 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:11,751 INFO  L471      AbstractCegarLoop]: Abstraction has 1903 states and 2834 transitions.
[2025-03-03 18:10:11,752 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:11,752 INFO  L276                IsEmpty]: Start isEmpty. Operand 1903 states and 2834 transitions.
[2025-03-03 18:10:11,756 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 964
[2025-03-03 18:10:11,757 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:11,757 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:11,774 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2025-03-03 18:10:11,958 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2025-03-03 18:10:11,958 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:11,959 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:11,959 INFO  L85        PathProgramCache]: Analyzing trace with hash -285933561, now seen corresponding path program 1 times
[2025-03-03 18:10:11,959 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:11,959 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540218507]
[2025-03-03 18:10:11,959 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:11,959 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:12,031 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 963 statements into 1 equivalence classes.
[2025-03-03 18:10:12,167 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 963 of 963 statements.
[2025-03-03 18:10:12,167 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:12,167 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:13,060 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 76 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:10:13,060 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:13,060 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540218507]
[2025-03-03 18:10:13,060 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540218507] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 18:10:13,060 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116743775]
[2025-03-03 18:10:13,061 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:13,061 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:13,061 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:10:13,062 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 18:10:13,063 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-03-03 18:10:13,654 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 963 statements into 1 equivalence classes.
[2025-03-03 18:10:14,259 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 963 of 963 statements.
[2025-03-03 18:10:14,259 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:14,259 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:14,277 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4127 conjuncts, 10 conjuncts are in the unsatisfiable core
[2025-03-03 18:10:14,287 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 18:10:14,510 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked.
[2025-03-03 18:10:14,511 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 18:10:14,511 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [116743775] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:14,511 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 18:10:14,511 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2025-03-03 18:10:14,511 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301845291]
[2025-03-03 18:10:14,511 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:14,511 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 18:10:14,511 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:14,512 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 18:10:14,512 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2025-03-03 18:10:14,512 INFO  L87              Difference]: Start difference. First operand 1903 states and 2834 transitions. Second operand  has 6 states, 6 states have (on average 154.66666666666666) internal successors, (928), 6 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:16,133 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:16,134 INFO  L93              Difference]: Finished difference Result 4713 states and 7021 transitions.
[2025-03-03 18:10:16,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 18:10:16,134 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 154.66666666666666) internal successors, (928), 6 states have internal predecessors, (928), 0 states have call successors, (0), 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 963
[2025-03-03 18:10:16,134 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:16,139 INFO  L225             Difference]: With dead ends: 4713
[2025-03-03 18:10:16,139 INFO  L226             Difference]: Without dead ends: 3124
[2025-03-03 18:10:16,141 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 961 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2025-03-03 18:10:16,141 INFO  L435           NwaCegarLoop]: 1644 mSDtfsCounter, 2172 mSDsluCounter, 6455 mSDsCounter, 0 mSdLazyCounter, 3878 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 8099 SdHoareTripleChecker+Invalid, 3904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:16,141 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 8099 Invalid, 3904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3878 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-03-03 18:10:16,143 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3124 states.
[2025-03-03 18:10:16,156 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 1903.
[2025-03-03 18:10:16,158 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1903 states, 1902 states have (on average 1.489484752891693) internal successors, (2833), 1902 states have internal predecessors, (2833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:16,159 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2833 transitions.
[2025-03-03 18:10:16,159 INFO  L78                 Accepts]: Start accepts. Automaton has 1903 states and 2833 transitions. Word has length 963
[2025-03-03 18:10:16,160 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:16,160 INFO  L471      AbstractCegarLoop]: Abstraction has 1903 states and 2833 transitions.
[2025-03-03 18:10:16,160 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 154.66666666666666) internal successors, (928), 6 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:16,160 INFO  L276                IsEmpty]: Start isEmpty. Operand 1903 states and 2833 transitions.
[2025-03-03 18:10:16,167 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 965
[2025-03-03 18:10:16,167 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:16,168 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:16,190 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2025-03-03 18:10:16,368 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2025-03-03 18:10:16,369 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:16,369 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:16,369 INFO  L85        PathProgramCache]: Analyzing trace with hash 423762166, now seen corresponding path program 1 times
[2025-03-03 18:10:16,369 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:16,370 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008430082]
[2025-03-03 18:10:16,370 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:16,370 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:16,431 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 964 statements into 1 equivalence classes.
[2025-03-03 18:10:16,566 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 964 of 964 statements.
[2025-03-03 18:10:16,566 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:16,566 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:17,418 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 76 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:10:17,418 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:17,418 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008430082]
[2025-03-03 18:10:17,418 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008430082] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 18:10:17,418 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116032655]
[2025-03-03 18:10:17,418 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:17,418 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:17,418 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:10:17,420 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 18:10:17,421 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2025-03-03 18:10:17,992 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 964 statements into 1 equivalence classes.
[2025-03-03 18:10:18,686 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 964 of 964 statements.
[2025-03-03 18:10:18,687 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:18,687 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:18,705 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4130 conjuncts, 10 conjuncts are in the unsatisfiable core
[2025-03-03 18:10:18,715 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 18:10:18,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked.
[2025-03-03 18:10:18,917 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 18:10:18,918 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116032655] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:18,918 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 18:10:18,918 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2025-03-03 18:10:18,918 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495529149]
[2025-03-03 18:10:18,918 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:18,918 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 18:10:18,918 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:18,919 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 18:10:18,919 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2025-03-03 18:10:18,919 INFO  L87              Difference]: Start difference. First operand 1903 states and 2833 transitions. Second operand  has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:20,180 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:20,181 INFO  L93              Difference]: Finished difference Result 4717 states and 7025 transitions.
[2025-03-03 18:10:20,181 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 18:10:20,181 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 964
[2025-03-03 18:10:20,181 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:20,185 INFO  L225             Difference]: With dead ends: 4717
[2025-03-03 18:10:20,185 INFO  L226             Difference]: Without dead ends: 3116
[2025-03-03 18:10:20,187 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 972 GetRequests, 962 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2025-03-03 18:10:20,187 INFO  L435           NwaCegarLoop]: 1645 mSDtfsCounter, 4159 mSDsluCounter, 5049 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4159 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:20,187 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4159 Valid, 6694 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-03 18:10:20,189 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3116 states.
[2025-03-03 18:10:20,200 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 1903.
[2025-03-03 18:10:20,201 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1903 states, 1902 states have (on average 1.4889589905362777) internal successors, (2832), 1902 states have internal predecessors, (2832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:20,203 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2832 transitions.
[2025-03-03 18:10:20,203 INFO  L78                 Accepts]: Start accepts. Automaton has 1903 states and 2832 transitions. Word has length 964
[2025-03-03 18:10:20,203 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:20,203 INFO  L471      AbstractCegarLoop]: Abstraction has 1903 states and 2832 transitions.
[2025-03-03 18:10:20,203 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:20,203 INFO  L276                IsEmpty]: Start isEmpty. Operand 1903 states and 2832 transitions.
[2025-03-03 18:10:20,208 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 966
[2025-03-03 18:10:20,208 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:20,209 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:20,227 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2025-03-03 18:10:20,409 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:20,409 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:20,410 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:20,410 INFO  L85        PathProgramCache]: Analyzing trace with hash -597637162, now seen corresponding path program 1 times
[2025-03-03 18:10:20,410 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:20,410 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815297177]
[2025-03-03 18:10:20,410 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:20,411 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:20,484 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 965 statements into 1 equivalence classes.
[2025-03-03 18:10:20,628 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 965 of 965 statements.
[2025-03-03 18:10:20,628 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:20,628 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:21,539 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 76 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:10:21,540 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:21,540 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815297177]
[2025-03-03 18:10:21,540 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815297177] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 18:10:21,540 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625774451]
[2025-03-03 18:10:21,540 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:21,540 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:21,540 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:10:21,542 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 18:10:21,542 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2025-03-03 18:10:22,141 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 965 statements into 1 equivalence classes.
[2025-03-03 18:10:22,799 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 965 of 965 statements.
[2025-03-03 18:10:22,799 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:22,799 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:22,817 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4133 conjuncts, 10 conjuncts are in the unsatisfiable core
[2025-03-03 18:10:22,826 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 18:10:23,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked.
[2025-03-03 18:10:23,034 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 18:10:23,035 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [625774451] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:23,035 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 18:10:23,035 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2025-03-03 18:10:23,035 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243055945]
[2025-03-03 18:10:23,035 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:23,035 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 18:10:23,035 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:23,036 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 18:10:23,036 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2025-03-03 18:10:23,036 INFO  L87              Difference]: Start difference. First operand 1903 states and 2832 transitions. Second operand  has 6 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:24,318 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:24,319 INFO  L93              Difference]: Finished difference Result 4709 states and 7013 transitions.
[2025-03-03 18:10:24,319 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 18:10:24,319 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 0 states have call successors, (0), 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 965
[2025-03-03 18:10:24,319 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:24,323 INFO  L225             Difference]: With dead ends: 4709
[2025-03-03 18:10:24,323 INFO  L226             Difference]: Without dead ends: 3128
[2025-03-03 18:10:24,325 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 973 GetRequests, 963 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2025-03-03 18:10:24,325 INFO  L435           NwaCegarLoop]: 1646 mSDtfsCounter, 4169 mSDsluCounter, 5050 mSDsCounter, 0 mSdLazyCounter, 3000 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4169 SdHoareTripleChecker+Valid, 6696 SdHoareTripleChecker+Invalid, 3026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:24,325 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4169 Valid, 6696 Invalid, 3026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3000 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-03 18:10:24,327 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3128 states.
[2025-03-03 18:10:24,342 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 1903.
[2025-03-03 18:10:24,344 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1903 states, 1902 states have (on average 1.4884332281808623) internal successors, (2831), 1902 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:24,345 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2831 transitions.
[2025-03-03 18:10:24,345 INFO  L78                 Accepts]: Start accepts. Automaton has 1903 states and 2831 transitions. Word has length 965
[2025-03-03 18:10:24,345 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:24,346 INFO  L471      AbstractCegarLoop]: Abstraction has 1903 states and 2831 transitions.
[2025-03-03 18:10:24,346 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:24,346 INFO  L276                IsEmpty]: Start isEmpty. Operand 1903 states and 2831 transitions.
[2025-03-03 18:10:24,351 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 967
[2025-03-03 18:10:24,351 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:24,351 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:24,371 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2025-03-03 18:10:24,552 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:24,553 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:24,553 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:24,554 INFO  L85        PathProgramCache]: Analyzing trace with hash -1961742383, now seen corresponding path program 1 times
[2025-03-03 18:10:24,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:24,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004709990]
[2025-03-03 18:10:24,554 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:24,554 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:24,625 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 966 statements into 1 equivalence classes.
[2025-03-03 18:10:24,789 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 966 of 966 statements.
[2025-03-03 18:10:24,789 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:24,789 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:25,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 76 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:10:25,610 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:25,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004709990]
[2025-03-03 18:10:25,610 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004709990] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 18:10:25,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119639345]
[2025-03-03 18:10:25,610 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:25,610 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:25,610 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:10:25,612 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 18:10:25,613 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2025-03-03 18:10:26,242 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 966 statements into 1 equivalence classes.
[2025-03-03 18:10:26,927 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 966 of 966 statements.
[2025-03-03 18:10:26,928 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:26,928 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:26,946 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4136 conjuncts, 10 conjuncts are in the unsatisfiable core
[2025-03-03 18:10:26,954 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 18:10:27,102 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked.
[2025-03-03 18:10:27,103 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 18:10:27,103 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119639345] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:27,103 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 18:10:27,103 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2025-03-03 18:10:27,103 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722300880]
[2025-03-03 18:10:27,103 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:27,104 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 18:10:27,104 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:27,105 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 18:10:27,105 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2025-03-03 18:10:27,105 INFO  L87              Difference]: Start difference. First operand 1903 states and 2831 transitions. Second operand  has 6 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:28,458 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:28,459 INFO  L93              Difference]: Finished difference Result 4725 states and 7032 transitions.
[2025-03-03 18:10:28,459 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 18:10:28,459 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 0 states have call successors, (0), 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 966
[2025-03-03 18:10:28,459 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:28,465 INFO  L225             Difference]: With dead ends: 4725
[2025-03-03 18:10:28,465 INFO  L226             Difference]: Without dead ends: 3104
[2025-03-03 18:10:28,466 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 974 GetRequests, 964 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2025-03-03 18:10:28,467 INFO  L435           NwaCegarLoop]: 1647 mSDtfsCounter, 4141 mSDsluCounter, 5051 mSDsCounter, 0 mSdLazyCounter, 2998 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4141 SdHoareTripleChecker+Valid, 6698 SdHoareTripleChecker+Invalid, 3024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:28,467 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4141 Valid, 6698 Invalid, 3024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2998 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-03-03 18:10:28,469 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3104 states.
[2025-03-03 18:10:28,479 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 1903.
[2025-03-03 18:10:28,481 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1903 states, 1902 states have (on average 1.487907465825447) internal successors, (2830), 1902 states have internal predecessors, (2830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:28,482 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2830 transitions.
[2025-03-03 18:10:28,482 INFO  L78                 Accepts]: Start accepts. Automaton has 1903 states and 2830 transitions. Word has length 966
[2025-03-03 18:10:28,482 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:28,482 INFO  L471      AbstractCegarLoop]: Abstraction has 1903 states and 2830 transitions.
[2025-03-03 18:10:28,483 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:28,483 INFO  L276                IsEmpty]: Start isEmpty. Operand 1903 states and 2830 transitions.
[2025-03-03 18:10:28,488 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 968
[2025-03-03 18:10:28,488 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:28,488 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:28,507 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2025-03-03 18:10:28,689 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:28,690 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:28,690 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:28,690 INFO  L85        PathProgramCache]: Analyzing trace with hash -1869535828, now seen corresponding path program 1 times
[2025-03-03 18:10:28,690 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:28,690 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455543975]
[2025-03-03 18:10:28,691 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:28,691 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:28,758 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 967 statements into 1 equivalence classes.
[2025-03-03 18:10:28,904 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 967 of 967 statements.
[2025-03-03 18:10:28,904 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:28,904 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:29,776 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 76 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:10:29,776 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:29,776 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455543975]
[2025-03-03 18:10:29,776 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455543975] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 18:10:29,776 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379718410]
[2025-03-03 18:10:29,777 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:29,777 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:29,777 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:10:29,778 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 18:10:29,779 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2025-03-03 18:10:30,434 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 967 statements into 1 equivalence classes.
[2025-03-03 18:10:31,147 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 967 of 967 statements.
[2025-03-03 18:10:31,147 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:31,147 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:31,169 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4139 conjuncts, 10 conjuncts are in the unsatisfiable core
[2025-03-03 18:10:31,224 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 18:10:31,457 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2025-03-03 18:10:31,457 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 18:10:31,457 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [379718410] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:31,457 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 18:10:31,457 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2025-03-03 18:10:31,457 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784625544]
[2025-03-03 18:10:31,457 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:31,458 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 18:10:31,458 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:31,458 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 18:10:31,458 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2025-03-03 18:10:31,458 INFO  L87              Difference]: Start difference. First operand 1903 states and 2830 transitions. Second operand  has 6 states, 6 states have (on average 157.66666666666666) internal successors, (946), 6 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:32,717 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:32,719 INFO  L93              Difference]: Finished difference Result 4701 states and 6999 transitions.
[2025-03-03 18:10:32,719 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 18:10:32,719 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 157.66666666666666) internal successors, (946), 6 states have internal predecessors, (946), 0 states have call successors, (0), 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 967
[2025-03-03 18:10:32,719 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:32,722 INFO  L225             Difference]: With dead ends: 4701
[2025-03-03 18:10:32,722 INFO  L226             Difference]: Without dead ends: 3140
[2025-03-03 18:10:32,724 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 975 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2025-03-03 18:10:32,724 INFO  L435           NwaCegarLoop]: 1648 mSDtfsCounter, 4177 mSDsluCounter, 5052 mSDsCounter, 0 mSdLazyCounter, 2996 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4177 SdHoareTripleChecker+Valid, 6700 SdHoareTripleChecker+Invalid, 3022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:32,725 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4177 Valid, 6700 Invalid, 3022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2996 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-03 18:10:32,726 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3140 states.
[2025-03-03 18:10:32,738 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 1903.
[2025-03-03 18:10:32,739 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1903 states, 1902 states have (on average 1.4873817034700316) internal successors, (2829), 1902 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:32,740 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2829 transitions.
[2025-03-03 18:10:32,740 INFO  L78                 Accepts]: Start accepts. Automaton has 1903 states and 2829 transitions. Word has length 967
[2025-03-03 18:10:32,740 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:32,740 INFO  L471      AbstractCegarLoop]: Abstraction has 1903 states and 2829 transitions.
[2025-03-03 18:10:32,740 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 157.66666666666666) internal successors, (946), 6 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:32,740 INFO  L276                IsEmpty]: Start isEmpty. Operand 1903 states and 2829 transitions.
[2025-03-03 18:10:32,745 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 969
[2025-03-03 18:10:32,745 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:32,745 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:32,764 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2025-03-03 18:10:32,946 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:32,946 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:32,947 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:32,947 INFO  L85        PathProgramCache]: Analyzing trace with hash 1316606100, now seen corresponding path program 1 times
[2025-03-03 18:10:32,947 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:32,947 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506011364]
[2025-03-03 18:10:32,947 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:32,947 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:33,013 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 968 statements into 1 equivalence classes.
[2025-03-03 18:10:33,155 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 968 of 968 statements.
[2025-03-03 18:10:33,155 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:33,155 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:34,055 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 76 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:10:34,055 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:34,055 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506011364]
[2025-03-03 18:10:34,055 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506011364] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 18:10:34,055 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151515106]
[2025-03-03 18:10:34,055 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:34,055 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:34,055 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:10:34,057 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 18:10:34,057 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2025-03-03 18:10:34,731 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 968 statements into 1 equivalence classes.
[2025-03-03 18:10:35,408 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 968 of 968 statements.
[2025-03-03 18:10:35,408 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:35,409 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:35,429 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4142 conjuncts, 10 conjuncts are in the unsatisfiable core
[2025-03-03 18:10:35,440 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 18:10:35,645 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2025-03-03 18:10:35,645 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 18:10:35,645 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [151515106] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:35,645 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 18:10:35,645 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2025-03-03 18:10:35,645 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090296224]
[2025-03-03 18:10:35,645 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:35,646 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 18:10:35,646 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:35,647 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 18:10:35,647 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2025-03-03 18:10:35,647 INFO  L87              Difference]: Start difference. First operand 1903 states and 2829 transitions. Second operand  has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:36,928 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:36,928 INFO  L93              Difference]: Finished difference Result 4705 states and 7003 transitions.
[2025-03-03 18:10:36,928 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 18:10:36,928 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 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 968
[2025-03-03 18:10:36,929 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:36,931 INFO  L225             Difference]: With dead ends: 4705
[2025-03-03 18:10:36,931 INFO  L226             Difference]: Without dead ends: 3132
[2025-03-03 18:10:36,933 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 966 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2025-03-03 18:10:36,933 INFO  L435           NwaCegarLoop]: 1649 mSDtfsCounter, 4163 mSDsluCounter, 5053 mSDsCounter, 0 mSdLazyCounter, 2994 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4163 SdHoareTripleChecker+Valid, 6702 SdHoareTripleChecker+Invalid, 3020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:36,933 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4163 Valid, 6702 Invalid, 3020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2994 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-03-03 18:10:36,935 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3132 states.
[2025-03-03 18:10:36,947 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 1903.
[2025-03-03 18:10:36,948 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1903 states, 1902 states have (on average 1.4868559411146163) internal successors, (2828), 1902 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:36,949 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2828 transitions.
[2025-03-03 18:10:36,950 INFO  L78                 Accepts]: Start accepts. Automaton has 1903 states and 2828 transitions. Word has length 968
[2025-03-03 18:10:36,950 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:36,950 INFO  L471      AbstractCegarLoop]: Abstraction has 1903 states and 2828 transitions.
[2025-03-03 18:10:36,950 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:36,950 INFO  L276                IsEmpty]: Start isEmpty. Operand 1903 states and 2828 transitions.
[2025-03-03 18:10:36,955 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 970
[2025-03-03 18:10:36,955 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:36,955 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:36,974 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2025-03-03 18:10:37,156 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22
[2025-03-03 18:10:37,156 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:37,157 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:37,157 INFO  L85        PathProgramCache]: Analyzing trace with hash 1410116315, now seen corresponding path program 1 times
[2025-03-03 18:10:37,157 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:37,157 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020637457]
[2025-03-03 18:10:37,157 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:37,157 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:37,228 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 969 statements into 1 equivalence classes.
[2025-03-03 18:10:37,390 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 969 of 969 statements.
[2025-03-03 18:10:37,391 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:37,391 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:38,361 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 76 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:10:38,361 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:38,361 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020637457]
[2025-03-03 18:10:38,361 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020637457] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 18:10:38,361 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727070695]
[2025-03-03 18:10:38,361 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:38,361 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:38,361 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:10:38,363 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 18:10:38,364 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2025-03-03 18:10:39,065 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 969 statements into 1 equivalence classes.
[2025-03-03 18:10:39,797 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 969 of 969 statements.
[2025-03-03 18:10:39,797 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:39,797 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:39,821 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4145 conjuncts, 10 conjuncts are in the unsatisfiable core
[2025-03-03 18:10:39,829 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 18:10:40,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2025-03-03 18:10:40,052 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 18:10:40,052 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727070695] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:10:40,052 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 18:10:40,052 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2025-03-03 18:10:40,052 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005206222]
[2025-03-03 18:10:40,052 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:10:40,053 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 18:10:40,053 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:10:40,053 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 18:10:40,053 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2025-03-03 18:10:40,054 INFO  L87              Difference]: Start difference. First operand 1903 states and 2828 transitions. Second operand  has 6 states, 6 states have (on average 158.66666666666666) internal successors, (952), 6 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:41,686 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:10:41,686 INFO  L93              Difference]: Finished difference Result 4697 states and 6991 transitions.
[2025-03-03 18:10:41,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 18:10:41,687 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 158.66666666666666) internal successors, (952), 6 states have internal predecessors, (952), 0 states have call successors, (0), 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 969
[2025-03-03 18:10:41,687 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:10:41,690 INFO  L225             Difference]: With dead ends: 4697
[2025-03-03 18:10:41,690 INFO  L226             Difference]: Without dead ends: 3144
[2025-03-03 18:10:41,692 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 967 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2025-03-03 18:10:41,692 INFO  L435           NwaCegarLoop]: 1650 mSDtfsCounter, 2172 mSDsluCounter, 6461 mSDsCounter, 0 mSdLazyCounter, 3866 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 8111 SdHoareTripleChecker+Invalid, 3892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-03-03 18:10:41,692 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 8111 Invalid, 3892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3866 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-03-03 18:10:41,694 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3144 states.
[2025-03-03 18:10:41,707 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 1903.
[2025-03-03 18:10:41,709 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1903 states, 1902 states have (on average 1.486330178759201) internal successors, (2827), 1902 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:41,710 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2827 transitions.
[2025-03-03 18:10:41,710 INFO  L78                 Accepts]: Start accepts. Automaton has 1903 states and 2827 transitions. Word has length 969
[2025-03-03 18:10:41,710 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:10:41,710 INFO  L471      AbstractCegarLoop]: Abstraction has 1903 states and 2827 transitions.
[2025-03-03 18:10:41,711 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 158.66666666666666) internal successors, (952), 6 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 18:10:41,711 INFO  L276                IsEmpty]: Start isEmpty. Operand 1903 states and 2827 transitions.
[2025-03-03 18:10:41,716 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 971
[2025-03-03 18:10:41,716 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:10:41,717 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:10:41,737 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2025-03-03 18:10:41,917 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2025-03-03 18:10:41,917 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:10:41,918 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:10:41,918 INFO  L85        PathProgramCache]: Analyzing trace with hash 2098044815, now seen corresponding path program 1 times
[2025-03-03 18:10:41,918 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:10:41,918 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497015878]
[2025-03-03 18:10:41,918 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:41,919 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:10:41,990 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 970 statements into 1 equivalence classes.
[2025-03-03 18:10:42,140 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 970 of 970 statements.
[2025-03-03 18:10:42,140 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:42,140 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:43,156 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 76 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:10:43,156 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:10:43,156 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497015878]
[2025-03-03 18:10:43,156 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497015878] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 18:10:43,156 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102608309]
[2025-03-03 18:10:43,156 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:10:43,156 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 18:10:43,156 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:10:43,159 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 18:10:43,160 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2025-03-03 18:10:43,908 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 970 statements into 1 equivalence classes.
[2025-03-03 18:10:44,870 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 970 of 970 statements.
[2025-03-03 18:10:44,870 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:10:44,870 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:10:44,891 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4148 conjuncts, 8 conjuncts are in the unsatisfiable core
[2025-03-03 18:10:44,899 INFO  L279         TraceCheckSpWp]: Computing forward predicates...