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


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


Checking for ERROR reachability
Using default analysis
Version 48c9605d
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.4.prop1-back-serstep.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 6962ce2d193c5424f2b0de1eb06b6f601e754f0a6f6ff564f4146b7a13fb7f8a
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-48c9605-m
[2025-02-07 23:49:30,541 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-07 23:49:30,575 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-02-07 23:49:30,578 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-07 23:49:30,578 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-07 23:49:30,591 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-07 23:49:30,592 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-07 23:49:30,592 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-07 23:49:30,592 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-07 23:49:30,593 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-07 23:49:30,593 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-07 23:49:30,593 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-07 23:49:30,593 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-07 23:49:30,593 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-07 23:49:30,593 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-07 23:49:30,593 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-07 23:49:30,593 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-07 23:49:30,593 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-07 23:49:30,594 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-07 23:49:30,594 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-07 23:49:30,594 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-07 23:49:30,594 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-07 23:49:30,594 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-07 23:49:30,594 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-07 23:49:30,594 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-07 23:49:30,594 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-07 23:49:30,594 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-07 23:49:30,594 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-07 23:49:30,594 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-07 23:49:30,595 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 23:49:30,595 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-07 23:49:30,595 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-07 23:49:30,595 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-07 23:49:30,595 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-07 23:49:30,595 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-07 23:49:30,595 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-07 23:49:30,595 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-07 23:49:30,595 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-07 23:49:30,595 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-07 23:49:30,595 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-07 23:49:30,595 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-jdk21/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 -> 6962ce2d193c5424f2b0de1eb06b6f601e754f0a6f6ff564f4146b7a13fb7f8a
[2025-02-07 23:49:30,759 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-07 23:49:30,780 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-07 23:49:30,783 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-07 23:49:30,783 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-07 23:49:30,783 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-07 23:49:30,784 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.4.prop1-back-serstep.c
[2025-02-07 23:49:31,955 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a60301df5/81f74c0d584b4451b405d959f38fabef/FLAG35bac7e0c
[2025-02-07 23:49:32,306 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-07 23:49:32,307 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.4.prop1-back-serstep.c
[2025-02-07 23:49:32,326 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a60301df5/81f74c0d584b4451b405d959f38fabef/FLAG35bac7e0c
[2025-02-07 23:49:32,341 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a60301df5/81f74c0d584b4451b405d959f38fabef
[2025-02-07 23:49:32,342 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-07 23:49:32,343 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-07 23:49:32,345 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-07 23:49:32,345 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-07 23:49:32,348 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-07 23:49:32,349 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:49:32" (1/1) ...
[2025-02-07 23:49:32,350 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47167c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:32, skipping insertion in model container
[2025-02-07 23:49:32,350 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:49:32" (1/1) ...
[2025-02-07 23:49:32,406 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-07 23:49:32,547 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.4.prop1-back-serstep.c[1183,1196]
[2025-02-07 23:49:32,897 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 23:49:32,904 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-07 23:49:32,913 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.4.prop1-back-serstep.c[1183,1196]
[2025-02-07 23:49:33,159 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 23:49:33,170 INFO  L204         MainTranslator]: Completed translation
[2025-02-07 23:49:33,171 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33 WrapperNode
[2025-02-07 23:49:33,171 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-07 23:49:33,171 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-07 23:49:33,171 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-07 23:49:33,171 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-07 23:49:33,176 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:33,249 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:33,997 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10551
[2025-02-07 23:49:33,998 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-07 23:49:33,999 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-07 23:49:33,999 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-07 23:49:33,999 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-07 23:49:34,005 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:34,005 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:34,177 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:34,391 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].
[2025-02-07 23:49:34,391 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:34,392 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:34,749 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:34,794 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:34,838 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:34,874 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:35,004 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-07 23:49:35,005 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-07 23:49:35,005 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-07 23:49:35,005 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-07 23:49:35,006 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (1/1) ...
[2025-02-07 23:49:35,010 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 23:49:35,019 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-07 23:49:35,033 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-02-07 23:49:35,038 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-02-07 23:49:35,055 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-07 23:49:35,056 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-07 23:49:35,056 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-07 23:49:35,056 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-07 23:49:35,595 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-07 23:49:35,597 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-07 23:49:48,780 INFO  L?                        ?]: Removed 5764 outVars from TransFormulas that were not future-live.
[2025-02-07 23:49:48,781 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-07 23:49:49,104 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-07 23:49:49,104 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-07 23:49:49,105 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:49:49 BoogieIcfgContainer
[2025-02-07 23:49:49,105 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-07 23:49:49,107 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-07 23:49:49,107 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-07 23:49:49,110 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-07 23:49:49,110 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:49:32" (1/3) ...
[2025-02-07 23:49:49,110 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454721d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:49:49, skipping insertion in model container
[2025-02-07 23:49:49,110 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:49:33" (2/3) ...
[2025-02-07 23:49:49,110 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454721d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:49:49, skipping insertion in model container
[2025-02-07 23:49:49,110 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:49:49" (3/3) ...
[2025-02-07 23:49:49,111 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.production_cell.4.prop1-back-serstep.c
[2025-02-07 23:49:49,124 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-07 23:49:49,125 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.production_cell.4.prop1-back-serstep.c that has 1 procedures, 3692 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-07 23:49:49,223 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-07 23:49:49,241 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;@6faeb764, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-07 23:49:49,241 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-07 23:49:49,251 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3692 states, 3690 states have (on average 1.5) internal successors, (5535), 3691 states have internal predecessors, (5535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:49:49,268 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 393
[2025-02-07 23:49:49,268 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:49:49,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:49:49,270 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:49:49,273 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:49:49,273 INFO  L85        PathProgramCache]: Analyzing trace with hash 691168894, now seen corresponding path program 1 times
[2025-02-07 23:49:49,278 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:49:49,278 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967203481]
[2025-02-07 23:49:49,278 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:49:49,279 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:49:49,406 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 392 statements into 1 equivalence classes.
[2025-02-07 23:49:49,704 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 392 of 392 statements.
[2025-02-07 23:49:49,705 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:49:49,705 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:49:50,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 23:49:50,860 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:49:50,861 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967203481]
[2025-02-07 23:49:50,861 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967203481] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:49:50,861 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:49:50,862 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:49:50,863 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95594102]
[2025-02-07 23:49:50,864 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:49:50,868 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:49:50,868 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:49:50,882 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:49:50,882 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:49:50,889 INFO  L87              Difference]: Start difference. First operand  has 3692 states, 3690 states have (on average 1.5) internal successors, (5535), 3691 states have internal predecessors, (5535), 0 states have call successors, (0), 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 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:49:52,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:49:52,487 INFO  L93              Difference]: Finished difference Result 7179 states and 10765 transitions.
[2025-02-07 23:49:52,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:49:52,489 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 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 392
[2025-02-07 23:49:52,491 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:49:52,533 INFO  L225             Difference]: With dead ends: 7179
[2025-02-07 23:49:52,533 INFO  L226             Difference]: Without dead ends: 3692
[2025-02-07 23:49:52,548 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
[2025-02-07 23:49:52,554 INFO  L435           NwaCegarLoop]: 4609 mSDtfsCounter, 0 mSDsluCounter, 9213 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13822 SdHoareTripleChecker+Invalid, 2773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-02-07 23:49:52,554 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13822 Invalid, 2773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2773 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-02-07 23:49:52,585 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3692 states.
[2025-02-07 23:49:52,691 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3692 to 3692.
[2025-02-07 23:49:52,698 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3692 states, 3691 states have (on average 1.49932267678136) internal successors, (5534), 3691 states have internal predecessors, (5534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:49:52,713 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3692 states to 3692 states and 5534 transitions.
[2025-02-07 23:49:52,714 INFO  L78                 Accepts]: Start accepts. Automaton has 3692 states and 5534 transitions. Word has length 392
[2025-02-07 23:49:52,716 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:49:52,716 INFO  L471      AbstractCegarLoop]: Abstraction has 3692 states and 5534 transitions.
[2025-02-07 23:49:52,717 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:49:52,717 INFO  L276                IsEmpty]: Start isEmpty. Operand 3692 states and 5534 transitions.
[2025-02-07 23:49:52,722 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 394
[2025-02-07 23:49:52,722 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:49:52,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:49:52,722 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-07 23:49:52,723 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:49:52,723 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:49:52,723 INFO  L85        PathProgramCache]: Analyzing trace with hash -43916534, now seen corresponding path program 1 times
[2025-02-07 23:49:52,723 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:49:52,723 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635797429]
[2025-02-07 23:49:52,724 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:49:52,724 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:49:52,785 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 393 statements into 1 equivalence classes.
[2025-02-07 23:49:52,877 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 393 of 393 statements.
[2025-02-07 23:49:52,877 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:49:52,877 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:49:53,320 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 23:49:53,320 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:49:53,320 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635797429]
[2025-02-07 23:49:53,320 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635797429] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:49:53,320 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:49:53,320 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:49:53,320 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782699028]
[2025-02-07 23:49:53,321 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:49:53,322 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:49:53,323 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:49:53,323 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:49:53,323 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:49:53,323 INFO  L87              Difference]: Start difference. First operand 3692 states and 5534 transitions. Second operand  has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:49:55,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:49:55,097 INFO  L93              Difference]: Finished difference Result 7181 states and 10764 transitions.
[2025-02-07 23:49:55,097 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:49:55,098 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 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 393
[2025-02-07 23:49:55,099 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:49:55,121 INFO  L225             Difference]: With dead ends: 7181
[2025-02-07 23:49:55,121 INFO  L226             Difference]: Without dead ends: 3694
[2025-02-07 23:49:55,130 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
[2025-02-07 23:49:55,130 INFO  L435           NwaCegarLoop]: 4609 mSDtfsCounter, 0 mSDsluCounter, 9210 mSDsCounter, 0 mSdLazyCounter, 2776 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13819 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2025-02-07 23:49:55,130 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13819 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2776 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2025-02-07 23:49:55,159 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3694 states.
[2025-02-07 23:49:55,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3694.
[2025-02-07 23:49:55,210 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3694 states, 3693 states have (on average 1.4990522610343895) internal successors, (5536), 3693 states have internal predecessors, (5536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:49:55,216 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 5536 transitions.
[2025-02-07 23:49:55,216 INFO  L78                 Accepts]: Start accepts. Automaton has 3694 states and 5536 transitions. Word has length 393
[2025-02-07 23:49:55,217 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:49:55,217 INFO  L471      AbstractCegarLoop]: Abstraction has 3694 states and 5536 transitions.
[2025-02-07 23:49:55,217 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:49:55,217 INFO  L276                IsEmpty]: Start isEmpty. Operand 3694 states and 5536 transitions.
[2025-02-07 23:49:55,221 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 395
[2025-02-07 23:49:55,221 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:49:55,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:49:55,222 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-07 23:49:55,222 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:49:55,222 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:49:55,223 INFO  L85        PathProgramCache]: Analyzing trace with hash 570101753, now seen corresponding path program 1 times
[2025-02-07 23:49:55,223 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:49:55,223 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930156580]
[2025-02-07 23:49:55,223 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:49:55,223 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:49:55,334 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 394 statements into 1 equivalence classes.
[2025-02-07 23:49:55,395 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 394 of 394 statements.
[2025-02-07 23:49:55,395 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:49:55,395 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:49:56,365 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 23:49:56,367 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:49:56,367 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930156580]
[2025-02-07 23:49:56,367 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930156580] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:49:56,367 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:49:56,367 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:49:56,368 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510988637]
[2025-02-07 23:49:56,368 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:49:56,368 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-02-07 23:49:56,368 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:49:56,369 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-02-07 23:49:56,369 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-02-07 23:49:56,369 INFO  L87              Difference]: Start difference. First operand 3694 states and 5536 transitions. Second operand  has 6 states, 6 states have (on average 65.66666666666667) internal successors, (394), 5 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:49:58,890 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:49:58,891 INFO  L93              Difference]: Finished difference Result 10658 states and 15975 transitions.
[2025-02-07 23:49:58,896 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-02-07 23:49:58,896 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 65.66666666666667) internal successors, (394), 5 states have internal predecessors, (394), 0 states have call successors, (0), 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 394
[2025-02-07 23:49:58,901 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:49:58,933 INFO  L225             Difference]: With dead ends: 10658
[2025-02-07 23:49:58,934 INFO  L226             Difference]: Without dead ends: 7169
[2025-02-07 23:49:58,940 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2025-02-07 23:49:58,943 INFO  L435           NwaCegarLoop]: 4605 mSDtfsCounter, 5280 mSDsluCounter, 18160 mSDsCounter, 0 mSdLazyCounter, 4587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5280 SdHoareTripleChecker+Valid, 22765 SdHoareTripleChecker+Invalid, 4587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2025-02-07 23:49:58,944 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5280 Valid, 22765 Invalid, 4587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4587 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2025-02-07 23:49:58,953 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7169 states.
[2025-02-07 23:49:59,022 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 4260.
[2025-02-07 23:49:59,028 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4260 states, 4259 states have (on average 1.498943413946936) internal successors, (6384), 4259 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:49:59,033 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 6384 transitions.
[2025-02-07 23:49:59,034 INFO  L78                 Accepts]: Start accepts. Automaton has 4260 states and 6384 transitions. Word has length 394
[2025-02-07 23:49:59,034 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:49:59,035 INFO  L471      AbstractCegarLoop]: Abstraction has 4260 states and 6384 transitions.
[2025-02-07 23:49:59,035 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 65.66666666666667) internal successors, (394), 5 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:49:59,035 INFO  L276                IsEmpty]: Start isEmpty. Operand 4260 states and 6384 transitions.
[2025-02-07 23:49:59,093 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2138
[2025-02-07 23:49:59,093 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:49:59,095 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:49:59,095 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-07 23:49:59,095 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:49:59,097 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:49:59,097 INFO  L85        PathProgramCache]: Analyzing trace with hash -148254633, now seen corresponding path program 1 times
[2025-02-07 23:49:59,098 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:49:59,098 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885790297]
[2025-02-07 23:49:59,098 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:49:59,098 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:49:59,297 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2137 statements into 1 equivalence classes.
[2025-02-07 23:50:00,609 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2137 of 2137 statements.
[2025-02-07 23:50:00,609 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:50:00,609 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:50:04,934 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked.
[2025-02-07 23:50:04,935 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:50:04,935 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885790297]
[2025-02-07 23:50:04,935 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885790297] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:50:04,935 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:50:04,935 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:50:04,935 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60113542]
[2025-02-07 23:50:04,936 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:50:04,937 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:50:04,938 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:50:04,939 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:50:04,939 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:50:04,940 INFO  L87              Difference]: Start difference. First operand 4260 states and 6384 transitions. Second operand  has 5 states, 5 states have (on average 371.2) internal successors, (1856), 5 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:06,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:50:06,495 INFO  L93              Difference]: Finished difference Result 7753 states and 11618 transitions.
[2025-02-07 23:50:06,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:50:06,497 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 371.2) internal successors, (1856), 5 states have internal predecessors, (1856), 0 states have call successors, (0), 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 2137
[2025-02-07 23:50:06,499 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:50:06,509 INFO  L225             Difference]: With dead ends: 7753
[2025-02-07 23:50:06,510 INFO  L226             Difference]: Without dead ends: 4264
[2025-02-07 23:50:06,513 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
[2025-02-07 23:50:06,513 INFO  L435           NwaCegarLoop]: 4609 mSDtfsCounter, 0 mSDsluCounter, 13814 mSDsCounter, 0 mSdLazyCounter, 3704 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18423 SdHoareTripleChecker+Invalid, 3705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-02-07 23:50:06,514 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18423 Invalid, 3705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3704 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-02-07 23:50:06,517 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4264 states.
[2025-02-07 23:50:06,556 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 4260.
[2025-02-07 23:50:06,561 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4260 states, 4259 states have (on average 1.498943413946936) internal successors, (6384), 4259 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:06,567 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 6384 transitions.
[2025-02-07 23:50:06,568 INFO  L78                 Accepts]: Start accepts. Automaton has 4260 states and 6384 transitions. Word has length 2137
[2025-02-07 23:50:06,570 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:50:06,570 INFO  L471      AbstractCegarLoop]: Abstraction has 4260 states and 6384 transitions.
[2025-02-07 23:50:06,571 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 371.2) internal successors, (1856), 5 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:06,571 INFO  L276                IsEmpty]: Start isEmpty. Operand 4260 states and 6384 transitions.
[2025-02-07 23:50:06,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2139
[2025-02-07 23:50:06,611 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:50:06,612 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:50:06,612 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-07 23:50:06,612 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:50:06,613 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:50:06,613 INFO  L85        PathProgramCache]: Analyzing trace with hash 1587441265, now seen corresponding path program 1 times
[2025-02-07 23:50:06,613 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:50:06,613 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107469609]
[2025-02-07 23:50:06,613 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:50:06,613 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:50:06,841 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2138 statements into 1 equivalence classes.
[2025-02-07 23:50:07,483 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2138 of 2138 statements.
[2025-02-07 23:50:07,484 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:50:07,484 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:50:10,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked.
[2025-02-07 23:50:10,681 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:50:10,681 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107469609]
[2025-02-07 23:50:10,681 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107469609] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:50:10,681 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:50:10,681 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:50:10,685 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318544256]
[2025-02-07 23:50:10,685 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:50:10,687 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:50:10,687 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:50:10,688 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:50:10,688 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:50:10,693 INFO  L87              Difference]: Start difference. First operand 4260 states and 6384 transitions. Second operand  has 4 states, 4 states have (on average 464.75) internal successors, (1859), 4 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:11,851 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:50:11,851 INFO  L93              Difference]: Finished difference Result 7757 states and 11624 transitions.
[2025-02-07 23:50:11,852 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:50:11,853 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 464.75) internal successors, (1859), 4 states have internal predecessors, (1859), 0 states have call successors, (0), 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 2138
[2025-02-07 23:50:11,862 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:50:11,883 INFO  L225             Difference]: With dead ends: 7757
[2025-02-07 23:50:11,883 INFO  L226             Difference]: Without dead ends: 4264
[2025-02-07 23:50:11,891 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
[2025-02-07 23:50:11,892 INFO  L435           NwaCegarLoop]: 4609 mSDtfsCounter, 0 mSDsluCounter, 9210 mSDsCounter, 0 mSdLazyCounter, 2776 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13819 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2025-02-07 23:50:11,892 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13819 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2776 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2025-02-07 23:50:11,897 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4264 states.
[2025-02-07 23:50:11,955 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 4262.
[2025-02-07 23:50:11,958 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4262 states, 4261 states have (on average 1.4987092231870454) internal successors, (6386), 4261 states have internal predecessors, (6386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:11,968 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4262 states to 4262 states and 6386 transitions.
[2025-02-07 23:50:11,969 INFO  L78                 Accepts]: Start accepts. Automaton has 4262 states and 6386 transitions. Word has length 2138
[2025-02-07 23:50:11,971 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:50:11,971 INFO  L471      AbstractCegarLoop]: Abstraction has 4262 states and 6386 transitions.
[2025-02-07 23:50:11,971 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 464.75) internal successors, (1859), 4 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:11,971 INFO  L276                IsEmpty]: Start isEmpty. Operand 4262 states and 6386 transitions.
[2025-02-07 23:50:11,992 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2140
[2025-02-07 23:50:11,993 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:50:11,995 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:50:11,995 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-02-07 23:50:11,995 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:50:11,996 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:50:11,997 INFO  L85        PathProgramCache]: Analyzing trace with hash -1629125806, now seen corresponding path program 1 times
[2025-02-07 23:50:11,997 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:50:11,997 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198945944]
[2025-02-07 23:50:11,997 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:50:11,997 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:50:12,218 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2139 statements into 1 equivalence classes.
[2025-02-07 23:50:13,404 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2139 of 2139 statements.
[2025-02-07 23:50:13,404 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:50:13,404 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:50:16,566 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked.
[2025-02-07 23:50:16,568 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:50:16,569 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198945944]
[2025-02-07 23:50:16,569 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198945944] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:50:16,569 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:50:16,569 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:50:16,569 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122120672]
[2025-02-07 23:50:16,569 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:50:16,571 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:50:16,572 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:50:16,573 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:50:16,575 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:50:16,575 INFO  L87              Difference]: Start difference. First operand 4262 states and 6386 transitions. Second operand  has 5 states, 5 states have (on average 372.4) internal successors, (1862), 5 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:18,015 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:50:18,015 INFO  L93              Difference]: Finished difference Result 7765 states and 11634 transitions.
[2025-02-07 23:50:18,016 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:50:18,016 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 372.4) internal successors, (1862), 5 states have internal predecessors, (1862), 0 states have call successors, (0), 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 2139
[2025-02-07 23:50:18,022 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:50:18,034 INFO  L225             Difference]: With dead ends: 7765
[2025-02-07 23:50:18,034 INFO  L226             Difference]: Without dead ends: 4266
[2025-02-07 23:50:18,038 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
[2025-02-07 23:50:18,039 INFO  L435           NwaCegarLoop]: 4609 mSDtfsCounter, 0 mSDsluCounter, 13814 mSDsCounter, 0 mSdLazyCounter, 3704 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18423 SdHoareTripleChecker+Invalid, 3705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-02-07 23:50:18,039 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18423 Invalid, 3705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3704 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-02-07 23:50:18,043 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4266 states.
[2025-02-07 23:50:18,080 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 4264.
[2025-02-07 23:50:18,084 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4264 states, 4263 states have (on average 1.4984752521698335) internal successors, (6388), 4263 states have internal predecessors, (6388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:18,087 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 6388 transitions.
[2025-02-07 23:50:18,087 INFO  L78                 Accepts]: Start accepts. Automaton has 4264 states and 6388 transitions. Word has length 2139
[2025-02-07 23:50:18,089 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:50:18,089 INFO  L471      AbstractCegarLoop]: Abstraction has 4264 states and 6388 transitions.
[2025-02-07 23:50:18,089 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 372.4) internal successors, (1862), 5 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:18,089 INFO  L276                IsEmpty]: Start isEmpty. Operand 4264 states and 6388 transitions.
[2025-02-07 23:50:18,110 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2141
[2025-02-07 23:50:18,111 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:50:18,112 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:50:18,112 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-02-07 23:50:18,112 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:50:18,113 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:50:18,113 INFO  L85        PathProgramCache]: Analyzing trace with hash 905166070, now seen corresponding path program 1 times
[2025-02-07 23:50:18,113 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:50:18,113 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500272268]
[2025-02-07 23:50:18,114 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:50:18,114 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:50:18,285 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2140 statements into 1 equivalence classes.
[2025-02-07 23:50:18,951 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2140 of 2140 statements.
[2025-02-07 23:50:18,952 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:50:18,952 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:50:22,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2025-02-07 23:50:22,070 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:50:22,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500272268]
[2025-02-07 23:50:22,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500272268] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:50:22,070 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:50:22,070 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:50:22,070 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083443496]
[2025-02-07 23:50:22,070 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:50:22,072 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:50:22,072 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:50:22,074 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:50:22,074 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:50:22,074 INFO  L87              Difference]: Start difference. First operand 4264 states and 6388 transitions. Second operand  has 5 states, 5 states have (on average 373.0) internal successors, (1865), 5 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:23,337 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:50:23,338 INFO  L93              Difference]: Finished difference Result 7773 states and 11644 transitions.
[2025-02-07 23:50:23,338 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:50:23,342 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 373.0) internal successors, (1865), 5 states have internal predecessors, (1865), 0 states have call successors, (0), 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 2140
[2025-02-07 23:50:23,344 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:50:23,357 INFO  L225             Difference]: With dead ends: 7773
[2025-02-07 23:50:23,357 INFO  L226             Difference]: Without dead ends: 4268
[2025-02-07 23:50:23,361 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
[2025-02-07 23:50:23,361 INFO  L435           NwaCegarLoop]: 4609 mSDtfsCounter, 0 mSDsluCounter, 9210 mSDsCounter, 0 mSdLazyCounter, 2777 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13819 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-02-07 23:50:23,362 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13819 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2777 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-02-07 23:50:23,367 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4268 states.
[2025-02-07 23:50:23,413 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4268 to 4266.
[2025-02-07 23:50:23,416 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4266 states, 4265 states have (on average 1.4982415005861665) internal successors, (6390), 4265 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:23,421 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 6390 transitions.
[2025-02-07 23:50:23,421 INFO  L78                 Accepts]: Start accepts. Automaton has 4266 states and 6390 transitions. Word has length 2140
[2025-02-07 23:50:23,423 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:50:23,423 INFO  L471      AbstractCegarLoop]: Abstraction has 4266 states and 6390 transitions.
[2025-02-07 23:50:23,423 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 373.0) internal successors, (1865), 5 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:23,423 INFO  L276                IsEmpty]: Start isEmpty. Operand 4266 states and 6390 transitions.
[2025-02-07 23:50:23,466 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2142
[2025-02-07 23:50:23,466 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:50:23,468 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:50:23,468 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-02-07 23:50:23,468 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:50:23,469 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:50:23,469 INFO  L85        PathProgramCache]: Analyzing trace with hash 370323277, now seen corresponding path program 1 times
[2025-02-07 23:50:23,469 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:50:23,470 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605955275]
[2025-02-07 23:50:23,470 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:50:23,471 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:50:23,693 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2141 statements into 1 equivalence classes.
[2025-02-07 23:50:24,629 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2141 of 2141 statements.
[2025-02-07 23:50:24,629 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:50:24,629 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:50:27,334 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2025-02-07 23:50:27,334 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:50:27,334 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605955275]
[2025-02-07 23:50:27,334 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605955275] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:50:27,334 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:50:27,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:50:27,335 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428919337]
[2025-02-07 23:50:27,335 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:50:27,336 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:50:27,336 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:50:27,337 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:50:27,337 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:50:27,338 INFO  L87              Difference]: Start difference. First operand 4266 states and 6390 transitions. Second operand  has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:28,506 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:50:28,506 INFO  L93              Difference]: Finished difference Result 7781 states and 11654 transitions.
[2025-02-07 23:50:28,507 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:50:28,507 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 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 2141
[2025-02-07 23:50:28,509 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:50:28,518 INFO  L225             Difference]: With dead ends: 7781
[2025-02-07 23:50:28,518 INFO  L226             Difference]: Without dead ends: 4270
[2025-02-07 23:50:28,520 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
[2025-02-07 23:50:28,521 INFO  L435           NwaCegarLoop]: 4609 mSDtfsCounter, 0 mSDsluCounter, 9210 mSDsCounter, 0 mSdLazyCounter, 2776 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13819 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2025-02-07 23:50:28,521 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13819 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2776 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2025-02-07 23:50:28,525 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4270 states.
[2025-02-07 23:50:28,566 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4270 to 4268.
[2025-02-07 23:50:28,570 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4268 states, 4267 states have (on average 1.49800796812749) internal successors, (6392), 4267 states have internal predecessors, (6392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:28,574 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4268 states to 4268 states and 6392 transitions.
[2025-02-07 23:50:28,575 INFO  L78                 Accepts]: Start accepts. Automaton has 4268 states and 6392 transitions. Word has length 2141
[2025-02-07 23:50:28,576 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:50:28,576 INFO  L471      AbstractCegarLoop]: Abstraction has 4268 states and 6392 transitions.
[2025-02-07 23:50:28,577 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:28,577 INFO  L276                IsEmpty]: Start isEmpty. Operand 4268 states and 6392 transitions.
[2025-02-07 23:50:28,619 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2143
[2025-02-07 23:50:28,620 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:50:28,621 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:50:28,621 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-02-07 23:50:28,621 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:50:28,622 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:50:28,623 INFO  L85        PathProgramCache]: Analyzing trace with hash -557016453, now seen corresponding path program 1 times
[2025-02-07 23:50:28,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:50:28,623 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940569584]
[2025-02-07 23:50:28,623 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:50:28,623 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:50:28,849 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2142 statements into 1 equivalence classes.
[2025-02-07 23:50:29,758 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2142 of 2142 statements.
[2025-02-07 23:50:29,758 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:50:29,758 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:50:32,762 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2025-02-07 23:50:32,763 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:50:32,763 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940569584]
[2025-02-07 23:50:32,763 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940569584] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:50:32,763 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:50:32,763 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:50:32,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876793961]
[2025-02-07 23:50:32,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:50:32,765 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:50:32,765 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:50:32,766 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:50:32,766 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:50:32,766 INFO  L87              Difference]: Start difference. First operand 4268 states and 6392 transitions. Second operand  has 4 states, 4 states have (on average 467.75) internal successors, (1871), 4 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:33,745 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:50:33,745 INFO  L93              Difference]: Finished difference Result 7789 states and 11664 transitions.
[2025-02-07 23:50:33,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:50:33,746 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 467.75) internal successors, (1871), 4 states have internal predecessors, (1871), 0 states have call successors, (0), 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 2142
[2025-02-07 23:50:33,748 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:50:33,753 INFO  L225             Difference]: With dead ends: 7789
[2025-02-07 23:50:33,753 INFO  L226             Difference]: Without dead ends: 4272
[2025-02-07 23:50:33,756 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
[2025-02-07 23:50:33,757 INFO  L435           NwaCegarLoop]: 4609 mSDtfsCounter, 0 mSDsluCounter, 9210 mSDsCounter, 0 mSdLazyCounter, 2776 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13819 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-02-07 23:50:33,757 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13819 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2776 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-02-07 23:50:33,760 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4272 states.
[2025-02-07 23:50:33,786 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 4270.
[2025-02-07 23:50:33,789 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4270 states, 4269 states have (on average 1.4977746544858281) internal successors, (6394), 4269 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:33,793 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4270 states to 4270 states and 6394 transitions.
[2025-02-07 23:50:33,793 INFO  L78                 Accepts]: Start accepts. Automaton has 4270 states and 6394 transitions. Word has length 2142
[2025-02-07 23:50:33,794 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:50:33,794 INFO  L471      AbstractCegarLoop]: Abstraction has 4270 states and 6394 transitions.
[2025-02-07 23:50:33,795 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 467.75) internal successors, (1871), 4 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:33,795 INFO  L276                IsEmpty]: Start isEmpty. Operand 4270 states and 6394 transitions.
[2025-02-07 23:50:33,815 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2144
[2025-02-07 23:50:33,816 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:50:33,817 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:50:33,817 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-02-07 23:50:33,817 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:50:33,818 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:50:33,818 INFO  L85        PathProgramCache]: Analyzing trace with hash -255900600, now seen corresponding path program 1 times
[2025-02-07 23:50:33,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:50:33,818 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532664997]
[2025-02-07 23:50:33,819 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:50:33,819 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:50:33,990 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2143 statements into 1 equivalence classes.
[2025-02-07 23:50:34,610 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2143 of 2143 statements.
[2025-02-07 23:50:34,610 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:50:34,610 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:50:37,458 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked.
[2025-02-07 23:50:37,468 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:50:37,469 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532664997]
[2025-02-07 23:50:37,469 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532664997] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:50:37,469 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:50:37,469 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:50:37,469 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595686989]
[2025-02-07 23:50:37,469 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:50:37,470 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:50:37,471 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:50:37,472 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:50:37,472 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:50:37,472 INFO  L87              Difference]: Start difference. First operand 4270 states and 6394 transitions. Second operand  has 5 states, 5 states have (on average 374.8) internal successors, (1874), 5 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:39,059 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:50:39,060 INFO  L93              Difference]: Finished difference Result 7797 states and 11674 transitions.
[2025-02-07 23:50:39,060 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:50:39,060 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 374.8) internal successors, (1874), 5 states have internal predecessors, (1874), 0 states have call successors, (0), 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 2143
[2025-02-07 23:50:39,062 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:50:39,067 INFO  L225             Difference]: With dead ends: 7797
[2025-02-07 23:50:39,067 INFO  L226             Difference]: Without dead ends: 4274
[2025-02-07 23:50:39,070 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
[2025-02-07 23:50:39,071 INFO  L435           NwaCegarLoop]: 4609 mSDtfsCounter, 0 mSDsluCounter, 13814 mSDsCounter, 0 mSdLazyCounter, 3704 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18423 SdHoareTripleChecker+Invalid, 3705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-02-07 23:50:39,072 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18423 Invalid, 3705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3704 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-02-07 23:50:39,076 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4274 states.
[2025-02-07 23:50:39,101 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4274 to 4272.
[2025-02-07 23:50:39,105 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4272 states, 4271 states have (on average 1.4975415593537813) internal successors, (6396), 4271 states have internal predecessors, (6396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:39,108 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 6396 transitions.
[2025-02-07 23:50:39,108 INFO  L78                 Accepts]: Start accepts. Automaton has 4272 states and 6396 transitions. Word has length 2143
[2025-02-07 23:50:39,109 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:50:39,109 INFO  L471      AbstractCegarLoop]: Abstraction has 4272 states and 6396 transitions.
[2025-02-07 23:50:39,110 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 374.8) internal successors, (1874), 5 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:39,110 INFO  L276                IsEmpty]: Start isEmpty. Operand 4272 states and 6396 transitions.
[2025-02-07 23:50:39,129 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2145
[2025-02-07 23:50:39,130 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:50:39,131 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:50:39,131 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2025-02-07 23:50:39,131 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:50:39,132 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:50:39,132 INFO  L85        PathProgramCache]: Analyzing trace with hash 80418560, now seen corresponding path program 1 times
[2025-02-07 23:50:39,133 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:50:39,133 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303190360]
[2025-02-07 23:50:39,133 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:50:39,133 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:50:39,358 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2144 statements into 1 equivalence classes.
[2025-02-07 23:50:40,341 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2144 of 2144 statements.
[2025-02-07 23:50:40,341 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:50:40,341 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:50:43,281 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked.
[2025-02-07 23:50:43,281 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:50:43,281 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303190360]
[2025-02-07 23:50:43,281 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303190360] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:50:43,281 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:50:43,282 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:50:43,282 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790407054]
[2025-02-07 23:50:43,282 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:50:43,283 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:50:43,283 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:50:43,284 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:50:43,284 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:50:43,284 INFO  L87              Difference]: Start difference. First operand 4272 states and 6396 transitions. Second operand  has 5 states, 5 states have (on average 375.4) internal successors, (1877), 5 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:44,483 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:50:44,484 INFO  L93              Difference]: Finished difference Result 7805 states and 11684 transitions.
[2025-02-07 23:50:44,484 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:50:44,484 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 375.4) internal successors, (1877), 5 states have internal predecessors, (1877), 0 states have call successors, (0), 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 2144
[2025-02-07 23:50:44,486 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:50:44,491 INFO  L225             Difference]: With dead ends: 7805
[2025-02-07 23:50:44,491 INFO  L226             Difference]: Without dead ends: 4276
[2025-02-07 23:50:44,495 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
[2025-02-07 23:50:44,496 INFO  L435           NwaCegarLoop]: 4609 mSDtfsCounter, 0 mSDsluCounter, 9210 mSDsCounter, 0 mSdLazyCounter, 2777 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13819 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2025-02-07 23:50:44,496 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13819 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2777 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2025-02-07 23:50:44,500 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4276 states.
[2025-02-07 23:50:44,529 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4274.
[2025-02-07 23:50:44,534 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4274 states, 4273 states have (on average 1.497308682424526) internal successors, (6398), 4273 states have internal predecessors, (6398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:44,538 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 6398 transitions.
[2025-02-07 23:50:44,539 INFO  L78                 Accepts]: Start accepts. Automaton has 4274 states and 6398 transitions. Word has length 2144
[2025-02-07 23:50:44,540 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:50:44,540 INFO  L471      AbstractCegarLoop]: Abstraction has 4274 states and 6398 transitions.
[2025-02-07 23:50:44,540 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 375.4) internal successors, (1877), 5 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:50:44,540 INFO  L276                IsEmpty]: Start isEmpty. Operand 4274 states and 6398 transitions.
[2025-02-07 23:50:44,620 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2146
[2025-02-07 23:50:44,620 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:50:44,621 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2025-02-07 23:50:44,621 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2025-02-07 23:50:44,621 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:50:44,623 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:50:44,623 INFO  L85        PathProgramCache]: Analyzing trace with hash 475607619, now seen corresponding path program 1 times
[2025-02-07 23:50:44,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:50:44,623 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770865268]
[2025-02-07 23:50:44,623 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:50:44,623 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:50:44,780 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2145 statements into 1 equivalence classes.
[2025-02-07 23:50:45,334 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2145 of 2145 statements.
[2025-02-07 23:50:45,334 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:50:45,335 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:50:48,145 INFO  L134       CoverageAnalysis]: Checked inductivity of 288 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked.
[2025-02-07 23:50:48,145 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:50:48,145 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770865268]
[2025-02-07 23:50:48,145 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770865268] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:50:48,145 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:50:48,146 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:50:48,146 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50533636]
[2025-02-07 23:50:48,146 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:50:48,147 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:50:48,147 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:50:48,148 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:50:48,148 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:50:48,149 INFO  L87              Difference]: Start difference. First operand 4274 states and 6398 transitions. Second operand  has 4 states, 4 states have (on average 470.0) internal successors, (1880), 4 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)