./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.exit.3.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.exit.3.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 c925a6f98beb68554dad19e40133b68567f6a5d9c8df4b887013b7156199c725
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-48c9605-m
[2025-02-07 23:03:48,733 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-07 23:03:48,826 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-02-07 23:03:48,833 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-07 23:03:48,836 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-07 23:03:48,862 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-07 23:03:48,863 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-07 23:03:48,863 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-07 23:03:48,864 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-07 23:03:48,864 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-07 23:03:48,865 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-07 23:03:48,865 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-07 23:03:48,865 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-07 23:03:48,866 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-07 23:03:48,866 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-07 23:03:48,866 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-07 23:03:48,867 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-07 23:03:48,867 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-07 23:03:48,867 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-07 23:03:48,867 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-07 23:03:48,867 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-07 23:03:48,868 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-07 23:03:48,868 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-07 23:03:48,868 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-07 23:03:48,868 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-07 23:03:48,868 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-07 23:03:48,868 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-07 23:03:48,868 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-07 23:03:48,868 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-07 23:03:48,868 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 23:03:48,869 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-07 23:03:48,869 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-07 23:03:48,869 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-07 23:03:48,869 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-07 23:03:48,869 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-07 23:03:48,869 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-07 23:03:48,869 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-07 23:03:48,869 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-07 23:03:48,869 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-07 23:03:48,869 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-07 23:03:48,869 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 -> c925a6f98beb68554dad19e40133b68567f6a5d9c8df4b887013b7156199c725
[2025-02-07 23:03:49,220 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-07 23:03:49,233 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-07 23:03:49,235 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-07 23:03:49,238 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-07 23:03:49,239 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-07 23:03:49,240 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.exit.3.prop1-back-serstep.c
[2025-02-07 23:03:50,683 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e687b603c/4cf1eb17bb624bddbc0cc120da66dd3d/FLAGd6742ce87
[2025-02-07 23:03:51,335 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-07 23:03:51,336 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.exit.3.prop1-back-serstep.c
[2025-02-07 23:03:51,378 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e687b603c/4cf1eb17bb624bddbc0cc120da66dd3d/FLAGd6742ce87
[2025-02-07 23:03:51,399 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e687b603c/4cf1eb17bb624bddbc0cc120da66dd3d
[2025-02-07 23:03:51,403 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-07 23:03:51,404 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-07 23:03:51,405 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-07 23:03:51,405 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-07 23:03:51,408 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-07 23:03:51,409 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:03:51" (1/1) ...
[2025-02-07 23:03:51,410 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d119d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:51, skipping insertion in model container
[2025-02-07 23:03:51,410 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:03:51" (1/1) ...
[2025-02-07 23:03:51,510 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-07 23:03:51,768 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.exit.3.prop1-back-serstep.c[1172,1185]
[2025-02-07 23:03:52,576 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 23:03:52,596 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-07 23:03:52,604 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.exit.3.prop1-back-serstep.c[1172,1185]
[2025-02-07 23:03:53,140 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 23:03:53,156 INFO  L204         MainTranslator]: Completed translation
[2025-02-07 23:03:53,158 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53 WrapperNode
[2025-02-07 23:03:53,158 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-07 23:03:53,159 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-07 23:03:53,160 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-07 23:03:53,160 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-07 23:03:53,167 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:53,313 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:55,067 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16903
[2025-02-07 23:03:55,067 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-07 23:03:55,068 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-07 23:03:55,068 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-07 23:03:55,069 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-07 23:03:55,076 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:55,076 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:55,436 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:55,728 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 23:03:55,729 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:55,729 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:56,387 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:56,439 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:56,519 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:56,579 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:56,808 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-07 23:03:56,809 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-07 23:03:56,809 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-07 23:03:56,809 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-07 23:03:56,810 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (1/1) ...
[2025-02-07 23:03:56,815 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 23:03:56,827 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-07 23:03:56,841 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 23:03:56,844 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 23:03:56,865 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-07 23:03:56,866 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-07 23:03:56,866 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-07 23:03:56,866 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-07 23:03:57,926 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-07 23:03:57,928 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-07 23:04:36,600 INFO  L?                        ?]: Removed 9523 outVars from TransFormulas that were not future-live.
[2025-02-07 23:04:36,600 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-07 23:04:37,027 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-07 23:04:37,028 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-07 23:04:37,028 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:04:37 BoogieIcfgContainer
[2025-02-07 23:04:37,028 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-07 23:04:37,030 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-07 23:04:37,030 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-07 23:04:37,034 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-07 23:04:37,035 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:03:51" (1/3) ...
[2025-02-07 23:04:37,036 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619303c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:04:37, skipping insertion in model container
[2025-02-07 23:04:37,037 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:03:53" (2/3) ...
[2025-02-07 23:04:37,037 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619303c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:04:37, skipping insertion in model container
[2025-02-07 23:04:37,037 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:04:37" (3/3) ...
[2025-02-07 23:04:37,038 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.exit.3.prop1-back-serstep.c
[2025-02-07 23:04:37,054 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-07 23:04:37,055 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.exit.3.prop1-back-serstep.c that has 1 procedures, 5644 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-07 23:04:37,200 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-07 23:04:37,211 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;@3d346b30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-07 23:04:37,212 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-07 23:04:37,229 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5644 states, 5642 states have (on average 1.5) internal successors, (8463), 5643 states have internal predecessors, (8463), 0 states have call successors, (0), 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 23:04:37,257 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 533
[2025-02-07 23:04:37,257 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:04:37,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:04:37,259 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:04:37,263 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:04:37,264 INFO  L85        PathProgramCache]: Analyzing trace with hash 355175635, now seen corresponding path program 1 times
[2025-02-07 23:04:37,270 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:04:37,270 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519683007]
[2025-02-07 23:04:37,271 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:04:37,271 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:04:37,481 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 532 statements into 1 equivalence classes.
[2025-02-07 23:04:37,911 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 532 of 532 statements.
[2025-02-07 23:04:37,912 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:04:37,912 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:04:39,757 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 23:04:39,759 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:04:39,759 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519683007]
[2025-02-07 23:04:39,760 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519683007] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:04:39,760 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:04:39,761 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:04:39,762 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888608422]
[2025-02-07 23:04:39,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:04:39,768 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:04:39,768 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:04:39,790 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:04:39,791 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:04:39,806 INFO  L87              Difference]: Start difference. First operand  has 5644 states, 5642 states have (on average 1.5) internal successors, (8463), 5643 states have internal predecessors, (8463), 0 states have call successors, (0), 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 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 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 23:04:42,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:04:42,833 INFO  L93              Difference]: Finished difference Result 11079 states and 16615 transitions.
[2025-02-07 23:04:42,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:04:42,835 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 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 532
[2025-02-07 23:04:42,838 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:04:42,887 INFO  L225             Difference]: With dead ends: 11079
[2025-02-07 23:04:42,887 INFO  L226             Difference]: Without dead ends: 5644
[2025-02-07 23:04:42,905 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 23:04:42,909 INFO  L435           NwaCegarLoop]: 7049 mSDtfsCounter, 0 mSDsluCounter, 14093 mSDsCounter, 0 mSdLazyCounter, 4237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21142 SdHoareTripleChecker+Invalid, 4237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2025-02-07 23:04:42,910 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21142 Invalid, 4237 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4237 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2025-02-07 23:04:42,936 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5644 states.
[2025-02-07 23:04:43,094 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5644 to 5644.
[2025-02-07 23:04:43,107 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5644 states, 5643 states have (on average 1.4995569732411838) internal successors, (8462), 5643 states have internal predecessors, (8462), 0 states have call successors, (0), 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 23:04:43,130 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5644 states to 5644 states and 8462 transitions.
[2025-02-07 23:04:43,133 INFO  L78                 Accepts]: Start accepts. Automaton has 5644 states and 8462 transitions. Word has length 532
[2025-02-07 23:04:43,135 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:04:43,137 INFO  L471      AbstractCegarLoop]: Abstraction has 5644 states and 8462 transitions.
[2025-02-07 23:04:43,138 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 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 23:04:43,138 INFO  L276                IsEmpty]: Start isEmpty. Operand 5644 states and 8462 transitions.
[2025-02-07 23:04:43,149 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 534
[2025-02-07 23:04:43,149 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:04:43,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:04:43,150 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-07 23:04:43,151 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:04:43,152 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:04:43,152 INFO  L85        PathProgramCache]: Analyzing trace with hash -1869770045, now seen corresponding path program 1 times
[2025-02-07 23:04:43,152 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:04:43,153 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578127059]
[2025-02-07 23:04:43,153 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:04:43,153 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:04:43,261 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 533 statements into 1 equivalence classes.
[2025-02-07 23:04:43,384 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 533 of 533 statements.
[2025-02-07 23:04:43,384 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:04:43,384 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:04:44,182 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 23:04:44,183 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:04:44,183 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578127059]
[2025-02-07 23:04:44,183 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578127059] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:04:44,183 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:04:44,184 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:04:44,184 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423704216]
[2025-02-07 23:04:44,184 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:04:44,186 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:04:44,187 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:04:44,187 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:04:44,188 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:04:44,188 INFO  L87              Difference]: Start difference. First operand 5644 states and 8462 transitions. Second operand  has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 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 23:04:46,687 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:04:46,687 INFO  L93              Difference]: Finished difference Result 11081 states and 16614 transitions.
[2025-02-07 23:04:46,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:04:46,688 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 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 533
[2025-02-07 23:04:46,688 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:04:46,710 INFO  L225             Difference]: With dead ends: 11081
[2025-02-07 23:04:46,711 INFO  L226             Difference]: Without dead ends: 5646
[2025-02-07 23:04:46,719 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 23:04:46,721 INFO  L435           NwaCegarLoop]: 7049 mSDtfsCounter, 0 mSDsluCounter, 14090 mSDsCounter, 0 mSdLazyCounter, 4240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21139 SdHoareTripleChecker+Invalid, 4240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2025-02-07 23:04:46,721 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21139 Invalid, 4240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4240 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2025-02-07 23:04:46,733 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5646 states.
[2025-02-07 23:04:46,814 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5646 to 5646.
[2025-02-07 23:04:46,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5646 states, 5645 states have (on average 1.499379982285208) internal successors, (8464), 5645 states have internal predecessors, (8464), 0 states have call successors, (0), 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 23:04:46,832 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5646 states to 5646 states and 8464 transitions.
[2025-02-07 23:04:46,833 INFO  L78                 Accepts]: Start accepts. Automaton has 5646 states and 8464 transitions. Word has length 533
[2025-02-07 23:04:46,833 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:04:46,834 INFO  L471      AbstractCegarLoop]: Abstraction has 5646 states and 8464 transitions.
[2025-02-07 23:04:46,834 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 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 23:04:46,834 INFO  L276                IsEmpty]: Start isEmpty. Operand 5646 states and 8464 transitions.
[2025-02-07 23:04:46,838 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 535
[2025-02-07 23:04:46,838 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:04:46,838 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:04:46,839 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-07 23:04:46,839 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:04:46,839 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:04:46,840 INFO  L85        PathProgramCache]: Analyzing trace with hash -196779314, now seen corresponding path program 1 times
[2025-02-07 23:04:46,840 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:04:46,840 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995434875]
[2025-02-07 23:04:46,840 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:04:46,840 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:04:46,939 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 534 statements into 1 equivalence classes.
[2025-02-07 23:04:47,026 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 534 of 534 statements.
[2025-02-07 23:04:47,026 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:04:47,026 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:04:47,889 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 23:04:47,890 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:04:47,890 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995434875]
[2025-02-07 23:04:47,890 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995434875] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:04:47,890 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:04:47,890 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:04:47,890 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058950171]
[2025-02-07 23:04:47,890 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:04:47,891 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:04:47,892 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:04:47,893 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:04:47,893 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:04:47,893 INFO  L87              Difference]: Start difference. First operand 5646 states and 8464 transitions. Second operand  has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 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 23:04:49,855 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:04:49,856 INFO  L93              Difference]: Finished difference Result 11085 states and 16618 transitions.
[2025-02-07 23:04:49,857 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:04:49,858 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 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 534
[2025-02-07 23:04:49,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:04:49,879 INFO  L225             Difference]: With dead ends: 11085
[2025-02-07 23:04:49,879 INFO  L226             Difference]: Without dead ends: 5648
[2025-02-07 23:04:49,888 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 23:04:49,889 INFO  L435           NwaCegarLoop]: 7049 mSDtfsCounter, 0 mSDsluCounter, 14090 mSDsCounter, 0 mSdLazyCounter, 4240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21139 SdHoareTripleChecker+Invalid, 4240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2025-02-07 23:04:49,889 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21139 Invalid, 4240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4240 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2025-02-07 23:04:49,899 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5648 states.
[2025-02-07 23:04:49,975 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5648 to 5648.
[2025-02-07 23:04:49,988 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5648 states, 5647 states have (on average 1.4992031166991322) internal successors, (8466), 5647 states have internal predecessors, (8466), 0 states have call successors, (0), 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 23:04:50,000 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5648 states to 5648 states and 8466 transitions.
[2025-02-07 23:04:50,001 INFO  L78                 Accepts]: Start accepts. Automaton has 5648 states and 8466 transitions. Word has length 534
[2025-02-07 23:04:50,002 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:04:50,002 INFO  L471      AbstractCegarLoop]: Abstraction has 5648 states and 8466 transitions.
[2025-02-07 23:04:50,003 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 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 23:04:50,003 INFO  L276                IsEmpty]: Start isEmpty. Operand 5648 states and 8466 transitions.
[2025-02-07 23:04:50,008 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 536
[2025-02-07 23:04:50,008 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:04:50,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:04:50,009 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-07 23:04:50,009 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:04:50,010 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:04:50,011 INFO  L85        PathProgramCache]: Analyzing trace with hash 83179080, now seen corresponding path program 1 times
[2025-02-07 23:04:50,011 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:04:50,011 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252636846]
[2025-02-07 23:04:50,011 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:04:50,011 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:04:50,214 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 535 statements into 1 equivalence classes.
[2025-02-07 23:04:50,398 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 535 of 535 statements.
[2025-02-07 23:04:50,398 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:04:50,398 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:04:51,173 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 23:04:51,176 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:04:51,176 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252636846]
[2025-02-07 23:04:51,176 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252636846] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:04:51,176 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:04:51,176 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:04:51,177 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229141230]
[2025-02-07 23:04:51,177 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:04:51,177 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-02-07 23:04:51,178 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:04:51,178 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-02-07 23:04:51,178 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-02-07 23:04:51,179 INFO  L87              Difference]: Start difference. First operand 5648 states and 8466 transitions. Second operand  has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 5 states have internal predecessors, (535), 0 states have call successors, (0), 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 23:04:57,587 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:04:57,587 INFO  L93              Difference]: Finished difference Result 25664 states and 38472 transitions.
[2025-02-07 23:04:57,587 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-02-07 23:04:57,588 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 5 states have internal predecessors, (535), 0 states have call successors, (0), 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 535
[2025-02-07 23:04:57,588 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:04:57,616 INFO  L225             Difference]: With dead ends: 25664
[2025-02-07 23:04:57,617 INFO  L226             Difference]: Without dead ends: 11003
[2025-02-07 23:04:57,633 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2025-02-07 23:04:57,634 INFO  L435           NwaCegarLoop]: 7122 mSDtfsCounter, 27402 mSDsluCounter, 26446 mSDsCounter, 0 mSdLazyCounter, 9648 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27402 SdHoareTripleChecker+Valid, 33568 SdHoareTripleChecker+Invalid, 10134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 9648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time
[2025-02-07 23:04:57,634 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [27402 Valid, 33568 Invalid, 10134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [486 Valid, 9648 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time]
[2025-02-07 23:04:57,649 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11003 states.
[2025-02-07 23:04:57,760 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11003 to 6234.
[2025-02-07 23:04:57,769 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6234 states, 6233 states have (on average 1.4991175998716508) internal successors, (9344), 6233 states have internal predecessors, (9344), 0 states have call successors, (0), 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 23:04:57,777 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 9344 transitions.
[2025-02-07 23:04:57,778 INFO  L78                 Accepts]: Start accepts. Automaton has 6234 states and 9344 transitions. Word has length 535
[2025-02-07 23:04:57,779 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:04:57,779 INFO  L471      AbstractCegarLoop]: Abstraction has 6234 states and 9344 transitions.
[2025-02-07 23:04:57,779 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 5 states have internal predecessors, (535), 0 states have call successors, (0), 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 23:04:57,780 INFO  L276                IsEmpty]: Start isEmpty. Operand 6234 states and 9344 transitions.
[2025-02-07 23:04:57,784 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 537
[2025-02-07 23:04:57,784 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:04:57,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:04:57,784 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-07 23:04:57,785 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:04:57,786 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:04:57,786 INFO  L85        PathProgramCache]: Analyzing trace with hash 390473299, now seen corresponding path program 1 times
[2025-02-07 23:04:57,786 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:04:57,786 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371120321]
[2025-02-07 23:04:57,787 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:04:57,787 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:04:57,878 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 536 statements into 1 equivalence classes.
[2025-02-07 23:04:57,962 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 536 of 536 statements.
[2025-02-07 23:04:57,963 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:04:57,963 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:04:58,512 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 23:04:58,512 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:04:58,512 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371120321]
[2025-02-07 23:04:58,512 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371120321] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:04:58,513 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:04:58,513 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:04:58,513 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637195850]
[2025-02-07 23:04:58,513 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:04:58,514 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:04:58,514 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:04:58,514 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:04:58,515 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:04:58,515 INFO  L87              Difference]: Start difference. First operand 6234 states and 9344 transitions. Second operand  has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 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 23:05:00,509 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:05:00,509 INFO  L93              Difference]: Finished difference Result 11675 states and 17500 transitions.
[2025-02-07 23:05:00,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:05:00,510 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 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 536
[2025-02-07 23:05:00,510 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:05:00,518 INFO  L225             Difference]: With dead ends: 11675
[2025-02-07 23:05:00,519 INFO  L226             Difference]: Without dead ends: 6236
[2025-02-07 23:05:00,525 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 23:05:00,526 INFO  L435           NwaCegarLoop]: 7049 mSDtfsCounter, 0 mSDsluCounter, 14090 mSDsCounter, 0 mSdLazyCounter, 4240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21139 SdHoareTripleChecker+Invalid, 4240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2025-02-07 23:05:00,526 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21139 Invalid, 4240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4240 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2025-02-07 23:05:00,534 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6236 states.
[2025-02-07 23:05:00,595 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6236 to 6236.
[2025-02-07 23:05:00,602 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6236 states, 6235 states have (on average 1.4989574979951885) internal successors, (9346), 6235 states have internal predecessors, (9346), 0 states have call successors, (0), 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 23:05:00,610 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6236 states to 6236 states and 9346 transitions.
[2025-02-07 23:05:00,610 INFO  L78                 Accepts]: Start accepts. Automaton has 6236 states and 9346 transitions. Word has length 536
[2025-02-07 23:05:00,611 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:05:00,611 INFO  L471      AbstractCegarLoop]: Abstraction has 6236 states and 9346 transitions.
[2025-02-07 23:05:00,611 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 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 23:05:00,611 INFO  L276                IsEmpty]: Start isEmpty. Operand 6236 states and 9346 transitions.
[2025-02-07 23:05:00,615 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 538
[2025-02-07 23:05:00,615 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:05:00,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:05:00,616 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-02-07 23:05:00,616 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:05:00,616 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:05:00,617 INFO  L85        PathProgramCache]: Analyzing trace with hash -80424162, now seen corresponding path program 1 times
[2025-02-07 23:05:00,617 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:05:00,617 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503595569]
[2025-02-07 23:05:00,617 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:05:00,617 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:05:00,705 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 537 statements into 1 equivalence classes.
[2025-02-07 23:05:00,789 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 537 of 537 statements.
[2025-02-07 23:05:00,789 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:05:00,789 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:05:01,355 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 23:05:01,356 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:05:01,360 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503595569]
[2025-02-07 23:05:01,360 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503595569] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:05:01,360 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:05:01,360 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:05:01,360 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300283611]
[2025-02-07 23:05:01,361 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:05:01,361 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:05:01,361 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:05:01,362 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:05:01,363 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:05:01,364 INFO  L87              Difference]: Start difference. First operand 6236 states and 9346 transitions. Second operand  has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 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 23:05:03,609 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:05:03,610 INFO  L93              Difference]: Finished difference Result 11679 states and 17504 transitions.
[2025-02-07 23:05:03,610 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:05:03,610 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 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 537
[2025-02-07 23:05:03,611 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:05:03,620 INFO  L225             Difference]: With dead ends: 11679
[2025-02-07 23:05:03,620 INFO  L226             Difference]: Without dead ends: 6238
[2025-02-07 23:05:03,626 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 23:05:03,627 INFO  L435           NwaCegarLoop]: 7049 mSDtfsCounter, 0 mSDsluCounter, 21134 mSDsCounter, 0 mSdLazyCounter, 5656 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28183 SdHoareTripleChecker+Invalid, 5657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2025-02-07 23:05:03,627 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28183 Invalid, 5657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5656 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2025-02-07 23:05:03,635 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6238 states.
[2025-02-07 23:05:03,687 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6238 to 6238.
[2025-02-07 23:05:03,695 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6238 states, 6237 states have (on average 1.4987974987974988) internal successors, (9348), 6237 states have internal predecessors, (9348), 0 states have call successors, (0), 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 23:05:03,702 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 9348 transitions.
[2025-02-07 23:05:03,702 INFO  L78                 Accepts]: Start accepts. Automaton has 6238 states and 9348 transitions. Word has length 537
[2025-02-07 23:05:03,703 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:05:03,703 INFO  L471      AbstractCegarLoop]: Abstraction has 6238 states and 9348 transitions.
[2025-02-07 23:05:03,703 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 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 23:05:03,703 INFO  L276                IsEmpty]: Start isEmpty. Operand 6238 states and 9348 transitions.
[2025-02-07 23:05:03,706 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 539
[2025-02-07 23:05:03,706 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:05:03,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:05:03,708 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-02-07 23:05:03,708 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:05:03,708 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:05:03,709 INFO  L85        PathProgramCache]: Analyzing trace with hash 1670279704, now seen corresponding path program 1 times
[2025-02-07 23:05:03,709 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:05:03,709 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022547916]
[2025-02-07 23:05:03,709 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:05:03,709 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:05:03,794 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 538 statements into 1 equivalence classes.
[2025-02-07 23:05:03,855 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 538 of 538 statements.
[2025-02-07 23:05:03,856 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:05:03,856 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:05:04,355 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 23:05:04,356 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:05:04,356 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022547916]
[2025-02-07 23:05:04,356 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022547916] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:05:04,356 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:05:04,356 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:05:04,356 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378190365]
[2025-02-07 23:05:04,356 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:05:04,356 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:05:04,356 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:05:04,357 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:05:04,357 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:05:04,358 INFO  L87              Difference]: Start difference. First operand 6238 states and 9348 transitions. Second operand  has 4 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)