./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop3-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version c00e63dc
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.gear.2.prop3-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 1346a8c1bc89d9b553c84a111c0e95fc72c2d280b0353eab149aea846a677f75
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-c00e63d-m
[2025-02-05 19:12:29,187 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-05 19:12:29,245 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-02-05 19:12:29,248 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-05 19:12:29,248 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-05 19:12:29,260 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-05 19:12:29,260 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-05 19:12:29,260 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-05 19:12:29,261 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-05 19:12:29,261 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-05 19:12:29,261 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-05 19:12:29,261 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-05 19:12:29,261 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-05 19:12:29,261 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-05 19:12:29,261 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-05 19:12:29,261 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-05 19:12:29,262 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-05 19:12:29,262 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-05 19:12:29,262 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-05 19:12:29,262 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-05 19:12:29,262 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-05 19:12:29,262 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-05 19:12:29,262 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-05 19:12:29,262 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-05 19:12:29,262 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-05 19:12:29,262 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-05 19:12:29,262 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 19:12:29,263 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-05 19:12:29,263 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-05 19:12:29,264 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-05 19:12:29,264 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 -> 1346a8c1bc89d9b553c84a111c0e95fc72c2d280b0353eab149aea846a677f75
[2025-02-05 19:12:29,427 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-05 19:12:29,432 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-05 19:12:29,433 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-05 19:12:29,433 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-05 19:12:29,434 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-05 19:12:29,434 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop3-back-serstep.c
[2025-02-05 19:12:30,637 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d9f333c2f/bb83a09411e74fe9b2a50a7f370ccf81/FLAGec4e8177b
[2025-02-05 19:12:31,166 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-05 19:12:31,167 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop3-back-serstep.c
[2025-02-05 19:12:31,201 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d9f333c2f/bb83a09411e74fe9b2a50a7f370ccf81/FLAGec4e8177b
[2025-02-05 19:12:31,232 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d9f333c2f/bb83a09411e74fe9b2a50a7f370ccf81
[2025-02-05 19:12:31,234 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-05 19:12:31,239 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-05 19:12:31,240 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-05 19:12:31,240 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-05 19:12:31,245 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-05 19:12:31,246 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 07:12:31" (1/1) ...
[2025-02-05 19:12:31,253 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ee481f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:31, skipping insertion in model container
[2025-02-05 19:12:31,253 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 07:12:31" (1/1) ...
[2025-02-05 19:12:31,359 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-05 19:12:31,531 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.gear.2.prop3-back-serstep.c[1172,1185]
[2025-02-05 19:12:32,045 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 19:12:32,052 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-05 19:12:32,059 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.gear.2.prop3-back-serstep.c[1172,1185]
[2025-02-05 19:12:32,302 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 19:12:32,313 INFO  L204         MainTranslator]: Completed translation
[2025-02-05 19:12:32,313 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32 WrapperNode
[2025-02-05 19:12:32,314 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-05 19:12:32,315 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-05 19:12:32,315 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-05 19:12:32,315 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-05 19:12:32,320 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:32,394 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:33,659 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 14616
[2025-02-05 19:12:33,660 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-05 19:12:33,661 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-05 19:12:33,661 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-05 19:12:33,661 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-05 19:12:33,668 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:33,669 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:34,177 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:34,499 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].
[2025-02-05 19:12:34,501 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:34,501 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:34,711 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:34,756 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:34,855 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:34,906 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:35,085 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-05 19:12:35,087 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-05 19:12:35,087 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-05 19:12:35,087 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-05 19:12:35,088 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (1/1) ...
[2025-02-05 19:12:35,092 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 19:12:35,102 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 19:12:35,113 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)
[2025-02-05 19:12:35,120 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
[2025-02-05 19:12:35,135 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-05 19:12:35,135 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-05 19:12:35,135 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-05 19:12:35,135 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-05 19:12:35,807 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-05 19:12:35,809 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-05 19:13:03,960 INFO  L?                        ?]: Removed 7996 outVars from TransFormulas that were not future-live.
[2025-02-05 19:13:03,960 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-05 19:13:04,729 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-05 19:13:04,734 INFO  L337             CfgBuilder]: Removed 4 assume(true) statements.
[2025-02-05 19:13:04,734 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 07:13:04 BoogieIcfgContainer
[2025-02-05 19:13:04,734 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-05 19:13:04,736 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-05 19:13:04,736 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-05 19:13:04,744 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-05 19:13:04,744 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 07:12:31" (1/3) ...
[2025-02-05 19:13:04,745 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15de0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 07:13:04, skipping insertion in model container
[2025-02-05 19:13:04,745 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:12:32" (2/3) ...
[2025-02-05 19:13:04,745 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15de0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 07:13:04, skipping insertion in model container
[2025-02-05 19:13:04,745 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 07:13:04" (3/3) ...
[2025-02-05 19:13:04,750 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.gear.2.prop3-back-serstep.c
[2025-02-05 19:13:04,774 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-05 19:13:04,777 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.gear.2.prop3-back-serstep.c that has 1 procedures, 5122 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-05 19:13:04,988 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-05 19:13:05,005 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;@505f08fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-05 19:13:05,010 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-05 19:13:05,031 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5122 states, 5120 states have (on average 1.5001953125) internal successors, (7681), 5121 states have internal predecessors, (7681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:05,073 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 528
[2025-02-05 19:13:05,073 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:13:05,074 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]
[2025-02-05 19:13:05,075 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:13:05,082 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:13:05,083 INFO  L85        PathProgramCache]: Analyzing trace with hash -10355248, now seen corresponding path program 1 times
[2025-02-05 19:13:05,088 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:13:05,095 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595428156]
[2025-02-05 19:13:05,096 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:13:05,096 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:13:05,450 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes.
[2025-02-05 19:13:05,847 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements.
[2025-02-05 19:13:05,847 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:13:05,848 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:13:07,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:13:07,474 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:13:07,474 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595428156]
[2025-02-05 19:13:07,474 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595428156] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:13:07,474 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:13:07,475 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 19:13:07,476 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865976394]
[2025-02-05 19:13:07,476 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:13:07,481 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 19:13:07,481 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:13:07,501 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 19:13:07,501 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 19:13:07,512 INFO  L87              Difference]: Start difference. First operand  has 5122 states, 5120 states have (on average 1.5001953125) internal successors, (7681), 5121 states have internal predecessors, (7681), 0 states have call successors, (0), 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 131.75) internal successors, (527), 4 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:09,638 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:13:09,639 INFO  L93              Difference]: Finished difference Result 10005 states and 15007 transitions.
[2025-02-05 19:13:09,640 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 19:13:09,641 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 0 states have call successors, (0), 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 527
[2025-02-05 19:13:09,643 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:13:09,684 INFO  L225             Difference]: With dead ends: 10005
[2025-02-05 19:13:09,685 INFO  L226             Difference]: Without dead ends: 5121
[2025-02-05 19:13:09,702 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
[2025-02-05 19:13:09,704 INFO  L435           NwaCegarLoop]: 6396 mSDtfsCounter, 0 mSDsluCounter, 12787 mSDsCounter, 0 mSdLazyCounter, 3847 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19183 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2025-02-05 19:13:09,704 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19183 Invalid, 3847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3847 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2025-02-05 19:13:09,721 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5121 states.
[2025-02-05 19:13:09,835 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5121 to 5121.
[2025-02-05 19:13:09,843 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5121 states, 5120 states have (on average 1.4998046875) internal successors, (7679), 5120 states have internal predecessors, (7679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:09,858 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 7679 transitions.
[2025-02-05 19:13:09,860 INFO  L78                 Accepts]: Start accepts. Automaton has 5121 states and 7679 transitions. Word has length 527
[2025-02-05 19:13:09,861 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:13:09,861 INFO  L471      AbstractCegarLoop]: Abstraction has 5121 states and 7679 transitions.
[2025-02-05 19:13:09,862 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:09,862 INFO  L276                IsEmpty]: Start isEmpty. Operand 5121 states and 7679 transitions.
[2025-02-05 19:13:09,869 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 529
[2025-02-05 19:13:09,869 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:13:09,869 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]
[2025-02-05 19:13:09,870 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-05 19:13:09,870 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:13:09,871 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:13:09,871 INFO  L85        PathProgramCache]: Analyzing trace with hash -316326421, now seen corresponding path program 1 times
[2025-02-05 19:13:09,871 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:13:09,871 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732196435]
[2025-02-05 19:13:09,871 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:13:09,872 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:13:09,947 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 528 statements into 1 equivalence classes.
[2025-02-05 19:13:10,058 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 528 of 528 statements.
[2025-02-05 19:13:10,058 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:13:10,058 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:13:10,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:13:10,557 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:13:10,557 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732196435]
[2025-02-05 19:13:10,557 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732196435] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:13:10,558 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:13:10,558 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 19:13:10,558 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950218597]
[2025-02-05 19:13:10,558 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:13:10,560 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 19:13:10,560 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:13:10,560 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 19:13:10,561 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 19:13:10,561 INFO  L87              Difference]: Start difference. First operand 5121 states and 7679 transitions. Second operand  has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:12,498 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:13:12,498 INFO  L93              Difference]: Finished difference Result 10006 states and 15005 transitions.
[2025-02-05 19:13:12,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 19:13:12,499 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 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 528
[2025-02-05 19:13:12,499 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:13:12,513 INFO  L225             Difference]: With dead ends: 10006
[2025-02-05 19:13:12,513 INFO  L226             Difference]: Without dead ends: 5123
[2025-02-05 19:13:12,518 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
[2025-02-05 19:13:12,519 INFO  L435           NwaCegarLoop]: 6396 mSDtfsCounter, 0 mSDsluCounter, 12784 mSDsCounter, 0 mSdLazyCounter, 3850 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19180 SdHoareTripleChecker+Invalid, 3850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2025-02-05 19:13:12,519 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19180 Invalid, 3850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3850 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2025-02-05 19:13:12,524 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5123 states.
[2025-02-05 19:13:12,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 5123.
[2025-02-05 19:13:12,582 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5123 states, 5122 states have (on average 1.4996095275283092) internal successors, (7681), 5122 states have internal predecessors, (7681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:12,589 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 7681 transitions.
[2025-02-05 19:13:12,589 INFO  L78                 Accepts]: Start accepts. Automaton has 5123 states and 7681 transitions. Word has length 528
[2025-02-05 19:13:12,590 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:13:12,590 INFO  L471      AbstractCegarLoop]: Abstraction has 5123 states and 7681 transitions.
[2025-02-05 19:13:12,590 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:12,591 INFO  L276                IsEmpty]: Start isEmpty. Operand 5123 states and 7681 transitions.
[2025-02-05 19:13:12,596 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 530
[2025-02-05 19:13:12,597 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:13:12,597 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]
[2025-02-05 19:13:12,597 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-05 19:13:12,597 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:13:12,599 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:13:12,599 INFO  L85        PathProgramCache]: Analyzing trace with hash 715331883, now seen corresponding path program 1 times
[2025-02-05 19:13:12,599 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:13:12,599 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231001683]
[2025-02-05 19:13:12,599 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:13:12,599 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:13:12,672 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 529 statements into 1 equivalence classes.
[2025-02-05 19:13:12,749 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 529 of 529 statements.
[2025-02-05 19:13:12,750 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:13:12,750 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:13:13,372 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:13:13,372 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:13:13,372 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231001683]
[2025-02-05 19:13:13,372 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231001683] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:13:13,372 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:13:13,373 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 19:13:13,373 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184332321]
[2025-02-05 19:13:13,373 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:13:13,373 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 19:13:13,373 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:13:13,374 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 19:13:13,374 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 19:13:13,374 INFO  L87              Difference]: Start difference. First operand 5123 states and 7681 transitions. Second operand  has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:15,367 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:13:15,367 INFO  L93              Difference]: Finished difference Result 10010 states and 15009 transitions.
[2025-02-05 19:13:15,367 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 19:13:15,368 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 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 529
[2025-02-05 19:13:15,368 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:13:15,382 INFO  L225             Difference]: With dead ends: 10010
[2025-02-05 19:13:15,382 INFO  L226             Difference]: Without dead ends: 5125
[2025-02-05 19:13:15,389 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
[2025-02-05 19:13:15,390 INFO  L435           NwaCegarLoop]: 6396 mSDtfsCounter, 0 mSDsluCounter, 12784 mSDsCounter, 0 mSdLazyCounter, 3850 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19180 SdHoareTripleChecker+Invalid, 3850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2025-02-05 19:13:15,390 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19180 Invalid, 3850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3850 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2025-02-05 19:13:15,396 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5125 states.
[2025-02-05 19:13:15,527 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5125 to 5125.
[2025-02-05 19:13:15,535 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5125 states, 5124 states have (on average 1.4994145199063231) internal successors, (7683), 5124 states have internal predecessors, (7683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:15,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 7683 transitions.
[2025-02-05 19:13:15,543 INFO  L78                 Accepts]: Start accepts. Automaton has 5125 states and 7683 transitions. Word has length 529
[2025-02-05 19:13:15,544 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:13:15,544 INFO  L471      AbstractCegarLoop]: Abstraction has 5125 states and 7683 transitions.
[2025-02-05 19:13:15,544 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:15,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 5125 states and 7683 transitions.
[2025-02-05 19:13:15,547 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 531
[2025-02-05 19:13:15,547 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:13:15,548 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]
[2025-02-05 19:13:15,548 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-05 19:13:15,548 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:13:15,551 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:13:15,551 INFO  L85        PathProgramCache]: Analyzing trace with hash -1706145776, now seen corresponding path program 1 times
[2025-02-05 19:13:15,551 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:13:15,551 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926550562]
[2025-02-05 19:13:15,552 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:13:15,552 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:13:15,635 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 530 statements into 1 equivalence classes.
[2025-02-05 19:13:15,712 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 530 of 530 statements.
[2025-02-05 19:13:15,712 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:13:15,712 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:13:16,749 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:13:16,749 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:13:16,749 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926550562]
[2025-02-05 19:13:16,749 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926550562] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:13:16,749 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:13:16,750 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-05 19:13:16,750 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599894043]
[2025-02-05 19:13:16,750 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:13:16,750 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-05 19:13:16,750 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:13:16,753 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-05 19:13:16,753 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-02-05 19:13:16,753 INFO  L87              Difference]: Start difference. First operand 5125 states and 7683 transitions. Second operand  has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:19,759 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:13:19,759 INFO  L93              Difference]: Finished difference Result 14885 states and 22318 transitions.
[2025-02-05 19:13:19,759 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-02-05 19:13:19,760 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 0 states have call successors, (0), 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 530
[2025-02-05 19:13:19,761 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:13:19,781 INFO  L225             Difference]: With dead ends: 14885
[2025-02-05 19:13:19,781 INFO  L226             Difference]: Without dead ends: 9998
[2025-02-05 19:13:19,788 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-02-05 19:13:19,792 INFO  L435           NwaCegarLoop]: 6394 mSDtfsCounter, 7139 mSDsluCounter, 18881 mSDsCounter, 0 mSdLazyCounter, 5078 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7139 SdHoareTripleChecker+Valid, 25275 SdHoareTripleChecker+Invalid, 5078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2025-02-05 19:13:19,792 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7139 Valid, 25275 Invalid, 5078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5078 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2025-02-05 19:13:19,807 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9998 states.
[2025-02-05 19:13:19,879 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 5925.
[2025-02-05 19:13:19,885 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5925 states, 5924 states have (on average 1.49949358541526) internal successors, (8883), 5924 states have internal predecessors, (8883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:19,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5925 states to 5925 states and 8883 transitions.
[2025-02-05 19:13:19,895 INFO  L78                 Accepts]: Start accepts. Automaton has 5925 states and 8883 transitions. Word has length 530
[2025-02-05 19:13:19,896 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:13:19,896 INFO  L471      AbstractCegarLoop]: Abstraction has 5925 states and 8883 transitions.
[2025-02-05 19:13:19,896 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:19,897 INFO  L276                IsEmpty]: Start isEmpty. Operand 5925 states and 8883 transitions.
[2025-02-05 19:13:19,937 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2958
[2025-02-05 19:13:19,937 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:13:19,938 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2025-02-05 19:13:19,939 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-05 19:13:19,939 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:13:19,941 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:13:19,941 INFO  L85        PathProgramCache]: Analyzing trace with hash -1364490410, now seen corresponding path program 1 times
[2025-02-05 19:13:19,941 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:13:19,942 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061520499]
[2025-02-05 19:13:19,942 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:13:19,942 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:13:20,200 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2957 statements into 1 equivalence classes.
[2025-02-05 19:13:22,772 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2957 of 2957 statements.
[2025-02-05 19:13:22,773 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:13:22,773 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:13:26,839 INFO  L134       CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:13:26,840 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:13:26,840 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061520499]
[2025-02-05 19:13:26,840 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061520499] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:13:26,840 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:13:26,840 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:13:26,840 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397732522]
[2025-02-05 19:13:26,840 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:13:26,847 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:13:26,847 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:13:26,850 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:13:26,850 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:13:26,851 INFO  L87              Difference]: Start difference. First operand 5925 states and 8883 transitions. Second operand  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:28,345 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:13:28,346 INFO  L93              Difference]: Finished difference Result 10813 states and 16212 transitions.
[2025-02-05 19:13:28,346 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:13:28,349 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 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 2957
[2025-02-05 19:13:28,352 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:13:28,380 INFO  L225             Difference]: With dead ends: 10813
[2025-02-05 19:13:28,380 INFO  L226             Difference]: Without dead ends: 5926
[2025-02-05 19:13:28,388 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:13:28,391 INFO  L435           NwaCegarLoop]: 6397 mSDtfsCounter, 0 mSDsluCounter, 6392 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12789 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-02-05 19:13:28,395 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12789 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-02-05 19:13:28,402 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5926 states.
[2025-02-05 19:13:28,502 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5926.
[2025-02-05 19:13:28,510 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5926 states, 5925 states have (on average 1.499409282700422) internal successors, (8884), 5925 states have internal predecessors, (8884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:28,517 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 8884 transitions.
[2025-02-05 19:13:28,518 INFO  L78                 Accepts]: Start accepts. Automaton has 5926 states and 8884 transitions. Word has length 2957
[2025-02-05 19:13:28,519 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:13:28,519 INFO  L471      AbstractCegarLoop]: Abstraction has 5926 states and 8884 transitions.
[2025-02-05 19:13:28,519 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:28,520 INFO  L276                IsEmpty]: Start isEmpty. Operand 5926 states and 8884 transitions.
[2025-02-05 19:13:28,581 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2958
[2025-02-05 19:13:28,581 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:13:28,583 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2025-02-05 19:13:28,583 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-02-05 19:13:28,583 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:13:28,585 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:13:28,586 INFO  L85        PathProgramCache]: Analyzing trace with hash 1496054391, now seen corresponding path program 1 times
[2025-02-05 19:13:28,586 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:13:28,586 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46219645]
[2025-02-05 19:13:28,586 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:13:28,586 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:13:28,981 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2957 statements into 1 equivalence classes.
[2025-02-05 19:13:30,413 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2957 of 2957 statements.
[2025-02-05 19:13:30,414 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:13:30,414 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:13:33,814 INFO  L134       CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:13:33,814 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:13:33,814 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46219645]
[2025-02-05 19:13:33,814 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46219645] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:13:33,814 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:13:33,814 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:13:33,814 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951431615]
[2025-02-05 19:13:33,814 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:13:33,816 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:13:33,816 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:13:33,823 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:13:33,823 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:13:33,824 INFO  L87              Difference]: Start difference. First operand 5926 states and 8884 transitions. Second operand  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:35,235 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:13:35,235 INFO  L93              Difference]: Finished difference Result 10815 states and 16214 transitions.
[2025-02-05 19:13:35,236 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:13:35,236 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 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 2957
[2025-02-05 19:13:35,237 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:13:35,245 INFO  L225             Difference]: With dead ends: 10815
[2025-02-05 19:13:35,245 INFO  L226             Difference]: Without dead ends: 5927
[2025-02-05 19:13:35,249 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:13:35,249 INFO  L435           NwaCegarLoop]: 6397 mSDtfsCounter, 0 mSDsluCounter, 6392 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12789 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-02-05 19:13:35,249 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12789 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-02-05 19:13:35,255 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5927 states.
[2025-02-05 19:13:35,309 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5927 to 5927.
[2025-02-05 19:13:35,313 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5927 states, 5926 states have (on average 1.4993250084373946) internal successors, (8885), 5926 states have internal predecessors, (8885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:35,320 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5927 states to 5927 states and 8885 transitions.
[2025-02-05 19:13:35,320 INFO  L78                 Accepts]: Start accepts. Automaton has 5927 states and 8885 transitions. Word has length 2957
[2025-02-05 19:13:35,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:13:35,321 INFO  L471      AbstractCegarLoop]: Abstraction has 5927 states and 8885 transitions.
[2025-02-05 19:13:35,322 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:35,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 5927 states and 8885 transitions.
[2025-02-05 19:13:35,404 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2958
[2025-02-05 19:13:35,405 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:13:35,406 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2025-02-05 19:13:35,406 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-02-05 19:13:35,407 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:13:35,408 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:13:35,409 INFO  L85        PathProgramCache]: Analyzing trace with hash -1926963432, now seen corresponding path program 1 times
[2025-02-05 19:13:35,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:13:35,409 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640761341]
[2025-02-05 19:13:35,410 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:13:35,410 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:13:35,755 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2957 statements into 1 equivalence classes.
[2025-02-05 19:13:36,782 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2957 of 2957 statements.
[2025-02-05 19:13:36,782 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:13:36,783 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:13:39,838 INFO  L134       CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:13:39,839 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:13:39,839 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640761341]
[2025-02-05 19:13:39,839 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640761341] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:13:39,839 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:13:39,839 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:13:39,839 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280220635]
[2025-02-05 19:13:39,839 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:13:39,841 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:13:39,841 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:13:39,843 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:13:39,843 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:13:39,844 INFO  L87              Difference]: Start difference. First operand 5927 states and 8885 transitions. Second operand  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:40,956 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:13:40,956 INFO  L93              Difference]: Finished difference Result 10817 states and 16216 transitions.
[2025-02-05 19:13:40,957 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:13:40,957 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 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 2957
[2025-02-05 19:13:40,960 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:13:40,967 INFO  L225             Difference]: With dead ends: 10817
[2025-02-05 19:13:40,967 INFO  L226             Difference]: Without dead ends: 5928
[2025-02-05 19:13:40,971 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:13:40,972 INFO  L435           NwaCegarLoop]: 6397 mSDtfsCounter, 0 mSDsluCounter, 6392 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12789 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2025-02-05 19:13:40,973 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12789 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2025-02-05 19:13:40,979 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5928 states.
[2025-02-05 19:13:41,029 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5928 to 5928.
[2025-02-05 19:13:41,033 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5928 states, 5927 states have (on average 1.4992407626117765) internal successors, (8886), 5927 states have internal predecessors, (8886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:41,040 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8886 transitions.
[2025-02-05 19:13:41,040 INFO  L78                 Accepts]: Start accepts. Automaton has 5928 states and 8886 transitions. Word has length 2957
[2025-02-05 19:13:41,043 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:13:41,043 INFO  L471      AbstractCegarLoop]: Abstraction has 5928 states and 8886 transitions.
[2025-02-05 19:13:41,044 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:41,044 INFO  L276                IsEmpty]: Start isEmpty. Operand 5928 states and 8886 transitions.
[2025-02-05 19:13:41,132 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2958
[2025-02-05 19:13:41,133 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:13:41,134 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2025-02-05 19:13:41,135 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-02-05 19:13:41,135 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:13:41,136 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:13:41,138 INFO  L85        PathProgramCache]: Analyzing trace with hash 2062521337, now seen corresponding path program 1 times
[2025-02-05 19:13:41,139 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:13:41,139 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620037111]
[2025-02-05 19:13:41,140 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:13:41,140 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:13:41,378 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2957 statements into 1 equivalence classes.
[2025-02-05 19:13:42,596 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2957 of 2957 statements.
[2025-02-05 19:13:42,596 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:13:42,596 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:13:45,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:13:45,730 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:13:45,730 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620037111]
[2025-02-05 19:13:45,730 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620037111] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:13:45,731 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:13:45,731 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:13:45,731 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592890414]
[2025-02-05 19:13:45,731 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:13:45,733 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:13:45,733 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:13:45,734 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:13:45,734 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:13:45,735 INFO  L87              Difference]: Start difference. First operand 5928 states and 8886 transitions. Second operand  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:47,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:13:47,159 INFO  L93              Difference]: Finished difference Result 10819 states and 16218 transitions.
[2025-02-05 19:13:47,159 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:13:47,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 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 2957
[2025-02-05 19:13:47,167 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:13:47,183 INFO  L225             Difference]: With dead ends: 10819
[2025-02-05 19:13:47,184 INFO  L226             Difference]: Without dead ends: 5929
[2025-02-05 19:13:47,198 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:13:47,199 INFO  L435           NwaCegarLoop]: 6397 mSDtfsCounter, 0 mSDsluCounter, 6392 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12789 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-02-05 19:13:47,199 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12789 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-02-05 19:13:47,208 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5929 states.
[2025-02-05 19:13:47,269 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5929 to 5929.
[2025-02-05 19:13:47,275 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5929 states, 5928 states have (on average 1.4991565452091768) internal successors, (8887), 5928 states have internal predecessors, (8887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:47,280 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5929 states to 5929 states and 8887 transitions.
[2025-02-05 19:13:47,280 INFO  L78                 Accepts]: Start accepts. Automaton has 5929 states and 8887 transitions. Word has length 2957
[2025-02-05 19:13:47,282 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:13:47,282 INFO  L471      AbstractCegarLoop]: Abstraction has 5929 states and 8887 transitions.
[2025-02-05 19:13:47,283 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 985.6666666666666) internal successors, (2957), 3 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:13:47,284 INFO  L276                IsEmpty]: Start isEmpty. Operand 5929 states and 8887 transitions.
[2025-02-05 19:13:47,327 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2958
[2025-02-05 19:13:47,327 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:13:47,329 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2025-02-05 19:13:47,329 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-02-05 19:13:47,331 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:13:47,333 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:13:47,335 INFO  L85        PathProgramCache]: Analyzing trace with hash 257567450, now seen corresponding path program 1 times
[2025-02-05 19:13:47,335 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:13:47,335 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182828753]
[2025-02-05 19:13:47,336 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:13:47,336 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:13:47,585 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2957 statements into 1 equivalence classes.