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


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


Checking for ERROR reachability
Using default analysis
Version 48c9605d
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-back-serstep.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7b1eaa116faef0972e69419ae852ad956005b7be6a0ba654f44ba13faf9873e4
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-48c9605-m
[2025-02-08 00:03:06,582 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-08 00:03:06,639 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-02-08 00:03:06,644 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-08 00:03:06,644 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-08 00:03:06,661 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-08 00:03:06,662 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-08 00:03:06,662 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-08 00:03:06,662 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-08 00:03:06,663 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-08 00:03:06,663 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-08 00:03:06,663 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-08 00:03:06,663 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-08 00:03:06,664 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-08 00:03:06,664 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-08 00:03:06,664 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-08 00:03:06,664 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-08 00:03:06,664 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-08 00:03:06,664 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-08 00:03:06,664 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-08 00:03:06,664 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-08 00:03:06,664 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-08 00:03:06,664 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-08 00:03:06,665 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-08 00:03:06,665 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-08 00:03:06,665 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-08 00:03:06,665 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-08 00:03:06,665 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-08 00:03:06,665 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-08 00:03:06,665 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-08 00:03:06,665 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-08 00:03:06,666 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-08 00:03:06,666 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-08 00:03:06,666 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-08 00:03:06,666 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-08 00:03:06,666 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-08 00:03:06,666 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-08 00:03:06,666 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-08 00:03:06,666 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-08 00:03:06,666 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-08 00:03:06,666 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 -> 7b1eaa116faef0972e69419ae852ad956005b7be6a0ba654f44ba13faf9873e4
[2025-02-08 00:03:06,859 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-08 00:03:06,864 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-08 00:03:06,865 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-08 00:03:06,866 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-08 00:03:06,866 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-08 00:03:06,866 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-back-serstep.c
[2025-02-08 00:03:07,923 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7aa63a21d/7354c9e889c544d7b26b2eea48cb2c07/FLAG736d2da44
[2025-02-08 00:03:08,349 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-08 00:03:08,350 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-back-serstep.c
[2025-02-08 00:03:08,371 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7aa63a21d/7354c9e889c544d7b26b2eea48cb2c07/FLAG736d2da44
[2025-02-08 00:03:08,510 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7aa63a21d/7354c9e889c544d7b26b2eea48cb2c07
[2025-02-08 00:03:08,512 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-08 00:03:08,514 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-08 00:03:08,517 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-08 00:03:08,517 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-08 00:03:08,520 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-08 00:03:08,520 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:03:08" (1/1) ...
[2025-02-08 00:03:08,521 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ea8090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:08, skipping insertion in model container
[2025-02-08 00:03:08,521 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:03:08" (1/1) ...
[2025-02-08 00:03:08,568 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-08 00:03:08,719 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.szymanski.2.prop1-back-serstep.c[1177,1190]
[2025-02-08 00:03:09,205 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-08 00:03:09,212 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-08 00:03:09,219 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.szymanski.2.prop1-back-serstep.c[1177,1190]
[2025-02-08 00:03:09,452 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-08 00:03:09,462 INFO  L204         MainTranslator]: Completed translation
[2025-02-08 00:03:09,463 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09 WrapperNode
[2025-02-08 00:03:09,464 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-08 00:03:09,464 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-08 00:03:09,464 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-08 00:03:09,464 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-08 00:03:09,468 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:09,534 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:10,758 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15276
[2025-02-08 00:03:10,759 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-08 00:03:10,760 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-08 00:03:10,760 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-08 00:03:10,760 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-08 00:03:10,766 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:10,766 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:11,217 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:11,611 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].
[2025-02-08 00:03:11,612 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:11,613 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:11,966 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:12,007 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:12,058 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:12,103 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:12,247 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-08 00:03:12,248 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-08 00:03:12,248 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-08 00:03:12,248 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-08 00:03:12,249 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (1/1) ...
[2025-02-08 00:03:12,253 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-08 00:03:12,261 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-08 00:03:12,276 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)
[2025-02-08 00:03:12,282 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
[2025-02-08 00:03:12,293 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-08 00:03:12,293 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-08 00:03:12,293 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-08 00:03:12,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-08 00:03:12,957 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-08 00:03:12,958 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-08 00:03:36,631 INFO  L?                        ?]: Removed 8519 outVars from TransFormulas that were not future-live.
[2025-02-08 00:03:36,631 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-08 00:03:37,021 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-08 00:03:37,021 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-08 00:03:37,022 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:03:37 BoogieIcfgContainer
[2025-02-08 00:03:37,022 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-08 00:03:37,023 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-08 00:03:37,023 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-08 00:03:37,027 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-08 00:03:37,027 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:03:08" (1/3) ...
[2025-02-08 00:03:37,027 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4806d6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:03:37, skipping insertion in model container
[2025-02-08 00:03:37,027 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:03:09" (2/3) ...
[2025-02-08 00:03:37,028 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4806d6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:03:37, skipping insertion in model container
[2025-02-08 00:03:37,028 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:03:37" (3/3) ...
[2025-02-08 00:03:37,028 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.szymanski.2.prop1-back-serstep.c
[2025-02-08 00:03:37,039 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-08 00:03:37,040 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.szymanski.2.prop1-back-serstep.c that has 1 procedures, 5176 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-08 00:03:37,125 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-08 00:03:37,134 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;@2d9c757d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-08 00:03:37,135 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-08 00:03:37,147 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5176 states, 5174 states have (on average 1.5) internal successors, (7761), 5175 states have internal predecessors, (7761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:37,165 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 485
[2025-02-08 00:03:37,165 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 00:03:37,166 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]
[2025-02-08 00:03:37,166 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 00:03:37,170 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 00:03:37,170 INFO  L85        PathProgramCache]: Analyzing trace with hash 1923708134, now seen corresponding path program 1 times
[2025-02-08 00:03:37,176 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 00:03:37,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612834177]
[2025-02-08 00:03:37,176 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 00:03:37,177 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 00:03:37,326 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 484 statements into 1 equivalence classes.
[2025-02-08 00:03:37,590 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 484 of 484 statements.
[2025-02-08 00:03:37,590 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 00:03:37,590 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 00:03:38,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 00:03:38,972 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 00:03:38,973 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612834177]
[2025-02-08 00:03:38,974 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612834177] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 00:03:38,974 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 00:03:38,975 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-08 00:03:38,976 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482808563]
[2025-02-08 00:03:38,976 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 00:03:38,979 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-08 00:03:38,980 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 00:03:38,996 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-08 00:03:38,996 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-08 00:03:39,006 INFO  L87              Difference]: Start difference. First operand  has 5176 states, 5174 states have (on average 1.5) internal successors, (7761), 5175 states have internal predecessors, (7761), 0 states have call successors, (0), 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 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:41,153 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 00:03:41,154 INFO  L93              Difference]: Finished difference Result 10139 states and 15205 transitions.
[2025-02-08 00:03:41,155 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-08 00:03:41,156 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 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 484
[2025-02-08 00:03:41,157 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 00:03:41,181 INFO  L225             Difference]: With dead ends: 10139
[2025-02-08 00:03:41,181 INFO  L226             Difference]: Without dead ends: 5176
[2025-02-08 00:03:41,192 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
[2025-02-08 00:03:41,193 INFO  L435           NwaCegarLoop]: 6464 mSDtfsCounter, 0 mSDsluCounter, 12923 mSDsCounter, 0 mSdLazyCounter, 3886 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19387 SdHoareTripleChecker+Invalid, 3886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2025-02-08 00:03:41,194 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19387 Invalid, 3886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3886 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2025-02-08 00:03:41,210 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5176 states.
[2025-02-08 00:03:41,297 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5176 to 5176.
[2025-02-08 00:03:41,305 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5176 states, 5175 states have (on average 1.4995169082125603) internal successors, (7760), 5175 states have internal predecessors, (7760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:41,318 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 7760 transitions.
[2025-02-08 00:03:41,320 INFO  L78                 Accepts]: Start accepts. Automaton has 5176 states and 7760 transitions. Word has length 484
[2025-02-08 00:03:41,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 00:03:41,321 INFO  L471      AbstractCegarLoop]: Abstraction has 5176 states and 7760 transitions.
[2025-02-08 00:03:41,321 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:41,321 INFO  L276                IsEmpty]: Start isEmpty. Operand 5176 states and 7760 transitions.
[2025-02-08 00:03:41,326 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 486
[2025-02-08 00:03:41,326 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 00:03:41,326 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]
[2025-02-08 00:03:41,326 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-08 00:03:41,326 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 00:03:41,327 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 00:03:41,327 INFO  L85        PathProgramCache]: Analyzing trace with hash -489903483, now seen corresponding path program 1 times
[2025-02-08 00:03:41,327 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 00:03:41,327 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854726783]
[2025-02-08 00:03:41,328 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 00:03:41,328 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 00:03:41,394 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 485 statements into 1 equivalence classes.
[2025-02-08 00:03:41,464 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 485 of 485 statements.
[2025-02-08 00:03:41,464 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 00:03:41,464 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 00:03:42,253 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 00:03:42,254 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 00:03:42,254 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854726783]
[2025-02-08 00:03:42,254 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854726783] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 00:03:42,254 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 00:03:42,254 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-08 00:03:42,254 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450755128]
[2025-02-08 00:03:42,257 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 00:03:42,259 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-08 00:03:42,259 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 00:03:42,259 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-08 00:03:42,259 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-08 00:03:42,260 INFO  L87              Difference]: Start difference. First operand 5176 states and 7760 transitions. Second operand  has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:45,022 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 00:03:45,023 INFO  L93              Difference]: Finished difference Result 10141 states and 15204 transitions.
[2025-02-08 00:03:45,023 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-08 00:03:45,023 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 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 485
[2025-02-08 00:03:45,024 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 00:03:45,057 INFO  L225             Difference]: With dead ends: 10141
[2025-02-08 00:03:45,057 INFO  L226             Difference]: Without dead ends: 5178
[2025-02-08 00:03:45,065 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
[2025-02-08 00:03:45,072 INFO  L435           NwaCegarLoop]: 6464 mSDtfsCounter, 0 mSDsluCounter, 12920 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2025-02-08 00:03:45,072 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19384 Invalid, 3889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2025-02-08 00:03:45,083 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5178 states.
[2025-02-08 00:03:45,157 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5178 to 5178.
[2025-02-08 00:03:45,164 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5178 states, 5177 states have (on average 1.4993239327796022) internal successors, (7762), 5177 states have internal predecessors, (7762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:45,173 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5178 states to 5178 states and 7762 transitions.
[2025-02-08 00:03:45,173 INFO  L78                 Accepts]: Start accepts. Automaton has 5178 states and 7762 transitions. Word has length 485
[2025-02-08 00:03:45,174 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 00:03:45,175 INFO  L471      AbstractCegarLoop]: Abstraction has 5178 states and 7762 transitions.
[2025-02-08 00:03:45,175 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:45,175 INFO  L276                IsEmpty]: Start isEmpty. Operand 5178 states and 7762 transitions.
[2025-02-08 00:03:45,183 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 487
[2025-02-08 00:03:45,183 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 00:03:45,183 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]
[2025-02-08 00:03:45,183 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-08 00:03:45,184 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 00:03:45,184 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 00:03:45,185 INFO  L85        PathProgramCache]: Analyzing trace with hash -370589503, now seen corresponding path program 1 times
[2025-02-08 00:03:45,185 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 00:03:45,185 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825020290]
[2025-02-08 00:03:45,185 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 00:03:45,185 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 00:03:45,275 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes.
[2025-02-08 00:03:45,343 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements.
[2025-02-08 00:03:45,344 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 00:03:45,344 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 00:03:45,822 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 00:03:45,823 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 00:03:45,824 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825020290]
[2025-02-08 00:03:45,824 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825020290] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 00:03:45,824 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 00:03:45,824 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-08 00:03:45,824 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99265670]
[2025-02-08 00:03:45,824 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 00:03:45,825 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-08 00:03:45,825 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 00:03:45,826 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-08 00:03:45,826 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-08 00:03:45,826 INFO  L87              Difference]: Start difference. First operand 5178 states and 7762 transitions. Second operand  has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:47,863 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 00:03:47,866 INFO  L93              Difference]: Finished difference Result 10145 states and 15208 transitions.
[2025-02-08 00:03:47,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-08 00:03:47,867 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 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 486
[2025-02-08 00:03:47,869 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 00:03:47,887 INFO  L225             Difference]: With dead ends: 10145
[2025-02-08 00:03:47,888 INFO  L226             Difference]: Without dead ends: 5180
[2025-02-08 00:03:47,893 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
[2025-02-08 00:03:47,898 INFO  L435           NwaCegarLoop]: 6464 mSDtfsCounter, 0 mSDsluCounter, 12920 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2025-02-08 00:03:47,898 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19384 Invalid, 3889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2025-02-08 00:03:47,907 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5180 states.
[2025-02-08 00:03:48,011 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 5180.
[2025-02-08 00:03:48,033 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5180 states, 5179 states have (on average 1.4991311063911952) internal successors, (7764), 5179 states have internal predecessors, (7764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:48,051 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5180 states to 5180 states and 7764 transitions.
[2025-02-08 00:03:48,051 INFO  L78                 Accepts]: Start accepts. Automaton has 5180 states and 7764 transitions. Word has length 486
[2025-02-08 00:03:48,052 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 00:03:48,055 INFO  L471      AbstractCegarLoop]: Abstraction has 5180 states and 7764 transitions.
[2025-02-08 00:03:48,056 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:48,056 INFO  L276                IsEmpty]: Start isEmpty. Operand 5180 states and 7764 transitions.
[2025-02-08 00:03:48,064 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 488
[2025-02-08 00:03:48,065 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 00:03:48,065 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]
[2025-02-08 00:03:48,065 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-08 00:03:48,065 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 00:03:48,070 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 00:03:48,070 INFO  L85        PathProgramCache]: Analyzing trace with hash -1009970134, now seen corresponding path program 1 times
[2025-02-08 00:03:48,070 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 00:03:48,070 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660869223]
[2025-02-08 00:03:48,070 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 00:03:48,070 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 00:03:48,140 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 487 statements into 1 equivalence classes.
[2025-02-08 00:03:48,205 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 487 of 487 statements.
[2025-02-08 00:03:48,205 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 00:03:48,205 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 00:03:48,807 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 00:03:48,807 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 00:03:48,807 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660869223]
[2025-02-08 00:03:48,808 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660869223] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 00:03:48,808 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 00:03:48,808 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-08 00:03:48,808 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322693725]
[2025-02-08 00:03:48,808 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 00:03:48,808 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-08 00:03:48,808 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 00:03:48,809 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-08 00:03:48,809 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-02-08 00:03:48,809 INFO  L87              Difference]: Start difference. First operand 5180 states and 7764 transitions. Second operand  has 5 states, 5 states have (on average 97.4) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:51,611 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 00:03:51,611 INFO  L93              Difference]: Finished difference Result 15092 states and 22623 transitions.
[2025-02-08 00:03:51,611 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-02-08 00:03:51,612 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 97.4) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 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 487
[2025-02-08 00:03:51,612 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 00:03:51,635 INFO  L225             Difference]: With dead ends: 15092
[2025-02-08 00:03:51,636 INFO  L226             Difference]: Without dead ends: 10125
[2025-02-08 00:03:51,643 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-02-08 00:03:51,643 INFO  L435           NwaCegarLoop]: 6462 mSDtfsCounter, 7251 mSDsluCounter, 19115 mSDsCounter, 0 mSdLazyCounter, 5136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7251 SdHoareTripleChecker+Valid, 25577 SdHoareTripleChecker+Invalid, 5136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2025-02-08 00:03:51,644 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7251 Valid, 25577 Invalid, 5136 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5136 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2025-02-08 00:03:51,652 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10125 states.
[2025-02-08 00:03:51,725 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10125 to 5920.
[2025-02-08 00:03:51,731 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5920 states, 5919 states have (on average 1.4992397364419665) internal successors, (8874), 5919 states have internal predecessors, (8874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:51,740 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5920 states to 5920 states and 8874 transitions.
[2025-02-08 00:03:51,740 INFO  L78                 Accepts]: Start accepts. Automaton has 5920 states and 8874 transitions. Word has length 487
[2025-02-08 00:03:51,741 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 00:03:51,741 INFO  L471      AbstractCegarLoop]: Abstraction has 5920 states and 8874 transitions.
[2025-02-08 00:03:51,742 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 97.4) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:03:51,742 INFO  L276                IsEmpty]: Start isEmpty. Operand 5920 states and 8874 transitions.
[2025-02-08 00:03:51,886 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2969
[2025-02-08 00:03:51,886 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 00:03:51,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 00:03:51,889 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-08 00:03:51,889 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 00:03:51,891 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 00:03:51,892 INFO  L85        PathProgramCache]: Analyzing trace with hash -2031353684, now seen corresponding path program 1 times
[2025-02-08 00:03:51,892 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 00:03:51,892 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739018603]
[2025-02-08 00:03:51,892 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 00:03:51,892 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 00:03:52,191 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2968 statements into 1 equivalence classes.
[2025-02-08 00:03:55,192 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2968 of 2968 statements.
[2025-02-08 00:03:55,193 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 00:03:55,193 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 00:04:01,911 INFO  L134       CoverageAnalysis]: Checked inductivity of 376 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2025-02-08 00:04:01,912 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 00:04:01,912 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739018603]
[2025-02-08 00:04:01,912 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739018603] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 00:04:01,912 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 00:04:01,912 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-08 00:04:01,912 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919008935]
[2025-02-08 00:04:01,912 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 00:04:01,914 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-08 00:04:01,914 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 00:04:01,916 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-08 00:04:01,916 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-08 00:04:01,917 INFO  L87              Difference]: Start difference. First operand 5920 states and 8874 transitions. Second operand  has 4 states, 4 states have (on average 650.25) internal successors, (2601), 4 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:03,658 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 00:04:03,659 INFO  L93              Difference]: Finished difference Result 10893 states and 16328 transitions.
[2025-02-08 00:04:03,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-08 00:04:03,660 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 650.25) internal successors, (2601), 4 states have internal predecessors, (2601), 0 states have call successors, (0), 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 2968
[2025-02-08 00:04:03,664 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 00:04:03,675 INFO  L225             Difference]: With dead ends: 10893
[2025-02-08 00:04:03,675 INFO  L226             Difference]: Without dead ends: 5924
[2025-02-08 00:04:03,678 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
[2025-02-08 00:04:03,679 INFO  L435           NwaCegarLoop]: 6464 mSDtfsCounter, 0 mSDsluCounter, 12920 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-02-08 00:04:03,679 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19384 Invalid, 3889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-02-08 00:04:03,685 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5924 states.
[2025-02-08 00:04:03,746 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5924 to 5922.
[2025-02-08 00:04:03,751 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5922 states, 5921 states have (on average 1.4990711028542476) internal successors, (8876), 5921 states have internal predecessors, (8876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:03,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5922 states to 5922 states and 8876 transitions.
[2025-02-08 00:04:03,759 INFO  L78                 Accepts]: Start accepts. Automaton has 5922 states and 8876 transitions. Word has length 2968
[2025-02-08 00:04:03,762 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 00:04:03,762 INFO  L471      AbstractCegarLoop]: Abstraction has 5922 states and 8876 transitions.
[2025-02-08 00:04:03,763 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 650.25) internal successors, (2601), 4 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:03,763 INFO  L276                IsEmpty]: Start isEmpty. Operand 5922 states and 8876 transitions.
[2025-02-08 00:04:03,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2970
[2025-02-08 00:04:03,844 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 00:04:03,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 00:04:03,851 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-02-08 00:04:03,851 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 00:04:03,852 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 00:04:03,853 INFO  L85        PathProgramCache]: Analyzing trace with hash -2142617254, now seen corresponding path program 1 times
[2025-02-08 00:04:03,853 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 00:04:03,853 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066080860]
[2025-02-08 00:04:03,854 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 00:04:03,854 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 00:04:04,312 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2969 statements into 1 equivalence classes.
[2025-02-08 00:04:05,439 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2969 of 2969 statements.
[2025-02-08 00:04:05,442 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 00:04:05,442 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 00:04:09,695 INFO  L134       CoverageAnalysis]: Checked inductivity of 376 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked.
[2025-02-08 00:04:09,696 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 00:04:09,698 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066080860]
[2025-02-08 00:04:09,698 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066080860] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 00:04:09,698 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 00:04:09,698 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-08 00:04:09,698 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571725372]
[2025-02-08 00:04:09,698 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 00:04:09,706 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-08 00:04:09,706 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 00:04:09,708 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-08 00:04:09,708 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-08 00:04:09,709 INFO  L87              Difference]: Start difference. First operand 5922 states and 8876 transitions. Second operand  has 4 states, 4 states have (on average 651.0) internal successors, (2604), 4 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:11,309 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 00:04:11,309 INFO  L93              Difference]: Finished difference Result 10901 states and 16338 transitions.
[2025-02-08 00:04:11,310 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-08 00:04:11,310 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 651.0) internal successors, (2604), 4 states have internal predecessors, (2604), 0 states have call successors, (0), 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 2969
[2025-02-08 00:04:11,318 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 00:04:11,332 INFO  L225             Difference]: With dead ends: 10901
[2025-02-08 00:04:11,335 INFO  L226             Difference]: Without dead ends: 5926
[2025-02-08 00:04:11,339 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
[2025-02-08 00:04:11,343 INFO  L435           NwaCegarLoop]: 6464 mSDtfsCounter, 0 mSDsluCounter, 12920 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-02-08 00:04:11,343 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19384 Invalid, 3889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-02-08 00:04:11,348 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5926 states.
[2025-02-08 00:04:11,396 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5924.
[2025-02-08 00:04:11,402 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5924 states, 5923 states have (on average 1.4989025831504306) internal successors, (8878), 5923 states have internal predecessors, (8878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:11,407 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 8878 transitions.
[2025-02-08 00:04:11,407 INFO  L78                 Accepts]: Start accepts. Automaton has 5924 states and 8878 transitions. Word has length 2969
[2025-02-08 00:04:11,410 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 00:04:11,410 INFO  L471      AbstractCegarLoop]: Abstraction has 5924 states and 8878 transitions.
[2025-02-08 00:04:11,411 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 651.0) internal successors, (2604), 4 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:11,411 INFO  L276                IsEmpty]: Start isEmpty. Operand 5924 states and 8878 transitions.
[2025-02-08 00:04:11,448 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2971
[2025-02-08 00:04:11,448 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 00:04:11,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 00:04:11,450 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-02-08 00:04:11,451 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 00:04:11,452 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 00:04:11,452 INFO  L85        PathProgramCache]: Analyzing trace with hash -2128164655, now seen corresponding path program 1 times
[2025-02-08 00:04:11,452 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 00:04:11,453 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155939632]
[2025-02-08 00:04:11,453 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 00:04:11,453 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 00:04:11,720 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2970 statements into 1 equivalence classes.
[2025-02-08 00:04:13,581 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2970 of 2970 statements.
[2025-02-08 00:04:13,582 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 00:04:13,582 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 00:04:18,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 376 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2025-02-08 00:04:18,239 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 00:04:18,239 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155939632]
[2025-02-08 00:04:18,239 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155939632] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 00:04:18,239 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 00:04:18,240 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-08 00:04:18,240 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325196988]
[2025-02-08 00:04:18,240 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 00:04:18,242 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-08 00:04:18,242 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 00:04:18,244 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-08 00:04:18,244 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-08 00:04:18,244 INFO  L87              Difference]: Start difference. First operand 5924 states and 8878 transitions. Second operand  has 4 states, 4 states have (on average 651.75) internal successors, (2607), 4 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:19,899 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 00:04:19,899 INFO  L93              Difference]: Finished difference Result 10909 states and 16348 transitions.
[2025-02-08 00:04:19,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-08 00:04:19,902 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 651.75) internal successors, (2607), 4 states have internal predecessors, (2607), 0 states have call successors, (0), 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 2970
[2025-02-08 00:04:19,906 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 00:04:19,918 INFO  L225             Difference]: With dead ends: 10909
[2025-02-08 00:04:19,921 INFO  L226             Difference]: Without dead ends: 5928
[2025-02-08 00:04:19,930 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
[2025-02-08 00:04:19,931 INFO  L435           NwaCegarLoop]: 6464 mSDtfsCounter, 0 mSDsluCounter, 12920 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-02-08 00:04:19,931 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19384 Invalid, 3889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-02-08 00:04:19,940 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5928 states.
[2025-02-08 00:04:20,033 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5928 to 5926.
[2025-02-08 00:04:20,047 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5926 states, 5925 states have (on average 1.4987341772151899) internal successors, (8880), 5925 states have internal predecessors, (8880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:20,056 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 8880 transitions.
[2025-02-08 00:04:20,056 INFO  L78                 Accepts]: Start accepts. Automaton has 5926 states and 8880 transitions. Word has length 2970
[2025-02-08 00:04:20,058 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 00:04:20,061 INFO  L471      AbstractCegarLoop]: Abstraction has 5926 states and 8880 transitions.
[2025-02-08 00:04:20,062 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 651.75) internal successors, (2607), 4 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:20,062 INFO  L276                IsEmpty]: Start isEmpty. Operand 5926 states and 8880 transitions.
[2025-02-08 00:04:20,133 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2972
[2025-02-08 00:04:20,136 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 00:04:20,138 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 00:04:20,138 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-02-08 00:04:20,138 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 00:04:20,142 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 00:04:20,143 INFO  L85        PathProgramCache]: Analyzing trace with hash 826353589, now seen corresponding path program 1 times
[2025-02-08 00:04:20,143 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 00:04:20,144 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804482358]
[2025-02-08 00:04:20,145 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 00:04:20,145 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 00:04:20,642 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2971 statements into 1 equivalence classes.
[2025-02-08 00:04:21,805 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2971 of 2971 statements.
[2025-02-08 00:04:21,806 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 00:04:21,806 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 00:04:26,063 INFO  L134       CoverageAnalysis]: Checked inductivity of 376 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked.
[2025-02-08 00:04:26,064 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 00:04:26,064 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804482358]
[2025-02-08 00:04:26,064 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804482358] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 00:04:26,064 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 00:04:26,064 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-08 00:04:26,064 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252381906]
[2025-02-08 00:04:26,064 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 00:04:26,067 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-08 00:04:26,067 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 00:04:26,069 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-08 00:04:26,069 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-08 00:04:26,069 INFO  L87              Difference]: Start difference. First operand 5926 states and 8880 transitions. Second operand  has 4 states, 4 states have (on average 652.5) internal successors, (2610), 4 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:27,529 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 00:04:27,529 INFO  L93              Difference]: Finished difference Result 10917 states and 16358 transitions.
[2025-02-08 00:04:27,529 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-08 00:04:27,530 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 652.5) internal successors, (2610), 4 states have internal predecessors, (2610), 0 states have call successors, (0), 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 2971
[2025-02-08 00:04:27,532 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 00:04:27,549 INFO  L225             Difference]: With dead ends: 10917
[2025-02-08 00:04:27,549 INFO  L226             Difference]: Without dead ends: 5930
[2025-02-08 00:04:27,557 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
[2025-02-08 00:04:27,558 INFO  L435           NwaCegarLoop]: 6464 mSDtfsCounter, 0 mSDsluCounter, 12920 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-02-08 00:04:27,558 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19384 Invalid, 3889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-02-08 00:04:27,571 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5930 states.
[2025-02-08 00:04:27,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5930 to 5928.
[2025-02-08 00:04:27,673 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5928 states, 5927 states have (on average 1.4985658849333559) internal successors, (8882), 5927 states have internal predecessors, (8882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:27,683 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8882 transitions.
[2025-02-08 00:04:27,686 INFO  L78                 Accepts]: Start accepts. Automaton has 5928 states and 8882 transitions. Word has length 2971
[2025-02-08 00:04:27,688 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 00:04:27,688 INFO  L471      AbstractCegarLoop]: Abstraction has 5928 states and 8882 transitions.
[2025-02-08 00:04:27,689 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 652.5) internal successors, (2610), 4 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 00:04:27,689 INFO  L276                IsEmpty]: Start isEmpty. Operand 5928 states and 8882 transitions.
[2025-02-08 00:04:27,762 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2973
[2025-02-08 00:04:27,764 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 00:04:27,765 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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[2025-02-08 00:04:27,769 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-02-08 00:04:27,769 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 00:04:27,770 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 00:04:27,775 INFO  L85        PathProgramCache]: Analyzing trace with hash 695023606, now seen corresponding path program 1 times
[2025-02-08 00:04:27,775 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 00:04:27,775 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661326793]
[2025-02-08 00:04:27,776 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 00:04:27,776 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 00:04:28,446 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2972 statements into 1 equivalence classes.
[2025-02-08 00:04:29,752 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2972 of 2972 statements.
[2025-02-08 00:04:29,752 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 00:04:29,752 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat