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


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


Checking for ERROR reachability
Using default analysis
Version c00e63dc
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.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 c88fa6f8c6fb4d25eacade9ad32b3ed1a2c4aca541eca7e1f9fe329a378f85ab
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-c00e63d-m
[2025-02-05 18:52:04,414 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-05 18:52:04,471 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-02-05 18:52:04,477 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-05 18:52:04,477 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-05 18:52:04,491 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-05 18:52:04,491 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-05 18:52:04,492 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-05 18:52:04,492 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-05 18:52:04,492 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-05 18:52:04,492 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-05 18:52:04,492 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-05 18:52:04,492 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-05 18:52:04,492 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-05 18:52:04,493 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-05 18:52:04,493 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-05 18:52:04,493 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-05 18:52:04,493 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-05 18:52:04,493 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-05 18:52:04,493 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-05 18:52:04,493 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-05 18:52:04,493 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-05 18:52:04,493 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-05 18:52:04,493 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-05 18:52:04,494 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-05 18:52:04,494 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-05 18:52:04,494 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-05 18:52:04,494 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-05 18:52:04,494 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-05 18:52:04,494 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 18:52:04,494 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-05 18:52:04,494 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-05 18:52:04,494 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-05 18:52:04,494 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-05 18:52:04,495 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-05 18:52:04,495 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-05 18:52:04,495 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-05 18:52:04,495 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-05 18:52:04,495 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-05 18:52:04,495 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-05 18:52:04,495 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 -> c88fa6f8c6fb4d25eacade9ad32b3ed1a2c4aca541eca7e1f9fe329a378f85ab
[2025-02-05 18:52:04,719 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-05 18:52:04,725 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-05 18:52:04,727 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-05 18:52:04,729 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-05 18:52:04,729 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-05 18:52:04,730 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop1-back-serstep.c
[2025-02-05 18:52:05,877 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e1a4f62af/078ee45bbb2b4d39bbc77e2f5334b23e/FLAGb6d2906cb
[2025-02-05 18:52:06,251 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-05 18:52:06,252 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop1-back-serstep.c
[2025-02-05 18:52:06,275 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e1a4f62af/078ee45bbb2b4d39bbc77e2f5334b23e/FLAGb6d2906cb
[2025-02-05 18:52:06,450 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e1a4f62af/078ee45bbb2b4d39bbc77e2f5334b23e
[2025-02-05 18:52:06,452 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-05 18:52:06,455 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-05 18:52:06,456 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-05 18:52:06,456 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-05 18:52:06,459 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-05 18:52:06,459 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 06:52:06" (1/1) ...
[2025-02-05 18:52:06,460 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5540f65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:06, skipping insertion in model container
[2025-02-05 18:52:06,460 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 06:52:06" (1/1) ...
[2025-02-05 18:52:06,520 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-05 18:52:06,698 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.cambridge.2.prop1-back-serstep.c[1177,1190]
[2025-02-05 18:52:07,270 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 18:52:07,279 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-05 18:52:07,286 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.cambridge.2.prop1-back-serstep.c[1177,1190]
[2025-02-05 18:52:07,678 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 18:52:07,698 INFO  L204         MainTranslator]: Completed translation
[2025-02-05 18:52:07,699 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07 WrapperNode
[2025-02-05 18:52:07,700 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-05 18:52:07,705 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-05 18:52:07,705 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-05 18:52:07,705 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-05 18:52:07,711 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:07,810 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:08,888 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 17767
[2025-02-05 18:52:08,888 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-05 18:52:08,889 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-05 18:52:08,889 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-05 18:52:08,889 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-05 18:52:08,895 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:08,895 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:09,190 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:09,377 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2025-02-05 18:52:09,378 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:09,378 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:09,697 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:09,739 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:09,786 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:09,826 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:10,008 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-05 18:52:10,008 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-05 18:52:10,008 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-05 18:52:10,008 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-05 18:52:10,009 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (1/1) ...
[2025-02-05 18:52:10,013 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 18:52:10,022 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 18:52:10,033 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-02-05 18:52:10,036 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-02-05 18:52:10,053 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-05 18:52:10,053 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-05 18:52:10,053 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-05 18:52:10,053 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-05 18:52:10,886 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-05 18:52:10,888 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-05 18:52:37,549 INFO  L?                        ?]: Removed 9677 outVars from TransFormulas that were not future-live.
[2025-02-05 18:52:37,550 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-05 18:52:38,005 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-05 18:52:38,006 INFO  L337             CfgBuilder]: Removed 10 assume(true) statements.
[2025-02-05 18:52:38,006 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 06:52:38 BoogieIcfgContainer
[2025-02-05 18:52:38,006 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-05 18:52:38,008 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-05 18:52:38,008 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-05 18:52:38,012 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-05 18:52:38,012 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 06:52:06" (1/3) ...
[2025-02-05 18:52:38,013 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c2524d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 06:52:38, skipping insertion in model container
[2025-02-05 18:52:38,013 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 06:52:07" (2/3) ...
[2025-02-05 18:52:38,014 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c2524d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 06:52:38, skipping insertion in model container
[2025-02-05 18:52:38,014 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 06:52:38" (3/3) ...
[2025-02-05 18:52:38,015 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.2.prop1-back-serstep.c
[2025-02-05 18:52:38,028 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-05 18:52:38,029 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cambridge.2.prop1-back-serstep.c that has 1 procedures, 6126 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-05 18:52:38,143 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-05 18:52:38,151 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;@35c6ae95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-05 18:52:38,151 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-05 18:52:38,169 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6126 states, 6124 states have (on average 1.5060418027433051) internal successors, (9223), 6125 states have internal predecessors, (9223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:38,186 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 384
[2025-02-05 18:52:38,187 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 18:52:38,187 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]
[2025-02-05 18:52:38,188 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 18:52:38,191 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 18:52:38,192 INFO  L85        PathProgramCache]: Analyzing trace with hash -906246428, now seen corresponding path program 1 times
[2025-02-05 18:52:38,197 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 18:52:38,198 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975547187]
[2025-02-05 18:52:38,198 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 18:52:38,198 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 18:52:38,347 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 383 statements into 1 equivalence classes.
[2025-02-05 18:52:38,576 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 383 of 383 statements.
[2025-02-05 18:52:38,577 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 18:52:38,577 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 18:52:39,791 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 18:52:39,792 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 18:52:39,792 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975547187]
[2025-02-05 18:52:39,793 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975547187] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 18:52:39,793 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 18:52:39,794 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 18:52:39,795 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108070272]
[2025-02-05 18:52:39,796 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 18:52:39,800 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 18:52:39,800 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 18:52:39,820 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 18:52:39,820 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 18:52:39,833 INFO  L87              Difference]: Start difference. First operand  has 6126 states, 6124 states have (on average 1.5060418027433051) internal successors, (9223), 6125 states have internal predecessors, (9223), 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 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:42,541 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 18:52:42,542 INFO  L93              Difference]: Finished difference Result 12085 states and 18199 transitions.
[2025-02-05 18:52:42,543 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 18:52:42,544 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 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 383
[2025-02-05 18:52:42,547 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 18:52:42,590 INFO  L225             Difference]: With dead ends: 12085
[2025-02-05 18:52:42,591 INFO  L226             Difference]: Without dead ends: 6125
[2025-02-05 18:52:42,605 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 18:52:42,608 INFO  L435           NwaCegarLoop]: 7702 mSDtfsCounter, 0 mSDsluCounter, 15399 mSDsCounter, 0 mSdLazyCounter, 4555 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23101 SdHoareTripleChecker+Invalid, 4555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2025-02-05 18:52:42,608 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23101 Invalid, 4555 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4555 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2025-02-05 18:52:42,631 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6125 states.
[2025-02-05 18:52:42,774 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6125 to 6125.
[2025-02-05 18:52:42,785 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6125 states, 6124 states have (on average 1.5057152188112344) internal successors, (9221), 6124 states have internal predecessors, (9221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:42,802 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6125 states to 6125 states and 9221 transitions.
[2025-02-05 18:52:42,804 INFO  L78                 Accepts]: Start accepts. Automaton has 6125 states and 9221 transitions. Word has length 383
[2025-02-05 18:52:42,805 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 18:52:42,806 INFO  L471      AbstractCegarLoop]: Abstraction has 6125 states and 9221 transitions.
[2025-02-05 18:52:42,806 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:42,806 INFO  L276                IsEmpty]: Start isEmpty. Operand 6125 states and 9221 transitions.
[2025-02-05 18:52:42,812 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 385
[2025-02-05 18:52:42,813 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 18:52:42,813 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]
[2025-02-05 18:52:42,813 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-05 18:52:42,813 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 18:52:42,814 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 18:52:42,814 INFO  L85        PathProgramCache]: Analyzing trace with hash 1975820353, now seen corresponding path program 1 times
[2025-02-05 18:52:42,815 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 18:52:42,815 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927530207]
[2025-02-05 18:52:42,815 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 18:52:42,815 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 18:52:42,895 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 384 statements into 1 equivalence classes.
[2025-02-05 18:52:42,979 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 384 of 384 statements.
[2025-02-05 18:52:42,979 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 18:52:42,979 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 18:52:43,395 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 18:52:43,396 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 18:52:43,396 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927530207]
[2025-02-05 18:52:43,396 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927530207] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 18:52:43,396 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 18:52:43,396 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 18:52:43,396 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41209480]
[2025-02-05 18:52:43,396 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 18:52:43,397 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 18:52:43,397 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 18:52:43,398 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 18:52:43,398 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 18:52:43,398 INFO  L87              Difference]: Start difference. First operand 6125 states and 9221 transitions. Second operand  has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:45,815 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 18:52:45,815 INFO  L93              Difference]: Finished difference Result 12086 states and 18197 transitions.
[2025-02-05 18:52:45,816 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 18:52:45,816 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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 384
[2025-02-05 18:52:45,816 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 18:52:45,834 INFO  L225             Difference]: With dead ends: 12086
[2025-02-05 18:52:45,834 INFO  L226             Difference]: Without dead ends: 6127
[2025-02-05 18:52:45,839 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 18:52:45,839 INFO  L435           NwaCegarLoop]: 7702 mSDtfsCounter, 0 mSDsluCounter, 15396 mSDsCounter, 0 mSdLazyCounter, 4558 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23098 SdHoareTripleChecker+Invalid, 4558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2025-02-05 18:52:45,840 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23098 Invalid, 4558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4558 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2025-02-05 18:52:45,849 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6127 states.
[2025-02-05 18:52:45,941 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 6127.
[2025-02-05 18:52:45,958 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6127 states, 6126 states have (on average 1.5055501142670584) internal successors, (9223), 6126 states have internal predecessors, (9223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:45,969 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6127 states to 6127 states and 9223 transitions.
[2025-02-05 18:52:45,970 INFO  L78                 Accepts]: Start accepts. Automaton has 6127 states and 9223 transitions. Word has length 384
[2025-02-05 18:52:45,971 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 18:52:45,971 INFO  L471      AbstractCegarLoop]: Abstraction has 6127 states and 9223 transitions.
[2025-02-05 18:52:45,971 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:45,971 INFO  L276                IsEmpty]: Start isEmpty. Operand 6127 states and 9223 transitions.
[2025-02-05 18:52:45,975 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 386
[2025-02-05 18:52:45,976 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 18:52:45,977 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]
[2025-02-05 18:52:45,977 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-05 18:52:45,977 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 18:52:45,978 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 18:52:45,978 INFO  L85        PathProgramCache]: Analyzing trace with hash -1242559873, now seen corresponding path program 1 times
[2025-02-05 18:52:45,978 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 18:52:45,978 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377212340]
[2025-02-05 18:52:45,978 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 18:52:45,979 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 18:52:46,081 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 385 statements into 1 equivalence classes.
[2025-02-05 18:52:46,213 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 385 of 385 statements.
[2025-02-05 18:52:46,213 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 18:52:46,213 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 18:52:47,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 18:52:47,144 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 18:52:47,144 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377212340]
[2025-02-05 18:52:47,144 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377212340] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 18:52:47,144 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 18:52:47,144 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 18:52:47,144 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500223024]
[2025-02-05 18:52:47,145 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 18:52:47,146 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 18:52:47,146 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 18:52:47,147 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 18:52:47,147 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 18:52:47,147 INFO  L87              Difference]: Start difference. First operand 6127 states and 9223 transitions. Second operand  has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:48,877 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 18:52:48,877 INFO  L93              Difference]: Finished difference Result 12090 states and 18201 transitions.
[2025-02-05 18:52:48,878 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 18:52:48,878 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 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 385
[2025-02-05 18:52:48,879 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 18:52:48,894 INFO  L225             Difference]: With dead ends: 12090
[2025-02-05 18:52:48,894 INFO  L226             Difference]: Without dead ends: 6129
[2025-02-05 18:52:48,901 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 18:52:48,902 INFO  L435           NwaCegarLoop]: 7702 mSDtfsCounter, 0 mSDsluCounter, 15396 mSDsCounter, 0 mSdLazyCounter, 4558 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23098 SdHoareTripleChecker+Invalid, 4558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-02-05 18:52:48,902 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23098 Invalid, 4558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4558 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-02-05 18:52:48,910 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6129 states.
[2025-02-05 18:52:48,980 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 6129.
[2025-02-05 18:52:48,988 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6129 states, 6128 states have (on average 1.5053851174934725) internal successors, (9225), 6128 states have internal predecessors, (9225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:48,997 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 9225 transitions.
[2025-02-05 18:52:48,998 INFO  L78                 Accepts]: Start accepts. Automaton has 6129 states and 9225 transitions. Word has length 385
[2025-02-05 18:52:48,998 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 18:52:48,998 INFO  L471      AbstractCegarLoop]: Abstraction has 6129 states and 9225 transitions.
[2025-02-05 18:52:48,998 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:48,998 INFO  L276                IsEmpty]: Start isEmpty. Operand 6129 states and 9225 transitions.
[2025-02-05 18:52:49,002 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 387
[2025-02-05 18:52:49,003 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 18:52:49,004 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]
[2025-02-05 18:52:49,004 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-05 18:52:49,004 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 18:52:49,005 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 18:52:49,006 INFO  L85        PathProgramCache]: Analyzing trace with hash 2023721510, now seen corresponding path program 1 times
[2025-02-05 18:52:49,007 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 18:52:49,007 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674608143]
[2025-02-05 18:52:49,007 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 18:52:49,007 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 18:52:49,080 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 386 statements into 1 equivalence classes.
[2025-02-05 18:52:49,139 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 386 of 386 statements.
[2025-02-05 18:52:49,139 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 18:52:49,139 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 18:52:49,734 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 18:52:49,735 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 18:52:49,735 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674608143]
[2025-02-05 18:52:49,735 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674608143] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 18:52:49,735 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 18:52:49,735 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-05 18:52:49,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687934860]
[2025-02-05 18:52:49,736 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 18:52:49,736 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-05 18:52:49,736 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 18:52:49,737 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-05 18:52:49,737 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-02-05 18:52:49,737 INFO  L87              Difference]: Start difference. First operand 6129 states and 9225 transitions. Second operand  has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:52,770 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 18:52:52,770 INFO  L93              Difference]: Finished difference Result 18041 states and 27160 transitions.
[2025-02-05 18:52:52,770 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-02-05 18:52:52,771 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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 386
[2025-02-05 18:52:52,771 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 18:52:52,795 INFO  L225             Difference]: With dead ends: 18041
[2025-02-05 18:52:52,795 INFO  L226             Difference]: Without dead ends: 12078
[2025-02-05 18:52:52,803 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-02-05 18:52:52,805 INFO  L435           NwaCegarLoop]: 7700 mSDtfsCounter, 8825 mSDsluCounter, 22889 mSDsCounter, 0 mSdLazyCounter, 6040 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8825 SdHoareTripleChecker+Valid, 30589 SdHoareTripleChecker+Invalid, 6040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2025-02-05 18:52:52,806 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [8825 Valid, 30589 Invalid, 6040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 6040 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2025-02-05 18:52:52,819 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12078 states.
[2025-02-05 18:52:52,908 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12078 to 6713.
[2025-02-05 18:52:52,917 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6713 states, 6712 states have (on average 1.504916567342074) internal successors, (10101), 6712 states have internal predecessors, (10101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:52,924 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 10101 transitions.
[2025-02-05 18:52:52,925 INFO  L78                 Accepts]: Start accepts. Automaton has 6713 states and 10101 transitions. Word has length 386
[2025-02-05 18:52:52,926 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 18:52:52,926 INFO  L471      AbstractCegarLoop]: Abstraction has 6713 states and 10101 transitions.
[2025-02-05 18:52:52,926 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:52:52,926 INFO  L276                IsEmpty]: Start isEmpty. Operand 6713 states and 10101 transitions.
[2025-02-05 18:52:52,997 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3232
[2025-02-05 18:52:52,997 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 18:52:52,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 18:52:52,999 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-05 18:52:52,999 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 18:52:53,000 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 18:52:53,001 INFO  L85        PathProgramCache]: Analyzing trace with hash -876873919, now seen corresponding path program 1 times
[2025-02-05 18:52:53,002 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 18:52:53,002 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316856149]
[2025-02-05 18:52:53,002 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 18:52:53,002 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 18:52:53,379 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3231 statements into 1 equivalence classes.
[2025-02-05 18:52:58,485 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3231 of 3231 statements.
[2025-02-05 18:52:58,486 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 18:52:58,486 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 18:53:03,491 INFO  L134       CoverageAnalysis]: Checked inductivity of 298 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 18:53:03,492 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 18:53:03,492 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316856149]
[2025-02-05 18:53:03,492 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316856149] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 18:53:03,492 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 18:53:03,492 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 18:53:03,492 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34096657]
[2025-02-05 18:53:03,492 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 18:53:03,494 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 18:53:03,494 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 18:53:03,496 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 18:53:03,496 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 18:53:03,497 INFO  L87              Difference]: Start difference. First operand 6713 states and 10101 transitions. Second operand  has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:53:04,958 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 18:53:04,958 INFO  L93              Difference]: Finished difference Result 12677 states and 19080 transitions.
[2025-02-05 18:53:04,958 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 18:53:04,959 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 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 3231
[2025-02-05 18:53:04,959 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 18:53:04,969 INFO  L225             Difference]: With dead ends: 12677
[2025-02-05 18:53:04,969 INFO  L226             Difference]: Without dead ends: 6714
[2025-02-05 18:53:04,972 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 18:53:04,973 INFO  L435           NwaCegarLoop]: 7703 mSDtfsCounter, 0 mSDsluCounter, 7698 mSDsCounter, 0 mSdLazyCounter, 3036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15401 SdHoareTripleChecker+Invalid, 3036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-02-05 18:53:04,973 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15401 Invalid, 3036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3036 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-02-05 18:53:04,979 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6714 states.
[2025-02-05 18:53:05,041 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6714 to 6714.
[2025-02-05 18:53:05,049 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6714 states, 6713 states have (on average 1.504841352599434) internal successors, (10102), 6713 states have internal predecessors, (10102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:53:05,056 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6714 states to 6714 states and 10102 transitions.
[2025-02-05 18:53:05,056 INFO  L78                 Accepts]: Start accepts. Automaton has 6714 states and 10102 transitions. Word has length 3231
[2025-02-05 18:53:05,057 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 18:53:05,057 INFO  L471      AbstractCegarLoop]: Abstraction has 6714 states and 10102 transitions.
[2025-02-05 18:53:05,058 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:53:05,058 INFO  L276                IsEmpty]: Start isEmpty. Operand 6714 states and 10102 transitions.
[2025-02-05 18:53:05,102 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3232
[2025-02-05 18:53:05,103 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 18:53:05,104 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 18:53:05,105 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-02-05 18:53:05,105 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 18:53:05,106 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 18:53:05,107 INFO  L85        PathProgramCache]: Analyzing trace with hash 1556030626, now seen corresponding path program 1 times
[2025-02-05 18:53:05,108 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 18:53:05,108 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671342265]
[2025-02-05 18:53:05,108 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 18:53:05,108 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 18:53:05,500 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3231 statements into 1 equivalence classes.
[2025-02-05 18:53:10,445 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3231 of 3231 statements.
[2025-02-05 18:53:10,445 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 18:53:10,445 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 18:53:14,234 INFO  L134       CoverageAnalysis]: Checked inductivity of 298 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 18:53:14,234 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 18:53:14,235 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671342265]
[2025-02-05 18:53:14,235 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671342265] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 18:53:14,235 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 18:53:14,235 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 18:53:14,235 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167833847]
[2025-02-05 18:53:14,235 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 18:53:14,237 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 18:53:14,237 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 18:53:14,239 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 18:53:14,240 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 18:53:14,241 INFO  L87              Difference]: Start difference. First operand 6714 states and 10102 transitions. Second operand  has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:53:15,553 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 18:53:15,553 INFO  L93              Difference]: Finished difference Result 12679 states and 19082 transitions.
[2025-02-05 18:53:15,554 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 18:53:15,555 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 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 3231
[2025-02-05 18:53:15,555 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 18:53:15,564 INFO  L225             Difference]: With dead ends: 12679
[2025-02-05 18:53:15,564 INFO  L226             Difference]: Without dead ends: 6715
[2025-02-05 18:53:15,570 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 18:53:15,572 INFO  L435           NwaCegarLoop]: 7703 mSDtfsCounter, 0 mSDsluCounter, 7698 mSDsCounter, 0 mSdLazyCounter, 3036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15401 SdHoareTripleChecker+Invalid, 3036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-02-05 18:53:15,572 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15401 Invalid, 3036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3036 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-02-05 18:53:15,579 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6715 states.
[2025-02-05 18:53:15,637 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6715 to 6715.
[2025-02-05 18:53:15,645 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6715 states, 6714 states have (on average 1.5047661602621387) internal successors, (10103), 6714 states have internal predecessors, (10103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:53:15,652 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6715 states to 6715 states and 10103 transitions.
[2025-02-05 18:53:15,652 INFO  L78                 Accepts]: Start accepts. Automaton has 6715 states and 10103 transitions. Word has length 3231
[2025-02-05 18:53:15,653 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 18:53:15,654 INFO  L471      AbstractCegarLoop]: Abstraction has 6715 states and 10103 transitions.
[2025-02-05 18:53:15,655 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 18:53:15,655 INFO  L276                IsEmpty]: Start isEmpty. Operand 6715 states and 10103 transitions.
[2025-02-05 18:53:15,747 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3232
[2025-02-05 18:53:15,748 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 18:53:15,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2025-02-05 18:53:15,750 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-02-05 18:53:15,751 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 18:53:15,752 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 18:53:15,753 INFO  L85        PathProgramCache]: Analyzing trace with hash -1734549565, now seen corresponding path program 1 times
[2025-02-05 18:53:15,754 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 18:53:15,754 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129172334]
[2025-02-05 18:53:15,754 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 18:53:15,754 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 18:53:16,488 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3231 statements into 1 equivalence classes.