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


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


Checking for ERROR reachability
Using default analysis
Version e2fb8bed
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.exit.4.prop1-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 24ed638297490cb2e0541b4692cda255b930a8db7856875e64e0f24218157a0b
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-e2fb8be-m
[2025-03-08 08:37:58,565 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-08 08:37:58,625 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-08 08:37:58,633 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-08 08:37:58,635 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-08 08:37:58,658 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-08 08:37:58,659 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-08 08:37:58,659 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-08 08:37:58,660 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-08 08:37:58,660 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-08 08:37:58,660 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-08 08:37:58,661 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-08 08:37:58,661 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-08 08:37:58,661 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-08 08:37:58,661 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-08 08:37:58,661 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-08 08:37:58,662 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-08 08:37:58,662 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-08 08:37:58,662 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-08 08:37:58,662 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-08 08:37:58,662 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-08 08:37:58,662 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-08 08:37:58,662 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-08 08:37:58,662 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-08 08:37:58,662 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-08 08:37:58,662 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-08 08:37:58,663 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-08 08:37:58,663 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-08 08:37:58,663 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-08 08:37:58,663 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-08 08:37:58,663 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-08 08:37:58,663 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-08 08:37:58,663 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-08 08:37:58,664 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-08 08:37:58,664 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-08 08:37:58,664 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-08 08:37:58,664 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-08 08:37:58,664 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-08 08:37:58,664 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-08 08:37:58,664 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-08 08:37:58,664 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/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 -> 24ed638297490cb2e0541b4692cda255b930a8db7856875e64e0f24218157a0b
[2025-03-08 08:37:58,898 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-08 08:37:58,903 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-08 08:37:58,904 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-08 08:37:58,905 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-08 08:37:58,906 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-08 08:37:58,906 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.exit.4.prop1-back-serstep.c
[2025-03-08 08:38:00,032 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad241908c/0c19b9d5170d4671a8e847119ffadf52/FLAGfee944d55
[2025-03-08 08:38:00,507 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-08 08:38:00,508 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.exit.4.prop1-back-serstep.c
[2025-03-08 08:38:00,533 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad241908c/0c19b9d5170d4671a8e847119ffadf52/FLAGfee944d55
[2025-03-08 08:38:00,613 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad241908c/0c19b9d5170d4671a8e847119ffadf52
[2025-03-08 08:38:00,615 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-08 08:38:00,617 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-08 08:38:00,618 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-08 08:38:00,618 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-08 08:38:00,621 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-08 08:38:00,621 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 08:38:00" (1/1) ...
[2025-03-08 08:38:00,622 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a864e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:00, skipping insertion in model container
[2025-03-08 08:38:00,622 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 08:38:00" (1/1) ...
[2025-03-08 08:38:00,693 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-08 08:38:00,859 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.exit.4.prop1-back-serstep.c[1172,1185]
[2025-03-08 08:38:01,378 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-08 08:38:01,387 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-08 08:38:01,394 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.exit.4.prop1-back-serstep.c[1172,1185]
[2025-03-08 08:38:01,709 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-08 08:38:01,726 INFO  L204         MainTranslator]: Completed translation
[2025-03-08 08:38:01,727 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01 WrapperNode
[2025-03-08 08:38:01,728 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-08 08:38:01,729 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-08 08:38:01,729 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-08 08:38:01,729 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-08 08:38:01,734 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:01,845 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:02,921 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16904
[2025-03-08 08:38:02,922 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-08 08:38:02,923 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-08 08:38:02,923 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-08 08:38:02,923 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-08 08:38:02,929 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:02,930 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:03,334 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:03,517 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].
[2025-03-08 08:38:03,518 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:03,518 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:03,845 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:03,905 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:03,957 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:04,005 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:04,203 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-08 08:38:04,204 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-08 08:38:04,204 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-08 08:38:04,204 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-08 08:38:04,205 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (1/1) ...
[2025-03-08 08:38:04,209 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-08 08:38:04,217 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-08 08:38:04,229 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-03-08 08:38:04,231 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-03-08 08:38:04,248 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-08 08:38:04,248 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-08 08:38:04,248 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-08 08:38:04,248 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-08 08:38:05,107 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-08 08:38:05,108 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-08 08:38:39,848 INFO  L?                        ?]: Removed 9525 outVars from TransFormulas that were not future-live.
[2025-03-08 08:38:39,848 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-08 08:38:40,184 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-08 08:38:40,185 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-08 08:38:40,185 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 08:38:40 BoogieIcfgContainer
[2025-03-08 08:38:40,185 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-08 08:38:40,187 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-08 08:38:40,187 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-08 08:38:40,190 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-08 08:38:40,190 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 08:38:00" (1/3) ...
[2025-03-08 08:38:40,191 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f2308c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 08:38:40, skipping insertion in model container
[2025-03-08 08:38:40,191 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:38:01" (2/3) ...
[2025-03-08 08:38:40,191 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f2308c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 08:38:40, skipping insertion in model container
[2025-03-08 08:38:40,191 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 08:38:40" (3/3) ...
[2025-03-08 08:38:40,192 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.exit.4.prop1-back-serstep.c
[2025-03-08 08:38:40,203 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-08 08:38:40,204 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.exit.4.prop1-back-serstep.c that has 1 procedures, 5646 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-08 08:38:40,315 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-08 08:38:40,327 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;@1c000aee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-08 08:38:40,327 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-08 08:38:40,343 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5646 states, 5644 states have (on average 1.499822820694543) internal successors, (8465), 5645 states have internal predecessors, (8465), 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)
[2025-03-08 08:38:40,379 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 534
[2025-03-08 08:38:40,379 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:38:40,380 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 08:38:40,381 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:38:40,385 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:38:40,386 INFO  L85        PathProgramCache]: Analyzing trace with hash 521615490, now seen corresponding path program 1 times
[2025-03-08 08:38:40,391 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:38:40,392 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689359467]
[2025-03-08 08:38:40,392 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:38:40,394 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:38:40,559 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 533 statements into 1 equivalence classes.
[2025-03-08 08:38:40,868 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 533 of 533 statements.
[2025-03-08 08:38:40,868 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:38:40,868 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 08:38:42,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 08:38:42,722 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 08:38:42,722 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689359467]
[2025-03-08 08:38:42,722 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689359467] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 08:38:42,722 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 08:38:42,723 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 08:38:42,725 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659294165]
[2025-03-08 08:38:42,728 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 08:38:42,732 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 08:38:42,732 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 08:38:42,766 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 08:38:42,766 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 08:38:42,790 INFO  L87              Difference]: Start difference. First operand  has 5646 states, 5644 states have (on average 1.499822820694543) internal successors, (8465), 5645 states have internal predecessors, (8465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 08:38:45,322 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 08:38:45,323 INFO  L93              Difference]: Finished difference Result 11081 states and 16617 transitions.
[2025-03-08 08:38:45,325 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 08:38:45,326 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 533
[2025-03-08 08:38:45,330 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 08:38:45,362 INFO  L225             Difference]: With dead ends: 11081
[2025-03-08 08:38:45,362 INFO  L226             Difference]: Without dead ends: 5645
[2025-03-08 08:38:45,377 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
[2025-03-08 08:38:45,379 INFO  L435           NwaCegarLoop]: 7050 mSDtfsCounter, 0 mSDsluCounter, 14095 mSDsCounter, 0 mSdLazyCounter, 4237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21145 SdHoareTripleChecker+Invalid, 4237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2025-03-08 08:38:45,382 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21145 Invalid, 4237 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4237 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2025-03-08 08:38:45,402 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5645 states.
[2025-03-08 08:38:45,545 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 5645.
[2025-03-08 08:38:45,554 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5645 states, 5644 states have (on average 1.4994684620836287) internal successors, (8463), 5644 states have internal predecessors, (8463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 08:38:45,567 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 8463 transitions.
[2025-03-08 08:38:45,568 INFO  L78                 Accepts]: Start accepts. Automaton has 5645 states and 8463 transitions. Word has length 533
[2025-03-08 08:38:45,569 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 08:38:45,569 INFO  L471      AbstractCegarLoop]: Abstraction has 5645 states and 8463 transitions.
[2025-03-08 08:38:45,569 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 08:38:45,569 INFO  L276                IsEmpty]: Start isEmpty. Operand 5645 states and 8463 transitions.
[2025-03-08 08:38:45,576 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 535
[2025-03-08 08:38:45,576 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:38:45,576 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 08:38:45,577 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-08 08:38:45,577 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:38:45,578 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:38:45,578 INFO  L85        PathProgramCache]: Analyzing trace with hash -1005101834, now seen corresponding path program 1 times
[2025-03-08 08:38:45,578 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:38:45,578 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937248543]
[2025-03-08 08:38:45,578 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:38:45,578 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:38:45,661 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 534 statements into 1 equivalence classes.
[2025-03-08 08:38:45,729 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 534 of 534 statements.
[2025-03-08 08:38:45,729 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:38:45,729 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 08:38:46,372 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 08:38:46,373 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 08:38:46,373 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937248543]
[2025-03-08 08:38:46,373 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937248543] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 08:38:46,373 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 08:38:46,373 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 08:38:46,373 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985034490]
[2025-03-08 08:38:46,373 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 08:38:46,375 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 08:38:46,375 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 08:38:46,376 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 08:38:46,376 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 08:38:46,377 INFO  L87              Difference]: Start difference. First operand 5645 states and 8463 transitions. Second operand  has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 08:38:48,376 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 08:38:48,376 INFO  L93              Difference]: Finished difference Result 11082 states and 16615 transitions.
[2025-03-08 08:38:48,377 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 08:38:48,377 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 534
[2025-03-08 08:38:48,378 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 08:38:48,395 INFO  L225             Difference]: With dead ends: 11082
[2025-03-08 08:38:48,395 INFO  L226             Difference]: Without dead ends: 5647
[2025-03-08 08:38:48,404 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
[2025-03-08 08:38:48,404 INFO  L435           NwaCegarLoop]: 7050 mSDtfsCounter, 0 mSDsluCounter, 14092 mSDsCounter, 0 mSdLazyCounter, 4240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21142 SdHoareTripleChecker+Invalid, 4240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2025-03-08 08:38:48,405 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21142 Invalid, 4240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4240 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2025-03-08 08:38:48,415 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5647 states.
[2025-03-08 08:38:48,486 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5647 to 5647.
[2025-03-08 08:38:48,494 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5647 states, 5646 states have (on average 1.4992915338292596) internal successors, (8465), 5646 states have internal predecessors, (8465), 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)
[2025-03-08 08:38:48,502 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5647 states to 5647 states and 8465 transitions.
[2025-03-08 08:38:48,503 INFO  L78                 Accepts]: Start accepts. Automaton has 5647 states and 8465 transitions. Word has length 534
[2025-03-08 08:38:48,505 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 08:38:48,505 INFO  L471      AbstractCegarLoop]: Abstraction has 5647 states and 8465 transitions.
[2025-03-08 08:38:48,505 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 08:38:48,505 INFO  L276                IsEmpty]: Start isEmpty. Operand 5647 states and 8465 transitions.
[2025-03-08 08:38:48,512 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 536
[2025-03-08 08:38:48,512 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:38:48,512 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 08:38:48,513 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-08 08:38:48,513 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:38:48,516 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:38:48,517 INFO  L85        PathProgramCache]: Analyzing trace with hash 838131453, now seen corresponding path program 1 times
[2025-03-08 08:38:48,517 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:38:48,517 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695868843]
[2025-03-08 08:38:48,517 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:38:48,517 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:38:48,619 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 535 statements into 1 equivalence classes.
[2025-03-08 08:38:48,710 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 535 of 535 statements.
[2025-03-08 08:38:48,710 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:38:48,710 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 08:38:49,360 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 08:38:49,360 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 08:38:49,360 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695868843]
[2025-03-08 08:38:49,360 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695868843] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 08:38:49,361 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 08:38:49,361 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 08:38:49,361 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066503572]
[2025-03-08 08:38:49,361 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 08:38:49,361 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 08:38:49,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 08:38:49,363 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 08:38:49,363 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 08:38:49,363 INFO  L87              Difference]: Start difference. First operand 5647 states and 8465 transitions. Second operand  has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 08:38:51,279 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 08:38:51,279 INFO  L93              Difference]: Finished difference Result 11086 states and 16619 transitions.
[2025-03-08 08:38:51,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 08:38:51,280 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 535
[2025-03-08 08:38:51,281 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 08:38:51,294 INFO  L225             Difference]: With dead ends: 11086
[2025-03-08 08:38:51,294 INFO  L226             Difference]: Without dead ends: 5649
[2025-03-08 08:38:51,301 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
[2025-03-08 08:38:51,303 INFO  L435           NwaCegarLoop]: 7050 mSDtfsCounter, 0 mSDsluCounter, 14092 mSDsCounter, 0 mSdLazyCounter, 4240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21142 SdHoareTripleChecker+Invalid, 4240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2025-03-08 08:38:51,303 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21142 Invalid, 4240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4240 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2025-03-08 08:38:51,311 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5649 states.
[2025-03-08 08:38:51,368 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5649 to 5649.
[2025-03-08 08:38:51,376 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5649 states, 5648 states have (on average 1.499114730878187) internal successors, (8467), 5648 states have internal predecessors, (8467), 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)
[2025-03-08 08:38:51,383 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5649 states to 5649 states and 8467 transitions.
[2025-03-08 08:38:51,384 INFO  L78                 Accepts]: Start accepts. Automaton has 5649 states and 8467 transitions. Word has length 535
[2025-03-08 08:38:51,385 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 08:38:51,385 INFO  L471      AbstractCegarLoop]: Abstraction has 5649 states and 8467 transitions.
[2025-03-08 08:38:51,385 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 08:38:51,385 INFO  L276                IsEmpty]: Start isEmpty. Operand 5649 states and 8467 transitions.
[2025-03-08 08:38:51,388 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 537
[2025-03-08 08:38:51,388 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:38:51,389 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 08:38:51,389 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-08 08:38:51,389 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:38:51,390 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:38:51,390 INFO  L85        PathProgramCache]: Analyzing trace with hash 2100641787, now seen corresponding path program 1 times
[2025-03-08 08:38:51,390 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:38:51,390 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703853144]
[2025-03-08 08:38:51,391 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:38:51,391 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:38:51,476 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 536 statements into 1 equivalence classes.
[2025-03-08 08:38:51,541 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 536 of 536 statements.
[2025-03-08 08:38:51,541 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:38:51,541 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 08:38:52,081 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 08:38:52,081 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 08:38:52,081 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703853144]
[2025-03-08 08:38:52,081 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703853144] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 08:38:52,081 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 08:38:52,081 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-08 08:38:52,081 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763847909]
[2025-03-08 08:38:52,081 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 08:38:52,082 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-08 08:38:52,082 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 08:38:52,082 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-08 08:38:52,082 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-03-08 08:38:52,085 INFO  L87              Difference]: Start difference. First operand 5649 states and 8467 transitions. Second operand  has 5 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 08:38:55,053 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 08:38:55,053 INFO  L93              Difference]: Finished difference Result 16513 states and 24754 transitions.
[2025-03-08 08:38:55,053 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-08 08:38:55,054 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 536
[2025-03-08 08:38:55,056 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 08:38:55,084 INFO  L225             Difference]: With dead ends: 16513
[2025-03-08 08:38:55,084 INFO  L226             Difference]: Without dead ends: 11074
[2025-03-08 08:38:55,089 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
[2025-03-08 08:38:55,089 INFO  L435           NwaCegarLoop]: 7048 mSDtfsCounter, 7917 mSDsluCounter, 20878 mSDsCounter, 0 mSdLazyCounter, 5605 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7917 SdHoareTripleChecker+Valid, 27926 SdHoareTripleChecker+Invalid, 5605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2025-03-08 08:38:55,090 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7917 Valid, 27926 Invalid, 5605 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5605 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2025-03-08 08:38:55,102 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11074 states.
[2025-03-08 08:38:55,203 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 6489.
[2025-03-08 08:38:55,210 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6489 states, 6488 states have (on average 1.49922934648582) internal successors, (9727), 6488 states have internal predecessors, (9727), 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)
[2025-03-08 08:38:55,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 9727 transitions.
[2025-03-08 08:38:55,220 INFO  L78                 Accepts]: Start accepts. Automaton has 6489 states and 9727 transitions. Word has length 536
[2025-03-08 08:38:55,221 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 08:38:55,221 INFO  L471      AbstractCegarLoop]: Abstraction has 6489 states and 9727 transitions.
[2025-03-08 08:38:55,221 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-08 08:38:55,221 INFO  L276                IsEmpty]: Start isEmpty. Operand 6489 states and 9727 transitions.
[2025-03-08 08:38:55,317 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3254
[2025-03-08 08:38:55,317 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:38:55,319 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]
[2025-03-08 08:38:55,319 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-08 08:38:55,319 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:38:55,321 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:38:55,322 INFO  L85        PathProgramCache]: Analyzing trace with hash 1009021685, now seen corresponding path program 1 times
[2025-03-08 08:38:55,322 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:38:55,322 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236792809]
[2025-03-08 08:38:55,322 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:38:55,322 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:38:55,666 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3253 statements into 1 equivalence classes.
[2025-03-08 08:38:59,141 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3253 of 3253 statements.
[2025-03-08 08:38:59,142 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:38:59,142 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 08:39:06,072 INFO  L134       CoverageAnalysis]: Checked inductivity of 426 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked.
[2025-03-08 08:39:06,072 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 08:39:06,072 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236792809]
[2025-03-08 08:39:06,072 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236792809] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 08:39:06,072 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 08:39:06,073 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 08:39:06,073 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314115686]
[2025-03-08 08:39:06,073 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 08:39:06,076 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 08:39:06,076 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 08:39:06,077 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 08:39:06,077 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 08:39:06,078 INFO  L87              Difference]: Start difference. First operand 6489 states and 9727 transitions. Second operand  has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 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)
[2025-03-08 08:39:07,580 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 08:39:07,580 INFO  L93              Difference]: Finished difference Result 11934 states and 17889 transitions.
[2025-03-08 08:39:07,580 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 08:39:07,581 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 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 3253
[2025-03-08 08:39:07,584 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 08:39:07,595 INFO  L225             Difference]: With dead ends: 11934
[2025-03-08 08:39:07,595 INFO  L226             Difference]: Without dead ends: 6493
[2025-03-08 08:39:07,600 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
[2025-03-08 08:39:07,601 INFO  L435           NwaCegarLoop]: 7050 mSDtfsCounter, 0 mSDsluCounter, 14092 mSDsCounter, 0 mSdLazyCounter, 4240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21142 SdHoareTripleChecker+Invalid, 4240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-03-08 08:39:07,601 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21142 Invalid, 4240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4240 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-03-08 08:39:07,607 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6493 states.
[2025-03-08 08:39:07,755 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 6491.
[2025-03-08 08:39:07,761 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6491 states, 6490 states have (on average 1.499075500770416) internal successors, (9729), 6490 states have internal predecessors, (9729), 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)
[2025-03-08 08:39:07,767 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6491 states to 6491 states and 9729 transitions.
[2025-03-08 08:39:07,767 INFO  L78                 Accepts]: Start accepts. Automaton has 6491 states and 9729 transitions. Word has length 3253
[2025-03-08 08:39:07,769 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 08:39:07,770 INFO  L471      AbstractCegarLoop]: Abstraction has 6491 states and 9729 transitions.
[2025-03-08 08:39:07,771 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 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)
[2025-03-08 08:39:07,771 INFO  L276                IsEmpty]: Start isEmpty. Operand 6491 states and 9729 transitions.
[2025-03-08 08:39:07,815 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3255
[2025-03-08 08:39:07,815 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:39:07,816 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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[2025-03-08 08:39:07,818 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-08 08:39:07,818 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:39:07,819 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:39:07,820 INFO  L85        PathProgramCache]: Analyzing trace with hash 1914706622, now seen corresponding path program 1 times
[2025-03-08 08:39:07,820 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:39:07,820 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398138731]
[2025-03-08 08:39:07,821 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:39:07,821 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:39:08,146 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3254 statements into 1 equivalence classes.
[2025-03-08 08:39:09,514 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3254 of 3254 statements.
[2025-03-08 08:39:09,514 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:39:09,514 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat