./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop2-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 8fc3dc66
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.cambridge.6.prop2-func-interl.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 31f75e3a6c15bdab3d9f6821e95816cb19b70e3f3431428fbee7732730ce7148
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-8fc3dc6-m
[2025-03-16 21:35:22,583 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-16 21:35:22,659 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-16 21:35:22,663 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-16 21:35:22,665 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-16 21:35:22,688 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-16 21:35:22,688 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-16 21:35:22,689 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-16 21:35:22,689 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-16 21:35:22,689 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-16 21:35:22,689 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-16 21:35:22,690 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-16 21:35:22,690 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-16 21:35:22,690 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-16 21:35:22,690 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-16 21:35:22,691 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-16 21:35:22,691 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 21:35:22,691 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-16 21:35:22,691 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-16 21:35:22,692 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-16 21:35:22,692 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-16 21:35:22,692 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-16 21:35:22,692 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-16 21:35:22,692 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-16 21:35:22,692 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-16 21:35:22,692 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 -> 31f75e3a6c15bdab3d9f6821e95816cb19b70e3f3431428fbee7732730ce7148
[2025-03-16 21:35:22,948 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-16 21:35:22,957 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-16 21:35:22,958 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-16 21:35:22,959 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-16 21:35:22,960 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-16 21:35:22,961 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop2-func-interl.c
[2025-03-16 21:35:24,109 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d4ec3d6c/d5a10401b2634b469b4d7fc98ed2c05b/FLAG6c702c17b
[2025-03-16 21:35:24,610 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-16 21:35:24,611 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop2-func-interl.c
[2025-03-16 21:35:24,646 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d4ec3d6c/d5a10401b2634b469b4d7fc98ed2c05b/FLAG6c702c17b
[2025-03-16 21:35:24,664 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d4ec3d6c/d5a10401b2634b469b4d7fc98ed2c05b
[2025-03-16 21:35:24,667 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-16 21:35:24,668 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-16 21:35:24,671 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-16 21:35:24,671 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-16 21:35:24,676 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-16 21:35:24,676 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:35:24" (1/1) ...
[2025-03-16 21:35:24,678 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164ad910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:24, skipping insertion in model container
[2025-03-16 21:35:24,679 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:35:24" (1/1) ...
[2025-03-16 21:35:24,771 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-16 21:35:24,980 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.cambridge.6.prop2-func-interl.c[1176,1189]
[2025-03-16 21:35:25,590 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 21:35:25,600 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-16 21:35:25,608 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.cambridge.6.prop2-func-interl.c[1176,1189]
[2025-03-16 21:35:25,957 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 21:35:25,968 INFO  L204         MainTranslator]: Completed translation
[2025-03-16 21:35:25,969 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25 WrapperNode
[2025-03-16 21:35:25,969 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-16 21:35:25,970 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-16 21:35:25,970 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-16 21:35:25,970 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-16 21:35:25,974 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:26,129 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:27,420 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20137
[2025-03-16 21:35:27,421 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-16 21:35:27,421 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-16 21:35:27,421 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-16 21:35:27,421 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-16 21:35:27,429 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:27,429 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:27,773 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:28,007 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].
[2025-03-16 21:35:28,008 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:28,008 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:28,503 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:28,551 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:28,618 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:28,684 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:29,006 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-16 21:35:29,006 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-16 21:35:29,007 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-16 21:35:29,007 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-16 21:35:29,007 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (1/1) ...
[2025-03-16 21:35:29,011 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 21:35:29,019 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 21:35:29,029 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)
[2025-03-16 21:35:29,031 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
[2025-03-16 21:35:29,046 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-16 21:35:29,046 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-16 21:35:29,046 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-16 21:35:29,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-16 21:35:29,865 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-16 21:35:29,867 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-16 21:36:03,948 INFO  L?                        ?]: Removed 11883 outVars from TransFormulas that were not future-live.
[2025-03-16 21:36:03,948 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-16 21:36:04,327 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-16 21:36:04,328 INFO  L336             CfgBuilder]: Removed 4 assume(true) statements.
[2025-03-16 21:36:04,328 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 09:36:04 BoogieIcfgContainer
[2025-03-16 21:36:04,328 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-16 21:36:04,330 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-16 21:36:04,330 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-16 21:36:04,333 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-16 21:36:04,333 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 09:35:24" (1/3) ...
[2025-03-16 21:36:04,334 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697ca388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:36:04, skipping insertion in model container
[2025-03-16 21:36:04,334 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:35:25" (2/3) ...
[2025-03-16 21:36:04,334 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697ca388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:36:04, skipping insertion in model container
[2025-03-16 21:36:04,334 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 09:36:04" (3/3) ...
[2025-03-16 21:36:04,335 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.6.prop2-func-interl.c
[2025-03-16 21:36:04,347 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-16 21:36:04,348 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cambridge.6.prop2-func-interl.c that has 1 procedures, 6484 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-16 21:36:04,471 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-16 21:36:04,482 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;@74b8b84a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-16 21:36:04,482 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-16 21:36:04,500 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6484 states, 6482 states have (on average 1.5015427337241591) internal successors, (9733), 6483 states have internal predecessors, (9733), 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)
[2025-03-16 21:36:04,513 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 231
[2025-03-16 21:36:04,514 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:36:04,514 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]
[2025-03-16 21:36:04,515 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:36:04,518 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:36:04,518 INFO  L85        PathProgramCache]: Analyzing trace with hash -2099428786, now seen corresponding path program 1 times
[2025-03-16 21:36:04,523 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:36:04,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908996419]
[2025-03-16 21:36:04,523 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:36:04,524 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:36:04,677 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 230 statements into 1 equivalence classes.
[2025-03-16 21:36:04,835 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 230 of 230 statements.
[2025-03-16 21:36:04,835 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:36:04,836 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:36:05,595 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 21:36:05,596 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:36:05,596 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908996419]
[2025-03-16 21:36:05,596 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908996419] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:36:05,596 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:36:05,597 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 21:36:05,597 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007549420]
[2025-03-16 21:36:05,598 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:36:05,601 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:36:05,602 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:36:05,619 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:36:05,620 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:36:05,635 INFO  L87              Difference]: Start difference. First operand  has 6484 states, 6482 states have (on average 1.5015427337241591) internal successors, (9733), 6483 states have internal predecessors, (9733), 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 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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)
[2025-03-16 21:36:08,357 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:36:08,358 INFO  L93              Difference]: Finished difference Result 12711 states and 19083 transitions.
[2025-03-16 21:36:08,359 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:36:08,360 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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 230
[2025-03-16 21:36:08,361 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:36:08,395 INFO  L225             Difference]: With dead ends: 12711
[2025-03-16 21:36:08,395 INFO  L226             Difference]: Without dead ends: 6484
[2025-03-16 21:36:08,407 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
[2025-03-16 21:36:08,410 INFO  L435           NwaCegarLoop]: 8112 mSDtfsCounter, 0 mSDsluCounter, 16219 mSDsCounter, 0 mSdLazyCounter, 4858 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24331 SdHoareTripleChecker+Invalid, 4858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2025-03-16 21:36:08,410 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24331 Invalid, 4858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4858 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2025-03-16 21:36:08,434 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6484 states.
[2025-03-16 21:36:08,564 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6484 to 6484.
[2025-03-16 21:36:08,574 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6484 states, 6483 states have (on average 1.5011568718186026) internal successors, (9732), 6483 states have internal predecessors, (9732), 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)
[2025-03-16 21:36:08,589 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6484 states to 6484 states and 9732 transitions.
[2025-03-16 21:36:08,590 INFO  L78                 Accepts]: Start accepts. Automaton has 6484 states and 9732 transitions. Word has length 230
[2025-03-16 21:36:08,591 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:36:08,591 INFO  L471      AbstractCegarLoop]: Abstraction has 6484 states and 9732 transitions.
[2025-03-16 21:36:08,591 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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)
[2025-03-16 21:36:08,592 INFO  L276                IsEmpty]: Start isEmpty. Operand 6484 states and 9732 transitions.
[2025-03-16 21:36:08,595 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 232
[2025-03-16 21:36:08,596 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:36:08,597 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 21:36:08,597 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-16 21:36:08,597 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:36:08,598 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:36:08,598 INFO  L85        PathProgramCache]: Analyzing trace with hash -653093234, now seen corresponding path program 1 times
[2025-03-16 21:36:08,598 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:36:08,598 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305081646]
[2025-03-16 21:36:08,598 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:36:08,598 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:36:08,697 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes.
[2025-03-16 21:36:08,737 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements.
[2025-03-16 21:36:08,737 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:36:08,737 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:36:09,016 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 21:36:09,016 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:36:09,016 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305081646]
[2025-03-16 21:36:09,016 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305081646] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:36:09,016 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:36:09,017 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 21:36:09,017 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380905215]
[2025-03-16 21:36:09,017 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:36:09,018 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:36:09,019 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:36:09,019 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:36:09,020 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:36:09,020 INFO  L87              Difference]: Start difference. First operand 6484 states and 9732 transitions. Second operand  has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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)
[2025-03-16 21:36:11,669 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:36:11,670 INFO  L93              Difference]: Finished difference Result 12713 states and 19082 transitions.
[2025-03-16 21:36:11,670 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:36:11,670 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 231
[2025-03-16 21:36:11,671 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:36:11,690 INFO  L225             Difference]: With dead ends: 12713
[2025-03-16 21:36:11,690 INFO  L226             Difference]: Without dead ends: 6486
[2025-03-16 21:36:11,697 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
[2025-03-16 21:36:11,698 INFO  L435           NwaCegarLoop]: 8112 mSDtfsCounter, 0 mSDsluCounter, 16216 mSDsCounter, 0 mSdLazyCounter, 4861 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24328 SdHoareTripleChecker+Invalid, 4861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2025-03-16 21:36:11,698 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24328 Invalid, 4861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4861 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2025-03-16 21:36:11,708 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6486 states.
[2025-03-16 21:36:11,774 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6486 to 6486.
[2025-03-16 21:36:11,783 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6486 states, 6485 states have (on average 1.5010023130300694) internal successors, (9734), 6485 states have internal predecessors, (9734), 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)
[2025-03-16 21:36:11,797 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 9734 transitions.
[2025-03-16 21:36:11,798 INFO  L78                 Accepts]: Start accepts. Automaton has 6486 states and 9734 transitions. Word has length 231
[2025-03-16 21:36:11,799 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:36:11,799 INFO  L471      AbstractCegarLoop]: Abstraction has 6486 states and 9734 transitions.
[2025-03-16 21:36:11,799 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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)
[2025-03-16 21:36:11,799 INFO  L276                IsEmpty]: Start isEmpty. Operand 6486 states and 9734 transitions.
[2025-03-16 21:36:11,801 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 233
[2025-03-16 21:36:11,801 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:36:11,801 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]
[2025-03-16 21:36:11,801 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-16 21:36:11,801 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:36:11,801 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:36:11,801 INFO  L85        PathProgramCache]: Analyzing trace with hash -1134501303, now seen corresponding path program 1 times
[2025-03-16 21:36:11,802 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:36:11,802 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028877349]
[2025-03-16 21:36:11,802 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:36:11,802 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:36:11,885 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 232 statements into 1 equivalence classes.
[2025-03-16 21:36:11,919 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 232 of 232 statements.
[2025-03-16 21:36:11,920 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:36:11,920 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:36:12,149 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 21:36:12,150 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:36:12,150 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028877349]
[2025-03-16 21:36:12,150 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028877349] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:36:12,150 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:36:12,150 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 21:36:12,150 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286279511]
[2025-03-16 21:36:12,150 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:36:12,151 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:36:12,152 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:36:12,152 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:36:12,152 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:36:12,153 INFO  L87              Difference]: Start difference. First operand 6486 states and 9734 transitions. Second operand  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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)
[2025-03-16 21:36:14,327 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:36:14,328 INFO  L93              Difference]: Finished difference Result 12717 states and 19086 transitions.
[2025-03-16 21:36:14,329 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:36:14,329 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 232
[2025-03-16 21:36:14,329 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:36:14,344 INFO  L225             Difference]: With dead ends: 12717
[2025-03-16 21:36:14,344 INFO  L226             Difference]: Without dead ends: 6488
[2025-03-16 21:36:14,351 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
[2025-03-16 21:36:14,352 INFO  L435           NwaCegarLoop]: 8112 mSDtfsCounter, 0 mSDsluCounter, 16211 mSDsCounter, 0 mSdLazyCounter, 4866 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24323 SdHoareTripleChecker+Invalid, 4866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2025-03-16 21:36:14,352 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24323 Invalid, 4866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4866 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2025-03-16 21:36:14,359 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6488 states.
[2025-03-16 21:36:14,429 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6488 to 6488.
[2025-03-16 21:36:14,437 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6488 states, 6487 states have (on average 1.5008478495452444) internal successors, (9736), 6487 states have internal predecessors, (9736), 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)
[2025-03-16 21:36:14,447 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6488 states to 6488 states and 9736 transitions.
[2025-03-16 21:36:14,447 INFO  L78                 Accepts]: Start accepts. Automaton has 6488 states and 9736 transitions. Word has length 232
[2025-03-16 21:36:14,448 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:36:14,448 INFO  L471      AbstractCegarLoop]: Abstraction has 6488 states and 9736 transitions.
[2025-03-16 21:36:14,448 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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)
[2025-03-16 21:36:14,448 INFO  L276                IsEmpty]: Start isEmpty. Operand 6488 states and 9736 transitions.
[2025-03-16 21:36:14,450 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 234
[2025-03-16 21:36:14,450 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:36:14,450 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]
[2025-03-16 21:36:14,450 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-16 21:36:14,450 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:36:14,451 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:36:14,451 INFO  L85        PathProgramCache]: Analyzing trace with hash 1078571027, now seen corresponding path program 1 times
[2025-03-16 21:36:14,451 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:36:14,452 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584957203]
[2025-03-16 21:36:14,452 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:36:14,452 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:36:14,525 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 233 statements into 1 equivalence classes.
[2025-03-16 21:36:14,564 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 233 of 233 statements.
[2025-03-16 21:36:14,564 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:36:14,564 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:36:15,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 21:36:15,404 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:36:15,404 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584957203]
[2025-03-16 21:36:15,404 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584957203] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:36:15,404 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:36:15,404 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-03-16 21:36:15,404 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157308656]
[2025-03-16 21:36:15,404 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:36:15,404 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-03-16 21:36:15,404 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:36:15,405 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-03-16 21:36:15,405 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2025-03-16 21:36:15,405 INFO  L87              Difference]: Start difference. First operand 6488 states and 9736 transitions. Second operand  has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 6 states have internal predecessors, (233), 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)
[2025-03-16 21:36:21,140 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:36:21,141 INFO  L93              Difference]: Finished difference Result 18612 states and 27933 transitions.
[2025-03-16 21:36:21,141 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-16 21:36:21,141 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 6 states have internal predecessors, (233), 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 233
[2025-03-16 21:36:21,142 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:36:21,172 INFO  L225             Difference]: With dead ends: 18612
[2025-03-16 21:36:21,173 INFO  L226             Difference]: Without dead ends: 12381
[2025-03-16 21:36:21,181 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2025-03-16 21:36:21,182 INFO  L435           NwaCegarLoop]: 8106 mSDtfsCounter, 9011 mSDsluCounter, 40192 mSDsCounter, 0 mSdLazyCounter, 9697 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9011 SdHoareTripleChecker+Valid, 48298 SdHoareTripleChecker+Invalid, 9699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2025-03-16 21:36:21,182 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [9011 Valid, 48298 Invalid, 9699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 9697 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2025-03-16 21:36:21,198 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12381 states.
[2025-03-16 21:36:21,302 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12381 to 6676.
[2025-03-16 21:36:21,310 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6676 states, 6675 states have (on average 1.5008239700374533) internal successors, (10018), 6675 states have internal predecessors, (10018), 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)
[2025-03-16 21:36:21,317 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 10018 transitions.
[2025-03-16 21:36:21,318 INFO  L78                 Accepts]: Start accepts. Automaton has 6676 states and 10018 transitions. Word has length 233
[2025-03-16 21:36:21,319 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:36:21,319 INFO  L471      AbstractCegarLoop]: Abstraction has 6676 states and 10018 transitions.
[2025-03-16 21:36:21,319 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 6 states have internal predecessors, (233), 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)
[2025-03-16 21:36:21,319 INFO  L276                IsEmpty]: Start isEmpty. Operand 6676 states and 10018 transitions.
[2025-03-16 21:36:21,410 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3311
[2025-03-16 21:36:21,410 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:36:21,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-16 21:36:21,412 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-16 21:36:21,412 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:36:21,414 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:36:21,416 INFO  L85        PathProgramCache]: Analyzing trace with hash -1242945810, now seen corresponding path program 1 times
[2025-03-16 21:36:21,416 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:36:21,416 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835756714]
[2025-03-16 21:36:21,416 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:36:21,416 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:36:22,048 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3310 statements into 1 equivalence classes.
[2025-03-16 21:36:27,349 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3310 of 3310 statements.
[2025-03-16 21:36:27,350 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 21:36:27,350 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 21:36:33,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 21:36:33,684 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 21:36:33,685 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835756714]
[2025-03-16 21:36:33,685 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835756714] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 21:36:33,685 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 21:36:33,685 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 21:36:33,685 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711370228]
[2025-03-16 21:36:33,685 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 21:36:33,687 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 21:36:33,688 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 21:36:33,695 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 21:36:33,695 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 21:36:33,696 INFO  L87              Difference]: Start difference. First operand 6676 states and 10018 transitions. Second operand  has 4 states, 4 states have (on average 827.5) internal successors, (3310), 3 states have internal predecessors, (3310), 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)
[2025-03-16 21:36:36,506 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 21:36:36,506 INFO  L93              Difference]: Finished difference Result 12907 states and 19369 transitions.
[2025-03-16 21:36:36,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 21:36:36,511 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 827.5) internal successors, (3310), 3 states have internal predecessors, (3310), 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 3310
[2025-03-16 21:36:36,512 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 21:36:36,522 INFO  L225             Difference]: With dead ends: 12907
[2025-03-16 21:36:36,522 INFO  L226             Difference]: Without dead ends: 6676
[2025-03-16 21:36:36,527 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-16 21:36:36,529 INFO  L435           NwaCegarLoop]: 8107 mSDtfsCounter, 9503 mSDsluCounter, 8104 mSDsCounter, 0 mSdLazyCounter, 3243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9503 SdHoareTripleChecker+Valid, 16211 SdHoareTripleChecker+Invalid, 3243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2025-03-16 21:36:36,530 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [9503 Valid, 16211 Invalid, 3243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3243 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2025-03-16 21:36:36,541 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6676 states.
[2025-03-16 21:36:36,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 6676.
[2025-03-16 21:36:36,637 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6676 states, 6675 states have (on average 1.5006741573033708) internal successors, (10017), 6675 states have internal predecessors, (10017), 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)
[2025-03-16 21:36:36,652 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 10017 transitions.
[2025-03-16 21:36:36,652 INFO  L78                 Accepts]: Start accepts. Automaton has 6676 states and 10017 transitions. Word has length 3310
[2025-03-16 21:36:36,654 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 21:36:36,654 INFO  L471      AbstractCegarLoop]: Abstraction has 6676 states and 10017 transitions.
[2025-03-16 21:36:36,655 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 827.5) internal successors, (3310), 3 states have internal predecessors, (3310), 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)
[2025-03-16 21:36:36,657 INFO  L276                IsEmpty]: Start isEmpty. Operand 6676 states and 10017 transitions.
[2025-03-16 21:36:36,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3312
[2025-03-16 21:36:36,828 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 21:36:36,829 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-03-16 21:36:36,829 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-16 21:36:36,830 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 21:36:36,831 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 21:36:36,833 INFO  L85        PathProgramCache]: Analyzing trace with hash 1208620684, now seen corresponding path program 1 times
[2025-03-16 21:36:36,833 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 21:36:36,833 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611957358]
[2025-03-16 21:36:36,833 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 21:36:36,833 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 21:36:37,309 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3311 statements into 1 equivalence classes.