./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.2.prop1-back-serstep.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.sokoban.2.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 f88935987963f04c0c1a0b907818cf34062bda3c176c194b6b68279727a9fc57
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-8fc3dc6-m
[2025-03-16 22:36:06,332 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-16 22:36:06,385 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-16 22:36:06,389 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-16 22:36:06,391 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-16 22:36:06,413 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-16 22:36:06,414 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-16 22:36:06,414 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-16 22:36:06,415 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-16 22:36:06,415 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-16 22:36:06,415 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-16 22:36:06,416 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-16 22:36:06,416 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-16 22:36:06,416 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-16 22:36:06,416 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-16 22:36:06,417 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-16 22:36:06,417 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-16 22:36:06,417 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-16 22:36:06,417 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-16 22:36:06,417 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-16 22:36:06,417 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-16 22:36:06,417 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-16 22:36:06,417 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-16 22:36:06,417 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-16 22:36:06,418 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-16 22:36:06,418 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-16 22:36:06,418 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-16 22:36:06,418 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-16 22:36:06,418 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-16 22:36:06,418 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 22:36:06,418 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-16 22:36:06,418 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-16 22:36:06,419 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-16 22:36:06,419 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-16 22:36:06,419 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-16 22:36:06,419 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-16 22:36:06,419 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-16 22:36:06,419 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-16 22:36:06,419 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-16 22:36:06,419 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-16 22:36:06,419 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 -> f88935987963f04c0c1a0b907818cf34062bda3c176c194b6b68279727a9fc57
[2025-03-16 22:36:06,647 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-16 22:36:06,654 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-16 22:36:06,657 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-16 22:36:06,658 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-16 22:36:06,658 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-16 22:36:06,659 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.2.prop1-back-serstep.c
[2025-03-16 22:36:07,790 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee1ae370/1af99ec7126b489fa419a2575e5dcd4f/FLAG4252ba5bf
[2025-03-16 22:36:08,277 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-16 22:36:08,278 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.2.prop1-back-serstep.c
[2025-03-16 22:36:08,309 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee1ae370/1af99ec7126b489fa419a2575e5dcd4f/FLAG4252ba5bf
[2025-03-16 22:36:08,354 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee1ae370/1af99ec7126b489fa419a2575e5dcd4f
[2025-03-16 22:36:08,356 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-16 22:36:08,357 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-16 22:36:08,357 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-16 22:36:08,357 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-16 22:36:08,360 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-16 22:36:08,361 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 10:36:08" (1/1) ...
[2025-03-16 22:36:08,361 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc95332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:08, skipping insertion in model container
[2025-03-16 22:36:08,361 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 10:36:08" (1/1) ...
[2025-03-16 22:36:08,442 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-16 22:36:08,618 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.sokoban.2.prop1-back-serstep.c[1175,1188]
[2025-03-16 22:36:09,287 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 22:36:09,314 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-16 22:36:09,332 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.sokoban.2.prop1-back-serstep.c[1175,1188]
[2025-03-16 22:36:09,765 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 22:36:09,776 INFO  L204         MainTranslator]: Completed translation
[2025-03-16 22:36:09,777 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09 WrapperNode
[2025-03-16 22:36:09,777 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-16 22:36:09,778 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-16 22:36:09,778 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-16 22:36:09,778 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-16 22:36:09,782 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:09,906 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:11,057 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20001
[2025-03-16 22:36:11,058 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-16 22:36:11,058 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-16 22:36:11,059 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-16 22:36:11,059 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-16 22:36:11,065 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:11,065 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:11,552 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:11,817 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 22:36:11,817 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:11,824 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:12,269 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:12,334 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:12,422 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:12,492 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:12,728 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-16 22:36:12,729 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-16 22:36:12,729 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-16 22:36:12,729 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-16 22:36:12,730 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (1/1) ...
[2025-03-16 22:36:12,734 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 22:36:12,744 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 22:36:12,755 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 22:36:12,756 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 22:36:12,772 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-16 22:36:12,772 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-16 22:36:12,772 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-16 22:36:12,772 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-16 22:36:13,848 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-16 22:36:13,849 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-16 22:36:39,055 INFO  L?                        ?]: Removed 13917 outVars from TransFormulas that were not future-live.
[2025-03-16 22:36:39,055 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-16 22:36:39,312 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-16 22:36:39,312 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-16 22:36:39,313 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 10:36:39 BoogieIcfgContainer
[2025-03-16 22:36:39,313 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-16 22:36:39,315 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-16 22:36:39,315 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-16 22:36:39,319 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-16 22:36:39,319 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 10:36:08" (1/3) ...
[2025-03-16 22:36:39,320 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f7f138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:36:39, skipping insertion in model container
[2025-03-16 22:36:39,320 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:36:09" (2/3) ...
[2025-03-16 22:36:39,320 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f7f138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:36:39, skipping insertion in model container
[2025-03-16 22:36:39,321 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 10:36:39" (3/3) ...
[2025-03-16 22:36:39,322 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sokoban.2.prop1-back-serstep.c
[2025-03-16 22:36:39,333 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-16 22:36:39,334 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.sokoban.2.prop1-back-serstep.c that has 1 procedures, 4620 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-16 22:36:39,434 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-16 22:36:39,443 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;@3ded5260, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-16 22:36:39,444 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-16 22:36:39,457 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4620 states, 4618 states have (on average 1.5) internal successors, (6927), 4619 states have internal predecessors, (6927), 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 22:36:39,475 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 413
[2025-03-16 22:36:39,476 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:36:39,476 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]
[2025-03-16 22:36:39,477 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:36:39,480 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:36:39,480 INFO  L85        PathProgramCache]: Analyzing trace with hash -997001783, now seen corresponding path program 1 times
[2025-03-16 22:36:39,485 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:36:39,485 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864009107]
[2025-03-16 22:36:39,486 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:36:39,486 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:36:39,690 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 412 statements into 1 equivalence classes.
[2025-03-16 22:36:39,983 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 412 of 412 statements.
[2025-03-16 22:36:39,983 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 22:36:39,983 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 22:36:41,356 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 22:36:41,357 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 22:36:41,357 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864009107]
[2025-03-16 22:36:41,357 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864009107] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 22:36:41,357 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 22:36:41,358 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 22:36:41,359 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908826393]
[2025-03-16 22:36:41,360 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 22:36:41,364 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 22:36:41,364 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 22:36:41,380 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 22:36:41,381 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 22:36:41,390 INFO  L87              Difference]: Start difference. First operand  has 4620 states, 4618 states have (on average 1.5) internal successors, (6927), 4619 states have internal predecessors, (6927), 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 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 22:36:43,551 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 22:36:43,552 INFO  L93              Difference]: Finished difference Result 8975 states and 13459 transitions.
[2025-03-16 22:36:43,553 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 22:36:43,554 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 412
[2025-03-16 22:36:43,555 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 22:36:43,587 INFO  L225             Difference]: With dead ends: 8975
[2025-03-16 22:36:43,588 INFO  L226             Difference]: Without dead ends: 4620
[2025-03-16 22:36:43,598 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 22:36:43,600 INFO  L435           NwaCegarLoop]: 5769 mSDtfsCounter, 0 mSDsluCounter, 11533 mSDsCounter, 0 mSdLazyCounter, 3469 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17302 SdHoareTripleChecker+Invalid, 3469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2025-03-16 22:36:43,601 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17302 Invalid, 3469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3469 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2025-03-16 22:36:43,620 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4620 states.
[2025-03-16 22:36:43,736 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4620 to 4620.
[2025-03-16 22:36:43,743 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4620 states, 4619 states have (on average 1.4994587573067764) internal successors, (6926), 4619 states have internal predecessors, (6926), 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 22:36:43,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 6926 transitions.
[2025-03-16 22:36:43,761 INFO  L78                 Accepts]: Start accepts. Automaton has 4620 states and 6926 transitions. Word has length 412
[2025-03-16 22:36:43,762 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 22:36:43,762 INFO  L471      AbstractCegarLoop]: Abstraction has 4620 states and 6926 transitions.
[2025-03-16 22:36:43,763 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 22:36:43,763 INFO  L276                IsEmpty]: Start isEmpty. Operand 4620 states and 6926 transitions.
[2025-03-16 22:36:43,769 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 414
[2025-03-16 22:36:43,769 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:36:43,769 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]
[2025-03-16 22:36:43,770 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-16 22:36:43,770 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:36:43,771 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:36:43,771 INFO  L85        PathProgramCache]: Analyzing trace with hash -837598415, now seen corresponding path program 1 times
[2025-03-16 22:36:43,771 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:36:43,771 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079578432]
[2025-03-16 22:36:43,771 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:36:43,772 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:36:43,895 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 413 statements into 1 equivalence classes.
[2025-03-16 22:36:43,960 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 413 of 413 statements.
[2025-03-16 22:36:43,960 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 22:36:43,960 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 22:36:44,557 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 22:36:44,557 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 22:36:44,557 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079578432]
[2025-03-16 22:36:44,557 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079578432] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 22:36:44,558 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 22:36:44,558 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 22:36:44,558 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800793750]
[2025-03-16 22:36:44,558 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 22:36:44,559 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 22:36:44,559 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 22:36:44,559 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 22:36:44,559 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 22:36:44,560 INFO  L87              Difference]: Start difference. First operand 4620 states and 6926 transitions. Second operand  has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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 22:36:46,447 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 22:36:46,448 INFO  L93              Difference]: Finished difference Result 8977 states and 13458 transitions.
[2025-03-16 22:36:46,448 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 22:36:46,448 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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 413
[2025-03-16 22:36:46,449 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 22:36:46,462 INFO  L225             Difference]: With dead ends: 8977
[2025-03-16 22:36:46,462 INFO  L226             Difference]: Without dead ends: 4622
[2025-03-16 22:36:46,469 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 22:36:46,469 INFO  L435           NwaCegarLoop]: 5769 mSDtfsCounter, 0 mSDsluCounter, 11530 mSDsCounter, 0 mSdLazyCounter, 3472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17299 SdHoareTripleChecker+Invalid, 3472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2025-03-16 22:36:46,469 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17299 Invalid, 3472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3472 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2025-03-16 22:36:46,477 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4622 states.
[2025-03-16 22:36:46,528 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 4622.
[2025-03-16 22:36:46,533 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4622 states, 4621 states have (on average 1.4992425881843756) internal successors, (6928), 4621 states have internal predecessors, (6928), 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 22:36:46,540 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4622 states to 4622 states and 6928 transitions.
[2025-03-16 22:36:46,540 INFO  L78                 Accepts]: Start accepts. Automaton has 4622 states and 6928 transitions. Word has length 413
[2025-03-16 22:36:46,541 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 22:36:46,541 INFO  L471      AbstractCegarLoop]: Abstraction has 4622 states and 6928 transitions.
[2025-03-16 22:36:46,541 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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 22:36:46,541 INFO  L276                IsEmpty]: Start isEmpty. Operand 4622 states and 6928 transitions.
[2025-03-16 22:36:46,547 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 415
[2025-03-16 22:36:46,547 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:36:46,547 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]
[2025-03-16 22:36:46,548 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-16 22:36:46,548 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:36:46,548 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:36:46,549 INFO  L85        PathProgramCache]: Analyzing trace with hash 1735768772, now seen corresponding path program 1 times
[2025-03-16 22:36:46,549 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:36:46,549 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774342528]
[2025-03-16 22:36:46,549 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:36:46,549 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:36:46,672 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 414 statements into 1 equivalence classes.
[2025-03-16 22:36:46,735 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 414 of 414 statements.
[2025-03-16 22:36:46,735 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 22:36:46,735 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 22:36:47,344 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 22:36:47,344 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 22:36:47,344 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774342528]
[2025-03-16 22:36:47,344 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774342528] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 22:36:47,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 22:36:47,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 22:36:47,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133493959]
[2025-03-16 22:36:47,345 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 22:36:47,345 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-16 22:36:47,345 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 22:36:47,346 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-16 22:36:47,346 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-03-16 22:36:47,347 INFO  L87              Difference]: Start difference. First operand 4622 states and 6928 transitions. Second operand  has 5 states, 5 states have (on average 82.8) internal successors, (414), 4 states have internal predecessors, (414), 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 22:36:50,177 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 22:36:50,177 INFO  L93              Difference]: Finished difference Result 13322 states and 19971 transitions.
[2025-03-16 22:36:50,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-16 22:36:50,179 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 82.8) internal successors, (414), 4 states have internal predecessors, (414), 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 414
[2025-03-16 22:36:50,179 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 22:36:50,200 INFO  L225             Difference]: With dead ends: 13322
[2025-03-16 22:36:50,201 INFO  L226             Difference]: Without dead ends: 8965
[2025-03-16 22:36:50,207 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-03-16 22:36:50,208 INFO  L435           NwaCegarLoop]: 5767 mSDtfsCounter, 6502 mSDsluCounter, 16965 mSDsCounter, 0 mSdLazyCounter, 4567 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6502 SdHoareTripleChecker+Valid, 22732 SdHoareTripleChecker+Invalid, 4567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2025-03-16 22:36:50,208 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6502 Valid, 22732 Invalid, 4567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4567 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2025-03-16 22:36:50,217 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8965 states.
[2025-03-16 22:36:50,295 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8965 to 5168.
[2025-03-16 22:36:50,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5168 states, 5167 states have (on average 1.4991290884459068) internal successors, (7746), 5167 states have internal predecessors, (7746), 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 22:36:50,316 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 7746 transitions.
[2025-03-16 22:36:50,317 INFO  L78                 Accepts]: Start accepts. Automaton has 5168 states and 7746 transitions. Word has length 414
[2025-03-16 22:36:50,317 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 22:36:50,318 INFO  L471      AbstractCegarLoop]: Abstraction has 5168 states and 7746 transitions.
[2025-03-16 22:36:50,318 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 82.8) internal successors, (414), 4 states have internal predecessors, (414), 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 22:36:50,318 INFO  L276                IsEmpty]: Start isEmpty. Operand 5168 states and 7746 transitions.
[2025-03-16 22:36:50,437 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2592
[2025-03-16 22:36:50,437 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:36:50,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:36:50,439 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-16 22:36:50,440 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:36:50,441 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:36:50,442 INFO  L85        PathProgramCache]: Analyzing trace with hash -1931412066, now seen corresponding path program 1 times
[2025-03-16 22:36:50,442 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:36:50,443 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440009302]
[2025-03-16 22:36:50,443 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:36:50,443 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:36:51,274 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2591 statements into 1 equivalence classes.
[2025-03-16 22:37:01,241 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2591 of 2591 statements.
[2025-03-16 22:37:01,242 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 22:37:01,242 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 22:37:09,406 INFO  L134       CoverageAnalysis]: Checked inductivity of 278 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2025-03-16 22:37:09,407 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 22:37:09,407 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440009302]
[2025-03-16 22:37:09,407 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440009302] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 22:37:09,407 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 22:37:09,408 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-16 22:37:09,408 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812952487]
[2025-03-16 22:37:09,408 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 22:37:09,410 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-16 22:37:09,411 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 22:37:09,413 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-16 22:37:09,413 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-16 22:37:09,414 INFO  L87              Difference]: Start difference. First operand 5168 states and 7746 transitions. Second operand  has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 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 22:37:12,087 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 22:37:12,088 INFO  L93              Difference]: Finished difference Result 9529 states and 14282 transitions.
[2025-03-16 22:37:12,088 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 22:37:12,089 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 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 2591
[2025-03-16 22:37:12,092 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 22:37:12,105 INFO  L225             Difference]: With dead ends: 9529
[2025-03-16 22:37:12,105 INFO  L226             Difference]: Without dead ends: 5172
[2025-03-16 22:37:12,109 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-16 22:37:12,110 INFO  L435           NwaCegarLoop]: 5769 mSDtfsCounter, 0 mSDsluCounter, 17294 mSDsCounter, 0 mSdLazyCounter, 4632 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23063 SdHoareTripleChecker+Invalid, 4633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2025-03-16 22:37:12,110 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23063 Invalid, 4633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4632 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2025-03-16 22:37:12,116 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5172 states.
[2025-03-16 22:37:12,168 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5172 to 5168.
[2025-03-16 22:37:12,174 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5168 states, 5167 states have (on average 1.4991290884459068) internal successors, (7746), 5167 states have internal predecessors, (7746), 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 22:37:12,180 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 7746 transitions.
[2025-03-16 22:37:12,180 INFO  L78                 Accepts]: Start accepts. Automaton has 5168 states and 7746 transitions. Word has length 2591
[2025-03-16 22:37:12,183 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 22:37:12,183 INFO  L471      AbstractCegarLoop]: Abstraction has 5168 states and 7746 transitions.
[2025-03-16 22:37:12,184 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 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 22:37:12,184 INFO  L276                IsEmpty]: Start isEmpty. Operand 5168 states and 7746 transitions.
[2025-03-16 22:37:12,305 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2593
[2025-03-16 22:37:12,306 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:37:12,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-16 22:37:12,307 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-16 22:37:12,308 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:37:12,309 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:37:12,310 INFO  L85        PathProgramCache]: Analyzing trace with hash 2144137244, now seen corresponding path program 1 times
[2025-03-16 22:37:12,310 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:37:12,310 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818739186]
[2025-03-16 22:37:12,311 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:37:12,311 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:37:13,004 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2592 statements into 1 equivalence classes.