./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.7.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 48c9605d
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.7.prop1-back-serstep.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e90d822b8418ab452739178fa8c7d7c0054f2eb66f4a31edacd20595dede730c
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-48c9605-m
[2025-02-07 23:22:38,890 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-07 23:22:38,960 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-02-07 23:22:38,967 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-07 23:22:38,967 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-07 23:22:38,994 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-07 23:22:38,995 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-07 23:22:38,995 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-07 23:22:38,996 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-07 23:22:38,996 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-07 23:22:38,996 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-07 23:22:38,997 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-07 23:22:38,997 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-07 23:22:38,997 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-07 23:22:38,997 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-07 23:22:38,997 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-07 23:22:38,998 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-07 23:22:38,998 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-07 23:22:38,999 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-07 23:22:38,999 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-07 23:22:38,999 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-07 23:22:38,999 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-07 23:22:38,999 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-07 23:22:38,999 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-07 23:22:38,999 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-07 23:22:38,999 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-07 23:22:38,999 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-07 23:22:38,999 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-07 23:22:38,999 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 23:22:39,000 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-07 23:22:39,000 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e90d822b8418ab452739178fa8c7d7c0054f2eb66f4a31edacd20595dede730c
[2025-02-07 23:22:39,279 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-07 23:22:39,294 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-07 23:22:39,296 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-07 23:22:39,298 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-07 23:22:39,299 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-07 23:22:39,301 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.7.prop1-back-serstep.c
[2025-02-07 23:22:40,645 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/84c1d5012/413a4a19bddd45c3be084dbcc63384e4/FLAG68c5029e1
[2025-02-07 23:22:41,060 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-07 23:22:41,061 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.7.prop1-back-serstep.c
[2025-02-07 23:22:41,083 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/84c1d5012/413a4a19bddd45c3be084dbcc63384e4/FLAG68c5029e1
[2025-02-07 23:22:41,096 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/84c1d5012/413a4a19bddd45c3be084dbcc63384e4
[2025-02-07 23:22:41,098 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-07 23:22:41,099 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-07 23:22:41,100 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-07 23:22:41,101 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-07 23:22:41,104 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-07 23:22:41,106 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:22:41" (1/1) ...
[2025-02-07 23:22:41,106 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b21774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:41, skipping insertion in model container
[2025-02-07 23:22:41,107 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:22:41" (1/1) ...
[2025-02-07 23:22:41,171 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-07 23:22:41,342 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.7.prop1-back-serstep.c[1172,1185]
[2025-02-07 23:22:41,865 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 23:22:41,874 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-07 23:22:41,887 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.7.prop1-back-serstep.c[1172,1185]
[2025-02-07 23:22:42,169 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 23:22:42,181 INFO  L204         MainTranslator]: Completed translation
[2025-02-07 23:22:42,182 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42 WrapperNode
[2025-02-07 23:22:42,182 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-07 23:22:42,183 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-07 23:22:42,183 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-07 23:22:42,183 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-07 23:22:42,189 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:42,295 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:43,362 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 11034
[2025-02-07 23:22:43,363 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-07 23:22:43,363 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-07 23:22:43,363 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-07 23:22:43,364 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-07 23:22:43,371 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:43,371 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:43,680 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:44,116 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2025-02-07 23:22:44,117 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:44,117 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:44,541 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:44,579 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:44,637 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:44,688 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:44,859 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-07 23:22:44,860 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-07 23:22:44,860 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-07 23:22:44,860 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-07 23:22:44,861 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (1/1) ...
[2025-02-07 23:22:44,866 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 23:22:44,880 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-07 23:22:44,891 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-02-07 23:22:44,893 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-02-07 23:22:44,912 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-07 23:22:44,913 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-07 23:22:44,913 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-07 23:22:44,913 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-07 23:22:45,521 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-07 23:22:45,523 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-07 23:23:02,349 INFO  L?                        ?]: Removed 6001 outVars from TransFormulas that were not future-live.
[2025-02-07 23:23:02,349 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-07 23:23:02,674 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-07 23:23:02,674 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-07 23:23:02,675 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:23:02 BoogieIcfgContainer
[2025-02-07 23:23:02,675 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-07 23:23:02,677 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-07 23:23:02,678 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-07 23:23:02,682 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-07 23:23:02,683 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:22:41" (1/3) ...
[2025-02-07 23:23:02,684 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ef4c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:23:02, skipping insertion in model container
[2025-02-07 23:23:02,685 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:22:42" (2/3) ...
[2025-02-07 23:23:02,685 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ef4c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:23:02, skipping insertion in model container
[2025-02-07 23:23:02,685 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:23:02" (3/3) ...
[2025-02-07 23:23:02,686 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lann.7.prop1-back-serstep.c
[2025-02-07 23:23:02,704 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-07 23:23:02,706 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.lann.7.prop1-back-serstep.c that has 1 procedures, 3860 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-07 23:23:02,855 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-07 23:23:02,869 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;@39265102, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-07 23:23:02,869 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-07 23:23:02,889 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3860 states, 3858 states have (on average 1.5) internal successors, (5787), 3859 states have internal predecessors, (5787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:02,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 341
[2025-02-07 23:23:02,919 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:02,920 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]
[2025-02-07 23:23:02,921 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:02,926 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:02,927 INFO  L85        PathProgramCache]: Analyzing trace with hash -723846747, now seen corresponding path program 1 times
[2025-02-07 23:23:02,934 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:02,936 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493436209]
[2025-02-07 23:23:02,937 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:02,938 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:03,116 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 340 statements into 1 equivalence classes.
[2025-02-07 23:23:03,497 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 340 of 340 statements.
[2025-02-07 23:23:03,498 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:03,498 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:04,873 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 23:23:04,874 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:04,874 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493436209]
[2025-02-07 23:23:04,876 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493436209] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:04,876 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:04,877 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:23:04,879 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828087699]
[2025-02-07 23:23:04,879 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:04,884 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:23:04,886 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:04,908 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:23:04,909 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:04,919 INFO  L87              Difference]: Start difference. First operand  has 3860 states, 3858 states have (on average 1.5) internal successors, (5787), 3859 states have internal predecessors, (5787), 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 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:07,113 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:07,114 INFO  L93              Difference]: Finished difference Result 7551 states and 11323 transitions.
[2025-02-07 23:23:07,115 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:07,116 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 340
[2025-02-07 23:23:07,118 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:07,157 INFO  L225             Difference]: With dead ends: 7551
[2025-02-07 23:23:07,158 INFO  L226             Difference]: Without dead ends: 3860
[2025-02-07 23:23:07,171 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:07,175 INFO  L435           NwaCegarLoop]: 4819 mSDtfsCounter, 0 mSDsluCounter, 9633 mSDsCounter, 0 mSdLazyCounter, 2899 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14452 SdHoareTripleChecker+Invalid, 2899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:07,176 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14452 Invalid, 2899 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2899 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2025-02-07 23:23:07,197 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3860 states.
[2025-02-07 23:23:07,332 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 3860.
[2025-02-07 23:23:07,341 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3860 states, 3859 states have (on average 1.4993521637729983) internal successors, (5786), 3859 states have internal predecessors, (5786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:07,359 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 5786 transitions.
[2025-02-07 23:23:07,361 INFO  L78                 Accepts]: Start accepts. Automaton has 3860 states and 5786 transitions. Word has length 340
[2025-02-07 23:23:07,362 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:07,362 INFO  L471      AbstractCegarLoop]: Abstraction has 3860 states and 5786 transitions.
[2025-02-07 23:23:07,362 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:07,363 INFO  L276                IsEmpty]: Start isEmpty. Operand 3860 states and 5786 transitions.
[2025-02-07 23:23:07,367 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 342
[2025-02-07 23:23:07,367 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:07,367 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]
[2025-02-07 23:23:07,368 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-07 23:23:07,368 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:07,369 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:07,369 INFO  L85        PathProgramCache]: Analyzing trace with hash -959727969, now seen corresponding path program 1 times
[2025-02-07 23:23:07,369 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:07,369 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59459512]
[2025-02-07 23:23:07,369 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:07,370 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:07,452 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 341 statements into 1 equivalence classes.
[2025-02-07 23:23:07,565 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 341 of 341 statements.
[2025-02-07 23:23:07,566 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:07,566 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:08,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 23:23:08,150 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:08,150 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59459512]
[2025-02-07 23:23:08,150 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59459512] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:08,150 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:08,150 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:23:08,150 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557885301]
[2025-02-07 23:23:08,151 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:08,152 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:23:08,153 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:08,153 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:23:08,154 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:08,155 INFO  L87              Difference]: Start difference. First operand 3860 states and 5786 transitions. Second operand  has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:09,951 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:09,952 INFO  L93              Difference]: Finished difference Result 7553 states and 11322 transitions.
[2025-02-07 23:23:09,952 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:09,953 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 341
[2025-02-07 23:23:09,954 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:09,971 INFO  L225             Difference]: With dead ends: 7553
[2025-02-07 23:23:09,971 INFO  L226             Difference]: Without dead ends: 3862
[2025-02-07 23:23:09,977 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:09,978 INFO  L435           NwaCegarLoop]: 4819 mSDtfsCounter, 0 mSDsluCounter, 9630 mSDsCounter, 0 mSdLazyCounter, 2902 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14449 SdHoareTripleChecker+Invalid, 2902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:09,979 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14449 Invalid, 2902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2902 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2025-02-07 23:23:09,988 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3862 states.
[2025-02-07 23:23:10,057 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3862 to 3862.
[2025-02-07 23:23:10,065 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3862 states, 3861 states have (on average 1.4990934990934992) internal successors, (5788), 3861 states have internal predecessors, (5788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:10,078 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5788 transitions.
[2025-02-07 23:23:10,079 INFO  L78                 Accepts]: Start accepts. Automaton has 3862 states and 5788 transitions. Word has length 341
[2025-02-07 23:23:10,080 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:10,080 INFO  L471      AbstractCegarLoop]: Abstraction has 3862 states and 5788 transitions.
[2025-02-07 23:23:10,081 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:10,081 INFO  L276                IsEmpty]: Start isEmpty. Operand 3862 states and 5788 transitions.
[2025-02-07 23:23:10,085 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2025-02-07 23:23:10,085 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:10,085 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]
[2025-02-07 23:23:10,086 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-07 23:23:10,086 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:10,086 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:10,086 INFO  L85        PathProgramCache]: Analyzing trace with hash -2050248480, now seen corresponding path program 1 times
[2025-02-07 23:23:10,087 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:10,087 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274793592]
[2025-02-07 23:23:10,087 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:10,088 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:10,158 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 342 statements into 1 equivalence classes.
[2025-02-07 23:23:10,223 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 342 of 342 statements.
[2025-02-07 23:23:10,223 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:10,223 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:11,283 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 23:23:11,284 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:11,284 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274793592]
[2025-02-07 23:23:11,284 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274793592] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:11,285 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:11,285 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:23:11,285 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249210846]
[2025-02-07 23:23:11,285 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:11,285 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-02-07 23:23:11,286 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:11,287 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-02-07 23:23:11,287 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-02-07 23:23:11,287 INFO  L87              Difference]: Start difference. First operand 3862 states and 5788 transitions. Second operand  has 6 states, 6 states have (on average 57.0) internal successors, (342), 5 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:14,450 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:14,450 INFO  L93              Difference]: Finished difference Result 11226 states and 16827 transitions.
[2025-02-07 23:23:14,451 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-02-07 23:23:14,452 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 57.0) internal successors, (342), 5 states have internal predecessors, (342), 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 342
[2025-02-07 23:23:14,452 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:14,480 INFO  L225             Difference]: With dead ends: 11226
[2025-02-07 23:23:14,480 INFO  L226             Difference]: Without dead ends: 7533
[2025-02-07 23:23:14,486 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2025-02-07 23:23:14,488 INFO  L435           NwaCegarLoop]: 4815 mSDtfsCounter, 10666 mSDsluCounter, 14300 mSDsCounter, 0 mSdLazyCounter, 3852 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10666 SdHoareTripleChecker+Valid, 19115 SdHoareTripleChecker+Invalid, 3852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:14,488 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10666 Valid, 19115 Invalid, 3852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3852 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2025-02-07 23:23:14,501 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7533 states.
[2025-02-07 23:23:14,587 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7533 to 4360.
[2025-02-07 23:23:14,595 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4360 states, 4359 states have (on average 1.4989676531314522) internal successors, (6534), 4359 states have internal predecessors, (6534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:14,607 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4360 states to 4360 states and 6534 transitions.
[2025-02-07 23:23:14,607 INFO  L78                 Accepts]: Start accepts. Automaton has 4360 states and 6534 transitions. Word has length 342
[2025-02-07 23:23:14,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:14,608 INFO  L471      AbstractCegarLoop]: Abstraction has 4360 states and 6534 transitions.
[2025-02-07 23:23:14,608 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 57.0) internal successors, (342), 5 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:14,608 INFO  L276                IsEmpty]: Start isEmpty. Operand 4360 states and 6534 transitions.
[2025-02-07 23:23:14,714 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2188
[2025-02-07 23:23:14,714 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:14,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:14,717 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-07 23:23:14,717 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:14,718 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:14,719 INFO  L85        PathProgramCache]: Analyzing trace with hash -1823792886, now seen corresponding path program 1 times
[2025-02-07 23:23:14,719 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:14,719 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134688622]
[2025-02-07 23:23:14,719 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:14,719 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:15,037 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2187 statements into 1 equivalence classes.
[2025-02-07 23:23:17,601 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2187 of 2187 statements.
[2025-02-07 23:23:17,601 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:17,602 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:24,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 254 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked.
[2025-02-07 23:23:24,235 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:24,235 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134688622]
[2025-02-07 23:23:24,235 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134688622] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:24,236 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:24,236 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-07 23:23:24,236 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584877424]
[2025-02-07 23:23:24,236 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:24,239 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 23:23:24,239 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:24,241 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 23:23:24,241 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-07 23:23:24,242 INFO  L87              Difference]: Start difference. First operand 4360 states and 6534 transitions. Second operand  has 5 states, 5 states have (on average 388.0) internal successors, (1940), 5 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:25,833 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:25,834 INFO  L93              Difference]: Finished difference Result 8057 states and 12074 transitions.
[2025-02-07 23:23:25,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:25,836 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 388.0) internal successors, (1940), 5 states have internal predecessors, (1940), 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 2187
[2025-02-07 23:23:25,840 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:25,857 INFO  L225             Difference]: With dead ends: 8057
[2025-02-07 23:23:25,858 INFO  L226             Difference]: Without dead ends: 4364
[2025-02-07 23:23:25,863 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
[2025-02-07 23:23:25,865 INFO  L435           NwaCegarLoop]: 4819 mSDtfsCounter, 0 mSDsluCounter, 9630 mSDsCounter, 0 mSdLazyCounter, 2903 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14449 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:25,865 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14449 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2903 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-02-07 23:23:25,875 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4364 states.
[2025-02-07 23:23:25,942 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 4360.
[2025-02-07 23:23:25,953 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4360 states, 4359 states have (on average 1.4989676531314522) internal successors, (6534), 4359 states have internal predecessors, (6534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:25,966 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4360 states to 4360 states and 6534 transitions.
[2025-02-07 23:23:25,967 INFO  L78                 Accepts]: Start accepts. Automaton has 4360 states and 6534 transitions. Word has length 2187
[2025-02-07 23:23:25,970 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:25,970 INFO  L471      AbstractCegarLoop]: Abstraction has 4360 states and 6534 transitions.
[2025-02-07 23:23:25,972 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 388.0) internal successors, (1940), 5 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:25,972 INFO  L276                IsEmpty]: Start isEmpty. Operand 4360 states and 6534 transitions.
[2025-02-07 23:23:26,085 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2189
[2025-02-07 23:23:26,085 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:26,087 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 23:23:26,088 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-07 23:23:26,088 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:26,089 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:26,090 INFO  L85        PathProgramCache]: Analyzing trace with hash 1185363450, now seen corresponding path program 1 times
[2025-02-07 23:23:26,090 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:26,090 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120209432]
[2025-02-07 23:23:26,090 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:26,090 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:26,494 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2188 statements into 1 equivalence classes.
[2025-02-07 23:23:28,526 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2188 of 2188 statements.
[2025-02-07 23:23:28,527 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:28,527 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:31,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 254 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2025-02-07 23:23:31,745 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:31,745 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120209432]
[2025-02-07 23:23:31,745 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120209432] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:31,745 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:31,746 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:23:31,746 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543475831]
[2025-02-07 23:23:31,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:31,748 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:23:31,748 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:31,750 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:23:31,750 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:31,754 INFO  L87              Difference]: Start difference. First operand 4360 states and 6534 transitions. Second operand  has 4 states, 4 states have (on average 485.75) internal successors, (1943), 4 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:33,017 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:33,017 INFO  L93              Difference]: Finished difference Result 8061 states and 12080 transitions.
[2025-02-07 23:23:33,017 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:33,019 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 485.75) internal successors, (1943), 4 states have internal predecessors, (1943), 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 2188
[2025-02-07 23:23:33,022 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:33,035 INFO  L225             Difference]: With dead ends: 8061
[2025-02-07 23:23:33,036 INFO  L226             Difference]: Without dead ends: 4364
[2025-02-07 23:23:33,041 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:33,042 INFO  L435           NwaCegarLoop]: 4819 mSDtfsCounter, 0 mSDsluCounter, 9630 mSDsCounter, 0 mSdLazyCounter, 2902 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14449 SdHoareTripleChecker+Invalid, 2902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:33,043 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14449 Invalid, 2902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2902 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-02-07 23:23:33,076 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4364 states.
[2025-02-07 23:23:33,122 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 4362.
[2025-02-07 23:23:33,128 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4362 states, 4361 states have (on average 1.4987388213712451) internal successors, (6536), 4361 states have internal predecessors, (6536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:33,141 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 6536 transitions.
[2025-02-07 23:23:33,143 INFO  L78                 Accepts]: Start accepts. Automaton has 4362 states and 6536 transitions. Word has length 2188
[2025-02-07 23:23:33,146 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:33,147 INFO  L471      AbstractCegarLoop]: Abstraction has 4362 states and 6536 transitions.
[2025-02-07 23:23:33,147 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 485.75) internal successors, (1943), 4 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:33,148 INFO  L276                IsEmpty]: Start isEmpty. Operand 4362 states and 6536 transitions.
[2025-02-07 23:23:33,178 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2190
[2025-02-07 23:23:33,179 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:33,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-02-07 23:23:33,180 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-02-07 23:23:33,180 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:33,181 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:33,182 INFO  L85        PathProgramCache]: Analyzing trace with hash -1208635707, now seen corresponding path program 1 times
[2025-02-07 23:23:33,182 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:33,182 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400565998]
[2025-02-07 23:23:33,183 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:33,183 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:33,455 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2189 statements into 1 equivalence classes.
[2025-02-07 23:23:34,834 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2189 of 2189 statements.
[2025-02-07 23:23:34,834 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:34,834 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 23:23:38,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 254 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked.
[2025-02-07 23:23:38,202 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 23:23:38,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400565998]
[2025-02-07 23:23:38,202 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400565998] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 23:23:38,202 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 23:23:38,203 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 23:23:38,203 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205059195]
[2025-02-07 23:23:38,203 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 23:23:38,205 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 23:23:38,205 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 23:23:38,206 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 23:23:38,207 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:38,207 INFO  L87              Difference]: Start difference. First operand 4362 states and 6536 transitions. Second operand  has 4 states, 4 states have (on average 486.5) internal successors, (1946), 4 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:39,459 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 23:23:39,459 INFO  L93              Difference]: Finished difference Result 8069 states and 12090 transitions.
[2025-02-07 23:23:39,459 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 23:23:39,460 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 486.5) internal successors, (1946), 4 states have internal predecessors, (1946), 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 2189
[2025-02-07 23:23:39,462 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 23:23:39,474 INFO  L225             Difference]: With dead ends: 8069
[2025-02-07 23:23:39,474 INFO  L226             Difference]: Without dead ends: 4366
[2025-02-07 23:23:39,479 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 23:23:39,480 INFO  L435           NwaCegarLoop]: 4819 mSDtfsCounter, 0 mSDsluCounter, 9630 mSDsCounter, 0 mSdLazyCounter, 2902 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14449 SdHoareTripleChecker+Invalid, 2902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-02-07 23:23:39,480 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14449 Invalid, 2902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2902 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-02-07 23:23:39,485 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4366 states.
[2025-02-07 23:23:39,534 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 4364.
[2025-02-07 23:23:39,540 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4364 states, 4363 states have (on average 1.4985101994040797) internal successors, (6538), 4363 states have internal predecessors, (6538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:39,544 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4364 states to 4364 states and 6538 transitions.
[2025-02-07 23:23:39,545 INFO  L78                 Accepts]: Start accepts. Automaton has 4364 states and 6538 transitions. Word has length 2189
[2025-02-07 23:23:39,547 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 23:23:39,547 INFO  L471      AbstractCegarLoop]: Abstraction has 4364 states and 6538 transitions.
[2025-02-07 23:23:39,547 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 486.5) internal successors, (1946), 4 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-07 23:23:39,547 INFO  L276                IsEmpty]: Start isEmpty. Operand 4364 states and 6538 transitions.
[2025-02-07 23:23:39,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2191
[2025-02-07 23:23:39,578 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 23:23:39,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-02-07 23:23:39,580 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-02-07 23:23:39,580 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 23:23:39,581 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 23:23:39,581 INFO  L85        PathProgramCache]: Analyzing trace with hash 1055457727, now seen corresponding path program 1 times
[2025-02-07 23:23:39,582 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 23:23:39,582 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95729581]
[2025-02-07 23:23:39,582 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 23:23:39,582 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 23:23:39,867 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2190 statements into 1 equivalence classes.
[2025-02-07 23:23:42,550 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2190 of 2190 statements.
[2025-02-07 23:23:42,550 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 23:23:42,550 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat