./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop2-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version a046e57d
Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop2-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 594ba7f2cd795469cb4364f0ae6b5499d8c7bf93ae5cdd1c268db95fc5a86c8c
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m
[2024-10-12 22:35:56,975 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-12 22:35:57,038 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-10-12 22:35:57,042 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-12 22:35:57,044 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-12 22:35:57,066 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-12 22:35:57,067 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-12 22:35:57,067 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-12 22:35:57,067 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-12 22:35:57,068 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-12 22:35:57,068 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-12 22:35:57,069 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-12 22:35:57,069 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-12 22:35:57,069 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-12 22:35:57,070 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-12 22:35:57,071 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-12 22:35:57,071 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-12 22:35:57,071 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-12 22:35:57,071 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-12 22:35:57,072 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-12 22:35:57,072 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-12 22:35:57,075 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-12 22:35:57,075 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-12 22:35:57,075 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-12 22:35:57,075 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-12 22:35:57,075 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-12 22:35:57,075 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-12 22:35:57,075 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-12 22:35:57,076 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-12 22:35:57,076 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-12 22:35:57,076 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-12 22:35:57,076 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-12 22:35:57,076 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-12 22:35:57,076 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-12 22:35:57,076 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-12 22:35:57,077 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-12 22:35:57,077 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-12 22:35:57,077 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-12 22:35:57,077 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-12 22:35:57,077 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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 -> 594ba7f2cd795469cb4364f0ae6b5499d8c7bf93ae5cdd1c268db95fc5a86c8c
[2024-10-12 22:35:57,252 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-12 22:35:57,267 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-12 22:35:57,269 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-12 22:35:57,270 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-12 22:35:57,271 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-12 22:35:57,271 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop2-func-interl.c
[2024-10-12 22:35:58,510 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-12 22:35:58,860 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-12 22:35:58,861 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop2-func-interl.c
[2024-10-12 22:35:58,896 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7cef887/cd545ac11c334507ba78b39be9532375/FLAG1cf3265c7
[2024-10-12 22:35:59,133 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7cef887/cd545ac11c334507ba78b39be9532375
[2024-10-12 22:35:59,151 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-12 22:35:59,152 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-12 22:35:59,162 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-12 22:35:59,162 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-12 22:35:59,166 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-12 22:35:59,167 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:35:59" (1/1) ...
[2024-10-12 22:35:59,168 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9ffc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:59, skipping insertion in model container
[2024-10-12 22:35:59,168 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:35:59" (1/1) ...
[2024-10-12 22:35:59,271 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-12 22:35:59,434 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop2-func-interl.c[1176,1189]
[2024-10-12 22:36:00,082 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-12 22:36:00,090 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-12 22:36:00,101 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop2-func-interl.c[1176,1189]
[2024-10-12 22:36:00,531 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-12 22:36:00,545 INFO  L204         MainTranslator]: Completed translation
[2024-10-12 22:36:00,545 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00 WrapperNode
[2024-10-12 22:36:00,545 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-12 22:36:00,546 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-12 22:36:00,546 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-12 22:36:00,546 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-12 22:36:00,551 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:00,708 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:03,143 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23543
[2024-10-12 22:36:03,143 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-12 22:36:03,144 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-12 22:36:03,144 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-12 22:36:03,144 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-12 22:36:03,152 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:03,153 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:03,720 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:04,001 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].
[2024-10-12 22:36:04,001 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:04,001 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:04,487 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:04,575 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:04,680 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:04,765 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:05,309 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-12 22:36:05,316 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-12 22:36:05,316 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-12 22:36:05,316 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-12 22:36:05,317 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (1/1) ...
[2024-10-12 22:36:05,322 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-12 22:36:05,329 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-12 22:36:05,349 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)
[2024-10-12 22:36:05,353 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
[2024-10-12 22:36:05,401 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-12 22:36:05,401 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-12 22:36:05,401 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-12 22:36:05,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-12 22:36:06,484 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-12 22:36:06,486 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-12 22:36:46,694 INFO  L?                        ?]: Removed 14093 outVars from TransFormulas that were not future-live.
[2024-10-12 22:36:46,694 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-12 22:36:47,002 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-12 22:36:47,003 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-12 22:36:47,003 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:36:47 BoogieIcfgContainer
[2024-10-12 22:36:47,003 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-12 22:36:47,005 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-12 22:36:47,005 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-12 22:36:47,007 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-12 22:36:47,007 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:35:59" (1/3) ...
[2024-10-12 22:36:47,008 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fa1d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:36:47, skipping insertion in model container
[2024-10-12 22:36:47,008 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:00" (2/3) ...
[2024-10-12 22:36:47,008 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fa1d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:36:47, skipping insertion in model container
[2024-10-12 22:36:47,008 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:36:47" (3/3) ...
[2024-10-12 22:36:47,009 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.7.prop2-func-interl.c
[2024-10-12 22:36:47,021 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-12 22:36:47,021 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-12 22:36:47,155 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-12 22:36:47,160 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;@5cb088f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-12 22:36:47,160 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-12 22:36:47,179 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7403 states, 7401 states have (on average 1.5014187271990271) internal successors, (11112), 7402 states have internal predecessors, (11112), 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)
[2024-10-12 22:36:47,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2024-10-12 22:36:47,202 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:47,203 INFO  L215           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]
[2024-10-12 22:36:47,203 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:47,207 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:47,208 INFO  L85        PathProgramCache]: Analyzing trace with hash 1732635853, now seen corresponding path program 1 times
[2024-10-12 22:36:47,214 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:47,215 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910475272]
[2024-10-12 22:36:47,215 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:47,216 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:47,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:48,206 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:48,207 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:48,207 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910475272]
[2024-10-12 22:36:48,207 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910475272] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:48,208 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:48,208 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:36:48,209 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255243684]
[2024-10-12 22:36:48,209 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:48,213 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:36:48,213 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:48,235 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:36:48,236 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:36:48,251 INFO  L87              Difference]: Start difference. First operand  has 7403 states, 7401 states have (on average 1.5014187271990271) internal successors, (11112), 7402 states have internal predecessors, (11112), 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 63.5) internal successors, (254), 4 states have internal predecessors, (254), 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)
[2024-10-12 22:36:48,508 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:36:48,509 INFO  L93              Difference]: Finished difference Result 14510 states and 21782 transitions.
[2024-10-12 22:36:48,510 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:36:48,511 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 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 254
[2024-10-12 22:36:48,513 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:36:48,551 INFO  L225             Difference]: With dead ends: 14510
[2024-10-12 22:36:48,551 INFO  L226             Difference]: Without dead ends: 7404
[2024-10-12 22:36:48,566 INFO  L431           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
[2024-10-12 22:36:48,571 INFO  L432           NwaCegarLoop]: 11107 mSDtfsCounter, 0 mSDsluCounter, 22209 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33316 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:36:48,572 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33316 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:36:48,595 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7404 states.
[2024-10-12 22:36:48,710 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7404 to 7404.
[2024-10-12 22:36:48,723 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7404 states, 7403 states have (on average 1.5010131027961637) internal successors, (11112), 7403 states have internal predecessors, (11112), 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)
[2024-10-12 22:36:48,738 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7404 states to 7404 states and 11112 transitions.
[2024-10-12 22:36:48,739 INFO  L78                 Accepts]: Start accepts. Automaton has 7404 states and 11112 transitions. Word has length 254
[2024-10-12 22:36:48,741 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:36:48,742 INFO  L471      AbstractCegarLoop]: Abstraction has 7404 states and 11112 transitions.
[2024-10-12 22:36:48,742 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 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)
[2024-10-12 22:36:48,743 INFO  L276                IsEmpty]: Start isEmpty. Operand 7404 states and 11112 transitions.
[2024-10-12 22:36:48,748 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 256
[2024-10-12 22:36:48,749 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:48,749 INFO  L215           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]
[2024-10-12 22:36:48,749 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-12 22:36:48,749 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:48,749 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:48,750 INFO  L85        PathProgramCache]: Analyzing trace with hash -2121166627, now seen corresponding path program 1 times
[2024-10-12 22:36:48,750 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:48,750 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483772879]
[2024-10-12 22:36:48,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:48,750 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:48,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:49,212 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:49,212 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:49,213 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483772879]
[2024-10-12 22:36:49,213 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483772879] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:49,213 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:49,213 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:36:49,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253379423]
[2024-10-12 22:36:49,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:49,216 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:36:49,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:49,217 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:36:49,217 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:36:49,218 INFO  L87              Difference]: Start difference. First operand 7404 states and 11112 transitions. Second operand  has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 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)
[2024-10-12 22:36:49,457 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:36:49,458 INFO  L93              Difference]: Finished difference Result 14513 states and 21782 transitions.
[2024-10-12 22:36:49,459 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:36:49,459 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 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 255
[2024-10-12 22:36:49,460 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:36:49,485 INFO  L225             Difference]: With dead ends: 14513
[2024-10-12 22:36:49,485 INFO  L226             Difference]: Without dead ends: 7406
[2024-10-12 22:36:49,498 INFO  L431           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
[2024-10-12 22:36:49,499 INFO  L432           NwaCegarLoop]: 11107 mSDtfsCounter, 0 mSDsluCounter, 22206 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33313 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:36:49,500 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33313 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:36:49,512 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7406 states.
[2024-10-12 22:36:49,616 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7406 to 7406.
[2024-10-12 22:36:49,627 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7406 states, 7405 states have (on average 1.500877785280216) internal successors, (11114), 7405 states have internal predecessors, (11114), 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)
[2024-10-12 22:36:49,642 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 11114 transitions.
[2024-10-12 22:36:49,643 INFO  L78                 Accepts]: Start accepts. Automaton has 7406 states and 11114 transitions. Word has length 255
[2024-10-12 22:36:49,643 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:36:49,643 INFO  L471      AbstractCegarLoop]: Abstraction has 7406 states and 11114 transitions.
[2024-10-12 22:36:49,644 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 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)
[2024-10-12 22:36:49,644 INFO  L276                IsEmpty]: Start isEmpty. Operand 7406 states and 11114 transitions.
[2024-10-12 22:36:49,646 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 257
[2024-10-12 22:36:49,646 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:49,646 INFO  L215           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]
[2024-10-12 22:36:49,646 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-12 22:36:49,646 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:49,647 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:49,647 INFO  L85        PathProgramCache]: Analyzing trace with hash 1865346982, now seen corresponding path program 1 times
[2024-10-12 22:36:49,647 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:49,647 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967647081]
[2024-10-12 22:36:49,647 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:49,647 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:49,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:50,232 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:50,233 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:50,233 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967647081]
[2024-10-12 22:36:50,233 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967647081] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:50,233 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:50,233 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:36:50,233 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6234750]
[2024-10-12 22:36:50,233 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:50,234 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:36:50,234 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:50,234 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:36:50,234 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:36:50,235 INFO  L87              Difference]: Start difference. First operand 7406 states and 11114 transitions. Second operand  has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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)
[2024-10-12 22:36:50,404 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:36:50,405 INFO  L93              Difference]: Finished difference Result 14517 states and 21786 transitions.
[2024-10-12 22:36:50,406 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:36:50,406 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 256
[2024-10-12 22:36:50,407 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:36:50,425 INFO  L225             Difference]: With dead ends: 14517
[2024-10-12 22:36:50,425 INFO  L226             Difference]: Without dead ends: 7408
[2024-10-12 22:36:50,434 INFO  L431           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
[2024-10-12 22:36:50,435 INFO  L432           NwaCegarLoop]: 11107 mSDtfsCounter, 0 mSDsluCounter, 22200 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33307 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:36:50,437 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33307 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:36:50,446 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7408 states.
[2024-10-12 22:36:50,528 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7408 to 7408.
[2024-10-12 22:36:50,542 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7408 states, 7407 states have (on average 1.5007425408397461) internal successors, (11116), 7407 states have internal predecessors, (11116), 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)
[2024-10-12 22:36:50,558 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7408 states to 7408 states and 11116 transitions.
[2024-10-12 22:36:50,559 INFO  L78                 Accepts]: Start accepts. Automaton has 7408 states and 11116 transitions. Word has length 256
[2024-10-12 22:36:50,560 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:36:50,560 INFO  L471      AbstractCegarLoop]: Abstraction has 7408 states and 11116 transitions.
[2024-10-12 22:36:50,561 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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)
[2024-10-12 22:36:50,561 INFO  L276                IsEmpty]: Start isEmpty. Operand 7408 states and 11116 transitions.
[2024-10-12 22:36:50,563 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2024-10-12 22:36:50,563 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:50,563 INFO  L215           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]
[2024-10-12 22:36:50,563 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-12 22:36:50,564 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:50,564 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:50,565 INFO  L85        PathProgramCache]: Analyzing trace with hash -1394897276, now seen corresponding path program 1 times
[2024-10-12 22:36:50,565 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:50,565 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307685100]
[2024-10-12 22:36:50,565 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:50,565 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:50,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:50,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:50,969 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:50,969 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307685100]
[2024-10-12 22:36:50,970 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307685100] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:50,970 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:50,970 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:36:50,970 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105418072]
[2024-10-12 22:36:50,970 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:50,970 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-12 22:36:50,971 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:50,971 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-12 22:36:50,971 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:36:50,971 INFO  L87              Difference]: Start difference. First operand 7408 states and 11116 transitions. Second operand  has 5 states, 5 states have (on average 51.4) internal successors, (257), 4 states have internal predecessors, (257), 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)
[2024-10-12 22:36:51,260 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:36:51,260 INFO  L93              Difference]: Finished difference Result 21292 states and 31953 transitions.
[2024-10-12 22:36:51,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-12 22:36:51,261 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 51.4) internal successors, (257), 4 states have internal predecessors, (257), 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 257
[2024-10-12 22:36:51,261 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:36:51,288 INFO  L225             Difference]: With dead ends: 21292
[2024-10-12 22:36:51,289 INFO  L226             Difference]: Without dead ends: 14181
[2024-10-12 22:36:51,300 INFO  L431           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
[2024-10-12 22:36:51,301 INFO  L432           NwaCegarLoop]: 11103 mSDtfsCounter, 10365 mSDsluCounter, 32861 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10365 SdHoareTripleChecker+Valid, 43964 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:36:51,301 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [10365 Valid, 43964 Invalid, 31 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:36:51,319 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14181 states.
[2024-10-12 22:36:51,436 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14181 to 7604.
[2024-10-12 22:36:51,445 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7604 states, 7603 states have (on average 1.5007233986584243) internal successors, (11410), 7603 states have internal predecessors, (11410), 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)
[2024-10-12 22:36:51,455 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7604 states to 7604 states and 11410 transitions.
[2024-10-12 22:36:51,455 INFO  L78                 Accepts]: Start accepts. Automaton has 7604 states and 11410 transitions. Word has length 257
[2024-10-12 22:36:51,456 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:36:51,456 INFO  L471      AbstractCegarLoop]: Abstraction has 7604 states and 11410 transitions.
[2024-10-12 22:36:51,456 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 51.4) internal successors, (257), 4 states have internal predecessors, (257), 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)
[2024-10-12 22:36:51,456 INFO  L276                IsEmpty]: Start isEmpty. Operand 7604 states and 11410 transitions.
[2024-10-12 22:36:51,602 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3775
[2024-10-12 22:36:51,602 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:51,604 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-10-12 22:36:51,604 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-12 22:36:51,604 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:51,605 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:51,606 INFO  L85        PathProgramCache]: Analyzing trace with hash 1355840446, now seen corresponding path program 1 times
[2024-10-12 22:36:51,606 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:51,606 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722243252]
[2024-10-12 22:36:51,607 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:51,607 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:59,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:37:07,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:37:07,672 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:37:07,672 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722243252]
[2024-10-12 22:37:07,672 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722243252] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:37:07,672 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:37:07,673 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:37:07,673 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546665358]
[2024-10-12 22:37:07,673 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:37:07,677 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:37:07,680 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:37:07,687 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:37:07,689 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:37:07,690 INFO  L87              Difference]: Start difference. First operand 7604 states and 11410 transitions. Second operand  has 4 states, 4 states have (on average 943.5) internal successors, (3774), 3 states have internal predecessors, (3774), 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)
[2024-10-12 22:37:07,857 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:37:07,858 INFO  L93              Difference]: Finished difference Result 14715 states and 22081 transitions.
[2024-10-12 22:37:07,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:37:07,860 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 943.5) internal successors, (3774), 3 states have internal predecessors, (3774), 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 3774
[2024-10-12 22:37:07,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:37:07,872 INFO  L225             Difference]: With dead ends: 14715
[2024-10-12 22:37:07,872 INFO  L226             Difference]: Without dead ends: 7604
[2024-10-12 22:37:07,880 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:37:07,882 INFO  L432           NwaCegarLoop]: 11101 mSDtfsCounter, 10859 mSDsluCounter, 11099 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10859 SdHoareTripleChecker+Valid, 22200 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 22:37:07,882 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [10859 Valid, 22200 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 22:37:07,890 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7604 states.
[2024-10-12 22:37:07,955 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7604 to 7604.
[2024-10-12 22:37:07,962 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7604 states, 7603 states have (on average 1.5005918716296198) internal successors, (11409), 7603 states have internal predecessors, (11409), 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)
[2024-10-12 22:37:07,972 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7604 states to 7604 states and 11409 transitions.
[2024-10-12 22:37:07,972 INFO  L78                 Accepts]: Start accepts. Automaton has 7604 states and 11409 transitions. Word has length 3774
[2024-10-12 22:37:07,973 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:37:07,973 INFO  L471      AbstractCegarLoop]: Abstraction has 7604 states and 11409 transitions.
[2024-10-12 22:37:07,974 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 943.5) internal successors, (3774), 3 states have internal predecessors, (3774), 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)
[2024-10-12 22:37:07,974 INFO  L276                IsEmpty]: Start isEmpty. Operand 7604 states and 11409 transitions.
[2024-10-12 22:37:08,169 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3776
[2024-10-12 22:37:08,169 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:37:08,170 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-10-12 22:37:08,171 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-12 22:37:08,172 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:37:08,172 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:37:08,174 INFO  L85        PathProgramCache]: Analyzing trace with hash 1845327949, now seen corresponding path program 1 times
[2024-10-12 22:37:08,174 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:37:08,174 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448143152]
[2024-10-12 22:37:08,175 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:37:08,175 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:37:16,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat