./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem19_label17.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/eca-rers2012/Problem19_label17.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 6848db2ddd2556f2093bbcb0368e7a4f47fdd5c1a9995f9fb65bc5fd459ece0d
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 11:01:24,957 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 11:01:25,000 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 11:01:25,005 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 11:01:25,006 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 11:01:25,023 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 11:01:25,023 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 11:01:25,024 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 11:01:25,024 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 11:01:25,024 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 11:01:25,025 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 11:01:25,025 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 11:01:25,025 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 11:01:25,026 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 11:01:25,026 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 11:01:25,026 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 11:01:25,027 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 11:01:25,027 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 11:01:25,027 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 11:01:25,027 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 11:01:25,028 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 11:01:25,028 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 11:01:25,028 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 11:01:25,028 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 11:01:25,029 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 11:01:25,029 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 11:01:25,029 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 11:01:25,029 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 11:01:25,030 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 11:01:25,030 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 11:01:25,030 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 11:01:25,030 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 11:01:25,031 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 11:01:25,031 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 11:01:25,031 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 11:01:25,031 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 11:01:25,031 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 11:01:25,032 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 11:01:25,032 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 11:01:25,032 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 11:01:25,032 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 11:01:25,035 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 11:01:25,035 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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6848db2ddd2556f2093bbcb0368e7a4f47fdd5c1a9995f9fb65bc5fd459ece0d
[2024-11-18 11:01:25,233 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 11:01:25,252 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 11:01:25,254 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 11:01:25,256 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 11:01:25,256 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 11:01:25,257 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem19_label17.c
[2024-11-18 11:01:26,397 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 11:01:26,830 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 11:01:26,831 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label17.c
[2024-11-18 11:01:26,856 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34549fca0/df94122958e5438ea73a63cccb6c3dfa/FLAG67b50c955
[2024-11-18 11:01:26,977 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34549fca0/df94122958e5438ea73a63cccb6c3dfa
[2024-11-18 11:01:26,980 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 11:01:26,981 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 11:01:26,983 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 11:01:26,983 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 11:01:26,987 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 11:01:26,988 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:01:26" (1/1) ...
[2024-11-18 11:01:26,988 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7816a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:26, skipping insertion in model container
[2024-11-18 11:01:26,988 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:01:26" (1/1) ...
[2024-11-18 11:01:27,105 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 11:01:27,313 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label17.c[1799,1812]
[2024-11-18 11:01:28,281 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 11:01:28,289 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 11:01:28,302 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label17.c[1799,1812]
[2024-11-18 11:01:28,843 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 11:01:28,880 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 11:01:28,881 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28 WrapperNode
[2024-11-18 11:01:28,881 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 11:01:28,882 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 11:01:28,882 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 11:01:28,882 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 11:01:28,887 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:28,949 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:29,616 INFO  L138                Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9431
[2024-11-18 11:01:29,617 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 11:01:29,618 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 11:01:29,618 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 11:01:29,618 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 11:01:29,627 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:29,627 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:29,812 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:30,118 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].
[2024-11-18 11:01:30,119 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:30,119 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:30,322 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:30,353 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:30,392 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:30,477 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:30,571 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 11:01:30,572 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 11:01:30,572 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 11:01:30,572 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 11:01:30,573 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (1/1) ...
[2024-11-18 11:01:30,577 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 11:01:30,584 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 11:01:30,596 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)
[2024-11-18 11:01:30,598 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
[2024-11-18 11:01:30,631 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 11:01:30,631 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 11:01:30,631 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 11:01:30,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 11:01:30,690 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 11:01:30,691 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 11:01:36,505 INFO  L?                        ?]: Removed 1320 outVars from TransFormulas that were not future-live.
[2024-11-18 11:01:36,505 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 11:01:36,561 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 11:01:36,561 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 11:01:36,561 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:01:36 BoogieIcfgContainer
[2024-11-18 11:01:36,562 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 11:01:36,564 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 11:01:36,564 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 11:01:36,567 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 11:01:36,568 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:01:26" (1/3) ...
[2024-11-18 11:01:36,569 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7b3bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:01:36, skipping insertion in model container
[2024-11-18 11:01:36,569 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:28" (2/3) ...
[2024-11-18 11:01:36,570 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7b3bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:01:36, skipping insertion in model container
[2024-11-18 11:01:36,570 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:01:36" (3/3) ...
[2024-11-18 11:01:36,572 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem19_label17.c
[2024-11-18 11:01:36,588 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 11:01:36,588 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 11:01:36,676 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 11:01:36,683 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;@336a1cf4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 11:01:36,683 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 11:01:36,692 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 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)
[2024-11-18 11:01:36,697 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-18 11:01:36,697 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:01:36,697 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 11:01:36,698 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:01:36,701 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:01:36,702 INFO  L85        PathProgramCache]: Analyzing trace with hash -1417350502, now seen corresponding path program 1 times
[2024-11-18 11:01:36,708 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:01:36,708 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79083015]
[2024-11-18 11:01:36,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:01:36,710 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:01:36,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:01:36,901 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 11:01:36,905 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:01:36,905 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79083015]
[2024-11-18 11:01:36,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79083015] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:01:36,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 11:01:36,906 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 11:01:36,907 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889844506]
[2024-11-18 11:01:36,908 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:01:36,912 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 11:01:36,912 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:01:36,931 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 11:01:36,932 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:01:36,937 INFO  L87              Difference]: Start difference. First operand  has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 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 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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)
[2024-11-18 11:01:42,372 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:01:42,372 INFO  L93              Difference]: Finished difference Result 4975 states and 9416 transitions.
[2024-11-18 11:01:42,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 11:01:42,374 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 10
[2024-11-18 11:01:42,375 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:01:42,395 INFO  L225             Difference]: With dead ends: 4975
[2024-11-18 11:01:42,395 INFO  L226             Difference]: Without dead ends: 3163
[2024-11-18 11:01:42,401 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:01:42,403 INFO  L432           NwaCegarLoop]: 1353 mSDtfsCounter, 1536 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4670 mSolverCounterSat, 1123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 5793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1123 IncrementalHoareTripleChecker+Valid, 4670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time
[2024-11-18 11:01:42,403 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 1524 Invalid, 5793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1123 Valid, 4670 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time]
[2024-11-18 11:01:42,421 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3163 states.
[2024-11-18 11:01:42,493 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3123.
[2024-11-18 11:01:42,498 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3123 states, 3122 states have (on average 1.6268417680973735) internal successors, (5079), 3122 states have internal predecessors, (5079), 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)
[2024-11-18 11:01:42,505 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 5079 transitions.
[2024-11-18 11:01:42,506 INFO  L78                 Accepts]: Start accepts. Automaton has 3123 states and 5079 transitions. Word has length 10
[2024-11-18 11:01:42,506 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 11:01:42,507 INFO  L471      AbstractCegarLoop]: Abstraction has 3123 states and 5079 transitions.
[2024-11-18 11:01:42,507 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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)
[2024-11-18 11:01:42,507 INFO  L276                IsEmpty]: Start isEmpty. Operand 3123 states and 5079 transitions.
[2024-11-18 11:01:42,508 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-11-18 11:01:42,508 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:01:42,509 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 11:01:42,509 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-18 11:01:42,509 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:01:42,510 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:01:42,510 INFO  L85        PathProgramCache]: Analyzing trace with hash 1344447525, now seen corresponding path program 1 times
[2024-11-18 11:01:42,510 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:01:42,510 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462672926]
[2024-11-18 11:01:42,510 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:01:42,510 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:01:42,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:01:42,702 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 11:01:42,702 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:01:42,703 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462672926]
[2024-11-18 11:01:42,703 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462672926] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:01:42,703 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 11:01:42,703 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 11:01:42,703 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949544341]
[2024-11-18 11:01:42,703 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:01:42,704 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 11:01:42,704 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:01:42,705 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 11:01:42,705 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:01:42,705 INFO  L87              Difference]: Start difference. First operand 3123 states and 5079 transitions. Second operand  has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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)
[2024-11-18 11:01:47,780 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:01:47,781 INFO  L93              Difference]: Finished difference Result 9053 states and 14813 transitions.
[2024-11-18 11:01:47,781 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 11:01:47,781 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81
[2024-11-18 11:01:47,782 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:01:47,799 INFO  L225             Difference]: With dead ends: 9053
[2024-11-18 11:01:47,799 INFO  L226             Difference]: Without dead ends: 5932
[2024-11-18 11:01:47,804 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:01:47,806 INFO  L432           NwaCegarLoop]: 1325 mSDtfsCounter, 1534 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 4265 mSolverCounterSat, 1473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 5738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 4265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2024-11-18 11:01:47,806 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 1544 Invalid, 5738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1473 Valid, 4265 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2024-11-18 11:01:47,812 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5932 states.
[2024-11-18 11:01:47,886 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 5910.
[2024-11-18 11:01:47,895 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5910 states, 5909 states have (on average 1.423421898798443) internal successors, (8411), 5909 states have internal predecessors, (8411), 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)
[2024-11-18 11:01:47,906 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 8411 transitions.
[2024-11-18 11:01:47,906 INFO  L78                 Accepts]: Start accepts. Automaton has 5910 states and 8411 transitions. Word has length 81
[2024-11-18 11:01:47,907 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 11:01:47,907 INFO  L471      AbstractCegarLoop]: Abstraction has 5910 states and 8411 transitions.
[2024-11-18 11:01:47,907 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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)
[2024-11-18 11:01:47,908 INFO  L276                IsEmpty]: Start isEmpty. Operand 5910 states and 8411 transitions.
[2024-11-18 11:01:47,914 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-18 11:01:47,915 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:01:47,915 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 11:01:47,916 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 11:01:47,916 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:01:47,917 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:01:47,920 INFO  L85        PathProgramCache]: Analyzing trace with hash -1713356554, now seen corresponding path program 1 times
[2024-11-18 11:01:47,920 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:01:47,921 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913666]
[2024-11-18 11:01:47,921 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:01:47,921 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:01:47,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:01:48,089 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 11:01:48,090 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:01:48,090 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913666]
[2024-11-18 11:01:48,090 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913666] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:01:48,090 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 11:01:48,090 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 11:01:48,090 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597988100]
[2024-11-18 11:01:48,091 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:01:48,091 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 11:01:48,094 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:01:48,095 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 11:01:48,095 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:01:48,095 INFO  L87              Difference]: Start difference. First operand 5910 states and 8411 transitions. Second operand  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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)
[2024-11-18 11:01:52,730 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:01:52,731 INFO  L93              Difference]: Finished difference Result 17505 states and 24942 transitions.
[2024-11-18 11:01:52,731 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 11:01:52,731 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 107
[2024-11-18 11:01:52,731 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:01:52,760 INFO  L225             Difference]: With dead ends: 17505
[2024-11-18 11:01:52,761 INFO  L226             Difference]: Without dead ends: 11597
[2024-11-18 11:01:52,767 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:01:52,768 INFO  L432           NwaCegarLoop]: 1533 mSDtfsCounter, 1750 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 4227 mSolverCounterSat, 1430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 5657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1430 IncrementalHoareTripleChecker+Valid, 4227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-11-18 11:01:52,769 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 1806 Invalid, 5657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1430 Valid, 4227 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2024-11-18 11:01:52,777 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11597 states.
[2024-11-18 11:01:52,877 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11597 to 11578.
[2024-11-18 11:01:52,891 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11578 states, 11577 states have (on average 1.2801243845555843) internal successors, (14820), 11577 states have internal predecessors, (14820), 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)
[2024-11-18 11:01:52,906 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 14820 transitions.
[2024-11-18 11:01:52,907 INFO  L78                 Accepts]: Start accepts. Automaton has 11578 states and 14820 transitions. Word has length 107
[2024-11-18 11:01:52,907 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 11:01:52,907 INFO  L471      AbstractCegarLoop]: Abstraction has 11578 states and 14820 transitions.
[2024-11-18 11:01:52,908 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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)
[2024-11-18 11:01:52,908 INFO  L276                IsEmpty]: Start isEmpty. Operand 11578 states and 14820 transitions.
[2024-11-18 11:01:52,909 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 116
[2024-11-18 11:01:52,909 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:01:52,909 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 11:01:52,910 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 11:01:52,911 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:01:52,911 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:01:52,911 INFO  L85        PathProgramCache]: Analyzing trace with hash 1969873634, now seen corresponding path program 1 times
[2024-11-18 11:01:52,911 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:01:52,911 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442585469]
[2024-11-18 11:01:52,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:01:52,912 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:01:52,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:01:53,047 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 11:01:53,048 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:01:53,048 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442585469]
[2024-11-18 11:01:53,048 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442585469] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:01:53,048 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 11:01:53,049 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 11:01:53,049 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558275559]
[2024-11-18 11:01:53,049 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:01:53,049 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 11:01:53,055 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:01:53,055 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 11:01:53,056 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:01:53,056 INFO  L87              Difference]: Start difference. First operand 11578 states and 14820 transitions. Second operand  has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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)
[2024-11-18 11:01:58,205 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:01:58,205 INFO  L93              Difference]: Finished difference Result 34273 states and 43832 transitions.
[2024-11-18 11:01:58,206 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 11:01:58,206 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 115
[2024-11-18 11:01:58,206 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:01:58,248 INFO  L225             Difference]: With dead ends: 34273
[2024-11-18 11:01:58,249 INFO  L226             Difference]: Without dead ends: 22697
[2024-11-18 11:01:58,264 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:01:58,265 INFO  L432           NwaCegarLoop]: 723 mSDtfsCounter, 2497 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 5120 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2497 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 5554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 5120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2024-11-18 11:01:58,266 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2497 Valid, 995 Invalid, 5554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 5120 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2024-11-18 11:01:58,286 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22697 states.
[2024-11-18 11:01:58,541 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22697 to 22694.
[2024-11-18 11:01:58,575 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22694 states, 22693 states have (on average 1.238663905168995) internal successors, (28109), 22693 states have internal predecessors, (28109), 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)
[2024-11-18 11:01:58,609 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22694 states to 22694 states and 28109 transitions.
[2024-11-18 11:01:58,610 INFO  L78                 Accepts]: Start accepts. Automaton has 22694 states and 28109 transitions. Word has length 115
[2024-11-18 11:01:58,611 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 11:01:58,611 INFO  L471      AbstractCegarLoop]: Abstraction has 22694 states and 28109 transitions.
[2024-11-18 11:01:58,612 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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)
[2024-11-18 11:01:58,612 INFO  L276                IsEmpty]: Start isEmpty. Operand 22694 states and 28109 transitions.
[2024-11-18 11:01:58,618 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 378
[2024-11-18 11:01:58,618 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:01:58,619 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 11:01:58,619 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 11:01:58,619 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:01:58,620 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:01:58,620 INFO  L85        PathProgramCache]: Analyzing trace with hash 120823532, now seen corresponding path program 1 times
[2024-11-18 11:01:58,620 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:01:58,620 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433723193]
[2024-11-18 11:01:58,621 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:01:58,621 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:01:58,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:01:59,594 INFO  L134       CoverageAnalysis]: Checked inductivity of 174 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-18 11:01:59,594 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:01:59,594 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433723193]
[2024-11-18 11:01:59,594 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433723193] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:01:59,594 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 11:01:59,594 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 11:01:59,594 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361509575]
[2024-11-18 11:01:59,595 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:01:59,598 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 11:01:59,599 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:01:59,599 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 11:01:59,599 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 11:01:59,599 INFO  L87              Difference]: Start difference. First operand 22694 states and 28109 transitions. Second operand  has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 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)
[2024-11-18 11:02:06,075 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:02:06,076 INFO  L93              Difference]: Finished difference Result 57752 states and 69837 transitions.
[2024-11-18 11:02:06,076 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 11:02:06,076 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 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 377
[2024-11-18 11:02:06,077 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:02:06,119 INFO  L225             Difference]: With dead ends: 57752
[2024-11-18 11:02:06,120 INFO  L226             Difference]: Without dead ends: 35060
[2024-11-18 11:02:06,142 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
[2024-11-18 11:02:06,144 INFO  L432           NwaCegarLoop]: 1805 mSDtfsCounter, 3756 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 9454 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3756 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 9698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 9454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2024-11-18 11:02:06,146 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3756 Valid, 2160 Invalid, 9698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 9454 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2024-11-18 11:02:06,174 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35060 states.
[2024-11-18 11:02:06,386 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35060 to 32288.
[2024-11-18 11:02:06,412 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32288 states, 32287 states have (on average 1.1912844178771642) internal successors, (38463), 32287 states have internal predecessors, (38463), 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)
[2024-11-18 11:02:06,442 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32288 states to 32288 states and 38463 transitions.
[2024-11-18 11:02:06,443 INFO  L78                 Accepts]: Start accepts. Automaton has 32288 states and 38463 transitions. Word has length 377
[2024-11-18 11:02:06,443 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 11:02:06,443 INFO  L471      AbstractCegarLoop]: Abstraction has 32288 states and 38463 transitions.
[2024-11-18 11:02:06,443 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 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)
[2024-11-18 11:02:06,443 INFO  L276                IsEmpty]: Start isEmpty. Operand 32288 states and 38463 transitions.
[2024-11-18 11:02:06,447 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 406
[2024-11-18 11:02:06,447 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:02:06,447 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 11:02:06,447 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 11:02:06,447 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:02:06,447 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:02:06,448 INFO  L85        PathProgramCache]: Analyzing trace with hash -299498682, now seen corresponding path program 1 times
[2024-11-18 11:02:06,448 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:02:06,448 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764957507]
[2024-11-18 11:02:06,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:02:06,448 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:02:06,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:02:06,909 INFO  L134       CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 11:02:06,910 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:02:06,910 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764957507]
[2024-11-18 11:02:06,911 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764957507] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:02:06,911 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 11:02:06,911 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 11:02:06,911 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463865913]
[2024-11-18 11:02:06,912 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:02:06,912 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 11:02:06,912 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:02:06,913 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 11:02:06,913 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 11:02:06,913 INFO  L87              Difference]: Start difference. First operand 32288 states and 38463 transitions. Second operand  has 4 states, 4 states have (on average 101.25) internal successors, (405), 3 states have internal predecessors, (405), 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)
[2024-11-18 11:02:11,833 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:02:11,833 INFO  L93              Difference]: Finished difference Result 67335 states and 79703 transitions.
[2024-11-18 11:02:11,833 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 11:02:11,834 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 101.25) internal successors, (405), 3 states have internal predecessors, (405), 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 405
[2024-11-18 11:02:11,834 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:02:11,878 INFO  L225             Difference]: With dead ends: 67335
[2024-11-18 11:02:11,878 INFO  L226             Difference]: Without dead ends: 35018
[2024-11-18 11:02:11,901 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 11:02:11,903 INFO  L432           NwaCegarLoop]: 1776 mSDtfsCounter, 1138 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 7327 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 7335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2024-11-18 11:02:11,904 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 2118 Invalid, 7335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 7327 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2024-11-18 11:02:11,927 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35018 states.
[2024-11-18 11:02:12,144 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35018 to 35018.
[2024-11-18 11:02:12,172 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35018 states, 35017 states have (on average 1.1765142645000999) internal successors, (41198), 35017 states have internal predecessors, (41198), 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)
[2024-11-18 11:02:12,206 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35018 states to 35018 states and 41198 transitions.
[2024-11-18 11:02:12,208 INFO  L78                 Accepts]: Start accepts. Automaton has 35018 states and 41198 transitions. Word has length 405
[2024-11-18 11:02:12,209 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 11:02:12,209 INFO  L471      AbstractCegarLoop]: Abstraction has 35018 states and 41198 transitions.
[2024-11-18 11:02:12,209 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 101.25) internal successors, (405), 3 states have internal predecessors, (405), 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)
[2024-11-18 11:02:12,209 INFO  L276                IsEmpty]: Start isEmpty. Operand 35018 states and 41198 transitions.
[2024-11-18 11:02:12,216 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 498
[2024-11-18 11:02:12,217 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:02:12,218 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 11:02:12,218 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-18 11:02:12,218 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:02:12,218 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:02:12,218 INFO  L85        PathProgramCache]: Analyzing trace with hash -6657364, now seen corresponding path program 1 times
[2024-11-18 11:02:12,219 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:02:12,219 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046991752]
[2024-11-18 11:02:12,219 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:02:12,219 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:02:12,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:02:12,504 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 11:02:12,505 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:02:12,505 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046991752]
[2024-11-18 11:02:12,505 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046991752] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:02:12,505 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 11:02:12,505 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 11:02:12,505 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002058506]
[2024-11-18 11:02:12,505 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:02:12,506 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 11:02:12,506 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:02:12,506 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 11:02:12,506 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:02:12,507 INFO  L87              Difference]: Start difference. First operand 35018 states and 41198 transitions. Second operand  has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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)
[2024-11-18 11:02:16,957 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:02:16,957 INFO  L93              Difference]: Finished difference Result 78377 states and 94558 transitions.
[2024-11-18 11:02:16,958 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 11:02:16,958 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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 497
[2024-11-18 11:02:16,958 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:02:17,007 INFO  L225             Difference]: With dead ends: 78377
[2024-11-18 11:02:17,007 INFO  L226             Difference]: Without dead ends: 46091
[2024-11-18 11:02:17,031 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:02:17,032 INFO  L432           NwaCegarLoop]: 2744 mSDtfsCounter, 1525 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 1803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 5864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1803 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-11-18 11:02:17,032 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 2923 Invalid, 5864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1803 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2024-11-18 11:02:17,062 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46091 states.
[2024-11-18 11:02:17,460 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46091 to 45986.
[2024-11-18 11:02:17,491 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 45986 states, 45985 states have (on average 1.167293682722627) internal successors, (53678), 45985 states have internal predecessors, (53678), 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)
[2024-11-18 11:02:17,532 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45986 states to 45986 states and 53678 transitions.
[2024-11-18 11:02:17,533 INFO  L78                 Accepts]: Start accepts. Automaton has 45986 states and 53678 transitions. Word has length 497
[2024-11-18 11:02:17,534 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 11:02:17,534 INFO  L471      AbstractCegarLoop]: Abstraction has 45986 states and 53678 transitions.
[2024-11-18 11:02:17,534 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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)
[2024-11-18 11:02:17,534 INFO  L276                IsEmpty]: Start isEmpty. Operand 45986 states and 53678 transitions.
[2024-11-18 11:02:17,541 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 710
[2024-11-18 11:02:17,541 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:02:17,541 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 11:02:17,541 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-18 11:02:17,541 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:02:17,542 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:02:17,542 INFO  L85        PathProgramCache]: Analyzing trace with hash -1947836828, now seen corresponding path program 1 times
[2024-11-18 11:02:17,542 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:02:17,542 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366777127]
[2024-11-18 11:02:17,542 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:02:17,542 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:02:17,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:02:17,942 INFO  L134       CoverageAnalysis]: Checked inductivity of 224 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked.
[2024-11-18 11:02:17,942 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:02:17,942 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366777127]
[2024-11-18 11:02:17,943 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366777127] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:02:17,943 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 11:02:17,943 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 11:02:17,943 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888119788]
[2024-11-18 11:02:17,943 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:02:17,943 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 11:02:17,943 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:02:17,944 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 11:02:17,944 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:02:17,944 INFO  L87              Difference]: Start difference. First operand 45986 states and 53678 transitions. Second operand  has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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)
[2024-11-18 11:02:23,146 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:02:23,147 INFO  L93              Difference]: Finished difference Result 104403 states and 124098 transitions.
[2024-11-18 11:02:23,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 11:02:23,147 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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 709
[2024-11-18 11:02:23,148 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:02:23,211 INFO  L225             Difference]: With dead ends: 104403
[2024-11-18 11:02:23,211 INFO  L226             Difference]: Without dead ends: 61149
[2024-11-18 11:02:23,237 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:02:23,238 INFO  L432           NwaCegarLoop]: 3197 mSDtfsCounter, 1466 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 5099 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 3373 SdHoareTripleChecker+Invalid, 6069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 5099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2024-11-18 11:02:23,238 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 3373 Invalid, 6069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [970 Valid, 5099 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2024-11-18 11:02:23,272 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61149 states.
[2024-11-18 11:02:23,723 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61149 to 61057.
[2024-11-18 11:02:23,759 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61057 states, 61056 states have (on average 1.1519097222222223) internal successors, (70331), 61056 states have internal predecessors, (70331), 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)
[2024-11-18 11:02:23,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61057 states to 61057 states and 70331 transitions.
[2024-11-18 11:02:23,814 INFO  L78                 Accepts]: Start accepts. Automaton has 61057 states and 70331 transitions. Word has length 709
[2024-11-18 11:02:23,815 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 11:02:23,815 INFO  L471      AbstractCegarLoop]: Abstraction has 61057 states and 70331 transitions.
[2024-11-18 11:02:23,815 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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)
[2024-11-18 11:02:23,815 INFO  L276                IsEmpty]: Start isEmpty. Operand 61057 states and 70331 transitions.
[2024-11-18 11:02:23,822 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 717
[2024-11-18 11:02:23,822 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:02:23,823 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 11:02:23,823 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-18 11:02:23,823 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:02:23,823 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:02:23,823 INFO  L85        PathProgramCache]: Analyzing trace with hash 696639145, now seen corresponding path program 1 times
[2024-11-18 11:02:23,824 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:02:23,824 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874611036]
[2024-11-18 11:02:23,824 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:02:23,824 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:02:23,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:02:25,062 INFO  L134       CoverageAnalysis]: Checked inductivity of 233 backedges. 37 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 11:02:25,063 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:02:25,063 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874611036]
[2024-11-18 11:02:25,063 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874611036] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 11:02:25,063 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564871875]
[2024-11-18 11:02:25,063 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:02:25,064 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 11:02:25,064 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 11:02:25,065 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 11:02:25,066 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-18 11:02:25,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:02:25,261 INFO  L255         TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-18 11:02:25,273 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 11:02:25,341 INFO  L134       CoverageAnalysis]: Checked inductivity of 233 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked.
[2024-11-18 11:02:25,342 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 11:02:25,342 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564871875] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:02:25,342 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 11:02:25,342 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-18 11:02:25,342 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329421098]
[2024-11-18 11:02:25,342 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:02:25,343 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 11:02:25,343 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:02:25,343 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 11:02:25,344 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-18 11:02:25,344 INFO  L87              Difference]: Start difference. First operand 61057 states and 70331 transitions. Second operand  has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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)
[2024-11-18 11:02:30,223 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:02:30,223 INFO  L93              Difference]: Finished difference Result 135904 states and 158829 transitions.
[2024-11-18 11:02:30,223 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 11:02:30,224 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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 716
[2024-11-18 11:02:30,224 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:02:30,303 INFO  L225             Difference]: With dead ends: 135904
[2024-11-18 11:02:30,303 INFO  L226             Difference]: Without dead ends: 77579
[2024-11-18 11:02:30,343 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 715 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-18 11:02:30,343 INFO  L432           NwaCegarLoop]: 3093 mSDtfsCounter, 1476 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 5007 mSolverCounterSat, 1004 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 6011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1004 IncrementalHoareTripleChecker+Valid, 5007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-11-18 11:02:30,344 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 3268 Invalid, 6011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1004 Valid, 5007 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2024-11-18 11:02:30,392 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 77579 states.
[2024-11-18 11:02:30,998 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 77579 to 76078.
[2024-11-18 11:02:31,036 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76078 states, 76077 states have (on average 1.1446297829830303) internal successors, (87080), 76077 states have internal predecessors, (87080), 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)
[2024-11-18 11:02:31,109 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76078 states to 76078 states and 87080 transitions.
[2024-11-18 11:02:31,109 INFO  L78                 Accepts]: Start accepts. Automaton has 76078 states and 87080 transitions. Word has length 716
[2024-11-18 11:02:31,110 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 11:02:31,110 INFO  L471      AbstractCegarLoop]: Abstraction has 76078 states and 87080 transitions.
[2024-11-18 11:02:31,110 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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)
[2024-11-18 11:02:31,110 INFO  L276                IsEmpty]: Start isEmpty. Operand 76078 states and 87080 transitions.
[2024-11-18 11:02:31,117 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 918
[2024-11-18 11:02:31,118 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:02:31,118 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 11:02:31,131 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-18 11:02:31,319 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 11:02:31,319 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:02:31,319 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:02:31,320 INFO  L85        PathProgramCache]: Analyzing trace with hash 377821694, now seen corresponding path program 1 times
[2024-11-18 11:02:31,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:02:31,320 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112170250]
[2024-11-18 11:02:31,320 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:02:31,320 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:02:31,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:02:32,013 INFO  L134       CoverageAnalysis]: Checked inductivity of 739 backedges. 522 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked.
[2024-11-18 11:02:32,013 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:02:32,013 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112170250]
[2024-11-18 11:02:32,013 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112170250] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:02:32,014 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 11:02:32,014 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 11:02:32,014 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871079854]
[2024-11-18 11:02:32,014 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:02:32,014 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 11:02:32,015 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:02:32,015 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 11:02:32,015 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 11:02:32,015 INFO  L87              Difference]: Start difference. First operand 76078 states and 87080 transitions. Second operand  has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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)
[2024-11-18 11:02:40,403 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:02:40,403 INFO  L93              Difference]: Finished difference Result 245284 states and 285310 transitions.
[2024-11-18 11:02:40,404 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 11:02:40,404 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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 917
[2024-11-18 11:02:40,404 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:02:40,565 INFO  L225             Difference]: With dead ends: 245284
[2024-11-18 11:02:40,565 INFO  L226             Difference]: Without dead ends: 171938
[2024-11-18 11:02:40,598 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 11:02:40,599 INFO  L432           NwaCegarLoop]: 1067 mSDtfsCounter, 3231 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 9217 mSolverCounterSat, 2635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3231 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 11852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2635 IncrementalHoareTripleChecker+Valid, 9217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time
[2024-11-18 11:02:40,599 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3231 Valid, 1419 Invalid, 11852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2635 Valid, 9217 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time]
[2024-11-18 11:02:40,695 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 171938 states.
[2024-11-18 11:02:42,162 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 171938 to 166294.
[2024-11-18 11:02:42,269 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 166294 states, 166293 states have (on average 1.1351710535019515) internal successors, (188771), 166293 states have internal predecessors, (188771), 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)
[2024-11-18 11:02:42,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 166294 states to 166294 states and 188771 transitions.
[2024-11-18 11:02:42,792 INFO  L78                 Accepts]: Start accepts. Automaton has 166294 states and 188771 transitions. Word has length 917
[2024-11-18 11:02:42,792 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 11:02:42,793 INFO  L471      AbstractCegarLoop]: Abstraction has 166294 states and 188771 transitions.
[2024-11-18 11:02:42,793 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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)
[2024-11-18 11:02:42,793 INFO  L276                IsEmpty]: Start isEmpty. Operand 166294 states and 188771 transitions.
[2024-11-18 11:02:42,802 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 994
[2024-11-18 11:02:42,802 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 11:02:42,803 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 11:02:42,803 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-18 11:02:42,803 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 11:02:42,804 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 11:02:42,804 INFO  L85        PathProgramCache]: Analyzing trace with hash 1152547103, now seen corresponding path program 1 times
[2024-11-18 11:02:42,804 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 11:02:42,804 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580861342]
[2024-11-18 11:02:42,804 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 11:02:42,804 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 11:02:43,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 11:02:43,535 INFO  L134       CoverageAnalysis]: Checked inductivity of 1033 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked.
[2024-11-18 11:02:43,535 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 11:02:43,535 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580861342]
[2024-11-18 11:02:43,535 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580861342] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 11:02:43,536 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 11:02:43,536 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 11:02:43,536 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319227780]
[2024-11-18 11:02:43,536 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 11:02:43,536 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 11:02:43,537 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 11:02:43,537 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 11:02:43,537 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:02:43,537 INFO  L87              Difference]: Start difference. First operand 166294 states and 188771 transitions. Second operand  has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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)
[2024-11-18 11:02:49,033 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 11:02:49,033 INFO  L93              Difference]: Finished difference Result 439066 states and 501671 transitions.
[2024-11-18 11:02:49,033 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 11:02:49,034 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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 993
[2024-11-18 11:02:49,035 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 11:02:49,343 INFO  L225             Difference]: With dead ends: 439066
[2024-11-18 11:02:49,343 INFO  L226             Difference]: Without dead ends: 255027
[2024-11-18 11:02:49,618 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 11:02:49,618 INFO  L432           NwaCegarLoop]: 3080 mSDtfsCounter, 1324 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 4463 mSolverCounterSat, 1265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 5728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1265 IncrementalHoareTripleChecker+Valid, 4463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2024-11-18 11:02:49,618 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 3269 Invalid, 5728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1265 Valid, 4463 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2024-11-18 11:02:49,749 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 255027 states.