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


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


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/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2f2704c4e2c6d7f64d9e04a1e2386cc75b096498be0071ea7fbc37af2938bd44
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 18:13:31,984 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 18:13:32,074 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-18 18:13:32,079 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 18:13:32,079 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 18:13:32,101 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 18:13:32,102 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 18:13:32,102 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 18:13:32,103 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 18:13:32,103 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 18:13:32,103 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 18:13:32,104 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 18:13:32,104 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 18:13:32,107 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 18:13:32,107 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 18:13:32,107 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 18:13:32,108 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 18:13:32,108 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 18:13:32,109 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 18:13:32,109 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 18:13:32,109 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 18:13:32,110 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 18:13:32,110 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 18:13:32,111 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 18:13:32,111 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 18:13:32,111 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 18:13:32,111 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 18:13:32,112 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 18:13:32,112 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 18:13:32,112 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 18:13:32,112 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 18:13:32,113 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 18:13:32,113 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 18:13:32,114 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 18:13:32,114 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 18:13:32,115 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 18:13:32,115 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 18:13:32,116 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 18:13:32,116 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 18:13:32,117 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f2704c4e2c6d7f64d9e04a1e2386cc75b096498be0071ea7fbc37af2938bd44
[2024-11-18 18:13:32,369 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 18:13:32,397 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 18:13:32,399 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 18:13:32,401 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 18:13:32,401 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 18:13:32,403 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c
[2024-11-18 18:13:33,852 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 18:13:34,139 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 18:13:34,140 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c
[2024-11-18 18:13:34,165 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64be8b2c9/2a7d3b876be24a72a42d3046ed9d0430/FLAGfd8ab8303
[2024-11-18 18:13:34,182 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64be8b2c9/2a7d3b876be24a72a42d3046ed9d0430
[2024-11-18 18:13:34,185 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 18:13:34,187 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 18:13:34,188 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 18:13:34,188 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 18:13:34,194 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 18:13:34,195 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:34,196 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b8676e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34, skipping insertion in model container
[2024-11-18 18:13:34,196 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:34,243 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 18:13:34,447 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326]
[2024-11-18 18:13:34,719 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 18:13:34,736 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 18:13:34,748 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326]
[2024-11-18 18:13:34,967 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 18:13:34,984 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 18:13:34,985 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34 WrapperNode
[2024-11-18 18:13:34,985 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 18:13:34,986 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 18:13:34,986 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 18:13:34,986 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 18:13:34,994 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,045 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,230 INFO  L138                Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2366
[2024-11-18 18:13:35,230 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 18:13:35,231 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 18:13:35,232 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 18:13:35,232 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 18:13:35,243 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,244 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,276 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,343 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 18:13:35,344 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,344 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,389 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,409 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,428 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,444 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,488 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 18:13:35,490 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 18:13:35,491 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 18:13:35,491 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 18:13:35,492 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (1/1) ...
[2024-11-18 18:13:35,498 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 18:13:35,509 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 18:13:35,528 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 18:13:35,535 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 18:13:35,580 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 18:13:35,580 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-18 18:13:35,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-18 18:13:35,581 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 18:13:35,581 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 18:13:35,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 18:13:35,812 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 18:13:35,814 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 18:13:38,949 INFO  L?                        ?]: Removed 1210 outVars from TransFormulas that were not future-live.
[2024-11-18 18:13:38,950 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 18:13:38,992 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 18:13:38,992 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 18:13:38,993 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:13:38 BoogieIcfgContainer
[2024-11-18 18:13:38,993 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 18:13:38,995 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 18:13:38,997 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 18:13:39,000 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 18:13:39,001 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:13:34" (1/3) ...
[2024-11-18 18:13:39,002 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7311c7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:13:39, skipping insertion in model container
[2024-11-18 18:13:39,002 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:13:34" (2/3) ...
[2024-11-18 18:13:39,003 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7311c7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:13:39, skipping insertion in model container
[2024-11-18 18:13:39,004 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:13:38" (3/3) ...
[2024-11-18 18:13:39,005 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c
[2024-11-18 18:13:39,022 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 18:13:39,022 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 18:13:39,119 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 18:13:39,129 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;@3613551d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 18:13:39,130 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 18:13:39,138 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 812 states, 807 states have (on average 1.503097893432466) internal successors, (1213), 808 states have internal predecessors, (1213), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:39,176 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 292
[2024-11-18 18:13:39,178 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:39,179 INFO  L215           NwaCegarLoop]: trace histogram [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 18:13:39,179 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:39,185 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:39,185 INFO  L85        PathProgramCache]: Analyzing trace with hash -1056094825, now seen corresponding path program 1 times
[2024-11-18 18:13:39,193 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:39,194 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879287316]
[2024-11-18 18:13:39,194 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:39,195 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:39,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:39,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-18 18:13:39,778 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:39,778 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879287316]
[2024-11-18 18:13:39,779 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879287316] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 18:13:39,780 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975300694]
[2024-11-18 18:13:39,780 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:39,780 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 18:13:39,781 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 18:13:39,783 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 18:13:39,784 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 18:13:40,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:40,354 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1396 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-18 18:13:40,370 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 18:13:40,401 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-18 18:13:40,401 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 18:13:40,402 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975300694] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:40,402 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 18:13:40,402 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-18 18:13:40,408 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14488004]
[2024-11-18 18:13:40,409 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:40,414 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-18 18:13:40,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:40,438 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-18 18:13:40,439 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 18:13:40,443 INFO  L87              Difference]: Start difference. First operand  has 812 states, 807 states have (on average 1.503097893432466) internal successors, (1213), 808 states have internal predecessors, (1213), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 2 states, 2 states have (on average 143.0) internal successors, (286), 2 states have internal predecessors, (286), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:40,533 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:40,533 INFO  L93              Difference]: Finished difference Result 1583 states and 2378 transitions.
[2024-11-18 18:13:40,538 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-18 18:13:40,540 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 143.0) internal successors, (286), 2 states have internal predecessors, (286), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 291
[2024-11-18 18:13:40,540 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:40,556 INFO  L225             Difference]: With dead ends: 1583
[2024-11-18 18:13:40,556 INFO  L226             Difference]: Without dead ends: 809
[2024-11-18 18:13:40,563 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 18:13:40,570 INFO  L432           NwaCegarLoop]: 1208 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:40,573 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 18:13:40,593 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 809 states.
[2024-11-18 18:13:40,644 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809.
[2024-11-18 18:13:40,647 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 809 states, 805 states have (on average 1.4956521739130435) internal successors, (1204), 805 states have internal predecessors, (1204), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:40,649 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1208 transitions.
[2024-11-18 18:13:40,651 INFO  L78                 Accepts]: Start accepts. Automaton has 809 states and 1208 transitions. Word has length 291
[2024-11-18 18:13:40,652 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:40,652 INFO  L471      AbstractCegarLoop]: Abstraction has 809 states and 1208 transitions.
[2024-11-18 18:13:40,653 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 143.0) internal successors, (286), 2 states have internal predecessors, (286), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:40,653 INFO  L276                IsEmpty]: Start isEmpty. Operand 809 states and 1208 transitions.
[2024-11-18 18:13:40,658 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 292
[2024-11-18 18:13:40,658 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:40,658 INFO  L215           NwaCegarLoop]: trace histogram [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 18:13:40,684 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 18:13:40,859 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-18 18:13:40,860 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:40,860 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:40,860 INFO  L85        PathProgramCache]: Analyzing trace with hash -300508269, now seen corresponding path program 1 times
[2024-11-18 18:13:40,861 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:40,861 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532321548]
[2024-11-18 18:13:40,861 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:40,861 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:41,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:42,390 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:42,390 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:42,391 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532321548]
[2024-11-18 18:13:42,391 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532321548] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:42,391 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:42,391 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 18:13:42,391 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416026695]
[2024-11-18 18:13:42,392 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:42,393 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 18:13:42,393 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:42,394 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 18:13:42,394 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:13:42,394 INFO  L87              Difference]: Start difference. First operand 809 states and 1208 transitions. Second operand  has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:42,434 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:42,435 INFO  L93              Difference]: Finished difference Result 813 states and 1212 transitions.
[2024-11-18 18:13:42,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 18:13:42,436 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 291
[2024-11-18 18:13:42,437 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:42,440 INFO  L225             Difference]: With dead ends: 813
[2024-11-18 18:13:42,441 INFO  L226             Difference]: Without dead ends: 811
[2024-11-18 18:13:42,441 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:13:42,442 INFO  L432           NwaCegarLoop]: 1206 mSDtfsCounter, 0 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:42,443 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3612 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 18:13:42,444 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 811 states.
[2024-11-18 18:13:42,458 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 811.
[2024-11-18 18:13:42,460 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 811 states, 807 states have (on average 1.4944237918215613) internal successors, (1206), 807 states have internal predecessors, (1206), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:42,462 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1210 transitions.
[2024-11-18 18:13:42,462 INFO  L78                 Accepts]: Start accepts. Automaton has 811 states and 1210 transitions. Word has length 291
[2024-11-18 18:13:42,464 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:42,464 INFO  L471      AbstractCegarLoop]: Abstraction has 811 states and 1210 transitions.
[2024-11-18 18:13:42,464 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:42,465 INFO  L276                IsEmpty]: Start isEmpty. Operand 811 states and 1210 transitions.
[2024-11-18 18:13:42,468 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 293
[2024-11-18 18:13:42,468 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:42,468 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:42,468 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 18:13:42,469 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:42,469 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:42,469 INFO  L85        PathProgramCache]: Analyzing trace with hash -724124799, now seen corresponding path program 1 times
[2024-11-18 18:13:42,470 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:42,470 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2532042]
[2024-11-18 18:13:42,470 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:42,470 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:42,647 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:43,250 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:43,251 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:43,253 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2532042]
[2024-11-18 18:13:43,253 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2532042] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:43,253 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:43,254 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 18:13:43,254 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740845364]
[2024-11-18 18:13:43,254 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:43,257 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 18:13:43,257 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:43,258 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 18:13:43,258 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 18:13:43,258 INFO  L87              Difference]: Start difference. First operand 811 states and 1210 transitions. Second operand  has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:43,529 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:43,529 INFO  L93              Difference]: Finished difference Result 2327 states and 3478 transitions.
[2024-11-18 18:13:43,530 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:13:43,530 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 292
[2024-11-18 18:13:43,532 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:43,537 INFO  L225             Difference]: With dead ends: 2327
[2024-11-18 18:13:43,539 INFO  L226             Difference]: Without dead ends: 811
[2024-11-18 18:13:43,542 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:13:43,543 INFO  L432           NwaCegarLoop]: 2265 mSDtfsCounter, 2043 mSDsluCounter, 3396 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 5661 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:43,543 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2044 Valid, 5661 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-18 18:13:43,547 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 811 states.
[2024-11-18 18:13:43,601 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 811.
[2024-11-18 18:13:43,603 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 811 states, 807 states have (on average 1.493184634448575) internal successors, (1205), 807 states have internal predecessors, (1205), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:43,605 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1209 transitions.
[2024-11-18 18:13:43,605 INFO  L78                 Accepts]: Start accepts. Automaton has 811 states and 1209 transitions. Word has length 292
[2024-11-18 18:13:43,606 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:43,606 INFO  L471      AbstractCegarLoop]: Abstraction has 811 states and 1209 transitions.
[2024-11-18 18:13:43,607 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:43,607 INFO  L276                IsEmpty]: Start isEmpty. Operand 811 states and 1209 transitions.
[2024-11-18 18:13:43,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 294
[2024-11-18 18:13:43,611 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:43,611 INFO  L215           NwaCegarLoop]: trace histogram [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 18:13:43,611 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 18:13:43,612 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:43,612 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:43,613 INFO  L85        PathProgramCache]: Analyzing trace with hash -748671506, now seen corresponding path program 1 times
[2024-11-18 18:13:43,613 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:43,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311722770]
[2024-11-18 18:13:43,614 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:43,614 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:43,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:44,338 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:44,338 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:44,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311722770]
[2024-11-18 18:13:44,340 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311722770] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:44,341 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:44,341 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 18:13:44,342 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792361030]
[2024-11-18 18:13:44,342 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:44,342 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 18:13:44,342 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:44,343 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 18:13:44,343 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:13:44,343 INFO  L87              Difference]: Start difference. First operand 811 states and 1209 transitions. Second operand  has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:44,397 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:44,397 INFO  L93              Difference]: Finished difference Result 1586 states and 2365 transitions.
[2024-11-18 18:13:44,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 18:13:44,399 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 293
[2024-11-18 18:13:44,399 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:44,402 INFO  L225             Difference]: With dead ends: 1586
[2024-11-18 18:13:44,403 INFO  L226             Difference]: Without dead ends: 813
[2024-11-18 18:13:44,405 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:13:44,406 INFO  L432           NwaCegarLoop]: 1205 mSDtfsCounter, 0 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3605 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:44,408 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3605 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 18:13:44,409 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 813 states.
[2024-11-18 18:13:44,422 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813.
[2024-11-18 18:13:44,424 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 813 states, 809 states have (on average 1.491965389369592) internal successors, (1207), 809 states have internal predecessors, (1207), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:44,426 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1211 transitions.
[2024-11-18 18:13:44,426 INFO  L78                 Accepts]: Start accepts. Automaton has 813 states and 1211 transitions. Word has length 293
[2024-11-18 18:13:44,428 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:44,428 INFO  L471      AbstractCegarLoop]: Abstraction has 813 states and 1211 transitions.
[2024-11-18 18:13:44,428 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:44,429 INFO  L276                IsEmpty]: Start isEmpty. Operand 813 states and 1211 transitions.
[2024-11-18 18:13:44,432 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 295
[2024-11-18 18:13:44,432 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:44,432 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:44,432 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 18:13:44,433 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:44,434 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:44,434 INFO  L85        PathProgramCache]: Analyzing trace with hash 1463022943, now seen corresponding path program 1 times
[2024-11-18 18:13:44,434 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:44,434 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33115752]
[2024-11-18 18:13:44,434 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:44,435 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:44,700 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:45,341 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:45,345 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:45,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33115752]
[2024-11-18 18:13:45,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33115752] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:45,346 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:45,346 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 18:13:45,346 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773437973]
[2024-11-18 18:13:45,346 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:45,347 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 18:13:45,347 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:45,348 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 18:13:45,348 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:13:45,348 INFO  L87              Difference]: Start difference. First operand 813 states and 1211 transitions. Second operand  has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:45,437 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:45,437 INFO  L93              Difference]: Finished difference Result 1588 states and 2366 transitions.
[2024-11-18 18:13:45,438 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 18:13:45,439 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 294
[2024-11-18 18:13:45,439 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:45,443 INFO  L225             Difference]: With dead ends: 1588
[2024-11-18 18:13:45,444 INFO  L226             Difference]: Without dead ends: 813
[2024-11-18 18:13:45,446 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 18:13:45,447 INFO  L432           NwaCegarLoop]: 1191 mSDtfsCounter, 1162 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:45,448 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 2384 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 18:13:45,449 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 813 states.
[2024-11-18 18:13:45,464 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813.
[2024-11-18 18:13:45,465 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 813 states, 809 states have (on average 1.4907292954264524) internal successors, (1206), 809 states have internal predecessors, (1206), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:45,468 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1210 transitions.
[2024-11-18 18:13:45,469 INFO  L78                 Accepts]: Start accepts. Automaton has 813 states and 1210 transitions. Word has length 294
[2024-11-18 18:13:45,469 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:45,469 INFO  L471      AbstractCegarLoop]: Abstraction has 813 states and 1210 transitions.
[2024-11-18 18:13:45,470 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:45,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 813 states and 1210 transitions.
[2024-11-18 18:13:45,474 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 296
[2024-11-18 18:13:45,474 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:45,475 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:45,475 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 18:13:45,475 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:45,476 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:45,476 INFO  L85        PathProgramCache]: Analyzing trace with hash 1165914221, now seen corresponding path program 1 times
[2024-11-18 18:13:45,477 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:45,477 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307026993]
[2024-11-18 18:13:45,477 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:45,477 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:45,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:46,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:46,312 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:46,312 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307026993]
[2024-11-18 18:13:46,312 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307026993] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:46,312 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:46,312 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 18:13:46,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757565473]
[2024-11-18 18:13:46,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:46,313 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 18:13:46,313 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:46,314 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 18:13:46,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:13:46,315 INFO  L87              Difference]: Start difference. First operand 813 states and 1210 transitions. Second operand  has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:46,395 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:46,395 INFO  L93              Difference]: Finished difference Result 1588 states and 2364 transitions.
[2024-11-18 18:13:46,396 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 18:13:46,396 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 295
[2024-11-18 18:13:46,396 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:46,399 INFO  L225             Difference]: With dead ends: 1588
[2024-11-18 18:13:46,400 INFO  L226             Difference]: Without dead ends: 813
[2024-11-18 18:13:46,401 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 18:13:46,401 INFO  L432           NwaCegarLoop]: 1191 mSDtfsCounter, 1160 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:46,402 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 2384 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 18:13:46,403 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 813 states.
[2024-11-18 18:13:46,413 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813.
[2024-11-18 18:13:46,414 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 813 states, 809 states have (on average 1.4894932014833127) internal successors, (1205), 809 states have internal predecessors, (1205), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:13:46,417 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1209 transitions.
[2024-11-18 18:13:46,417 INFO  L78                 Accepts]: Start accepts. Automaton has 813 states and 1209 transitions. Word has length 295
[2024-11-18 18:13:46,417 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:46,417 INFO  L471      AbstractCegarLoop]: Abstraction has 813 states and 1209 transitions.
[2024-11-18 18:13:46,418 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:46,418 INFO  L276                IsEmpty]: Start isEmpty. Operand 813 states and 1209 transitions.
[2024-11-18 18:13:46,421 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 297
[2024-11-18 18:13:46,421 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:46,421 INFO  L215           NwaCegarLoop]: trace histogram [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 18:13:46,422 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-18 18:13:46,422 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:46,422 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:46,422 INFO  L85        PathProgramCache]: Analyzing trace with hash 32960060, now seen corresponding path program 1 times
[2024-11-18 18:13:46,423 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:46,423 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588899822]
[2024-11-18 18:13:46,423 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:46,423 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:46,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:47,417 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:47,418 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:47,420 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588899822]
[2024-11-18 18:13:47,420 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588899822] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:47,420 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:47,420 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 18:13:47,420 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348318406]
[2024-11-18 18:13:47,420 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:47,421 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 18:13:47,421 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:47,422 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 18:13:47,422 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 18:13:47,423 INFO  L87              Difference]: Start difference. First operand 813 states and 1209 transitions. Second operand  has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:47,549 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:47,549 INFO  L93              Difference]: Finished difference Result 2239 states and 3332 transitions.
[2024-11-18 18:13:47,549 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 18:13:47,550 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 296
[2024-11-18 18:13:47,550 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:47,555 INFO  L225             Difference]: With dead ends: 2239
[2024-11-18 18:13:47,556 INFO  L226             Difference]: Without dead ends: 1464
[2024-11-18 18:13:47,557 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:13:47,558 INFO  L432           NwaCegarLoop]: 2098 mSDtfsCounter, 941 mSDsluCounter, 5376 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 7474 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:47,559 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 7474 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:13:47,561 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1464 states.
[2024-11-18 18:13:47,580 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 852.
[2024-11-18 18:13:47,583 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 852 states, 846 states have (on average 1.4846335697399526) internal successors, (1256), 846 states have internal predecessors, (1256), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-18 18:13:47,586 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1264 transitions.
[2024-11-18 18:13:47,586 INFO  L78                 Accepts]: Start accepts. Automaton has 852 states and 1264 transitions. Word has length 296
[2024-11-18 18:13:47,587 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:47,587 INFO  L471      AbstractCegarLoop]: Abstraction has 852 states and 1264 transitions.
[2024-11-18 18:13:47,587 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:47,587 INFO  L276                IsEmpty]: Start isEmpty. Operand 852 states and 1264 transitions.
[2024-11-18 18:13:47,591 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 298
[2024-11-18 18:13:47,591 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:47,591 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:47,591 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-18 18:13:47,592 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:47,593 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:47,593 INFO  L85        PathProgramCache]: Analyzing trace with hash -1992360579, now seen corresponding path program 1 times
[2024-11-18 18:13:47,593 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:47,593 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452245957]
[2024-11-18 18:13:47,594 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:47,594 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:47,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:48,421 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:48,421 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:48,421 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452245957]
[2024-11-18 18:13:48,422 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452245957] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:48,422 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:48,422 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:13:48,422 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936968198]
[2024-11-18 18:13:48,422 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:48,423 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:13:48,423 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:48,424 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:13:48,424 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:13:48,424 INFO  L87              Difference]: Start difference. First operand 852 states and 1264 transitions. Second operand  has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:48,550 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:48,550 INFO  L93              Difference]: Finished difference Result 2317 states and 3442 transitions.
[2024-11-18 18:13:48,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:13:48,551 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 297
[2024-11-18 18:13:48,551 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:48,557 INFO  L225             Difference]: With dead ends: 2317
[2024-11-18 18:13:48,557 INFO  L226             Difference]: Without dead ends: 1503
[2024-11-18 18:13:48,558 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:13:48,559 INFO  L432           NwaCegarLoop]: 1453 mSDtfsCounter, 1418 mSDsluCounter, 4089 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 5542 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:48,559 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 5542 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:13:48,561 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1503 states.
[2024-11-18 18:13:48,586 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1355.
[2024-11-18 18:13:48,589 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1355 states, 1347 states have (on average 1.4870081662954715) internal successors, (2003), 1347 states have internal predecessors, (2003), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-18 18:13:48,592 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 2015 transitions.
[2024-11-18 18:13:48,593 INFO  L78                 Accepts]: Start accepts. Automaton has 1355 states and 2015 transitions. Word has length 297
[2024-11-18 18:13:48,593 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:48,593 INFO  L471      AbstractCegarLoop]: Abstraction has 1355 states and 2015 transitions.
[2024-11-18 18:13:48,594 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:48,594 INFO  L276                IsEmpty]: Start isEmpty. Operand 1355 states and 2015 transitions.
[2024-11-18 18:13:48,598 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 298
[2024-11-18 18:13:48,598 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:48,598 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:48,598 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-18 18:13:48,599 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:48,599 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:48,599 INFO  L85        PathProgramCache]: Analyzing trace with hash -2001916055, now seen corresponding path program 1 times
[2024-11-18 18:13:48,599 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:48,600 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121504522]
[2024-11-18 18:13:48,600 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:48,600 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:48,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:49,086 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:49,086 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:49,087 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121504522]
[2024-11-18 18:13:49,087 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121504522] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:49,087 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:49,087 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 18:13:49,087 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880591003]
[2024-11-18 18:13:49,089 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:49,090 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 18:13:49,090 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:49,091 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 18:13:49,091 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:13:49,091 INFO  L87              Difference]: Start difference. First operand 1355 states and 2015 transitions. Second operand  has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:49,208 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:49,208 INFO  L93              Difference]: Finished difference Result 2672 states and 3974 transitions.
[2024-11-18 18:13:49,209 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 18:13:49,210 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 297
[2024-11-18 18:13:49,210 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:49,215 INFO  L225             Difference]: With dead ends: 2672
[2024-11-18 18:13:49,215 INFO  L226             Difference]: Without dead ends: 1355
[2024-11-18 18:13:49,217 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:13:49,219 INFO  L432           NwaCegarLoop]: 1198 mSDtfsCounter, 1155 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:49,220 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 2400 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 18:13:49,222 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1355 states.
[2024-11-18 18:13:49,250 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1355.
[2024-11-18 18:13:49,253 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1355 states, 1347 states have (on average 1.4855233853006682) internal successors, (2001), 1347 states have internal predecessors, (2001), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-18 18:13:49,258 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 2013 transitions.
[2024-11-18 18:13:49,259 INFO  L78                 Accepts]: Start accepts. Automaton has 1355 states and 2013 transitions. Word has length 297
[2024-11-18 18:13:49,259 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:49,259 INFO  L471      AbstractCegarLoop]: Abstraction has 1355 states and 2013 transitions.
[2024-11-18 18:13:49,260 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:49,260 INFO  L276                IsEmpty]: Start isEmpty. Operand 1355 states and 2013 transitions.
[2024-11-18 18:13:49,265 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 299
[2024-11-18 18:13:49,265 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:49,265 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:49,265 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-18 18:13:49,266 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:49,266 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:49,266 INFO  L85        PathProgramCache]: Analyzing trace with hash 257820316, now seen corresponding path program 1 times
[2024-11-18 18:13:49,266 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:49,266 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175136723]
[2024-11-18 18:13:49,267 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:49,267 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:49,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:50,526 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:50,527 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:50,527 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175136723]
[2024-11-18 18:13:50,527 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175136723] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:50,527 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:50,528 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 18:13:50,528 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741652735]
[2024-11-18 18:13:50,528 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:50,528 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 18:13:50,529 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:50,529 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 18:13:50,529 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 18:13:50,530 INFO  L87              Difference]: Start difference. First operand 1355 states and 2013 transitions. Second operand  has 5 states, 5 states have (on average 58.2) internal successors, (291), 5 states have internal predecessors, (291), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:50,689 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:50,689 INFO  L93              Difference]: Finished difference Result 3324 states and 4936 transitions.
[2024-11-18 18:13:50,690 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 18:13:50,690 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 58.2) internal successors, (291), 5 states have internal predecessors, (291), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 298
[2024-11-18 18:13:50,690 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:50,698 INFO  L225             Difference]: With dead ends: 3324
[2024-11-18 18:13:50,698 INFO  L226             Difference]: Without dead ends: 2007
[2024-11-18 18:13:50,700 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:13:50,700 INFO  L432           NwaCegarLoop]: 1197 mSDtfsCounter, 323 mSDsluCounter, 3560 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 4757 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:50,701 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 4757 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:13:50,703 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2007 states.
[2024-11-18 18:13:50,737 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1961.
[2024-11-18 18:13:50,742 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1961 states, 1947 states have (on average 1.4817668207498715) internal successors, (2885), 1947 states have internal predecessors, (2885), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-18 18:13:50,752 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2909 transitions.
[2024-11-18 18:13:50,752 INFO  L78                 Accepts]: Start accepts. Automaton has 1961 states and 2909 transitions. Word has length 298
[2024-11-18 18:13:50,755 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:50,756 INFO  L471      AbstractCegarLoop]: Abstraction has 1961 states and 2909 transitions.
[2024-11-18 18:13:50,756 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 58.2) internal successors, (291), 5 states have internal predecessors, (291), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:50,756 INFO  L276                IsEmpty]: Start isEmpty. Operand 1961 states and 2909 transitions.
[2024-11-18 18:13:50,762 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 300
[2024-11-18 18:13:50,763 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:50,763 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:50,763 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-18 18:13:50,764 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:50,764 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:50,764 INFO  L85        PathProgramCache]: Analyzing trace with hash -1564906656, now seen corresponding path program 1 times
[2024-11-18 18:13:50,764 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:50,764 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65742698]
[2024-11-18 18:13:50,765 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:50,765 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:50,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:51,254 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:51,254 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:51,255 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65742698]
[2024-11-18 18:13:51,255 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65742698] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:51,255 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:51,255 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 18:13:51,255 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544527854]
[2024-11-18 18:13:51,255 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:51,256 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 18:13:51,256 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:51,257 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 18:13:51,257 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:13:51,257 INFO  L87              Difference]: Start difference. First operand 1961 states and 2909 transitions. Second operand  has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:51,310 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:51,311 INFO  L93              Difference]: Finished difference Result 3278 states and 4866 transitions.
[2024-11-18 18:13:51,311 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 18:13:51,311 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 299
[2024-11-18 18:13:51,312 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:51,319 INFO  L225             Difference]: With dead ends: 3278
[2024-11-18 18:13:51,319 INFO  L226             Difference]: Without dead ends: 1961
[2024-11-18 18:13:51,322 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:13:51,322 INFO  L432           NwaCegarLoop]: 1198 mSDtfsCounter, 1039 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:51,323 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 2400 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 18:13:51,325 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1961 states.
[2024-11-18 18:13:51,358 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1961.
[2024-11-18 18:13:51,361 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1961 states, 1947 states have (on average 1.4807395993836672) internal successors, (2883), 1947 states have internal predecessors, (2883), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-18 18:13:51,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2907 transitions.
[2024-11-18 18:13:51,366 INFO  L78                 Accepts]: Start accepts. Automaton has 1961 states and 2907 transitions. Word has length 299
[2024-11-18 18:13:51,366 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:51,367 INFO  L471      AbstractCegarLoop]: Abstraction has 1961 states and 2907 transitions.
[2024-11-18 18:13:51,367 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:51,367 INFO  L276                IsEmpty]: Start isEmpty. Operand 1961 states and 2907 transitions.
[2024-11-18 18:13:51,372 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 300
[2024-11-18 18:13:51,372 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:51,373 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:51,373 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-18 18:13:51,373 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:51,373 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:51,373 INFO  L85        PathProgramCache]: Analyzing trace with hash 349739153, now seen corresponding path program 1 times
[2024-11-18 18:13:51,373 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:51,374 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674237001]
[2024-11-18 18:13:51,374 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:51,374 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:51,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:52,404 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:52,405 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:52,405 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674237001]
[2024-11-18 18:13:52,405 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674237001] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:52,405 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:52,405 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:13:52,406 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022577504]
[2024-11-18 18:13:52,406 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:52,406 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:13:52,406 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:52,407 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:13:52,407 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:13:52,408 INFO  L87              Difference]: Start difference. First operand 1961 states and 2907 transitions. Second operand  has 6 states, 6 states have (on average 48.666666666666664) internal successors, (292), 6 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:52,816 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:52,816 INFO  L93              Difference]: Finished difference Result 3612 states and 5358 transitions.
[2024-11-18 18:13:52,817 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:13:52,818 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 48.666666666666664) internal successors, (292), 6 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 299
[2024-11-18 18:13:52,818 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:52,825 INFO  L225             Difference]: With dead ends: 3612
[2024-11-18 18:13:52,825 INFO  L226             Difference]: Without dead ends: 2109
[2024-11-18 18:13:52,828 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:13:52,828 INFO  L432           NwaCegarLoop]: 1126 mSDtfsCounter, 2093 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:52,828 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 4484 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 18:13:52,831 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2109 states.
[2024-11-18 18:13:52,866 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 1961.
[2024-11-18 18:13:52,869 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1961 states, 1947 states have (on average 1.4797123780174628) internal successors, (2881), 1947 states have internal predecessors, (2881), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-18 18:13:52,875 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2905 transitions.
[2024-11-18 18:13:52,876 INFO  L78                 Accepts]: Start accepts. Automaton has 1961 states and 2905 transitions. Word has length 299
[2024-11-18 18:13:52,876 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:52,876 INFO  L471      AbstractCegarLoop]: Abstraction has 1961 states and 2905 transitions.
[2024-11-18 18:13:52,876 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 48.666666666666664) internal successors, (292), 6 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:52,876 INFO  L276                IsEmpty]: Start isEmpty. Operand 1961 states and 2905 transitions.
[2024-11-18 18:13:52,885 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 300
[2024-11-18 18:13:52,885 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:52,885 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:52,885 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-18 18:13:52,886 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:52,886 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:52,886 INFO  L85        PathProgramCache]: Analyzing trace with hash -2084295276, now seen corresponding path program 1 times
[2024-11-18 18:13:52,886 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:52,887 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112171084]
[2024-11-18 18:13:52,887 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:52,887 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:53,251 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:54,841 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:54,841 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:54,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112171084]
[2024-11-18 18:13:54,842 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112171084] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:54,842 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:54,842 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-18 18:13:54,842 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053207059]
[2024-11-18 18:13:54,843 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:54,843 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-18 18:13:54,843 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:54,844 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-18 18:13:54,844 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:13:54,845 INFO  L87              Difference]: Start difference. First operand 1961 states and 2905 transitions. Second operand  has 8 states, 8 states have (on average 36.5) internal successors, (292), 8 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:55,244 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:55,245 INFO  L93              Difference]: Finished difference Result 3292 states and 4879 transitions.
[2024-11-18 18:13:55,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:13:55,246 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 36.5) internal successors, (292), 8 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 299
[2024-11-18 18:13:55,247 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:55,255 INFO  L225             Difference]: With dead ends: 3292
[2024-11-18 18:13:55,255 INFO  L226             Difference]: Without dead ends: 1975
[2024-11-18 18:13:55,258 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:13:55,258 INFO  L432           NwaCegarLoop]: 1122 mSDtfsCounter, 1862 mSDsluCounter, 4439 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 5561 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:55,259 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1862 Valid, 5561 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 18:13:55,261 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1975 states.
[2024-11-18 18:13:55,306 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1973.
[2024-11-18 18:13:55,310 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1973 states, 1959 states have (on average 1.4788157223072997) internal successors, (2897), 1959 states have internal predecessors, (2897), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-18 18:13:55,317 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2921 transitions.
[2024-11-18 18:13:55,317 INFO  L78                 Accepts]: Start accepts. Automaton has 1973 states and 2921 transitions. Word has length 299
[2024-11-18 18:13:55,318 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:55,318 INFO  L471      AbstractCegarLoop]: Abstraction has 1973 states and 2921 transitions.
[2024-11-18 18:13:55,318 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 36.5) internal successors, (292), 8 states have internal predecessors, (292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:55,319 INFO  L276                IsEmpty]: Start isEmpty. Operand 1973 states and 2921 transitions.
[2024-11-18 18:13:55,325 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 301
[2024-11-18 18:13:55,326 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:55,326 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:55,326 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-18 18:13:55,327 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:55,327 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:55,327 INFO  L85        PathProgramCache]: Analyzing trace with hash 1847982124, now seen corresponding path program 1 times
[2024-11-18 18:13:55,327 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:55,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433812319]
[2024-11-18 18:13:55,328 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:55,328 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:55,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:56,584 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:56,585 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:56,585 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433812319]
[2024-11-18 18:13:56,585 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433812319] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:56,585 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:56,586 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 18:13:56,586 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819313878]
[2024-11-18 18:13:56,586 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:56,587 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 18:13:56,588 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:56,588 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 18:13:56,588 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:13:56,589 INFO  L87              Difference]: Start difference. First operand 1973 states and 2921 transitions. Second operand  has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:57,020 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:57,020 INFO  L93              Difference]: Finished difference Result 3960 states and 5864 transitions.
[2024-11-18 18:13:57,021 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:13:57,021 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 300
[2024-11-18 18:13:57,022 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:57,030 INFO  L225             Difference]: With dead ends: 3960
[2024-11-18 18:13:57,031 INFO  L226             Difference]: Without dead ends: 2631
[2024-11-18 18:13:57,033 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:13:57,034 INFO  L432           NwaCegarLoop]: 1570 mSDtfsCounter, 1501 mSDsluCounter, 4679 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 6249 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:57,034 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 6249 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-18 18:13:57,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2631 states.
[2024-11-18 18:13:57,078 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2625.
[2024-11-18 18:13:57,086 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2625 states, 2605 states have (on average 1.4763915547024953) internal successors, (3846), 2605 states have internal predecessors, (3846), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-18 18:13:57,095 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 3882 transitions.
[2024-11-18 18:13:57,097 INFO  L78                 Accepts]: Start accepts. Automaton has 2625 states and 3882 transitions. Word has length 300
[2024-11-18 18:13:57,097 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:57,098 INFO  L471      AbstractCegarLoop]: Abstraction has 2625 states and 3882 transitions.
[2024-11-18 18:13:57,098 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 41.857142857142854) internal successors, (293), 7 states have internal predecessors, (293), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:57,098 INFO  L276                IsEmpty]: Start isEmpty. Operand 2625 states and 3882 transitions.
[2024-11-18 18:13:57,106 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 302
[2024-11-18 18:13:57,106 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:57,106 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:57,106 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-18 18:13:57,107 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:57,107 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:57,107 INFO  L85        PathProgramCache]: Analyzing trace with hash -314137468, now seen corresponding path program 1 times
[2024-11-18 18:13:57,108 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:57,108 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580553706]
[2024-11-18 18:13:57,108 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:57,108 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:57,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:58,271 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:58,272 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:58,272 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580553706]
[2024-11-18 18:13:58,272 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580553706] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:58,272 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:58,272 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:13:58,272 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786168016]
[2024-11-18 18:13:58,272 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:58,273 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:13:58,273 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:58,277 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:13:58,277 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:13:58,278 INFO  L87              Difference]: Start difference. First operand 2625 states and 3882 transitions. Second operand  has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:58,557 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:58,557 INFO  L93              Difference]: Finished difference Result 4904 states and 7268 transitions.
[2024-11-18 18:13:58,558 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:13:58,559 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 301
[2024-11-18 18:13:58,559 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:58,568 INFO  L225             Difference]: With dead ends: 4904
[2024-11-18 18:13:58,568 INFO  L226             Difference]: Without dead ends: 2625
[2024-11-18 18:13:58,573 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:13:58,573 INFO  L432           NwaCegarLoop]: 1115 mSDtfsCounter, 1150 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 3547 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:58,574 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 3547 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-18 18:13:58,576 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2625 states.
[2024-11-18 18:13:58,618 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 2508.
[2024-11-18 18:13:58,622 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2508 states, 2494 states have (on average 1.4783480352846832) internal successors, (3687), 2494 states have internal predecessors, (3687), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-18 18:13:58,627 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 3711 transitions.
[2024-11-18 18:13:58,628 INFO  L78                 Accepts]: Start accepts. Automaton has 2508 states and 3711 transitions. Word has length 301
[2024-11-18 18:13:58,628 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:58,628 INFO  L471      AbstractCegarLoop]: Abstraction has 2508 states and 3711 transitions.
[2024-11-18 18:13:58,628 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:58,629 INFO  L276                IsEmpty]: Start isEmpty. Operand 2508 states and 3711 transitions.
[2024-11-18 18:13:58,633 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 302
[2024-11-18 18:13:58,633 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:58,634 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:58,634 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-18 18:13:58,634 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:58,635 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:58,635 INFO  L85        PathProgramCache]: Analyzing trace with hash 106509226, now seen corresponding path program 1 times
[2024-11-18 18:13:58,635 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:58,635 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391007874]
[2024-11-18 18:13:58,635 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:58,635 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:58,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:13:59,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:13:59,448 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:13:59,449 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391007874]
[2024-11-18 18:13:59,449 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391007874] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:13:59,449 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:13:59,449 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:13:59,449 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523755956]
[2024-11-18 18:13:59,449 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:13:59,450 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:13:59,450 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:13:59,451 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:13:59,451 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:13:59,451 INFO  L87              Difference]: Start difference. First operand 2508 states and 3711 transitions. Second operand  has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:59,676 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:13:59,676 INFO  L93              Difference]: Finished difference Result 5391 states and 7987 transitions.
[2024-11-18 18:13:59,677 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:13:59,677 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 301
[2024-11-18 18:13:59,677 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:13:59,689 INFO  L225             Difference]: With dead ends: 5391
[2024-11-18 18:13:59,689 INFO  L226             Difference]: Without dead ends: 3722
[2024-11-18 18:13:59,693 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:13:59,694 INFO  L432           NwaCegarLoop]: 1194 mSDtfsCounter, 1245 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 5960 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:13:59,694 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 5960 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:13:59,697 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3722 states.
[2024-11-18 18:13:59,747 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 2769.
[2024-11-18 18:13:59,752 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2769 states, 2749 states have (on average 1.4732630047289923) internal successors, (4050), 2749 states have internal predecessors, (4050), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-18 18:13:59,756 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4086 transitions.
[2024-11-18 18:13:59,757 INFO  L78                 Accepts]: Start accepts. Automaton has 2769 states and 4086 transitions. Word has length 301
[2024-11-18 18:13:59,757 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:13:59,757 INFO  L471      AbstractCegarLoop]: Abstraction has 2769 states and 4086 transitions.
[2024-11-18 18:13:59,758 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:13:59,758 INFO  L276                IsEmpty]: Start isEmpty. Operand 2769 states and 4086 transitions.
[2024-11-18 18:13:59,762 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 303
[2024-11-18 18:13:59,763 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:13:59,763 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:13:59,763 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-18 18:13:59,763 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:13:59,764 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:13:59,764 INFO  L85        PathProgramCache]: Analyzing trace with hash -2019398581, now seen corresponding path program 1 times
[2024-11-18 18:13:59,764 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:13:59,764 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051376553]
[2024-11-18 18:13:59,764 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:13:59,764 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:13:59,987 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:00,522 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:00,522 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:00,522 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051376553]
[2024-11-18 18:14:00,522 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051376553] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:00,522 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:00,523 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:00,523 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989136047]
[2024-11-18 18:14:00,523 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:00,523 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:00,523 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:00,524 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:00,524 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:00,524 INFO  L87              Difference]: Start difference. First operand 2769 states and 4086 transitions. Second operand  has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 6 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:00,724 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:00,724 INFO  L93              Difference]: Finished difference Result 5462 states and 8085 transitions.
[2024-11-18 18:14:00,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:14:00,725 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 6 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 302
[2024-11-18 18:14:00,725 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:00,744 INFO  L225             Difference]: With dead ends: 5462
[2024-11-18 18:14:00,745 INFO  L226             Difference]: Without dead ends: 3722
[2024-11-18 18:14:00,749 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:14:00,749 INFO  L432           NwaCegarLoop]: 1805 mSDtfsCounter, 1238 mSDsluCounter, 6352 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 8157 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:00,750 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 8157 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:14:00,753 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3722 states.
[2024-11-18 18:14:00,815 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 2793.
[2024-11-18 18:14:00,820 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2793 states, 2773 states have (on average 1.4724125495852867) internal successors, (4083), 2773 states have internal predecessors, (4083), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-18 18:14:00,826 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 4119 transitions.
[2024-11-18 18:14:00,827 INFO  L78                 Accepts]: Start accepts. Automaton has 2793 states and 4119 transitions. Word has length 302
[2024-11-18 18:14:00,827 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:00,827 INFO  L471      AbstractCegarLoop]: Abstraction has 2793 states and 4119 transitions.
[2024-11-18 18:14:00,827 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 6 states have internal predecessors, (295), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:00,828 INFO  L276                IsEmpty]: Start isEmpty. Operand 2793 states and 4119 transitions.
[2024-11-18 18:14:00,833 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-18 18:14:00,833 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:00,834 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:00,834 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-18 18:14:00,834 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:00,834 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:00,835 INFO  L85        PathProgramCache]: Analyzing trace with hash 1285188647, now seen corresponding path program 1 times
[2024-11-18 18:14:00,835 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:00,835 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930445432]
[2024-11-18 18:14:00,835 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:00,835 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:01,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:01,847 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:01,848 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:01,848 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930445432]
[2024-11-18 18:14:01,848 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930445432] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:01,849 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:01,849 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:01,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672212932]
[2024-11-18 18:14:01,849 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:01,849 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:01,850 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:01,850 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:01,851 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:01,851 INFO  L87              Difference]: Start difference. First operand 2793 states and 4119 transitions. Second operand  has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:02,027 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:02,028 INFO  L93              Difference]: Finished difference Result 4608 states and 6810 transitions.
[2024-11-18 18:14:02,028 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:14:02,028 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 303
[2024-11-18 18:14:02,029 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:02,041 INFO  L225             Difference]: With dead ends: 4608
[2024-11-18 18:14:02,042 INFO  L226             Difference]: Without dead ends: 3223
[2024-11-18 18:14:02,045 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:14:02,045 INFO  L432           NwaCegarLoop]: 1170 mSDtfsCounter, 631 mSDsluCounter, 3801 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 4971 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:02,046 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 4971 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:14:02,050 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3223 states.
[2024-11-18 18:14:02,102 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 2809.
[2024-11-18 18:14:02,105 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2809 states, 2789 states have (on average 1.4711366081032629) internal successors, (4103), 2789 states have internal predecessors, (4103), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-18 18:14:02,112 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 4139 transitions.
[2024-11-18 18:14:02,112 INFO  L78                 Accepts]: Start accepts. Automaton has 2809 states and 4139 transitions. Word has length 303
[2024-11-18 18:14:02,113 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:02,113 INFO  L471      AbstractCegarLoop]: Abstraction has 2809 states and 4139 transitions.
[2024-11-18 18:14:02,113 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:02,113 INFO  L276                IsEmpty]: Start isEmpty. Operand 2809 states and 4139 transitions.
[2024-11-18 18:14:02,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-18 18:14:02,120 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:02,120 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:02,120 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-18 18:14:02,121 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:02,121 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:02,121 INFO  L85        PathProgramCache]: Analyzing trace with hash 620621797, now seen corresponding path program 1 times
[2024-11-18 18:14:02,121 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:02,121 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276065814]
[2024-11-18 18:14:02,122 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:02,122 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:02,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:03,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:03,333 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:03,333 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276065814]
[2024-11-18 18:14:03,333 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276065814] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:03,334 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:03,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 18:14:03,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539924605]
[2024-11-18 18:14:03,334 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:03,334 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 18:14:03,335 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:03,336 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 18:14:03,337 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:03,337 INFO  L87              Difference]: Start difference. First operand 2809 states and 4139 transitions. Second operand  has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:03,788 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:03,788 INFO  L93              Difference]: Finished difference Result 4218 states and 6220 transitions.
[2024-11-18 18:14:03,789 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:14:03,789 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 303
[2024-11-18 18:14:03,790 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:03,801 INFO  L225             Difference]: With dead ends: 4218
[2024-11-18 18:14:03,801 INFO  L226             Difference]: Without dead ends: 2821
[2024-11-18 18:14:03,805 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:14:03,805 INFO  L432           NwaCegarLoop]: 1566 mSDtfsCounter, 1504 mSDsluCounter, 4664 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 6230 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:03,805 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 6230 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-18 18:14:03,808 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2821 states.
[2024-11-18 18:14:03,843 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2815.
[2024-11-18 18:14:03,847 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2815 states, 2795 states have (on average 1.4701252236135958) internal successors, (4109), 2795 states have internal predecessors, (4109), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-18 18:14:03,853 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 4145 transitions.
[2024-11-18 18:14:03,854 INFO  L78                 Accepts]: Start accepts. Automaton has 2815 states and 4145 transitions. Word has length 303
[2024-11-18 18:14:03,854 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:03,854 INFO  L471      AbstractCegarLoop]: Abstraction has 2815 states and 4145 transitions.
[2024-11-18 18:14:03,855 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:03,855 INFO  L276                IsEmpty]: Start isEmpty. Operand 2815 states and 4145 transitions.
[2024-11-18 18:14:03,860 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-18 18:14:03,860 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:03,861 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:03,861 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-18 18:14:03,861 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:03,861 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:03,862 INFO  L85        PathProgramCache]: Analyzing trace with hash -582648249, now seen corresponding path program 1 times
[2024-11-18 18:14:03,862 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:03,862 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629053502]
[2024-11-18 18:14:03,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:03,862 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:04,111 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:05,061 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:05,062 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:05,062 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629053502]
[2024-11-18 18:14:05,062 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629053502] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:05,062 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:05,062 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 18:14:05,062 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880188669]
[2024-11-18 18:14:05,062 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:05,063 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 18:14:05,063 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:05,064 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 18:14:05,064 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:05,064 INFO  L87              Difference]: Start difference. First operand 2815 states and 4145 transitions. Second operand  has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:05,430 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:05,431 INFO  L93              Difference]: Finished difference Result 4980 states and 7350 transitions.
[2024-11-18 18:14:05,431 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:14:05,432 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 303
[2024-11-18 18:14:05,432 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:05,438 INFO  L225             Difference]: With dead ends: 4980
[2024-11-18 18:14:05,438 INFO  L226             Difference]: Without dead ends: 2815
[2024-11-18 18:14:05,442 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:14:05,444 INFO  L432           NwaCegarLoop]: 1090 mSDtfsCounter, 2059 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 4238 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:05,444 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 4238 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 18:14:05,447 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2815 states.
[2024-11-18 18:14:05,488 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815.
[2024-11-18 18:14:05,492 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2815 states, 2795 states have (on average 1.467978533094812) internal successors, (4103), 2795 states have internal predecessors, (4103), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-18 18:14:05,498 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 4139 transitions.
[2024-11-18 18:14:05,499 INFO  L78                 Accepts]: Start accepts. Automaton has 2815 states and 4139 transitions. Word has length 303
[2024-11-18 18:14:05,500 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:05,500 INFO  L471      AbstractCegarLoop]: Abstraction has 2815 states and 4139 transitions.
[2024-11-18 18:14:05,501 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:05,501 INFO  L276                IsEmpty]: Start isEmpty. Operand 2815 states and 4139 transitions.
[2024-11-18 18:14:05,507 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-18 18:14:05,507 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:05,507 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:05,508 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-18 18:14:05,508 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:05,508 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:05,508 INFO  L85        PathProgramCache]: Analyzing trace with hash -1491624008, now seen corresponding path program 1 times
[2024-11-18 18:14:05,509 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:05,509 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941312898]
[2024-11-18 18:14:05,509 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:05,509 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:05,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:06,327 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:06,328 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:06,328 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941312898]
[2024-11-18 18:14:06,328 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941312898] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:06,328 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:06,328 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:06,328 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35545626]
[2024-11-18 18:14:06,329 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:06,331 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:06,331 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:06,331 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:06,332 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:06,332 INFO  L87              Difference]: Start difference. First operand 2815 states and 4139 transitions. Second operand  has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:06,574 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:06,574 INFO  L93              Difference]: Finished difference Result 5498 states and 8113 transitions.
[2024-11-18 18:14:06,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:14:06,576 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 303
[2024-11-18 18:14:06,576 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:06,585 INFO  L225             Difference]: With dead ends: 5498
[2024-11-18 18:14:06,585 INFO  L226             Difference]: Without dead ends: 3755
[2024-11-18 18:14:06,589 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:14:06,590 INFO  L432           NwaCegarLoop]: 2080 mSDtfsCounter, 1231 mSDsluCounter, 7109 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 9189 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:06,590 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 9189 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:14:06,593 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3755 states.
[2024-11-18 18:14:06,628 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 2839.
[2024-11-18 18:14:06,631 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2839 states, 2819 states have (on average 1.4671869457254345) internal successors, (4136), 2819 states have internal predecessors, (4136), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-18 18:14:06,636 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2839 states to 2839 states and 4172 transitions.
[2024-11-18 18:14:06,637 INFO  L78                 Accepts]: Start accepts. Automaton has 2839 states and 4172 transitions. Word has length 303
[2024-11-18 18:14:06,637 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:06,637 INFO  L471      AbstractCegarLoop]: Abstraction has 2839 states and 4172 transitions.
[2024-11-18 18:14:06,638 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:06,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 2839 states and 4172 transitions.
[2024-11-18 18:14:06,643 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-18 18:14:06,643 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:06,643 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:06,643 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-18 18:14:06,644 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:06,644 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:06,644 INFO  L85        PathProgramCache]: Analyzing trace with hash 1715112680, now seen corresponding path program 1 times
[2024-11-18 18:14:06,644 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:06,644 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079992200]
[2024-11-18 18:14:06,645 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:06,645 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:06,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:07,687 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:07,688 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:07,688 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079992200]
[2024-11-18 18:14:07,689 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079992200] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:07,689 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:07,689 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-18 18:14:07,689 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311783941]
[2024-11-18 18:14:07,689 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:07,690 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-18 18:14:07,690 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:07,693 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-18 18:14:07,693 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:14:07,693 INFO  L87              Difference]: Start difference. First operand 2839 states and 4172 transitions. Second operand  has 9 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:14:08,353 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:08,354 INFO  L93              Difference]: Finished difference Result 7429 states and 10939 transitions.
[2024-11-18 18:14:08,355 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-18 18:14:08,356 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 304
[2024-11-18 18:14:08,356 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:08,368 INFO  L225             Difference]: With dead ends: 7429
[2024-11-18 18:14:08,369 INFO  L226             Difference]: Without dead ends: 5288
[2024-11-18 18:14:08,374 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2024-11-18 18:14:08,375 INFO  L432           NwaCegarLoop]: 2000 mSDtfsCounter, 2405 mSDsluCounter, 8932 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 10932 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:08,376 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 10932 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-18 18:14:08,384 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5288 states.
[2024-11-18 18:14:08,432 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5288 to 3301.
[2024-11-18 18:14:08,436 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3301 states, 3275 states have (on average 1.4598473282442748) internal successors, (4781), 3275 states have internal predecessors, (4781), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-18 18:14:08,443 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3301 states to 3301 states and 4829 transitions.
[2024-11-18 18:14:08,444 INFO  L78                 Accepts]: Start accepts. Automaton has 3301 states and 4829 transitions. Word has length 304
[2024-11-18 18:14:08,444 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:08,445 INFO  L471      AbstractCegarLoop]: Abstraction has 3301 states and 4829 transitions.
[2024-11-18 18:14:08,445 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:14:08,445 INFO  L276                IsEmpty]: Start isEmpty. Operand 3301 states and 4829 transitions.
[2024-11-18 18:14:08,451 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-18 18:14:08,451 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:08,451 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:08,451 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-18 18:14:08,452 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:08,452 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:08,452 INFO  L85        PathProgramCache]: Analyzing trace with hash -528039757, now seen corresponding path program 1 times
[2024-11-18 18:14:08,452 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:08,453 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967259919]
[2024-11-18 18:14:08,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:08,453 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:08,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:09,326 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:09,327 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:09,327 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967259919]
[2024-11-18 18:14:09,327 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967259919] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:09,327 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:09,327 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:09,327 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504293068]
[2024-11-18 18:14:09,327 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:09,328 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:09,328 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:09,329 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:09,329 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:09,331 INFO  L87              Difference]: Start difference. First operand 3301 states and 4829 transitions. Second operand  has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:09,561 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:09,561 INFO  L93              Difference]: Finished difference Result 6106 states and 8973 transitions.
[2024-11-18 18:14:09,562 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:14:09,562 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 304
[2024-11-18 18:14:09,563 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:09,572 INFO  L225             Difference]: With dead ends: 6106
[2024-11-18 18:14:09,572 INFO  L226             Difference]: Without dead ends: 4217
[2024-11-18 18:14:09,576 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:14:09,577 INFO  L432           NwaCegarLoop]: 1972 mSDtfsCounter, 1224 mSDsluCounter, 6859 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 8831 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:09,577 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 8831 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:14:09,581 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4217 states.
[2024-11-18 18:14:09,645 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4217 to 3325.
[2024-11-18 18:14:09,650 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3325 states, 3299 states have (on average 1.4592300697180964) internal successors, (4814), 3299 states have internal predecessors, (4814), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-18 18:14:09,658 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 4862 transitions.
[2024-11-18 18:14:09,659 INFO  L78                 Accepts]: Start accepts. Automaton has 3325 states and 4862 transitions. Word has length 304
[2024-11-18 18:14:09,659 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:09,659 INFO  L471      AbstractCegarLoop]: Abstraction has 3325 states and 4862 transitions.
[2024-11-18 18:14:09,660 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:09,660 INFO  L276                IsEmpty]: Start isEmpty. Operand 3325 states and 4862 transitions.
[2024-11-18 18:14:09,669 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 306
[2024-11-18 18:14:09,669 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:09,670 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:09,670 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-11-18 18:14:09,670 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:09,670 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:09,671 INFO  L85        PathProgramCache]: Analyzing trace with hash 618318709, now seen corresponding path program 1 times
[2024-11-18 18:14:09,671 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:09,671 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215983488]
[2024-11-18 18:14:09,671 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:09,672 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:09,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:10,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:10,681 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:10,681 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215983488]
[2024-11-18 18:14:10,681 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215983488] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:10,681 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:10,681 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:10,682 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229053323]
[2024-11-18 18:14:10,682 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:10,682 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:10,682 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:10,683 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:10,683 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:10,684 INFO  L87              Difference]: Start difference. First operand 3325 states and 4862 transitions. Second operand  has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:11,000 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:11,000 INFO  L93              Difference]: Finished difference Result 5777 states and 8454 transitions.
[2024-11-18 18:14:11,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:14:11,001 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 305
[2024-11-18 18:14:11,001 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:11,010 INFO  L225             Difference]: With dead ends: 5777
[2024-11-18 18:14:11,011 INFO  L226             Difference]: Without dead ends: 4174
[2024-11-18 18:14:11,014 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:11,015 INFO  L432           NwaCegarLoop]: 1121 mSDtfsCounter, 1770 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 4411 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:11,015 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1772 Valid, 4411 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 18:14:11,020 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4174 states.
[2024-11-18 18:14:11,071 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4174 to 4128.
[2024-11-18 18:14:11,077 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4128 states, 4094 states have (on average 1.4572545188080117) internal successors, (5966), 4094 states have internal predecessors, (5966), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-18 18:14:11,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4128 states to 4128 states and 6030 transitions.
[2024-11-18 18:14:11,086 INFO  L78                 Accepts]: Start accepts. Automaton has 4128 states and 6030 transitions. Word has length 305
[2024-11-18 18:14:11,086 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:11,086 INFO  L471      AbstractCegarLoop]: Abstraction has 4128 states and 6030 transitions.
[2024-11-18 18:14:11,087 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:11,087 INFO  L276                IsEmpty]: Start isEmpty. Operand 4128 states and 6030 transitions.
[2024-11-18 18:14:11,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 307
[2024-11-18 18:14:11,119 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:11,119 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:11,119 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-11-18 18:14:11,120 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:11,120 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:11,120 INFO  L85        PathProgramCache]: Analyzing trace with hash 818393539, now seen corresponding path program 1 times
[2024-11-18 18:14:11,120 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:11,121 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563304634]
[2024-11-18 18:14:11,121 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:11,121 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:11,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:12,092 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:12,093 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:12,093 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563304634]
[2024-11-18 18:14:12,093 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563304634] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:12,093 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:12,093 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 18:14:12,093 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989445844]
[2024-11-18 18:14:12,095 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:12,095 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 18:14:12,096 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:12,096 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 18:14:12,096 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:12,097 INFO  L87              Difference]: Start difference. First operand 4128 states and 6030 transitions. Second operand  has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 7 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:12,466 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:12,466 INFO  L93              Difference]: Finished difference Result 6723 states and 9860 transitions.
[2024-11-18 18:14:12,467 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:14:12,467 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 7 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 306
[2024-11-18 18:14:12,467 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:12,475 INFO  L225             Difference]: With dead ends: 6723
[2024-11-18 18:14:12,475 INFO  L226             Difference]: Without dead ends: 4128
[2024-11-18 18:14:12,479 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:14:12,479 INFO  L432           NwaCegarLoop]: 1089 mSDtfsCounter, 1446 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 4241 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:12,480 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 4241 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 18:14:12,484 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4128 states.
[2024-11-18 18:14:12,531 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 4128.
[2024-11-18 18:14:12,536 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4128 states, 4094 states have (on average 1.4553004396678066) internal successors, (5958), 4094 states have internal predecessors, (5958), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-18 18:14:12,544 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4128 states to 4128 states and 6022 transitions.
[2024-11-18 18:14:12,544 INFO  L78                 Accepts]: Start accepts. Automaton has 4128 states and 6022 transitions. Word has length 306
[2024-11-18 18:14:12,545 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:12,545 INFO  L471      AbstractCegarLoop]: Abstraction has 4128 states and 6022 transitions.
[2024-11-18 18:14:12,548 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 7 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:12,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 4128 states and 6022 transitions.
[2024-11-18 18:14:12,555 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 307
[2024-11-18 18:14:12,555 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:12,555 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:12,555 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-11-18 18:14:12,555 INFO  L396      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:12,556 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:12,556 INFO  L85        PathProgramCache]: Analyzing trace with hash 252464498, now seen corresponding path program 1 times
[2024-11-18 18:14:12,556 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:12,556 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117731057]
[2024-11-18 18:14:12,556 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:12,557 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:12,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:13,276 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:13,276 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:13,277 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117731057]
[2024-11-18 18:14:13,277 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117731057] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:13,277 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:13,277 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:13,277 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527992823]
[2024-11-18 18:14:13,277 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:13,278 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:13,278 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:13,279 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:13,279 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:13,280 INFO  L87              Difference]: Start difference. First operand 4128 states and 6022 transitions. Second operand  has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:13,469 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:13,470 INFO  L93              Difference]: Finished difference Result 7203 states and 10564 transitions.
[2024-11-18 18:14:13,470 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:14:13,471 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 306
[2024-11-18 18:14:13,471 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:13,479 INFO  L225             Difference]: With dead ends: 7203
[2024-11-18 18:14:13,480 INFO  L226             Difference]: Without dead ends: 5176
[2024-11-18 18:14:13,483 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:14:13,483 INFO  L432           NwaCegarLoop]: 2027 mSDtfsCounter, 1217 mSDsluCounter, 6972 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 8999 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:13,485 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 8999 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:14:13,488 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5176 states.
[2024-11-18 18:14:13,540 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5176 to 4160.
[2024-11-18 18:14:13,544 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4160 states, 4126 states have (on average 1.4546776539020843) internal successors, (6002), 4126 states have internal predecessors, (6002), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-18 18:14:13,550 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4160 states to 4160 states and 6066 transitions.
[2024-11-18 18:14:13,551 INFO  L78                 Accepts]: Start accepts. Automaton has 4160 states and 6066 transitions. Word has length 306
[2024-11-18 18:14:13,551 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:13,551 INFO  L471      AbstractCegarLoop]: Abstraction has 4160 states and 6066 transitions.
[2024-11-18 18:14:13,551 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:13,552 INFO  L276                IsEmpty]: Start isEmpty. Operand 4160 states and 6066 transitions.
[2024-11-18 18:14:13,560 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 308
[2024-11-18 18:14:13,560 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:13,561 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:13,561 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-11-18 18:14:13,561 INFO  L396      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:13,561 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:13,561 INFO  L85        PathProgramCache]: Analyzing trace with hash -1709887396, now seen corresponding path program 1 times
[2024-11-18 18:14:13,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:13,562 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43220762]
[2024-11-18 18:14:13,562 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:13,562 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:13,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:14,595 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:14,596 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:14,596 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43220762]
[2024-11-18 18:14:14,596 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43220762] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:14,596 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:14,596 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-18 18:14:14,596 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813046157]
[2024-11-18 18:14:14,596 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:14,597 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-18 18:14:14,597 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:14,598 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-18 18:14:14,598 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:14:14,598 INFO  L87              Difference]: Start difference. First operand 4160 states and 6066 transitions. Second operand  has 9 states, 9 states have (on average 33.333333333333336) internal successors, (300), 9 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:14,930 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:14,930 INFO  L93              Difference]: Finished difference Result 6145 states and 8995 transitions.
[2024-11-18 18:14:14,930 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-18 18:14:14,931 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 33.333333333333336) internal successors, (300), 9 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 307
[2024-11-18 18:14:14,931 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:14,939 INFO  L225             Difference]: With dead ends: 6145
[2024-11-18 18:14:14,939 INFO  L226             Difference]: Without dead ends: 4582
[2024-11-18 18:14:14,943 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2024-11-18 18:14:14,943 INFO  L432           NwaCegarLoop]: 1157 mSDtfsCounter, 2416 mSDsluCounter, 6040 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 7197 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:14,943 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2418 Valid, 7197 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-18 18:14:14,946 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4582 states.
[2024-11-18 18:14:15,000 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 4166.
[2024-11-18 18:14:15,004 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4166 states, 4132 states have (on average 1.4545014520813166) internal successors, (6010), 4132 states have internal predecessors, (6010), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-18 18:14:15,102 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4166 states to 4166 states and 6074 transitions.
[2024-11-18 18:14:15,103 INFO  L78                 Accepts]: Start accepts. Automaton has 4166 states and 6074 transitions. Word has length 307
[2024-11-18 18:14:15,103 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:15,104 INFO  L471      AbstractCegarLoop]: Abstraction has 4166 states and 6074 transitions.
[2024-11-18 18:14:15,104 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 33.333333333333336) internal successors, (300), 9 states have internal predecessors, (300), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:15,104 INFO  L276                IsEmpty]: Start isEmpty. Operand 4166 states and 6074 transitions.
[2024-11-18 18:14:15,109 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 309
[2024-11-18 18:14:15,109 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:15,110 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:15,110 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-11-18 18:14:15,110 INFO  L396      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:15,110 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:15,111 INFO  L85        PathProgramCache]: Analyzing trace with hash 345227459, now seen corresponding path program 1 times
[2024-11-18 18:14:15,111 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:15,111 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725954395]
[2024-11-18 18:14:15,111 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:15,111 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:15,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:15,823 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:15,824 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:15,824 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725954395]
[2024-11-18 18:14:15,824 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725954395] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:15,824 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:15,824 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:15,824 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832125541]
[2024-11-18 18:14:15,824 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:15,825 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:15,825 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:15,826 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:15,826 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:15,826 INFO  L87              Difference]: Start difference. First operand 4166 states and 6074 transitions. Second operand  has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:15,993 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:15,993 INFO  L93              Difference]: Finished difference Result 6141 states and 8987 transitions.
[2024-11-18 18:14:15,994 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:14:15,994 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 308
[2024-11-18 18:14:15,994 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:16,003 INFO  L225             Difference]: With dead ends: 6141
[2024-11-18 18:14:16,004 INFO  L226             Difference]: Without dead ends: 4578
[2024-11-18 18:14:16,008 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:16,009 INFO  L432           NwaCegarLoop]: 1168 mSDtfsCounter, 609 mSDsluCounter, 4667 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 5835 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:16,010 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 5835 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:14:16,013 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4578 states.
[2024-11-18 18:14:16,064 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 4212.
[2024-11-18 18:14:16,068 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4212 states, 4178 states have (on average 1.4542843465773097) internal successors, (6076), 4178 states have internal predecessors, (6076), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-18 18:14:16,074 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4212 states to 4212 states and 6140 transitions.
[2024-11-18 18:14:16,075 INFO  L78                 Accepts]: Start accepts. Automaton has 4212 states and 6140 transitions. Word has length 308
[2024-11-18 18:14:16,075 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:16,076 INFO  L471      AbstractCegarLoop]: Abstraction has 4212 states and 6140 transitions.
[2024-11-18 18:14:16,076 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:16,076 INFO  L276                IsEmpty]: Start isEmpty. Operand 4212 states and 6140 transitions.
[2024-11-18 18:14:16,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 309
[2024-11-18 18:14:16,081 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:16,082 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:16,082 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-11-18 18:14:16,082 INFO  L396      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:16,082 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:16,083 INFO  L85        PathProgramCache]: Analyzing trace with hash -126520231, now seen corresponding path program 1 times
[2024-11-18 18:14:16,083 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:16,083 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922686343]
[2024-11-18 18:14:16,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:16,083 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:16,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:17,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:17,069 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:17,069 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922686343]
[2024-11-18 18:14:17,069 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922686343] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:17,070 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:17,070 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 18:14:17,070 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964994844]
[2024-11-18 18:14:17,070 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:17,070 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 18:14:17,070 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:17,071 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 18:14:17,072 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:17,072 INFO  L87              Difference]: Start difference. First operand 4212 states and 6140 transitions. Second operand  has 7 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:17,420 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:17,421 INFO  L93              Difference]: Finished difference Result 6819 states and 9981 transitions.
[2024-11-18 18:14:17,421 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:14:17,422 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 308
[2024-11-18 18:14:17,422 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:17,428 INFO  L225             Difference]: With dead ends: 6819
[2024-11-18 18:14:17,429 INFO  L226             Difference]: Without dead ends: 4212
[2024-11-18 18:14:17,433 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:14:17,433 INFO  L432           NwaCegarLoop]: 1088 mSDtfsCounter, 1435 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:17,434 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 4250 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 18:14:17,436 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4212 states.
[2024-11-18 18:14:17,481 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4212 to 4212.
[2024-11-18 18:14:17,486 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4212 states, 4178 states have (on average 1.4523695548109143) internal successors, (6068), 4178 states have internal predecessors, (6068), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-18 18:14:17,492 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4212 states to 4212 states and 6132 transitions.
[2024-11-18 18:14:17,493 INFO  L78                 Accepts]: Start accepts. Automaton has 4212 states and 6132 transitions. Word has length 308
[2024-11-18 18:14:17,493 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:17,493 INFO  L471      AbstractCegarLoop]: Abstraction has 4212 states and 6132 transitions.
[2024-11-18 18:14:17,494 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:17,494 INFO  L276                IsEmpty]: Start isEmpty. Operand 4212 states and 6132 transitions.
[2024-11-18 18:14:17,499 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 309
[2024-11-18 18:14:17,499 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:17,499 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:17,500 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-11-18 18:14:17,500 INFO  L396      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:17,500 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:17,501 INFO  L85        PathProgramCache]: Analyzing trace with hash 893402660, now seen corresponding path program 1 times
[2024-11-18 18:14:17,501 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:17,501 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780116208]
[2024-11-18 18:14:17,501 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:17,501 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:17,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:18,184 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:18,184 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:18,185 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780116208]
[2024-11-18 18:14:18,185 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780116208] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:18,185 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:18,185 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:18,186 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135062741]
[2024-11-18 18:14:18,186 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:18,186 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:18,186 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:18,187 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:18,188 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:18,188 INFO  L87              Difference]: Start difference. First operand 4212 states and 6132 transitions. Second operand  has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:18,356 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:18,356 INFO  L93              Difference]: Finished difference Result 7291 states and 10673 transitions.
[2024-11-18 18:14:18,356 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:14:18,357 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 308
[2024-11-18 18:14:18,357 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:18,364 INFO  L225             Difference]: With dead ends: 7291
[2024-11-18 18:14:18,365 INFO  L226             Difference]: Without dead ends: 5254
[2024-11-18 18:14:18,369 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:14:18,370 INFO  L432           NwaCegarLoop]: 2075 mSDtfsCounter, 1210 mSDsluCounter, 7095 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 9170 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:18,370 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 9170 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:14:18,374 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5254 states.
[2024-11-18 18:14:18,421 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5254 to 4244.
[2024-11-18 18:14:18,425 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4244 states, 4210 states have (on average 1.4517814726840854) internal successors, (6112), 4210 states have internal predecessors, (6112), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-18 18:14:18,431 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4244 states to 4244 states and 6176 transitions.
[2024-11-18 18:14:18,432 INFO  L78                 Accepts]: Start accepts. Automaton has 4244 states and 6176 transitions. Word has length 308
[2024-11-18 18:14:18,432 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:18,432 INFO  L471      AbstractCegarLoop]: Abstraction has 4244 states and 6176 transitions.
[2024-11-18 18:14:18,433 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:18,433 INFO  L276                IsEmpty]: Start isEmpty. Operand 4244 states and 6176 transitions.
[2024-11-18 18:14:18,438 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 310
[2024-11-18 18:14:18,438 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:18,438 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:18,438 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2024-11-18 18:14:18,438 INFO  L396      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:18,439 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:18,439 INFO  L85        PathProgramCache]: Analyzing trace with hash -918442202, now seen corresponding path program 1 times
[2024-11-18 18:14:18,439 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:18,439 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873957080]
[2024-11-18 18:14:18,439 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:18,439 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:18,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:20,002 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:20,002 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:20,003 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873957080]
[2024-11-18 18:14:20,003 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873957080] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:20,003 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:20,003 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-18 18:14:20,003 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895839728]
[2024-11-18 18:14:20,003 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:20,004 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-18 18:14:20,004 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:20,004 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-18 18:14:20,005 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110
[2024-11-18 18:14:20,005 INFO  L87              Difference]: Start difference. First operand 4244 states and 6176 transitions. Second operand  has 11 states, 11 states have (on average 27.454545454545453) internal successors, (302), 11 states have internal predecessors, (302), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:14:20,745 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:20,745 INFO  L93              Difference]: Finished difference Result 9693 states and 14159 transitions.
[2024-11-18 18:14:20,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-18 18:14:20,746 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 27.454545454545453) internal successors, (302), 11 states have internal predecessors, (302), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 309
[2024-11-18 18:14:20,746 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:20,754 INFO  L225             Difference]: With dead ends: 9693
[2024-11-18 18:14:20,754 INFO  L226             Difference]: Without dead ends: 6856
[2024-11-18 18:14:20,760 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272
[2024-11-18 18:14:20,761 INFO  L432           NwaCegarLoop]: 1975 mSDtfsCounter, 3386 mSDsluCounter, 12748 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3387 SdHoareTripleChecker+Valid, 14723 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:20,761 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3387 Valid, 14723 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-18 18:14:20,766 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6856 states.
[2024-11-18 18:14:20,828 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6856 to 4548.
[2024-11-18 18:14:20,832 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4548 states, 4510 states have (on average 1.4483370288248336) internal successors, (6532), 4510 states have internal predecessors, (6532), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:20,841 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 6604 transitions.
[2024-11-18 18:14:20,841 INFO  L78                 Accepts]: Start accepts. Automaton has 4548 states and 6604 transitions. Word has length 309
[2024-11-18 18:14:20,841 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:20,841 INFO  L471      AbstractCegarLoop]: Abstraction has 4548 states and 6604 transitions.
[2024-11-18 18:14:20,842 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 27.454545454545453) internal successors, (302), 11 states have internal predecessors, (302), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-18 18:14:20,842 INFO  L276                IsEmpty]: Start isEmpty. Operand 4548 states and 6604 transitions.
[2024-11-18 18:14:20,846 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 310
[2024-11-18 18:14:20,847 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:20,847 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:20,847 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2024-11-18 18:14:20,847 INFO  L396      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:20,848 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:20,848 INFO  L85        PathProgramCache]: Analyzing trace with hash 1229438051, now seen corresponding path program 1 times
[2024-11-18 18:14:20,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:20,848 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593361804]
[2024-11-18 18:14:20,848 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:20,848 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:21,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:21,794 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:21,794 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:21,794 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593361804]
[2024-11-18 18:14:21,794 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593361804] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:21,794 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:21,794 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 18:14:21,794 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669943449]
[2024-11-18 18:14:21,794 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:21,795 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 18:14:21,795 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:21,796 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 18:14:21,796 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:21,796 INFO  L87              Difference]: Start difference. First operand 4548 states and 6604 transitions. Second operand  has 7 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:22,105 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:22,105 INFO  L93              Difference]: Finished difference Result 7335 states and 10693 transitions.
[2024-11-18 18:14:22,106 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:14:22,106 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 309
[2024-11-18 18:14:22,106 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:22,111 INFO  L225             Difference]: With dead ends: 7335
[2024-11-18 18:14:22,111 INFO  L226             Difference]: Without dead ends: 4548
[2024-11-18 18:14:22,115 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:14:22,115 INFO  L432           NwaCegarLoop]: 1087 mSDtfsCounter, 1442 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 4241 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:22,116 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 4241 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-18 18:14:22,119 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4548 states.
[2024-11-18 18:14:22,181 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4548 to 4492.
[2024-11-18 18:14:22,187 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4492 states, 4454 states have (on average 1.4485855410866637) internal successors, (6452), 4454 states have internal predecessors, (6452), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:22,198 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 6524 transitions.
[2024-11-18 18:14:22,200 INFO  L78                 Accepts]: Start accepts. Automaton has 4492 states and 6524 transitions. Word has length 309
[2024-11-18 18:14:22,200 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:22,200 INFO  L471      AbstractCegarLoop]: Abstraction has 4492 states and 6524 transitions.
[2024-11-18 18:14:22,200 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:22,200 INFO  L276                IsEmpty]: Start isEmpty. Operand 4492 states and 6524 transitions.
[2024-11-18 18:14:22,205 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2024-11-18 18:14:22,205 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:22,205 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:22,206 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2024-11-18 18:14:22,206 INFO  L396      AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:22,206 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:22,206 INFO  L85        PathProgramCache]: Analyzing trace with hash -1742786112, now seen corresponding path program 1 times
[2024-11-18 18:14:22,206 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:22,207 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725424441]
[2024-11-18 18:14:22,207 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:22,207 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:22,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:22,683 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:22,684 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:22,684 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725424441]
[2024-11-18 18:14:22,684 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725424441] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:22,684 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:22,684 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 18:14:22,685 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765848162]
[2024-11-18 18:14:22,685 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:22,685 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 18:14:22,685 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:22,686 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 18:14:22,686 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 18:14:22,686 INFO  L87              Difference]: Start difference. First operand 4492 states and 6524 transitions. Second operand  has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:22,757 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:22,758 INFO  L93              Difference]: Finished difference Result 7403 states and 10776 transitions.
[2024-11-18 18:14:22,758 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 18:14:22,759 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 310
[2024-11-18 18:14:22,759 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:22,766 INFO  L225             Difference]: With dead ends: 7403
[2024-11-18 18:14:22,766 INFO  L226             Difference]: Without dead ends: 4540
[2024-11-18 18:14:22,772 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 18:14:22,773 INFO  L432           NwaCegarLoop]: 1195 mSDtfsCounter, 2 mSDsluCounter, 3570 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4765 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:22,774 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4765 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 18:14:22,777 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4540 states.
[2024-11-18 18:14:22,827 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4540 to 4528.
[2024-11-18 18:14:22,831 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4528 states, 4490 states have (on average 1.444988864142539) internal successors, (6488), 4490 states have internal predecessors, (6488), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:22,839 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 6560 transitions.
[2024-11-18 18:14:22,840 INFO  L78                 Accepts]: Start accepts. Automaton has 4528 states and 6560 transitions. Word has length 310
[2024-11-18 18:14:22,840 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:22,841 INFO  L471      AbstractCegarLoop]: Abstraction has 4528 states and 6560 transitions.
[2024-11-18 18:14:22,841 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:22,841 INFO  L276                IsEmpty]: Start isEmpty. Operand 4528 states and 6560 transitions.
[2024-11-18 18:14:22,846 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2024-11-18 18:14:22,846 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:22,847 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:22,847 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2024-11-18 18:14:22,847 INFO  L396      AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:22,847 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:22,848 INFO  L85        PathProgramCache]: Analyzing trace with hash -147355996, now seen corresponding path program 1 times
[2024-11-18 18:14:22,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:22,848 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211178668]
[2024-11-18 18:14:22,848 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:22,848 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:23,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:23,322 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:23,322 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:23,323 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211178668]
[2024-11-18 18:14:23,323 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211178668] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:23,323 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:23,323 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 18:14:23,323 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339021764]
[2024-11-18 18:14:23,323 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:23,325 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 18:14:23,325 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:23,326 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 18:14:23,326 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:14:23,327 INFO  L87              Difference]: Start difference. First operand 4528 states and 6560 transitions. Second operand  has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:23,375 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:23,375 INFO  L93              Difference]: Finished difference Result 7580 states and 10992 transitions.
[2024-11-18 18:14:23,376 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 18:14:23,376 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 310
[2024-11-18 18:14:23,376 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:23,381 INFO  L225             Difference]: With dead ends: 7580
[2024-11-18 18:14:23,381 INFO  L226             Difference]: Without dead ends: 4600
[2024-11-18 18:14:23,384 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:14:23,385 INFO  L432           NwaCegarLoop]: 1195 mSDtfsCounter, 0 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:23,385 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3577 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 18:14:23,388 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4600 states.
[2024-11-18 18:14:23,437 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4600 to 4600.
[2024-11-18 18:14:23,442 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4600 states, 4562 states have (on average 1.437965804471723) internal successors, (6560), 4562 states have internal predecessors, (6560), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:23,448 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6632 transitions.
[2024-11-18 18:14:23,449 INFO  L78                 Accepts]: Start accepts. Automaton has 4600 states and 6632 transitions. Word has length 310
[2024-11-18 18:14:23,449 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:23,449 INFO  L471      AbstractCegarLoop]: Abstraction has 4600 states and 6632 transitions.
[2024-11-18 18:14:23,450 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:23,450 INFO  L276                IsEmpty]: Start isEmpty. Operand 4600 states and 6632 transitions.
[2024-11-18 18:14:23,454 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2024-11-18 18:14:23,455 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:23,455 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:23,455 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2024-11-18 18:14:23,455 INFO  L396      AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:23,456 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:23,456 INFO  L85        PathProgramCache]: Analyzing trace with hash -702523108, now seen corresponding path program 1 times
[2024-11-18 18:14:23,456 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:23,456 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972787934]
[2024-11-18 18:14:23,456 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:23,457 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:23,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:24,389 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:24,389 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:24,389 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972787934]
[2024-11-18 18:14:24,389 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972787934] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:24,389 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:24,389 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 18:14:24,390 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312285509]
[2024-11-18 18:14:24,390 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:24,390 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 18:14:24,390 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:24,391 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 18:14:24,391 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:24,392 INFO  L87              Difference]: Start difference. First operand 4600 states and 6632 transitions. Second operand  has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:24,688 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:24,688 INFO  L93              Difference]: Finished difference Result 7256 states and 10524 transitions.
[2024-11-18 18:14:24,688 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:14:24,689 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 310
[2024-11-18 18:14:24,689 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:24,694 INFO  L225             Difference]: With dead ends: 7256
[2024-11-18 18:14:24,694 INFO  L226             Difference]: Without dead ends: 4600
[2024-11-18 18:14:24,697 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:14:24,698 INFO  L432           NwaCegarLoop]: 1086 mSDtfsCounter, 2311 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 4220 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:24,698 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2311 Valid, 4220 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-18 18:14:24,700 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4600 states.
[2024-11-18 18:14:24,749 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4600 to 4600.
[2024-11-18 18:14:24,754 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4600 states, 4562 states have (on average 1.4362121876370013) internal successors, (6552), 4562 states have internal predecessors, (6552), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:24,761 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6624 transitions.
[2024-11-18 18:14:24,762 INFO  L78                 Accepts]: Start accepts. Automaton has 4600 states and 6624 transitions. Word has length 310
[2024-11-18 18:14:24,762 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:24,762 INFO  L471      AbstractCegarLoop]: Abstraction has 4600 states and 6624 transitions.
[2024-11-18 18:14:24,762 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:24,763 INFO  L276                IsEmpty]: Start isEmpty. Operand 4600 states and 6624 transitions.
[2024-11-18 18:14:24,767 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2024-11-18 18:14:24,768 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:24,768 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:24,768 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2024-11-18 18:14:24,769 INFO  L396      AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:24,769 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:24,769 INFO  L85        PathProgramCache]: Analyzing trace with hash -39726169, now seen corresponding path program 1 times
[2024-11-18 18:14:24,770 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:24,770 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352316873]
[2024-11-18 18:14:24,770 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:24,770 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:24,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:25,340 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:25,341 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:25,341 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352316873]
[2024-11-18 18:14:25,341 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352316873] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:25,341 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:25,341 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:25,342 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25345173]
[2024-11-18 18:14:25,342 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:25,342 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:25,342 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:25,343 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:25,343 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:25,343 INFO  L87              Difference]: Start difference. First operand 4600 states and 6624 transitions. Second operand  has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:25,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:25,495 INFO  L93              Difference]: Finished difference Result 7720 states and 11204 transitions.
[2024-11-18 18:14:25,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:14:25,496 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 310
[2024-11-18 18:14:25,496 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:25,501 INFO  L225             Difference]: With dead ends: 7720
[2024-11-18 18:14:25,501 INFO  L226             Difference]: Without dead ends: 5610
[2024-11-18 18:14:25,505 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-18 18:14:25,505 INFO  L432           NwaCegarLoop]: 2028 mSDtfsCounter, 1202 mSDsluCounter, 6997 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 9025 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:25,505 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 9025 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:14:25,509 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5610 states.
[2024-11-18 18:14:25,557 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 4632.
[2024-11-18 18:14:25,561 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4632 states, 4594 states have (on average 1.435785807575098) internal successors, (6596), 4594 states have internal predecessors, (6596), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:25,567 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 6668 transitions.
[2024-11-18 18:14:25,568 INFO  L78                 Accepts]: Start accepts. Automaton has 4632 states and 6668 transitions. Word has length 310
[2024-11-18 18:14:25,568 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:25,569 INFO  L471      AbstractCegarLoop]: Abstraction has 4632 states and 6668 transitions.
[2024-11-18 18:14:25,569 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:25,569 INFO  L276                IsEmpty]: Start isEmpty. Operand 4632 states and 6668 transitions.
[2024-11-18 18:14:25,574 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 312
[2024-11-18 18:14:25,574 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:25,575 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:25,575 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2024-11-18 18:14:25,575 INFO  L396      AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:25,575 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:25,576 INFO  L85        PathProgramCache]: Analyzing trace with hash 188380497, now seen corresponding path program 1 times
[2024-11-18 18:14:25,576 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:25,576 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058199726]
[2024-11-18 18:14:25,576 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:25,576 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:25,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:26,390 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:26,390 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:26,390 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058199726]
[2024-11-18 18:14:26,391 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058199726] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:26,391 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:26,391 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 18:14:26,391 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912614582]
[2024-11-18 18:14:26,391 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:26,391 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 18:14:26,392 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:26,393 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 18:14:26,393 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:26,393 INFO  L87              Difference]: Start difference. First operand 4632 states and 6668 transitions. Second operand  has 7 states, 7 states have (on average 43.42857142857143) internal successors, (304), 7 states have internal predecessors, (304), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:26,788 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:26,788 INFO  L93              Difference]: Finished difference Result 6762 states and 9781 transitions.
[2024-11-18 18:14:26,788 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-18 18:14:26,789 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 43.42857142857143) internal successors, (304), 7 states have internal predecessors, (304), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 311
[2024-11-18 18:14:26,789 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:26,795 INFO  L225             Difference]: With dead ends: 6762
[2024-11-18 18:14:26,795 INFO  L226             Difference]: Without dead ends: 5062
[2024-11-18 18:14:26,799 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:14:26,799 INFO  L432           NwaCegarLoop]: 1091 mSDtfsCounter, 1757 mSDsluCounter, 4331 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 5422 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:26,800 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 5422 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 18:14:26,804 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5062 states.
[2024-11-18 18:14:26,856 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5062 to 4648.
[2024-11-18 18:14:26,860 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4648 states, 4610 states have (on average 1.43470715835141) internal successors, (6614), 4610 states have internal predecessors, (6614), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:26,868 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4648 states to 4648 states and 6686 transitions.
[2024-11-18 18:14:26,869 INFO  L78                 Accepts]: Start accepts. Automaton has 4648 states and 6686 transitions. Word has length 311
[2024-11-18 18:14:26,870 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:26,870 INFO  L471      AbstractCegarLoop]: Abstraction has 4648 states and 6686 transitions.
[2024-11-18 18:14:26,870 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 43.42857142857143) internal successors, (304), 7 states have internal predecessors, (304), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:26,870 INFO  L276                IsEmpty]: Start isEmpty. Operand 4648 states and 6686 transitions.
[2024-11-18 18:14:26,876 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 313
[2024-11-18 18:14:26,876 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:26,876 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:26,876 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2024-11-18 18:14:26,877 INFO  L396      AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:26,877 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:26,877 INFO  L85        PathProgramCache]: Analyzing trace with hash 47829165, now seen corresponding path program 1 times
[2024-11-18 18:14:26,878 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:26,878 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231097719]
[2024-11-18 18:14:26,878 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:26,878 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:27,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:27,464 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:27,465 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:27,465 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231097719]
[2024-11-18 18:14:27,465 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231097719] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:27,465 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:27,465 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:27,465 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91095901]
[2024-11-18 18:14:27,465 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:27,466 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:27,466 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:27,467 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:27,467 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:27,467 INFO  L87              Difference]: Start difference. First operand 4648 states and 6686 transitions. Second operand  has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:27,574 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:27,575 INFO  L93              Difference]: Finished difference Result 6324 states and 9127 transitions.
[2024-11-18 18:14:27,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 18:14:27,575 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 312
[2024-11-18 18:14:27,576 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:27,582 INFO  L225             Difference]: With dead ends: 6324
[2024-11-18 18:14:27,583 INFO  L226             Difference]: Without dead ends: 4656
[2024-11-18 18:14:27,586 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:27,587 INFO  L432           NwaCegarLoop]: 1184 mSDtfsCounter, 1004 mSDsluCounter, 3536 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 4720 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:27,587 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 4720 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:14:27,590 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4656 states.
[2024-11-18 18:14:27,642 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4652.
[2024-11-18 18:14:27,647 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4652 states, 4614 states have (on average 1.4343302990897269) internal successors, (6618), 4614 states have internal predecessors, (6618), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:27,654 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 6690 transitions.
[2024-11-18 18:14:27,654 INFO  L78                 Accepts]: Start accepts. Automaton has 4652 states and 6690 transitions. Word has length 312
[2024-11-18 18:14:27,655 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:27,655 INFO  L471      AbstractCegarLoop]: Abstraction has 4652 states and 6690 transitions.
[2024-11-18 18:14:27,656 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:27,656 INFO  L276                IsEmpty]: Start isEmpty. Operand 4652 states and 6690 transitions.
[2024-11-18 18:14:27,661 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 313
[2024-11-18 18:14:27,662 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:27,662 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:27,662 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2024-11-18 18:14:27,662 INFO  L396      AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:27,663 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:27,663 INFO  L85        PathProgramCache]: Analyzing trace with hash -1975871865, now seen corresponding path program 1 times
[2024-11-18 18:14:27,663 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:27,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131698146]
[2024-11-18 18:14:27,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:27,663 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:27,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:28,701 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:28,702 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:28,702 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131698146]
[2024-11-18 18:14:28,702 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131698146] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:28,702 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:28,702 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-18 18:14:28,703 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050223136]
[2024-11-18 18:14:28,703 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:28,703 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-18 18:14:28,703 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:28,704 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-18 18:14:28,704 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:14:28,704 INFO  L87              Difference]: Start difference. First operand 4652 states and 6690 transitions. Second operand  has 9 states, 9 states have (on average 33.888888888888886) internal successors, (305), 9 states have internal predecessors, (305), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:29,312 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:29,312 INFO  L93              Difference]: Finished difference Result 6778 states and 9795 transitions.
[2024-11-18 18:14:29,312 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-18 18:14:29,312 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 33.888888888888886) internal successors, (305), 9 states have internal predecessors, (305), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 312
[2024-11-18 18:14:29,313 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:29,318 INFO  L225             Difference]: With dead ends: 6778
[2024-11-18 18:14:29,318 INFO  L226             Difference]: Without dead ends: 5090
[2024-11-18 18:14:29,320 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2024-11-18 18:14:29,320 INFO  L432           NwaCegarLoop]: 1080 mSDtfsCounter, 2040 mSDsluCounter, 5638 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2042 SdHoareTripleChecker+Valid, 6718 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:29,320 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2042 Valid, 6718 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-18 18:14:29,323 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5090 states.
[2024-11-18 18:14:29,374 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5090 to 4662.
[2024-11-18 18:14:29,378 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4662 states, 4624 states have (on average 1.4338235294117647) internal successors, (6630), 4624 states have internal predecessors, (6630), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:29,385 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4662 states to 4662 states and 6702 transitions.
[2024-11-18 18:14:29,386 INFO  L78                 Accepts]: Start accepts. Automaton has 4662 states and 6702 transitions. Word has length 312
[2024-11-18 18:14:29,386 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:29,387 INFO  L471      AbstractCegarLoop]: Abstraction has 4662 states and 6702 transitions.
[2024-11-18 18:14:29,387 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 33.888888888888886) internal successors, (305), 9 states have internal predecessors, (305), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:29,387 INFO  L276                IsEmpty]: Start isEmpty. Operand 4662 states and 6702 transitions.
[2024-11-18 18:14:29,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 314
[2024-11-18 18:14:29,392 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:29,393 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:29,393 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2024-11-18 18:14:29,393 INFO  L396      AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:29,394 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:29,394 INFO  L85        PathProgramCache]: Analyzing trace with hash -939998632, now seen corresponding path program 1 times
[2024-11-18 18:14:29,394 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:29,394 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154308856]
[2024-11-18 18:14:29,394 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:29,394 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:29,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:29,762 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:29,762 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:29,762 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154308856]
[2024-11-18 18:14:29,762 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154308856] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:29,762 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:29,763 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 18:14:29,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375558802]
[2024-11-18 18:14:29,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:29,763 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 18:14:29,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:29,764 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 18:14:29,764 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:14:29,764 INFO  L87              Difference]: Start difference. First operand 4662 states and 6702 transitions. Second operand  has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:29,810 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:29,810 INFO  L93              Difference]: Finished difference Result 6344 states and 9149 transitions.
[2024-11-18 18:14:29,811 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 18:14:29,811 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 313
[2024-11-18 18:14:29,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:29,815 INFO  L225             Difference]: With dead ends: 6344
[2024-11-18 18:14:29,815 INFO  L226             Difference]: Without dead ends: 4672
[2024-11-18 18:14:29,817 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 18:14:29,817 INFO  L432           NwaCegarLoop]: 1193 mSDtfsCounter, 0 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:29,817 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3571 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 18:14:29,819 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4672 states.
[2024-11-18 18:14:29,854 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4672.
[2024-11-18 18:14:29,858 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4672 states, 4634 states have (on average 1.433318946914113) internal successors, (6642), 4634 states have internal predecessors, (6642), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:29,864 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4672 states to 4672 states and 6714 transitions.
[2024-11-18 18:14:29,865 INFO  L78                 Accepts]: Start accepts. Automaton has 4672 states and 6714 transitions. Word has length 313
[2024-11-18 18:14:29,865 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:29,865 INFO  L471      AbstractCegarLoop]: Abstraction has 4672 states and 6714 transitions.
[2024-11-18 18:14:29,866 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:29,866 INFO  L276                IsEmpty]: Start isEmpty. Operand 4672 states and 6714 transitions.
[2024-11-18 18:14:29,870 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 314
[2024-11-18 18:14:29,871 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:29,871 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:29,871 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2024-11-18 18:14:29,871 INFO  L396      AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:29,872 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:29,872 INFO  L85        PathProgramCache]: Analyzing trace with hash 140210876, now seen corresponding path program 1 times
[2024-11-18 18:14:29,872 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:29,872 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525117506]
[2024-11-18 18:14:29,872 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:29,873 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:30,077 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:30,436 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:30,436 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:30,436 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525117506]
[2024-11-18 18:14:30,436 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525117506] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:30,436 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:30,436 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 18:14:30,437 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143877742]
[2024-11-18 18:14:30,437 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:30,437 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 18:14:30,437 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:30,438 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 18:14:30,438 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-18 18:14:30,438 INFO  L87              Difference]: Start difference. First operand 4672 states and 6714 transitions. Second operand  has 6 states, 6 states have (on average 51.0) internal successors, (306), 6 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:30,588 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:30,589 INFO  L93              Difference]: Finished difference Result 6722 states and 9709 transitions.
[2024-11-18 18:14:30,589 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 18:14:30,589 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 51.0) internal successors, (306), 6 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 313
[2024-11-18 18:14:30,590 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:30,598 INFO  L225             Difference]: With dead ends: 6722
[2024-11-18 18:14:30,599 INFO  L226             Difference]: Without dead ends: 5044
[2024-11-18 18:14:30,602 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:30,603 INFO  L432           NwaCegarLoop]: 1165 mSDtfsCounter, 598 mSDsluCounter, 3781 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 4946 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:30,603 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 4946 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 18:14:30,607 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5044 states.
[2024-11-18 18:14:30,651 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5044 to 4694.
[2024-11-18 18:14:30,654 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4694 states, 4656 states have (on average 1.4325601374570447) internal successors, (6670), 4656 states have internal predecessors, (6670), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:30,658 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4694 states to 4694 states and 6742 transitions.
[2024-11-18 18:14:30,658 INFO  L78                 Accepts]: Start accepts. Automaton has 4694 states and 6742 transitions. Word has length 313
[2024-11-18 18:14:30,659 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:30,659 INFO  L471      AbstractCegarLoop]: Abstraction has 4694 states and 6742 transitions.
[2024-11-18 18:14:30,659 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 51.0) internal successors, (306), 6 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:30,659 INFO  L276                IsEmpty]: Start isEmpty. Operand 4694 states and 6742 transitions.
[2024-11-18 18:14:30,663 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 314
[2024-11-18 18:14:30,663 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:30,663 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:30,664 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2024-11-18 18:14:30,664 INFO  L396      AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:30,664 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:30,664 INFO  L85        PathProgramCache]: Analyzing trace with hash 1996164692, now seen corresponding path program 1 times
[2024-11-18 18:14:30,664 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:30,664 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961805948]
[2024-11-18 18:14:30,665 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:30,665 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:30,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 18:14:31,657 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 18:14:31,657 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 18:14:31,657 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961805948]
[2024-11-18 18:14:31,657 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961805948] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 18:14:31,657 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 18:14:31,657 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 18:14:31,657 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573346094]
[2024-11-18 18:14:31,658 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 18:14:31,658 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 18:14:31,658 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 18:14:31,659 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 18:14:31,659 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-18 18:14:31,659 INFO  L87              Difference]: Start difference. First operand 4694 states and 6742 transitions. Second operand  has 7 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:32,084 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 18:14:32,084 INFO  L93              Difference]: Finished difference Result 6772 states and 9779 transitions.
[2024-11-18 18:14:32,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-18 18:14:32,085 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 313
[2024-11-18 18:14:32,085 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 18:14:32,092 INFO  L225             Difference]: With dead ends: 6772
[2024-11-18 18:14:32,093 INFO  L226             Difference]: Without dead ends: 5094
[2024-11-18 18:14:32,097 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2024-11-18 18:14:32,098 INFO  L432           NwaCegarLoop]: 1815 mSDtfsCounter, 1789 mSDsluCounter, 6465 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1791 SdHoareTripleChecker+Valid, 8280 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-18 18:14:32,098 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1791 Valid, 8280 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-18 18:14:32,102 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5094 states.
[2024-11-18 18:14:32,154 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5094 to 4722.
[2024-11-18 18:14:32,159 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4722 states, 4684 states have (on average 1.4321093082835183) internal successors, (6708), 4684 states have internal predecessors, (6708), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 18:14:32,165 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4722 states to 4722 states and 6780 transitions.
[2024-11-18 18:14:32,166 INFO  L78                 Accepts]: Start accepts. Automaton has 4722 states and 6780 transitions. Word has length 313
[2024-11-18 18:14:32,167 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 18:14:32,167 INFO  L471      AbstractCegarLoop]: Abstraction has 4722 states and 6780 transitions.
[2024-11-18 18:14:32,167 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 43.714285714285715) internal successors, (306), 7 states have internal predecessors, (306), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-18 18:14:32,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 4722 states and 6780 transitions.
[2024-11-18 18:14:32,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 314
[2024-11-18 18:14:32,172 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 18:14:32,172 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 18:14:32,172 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2024-11-18 18:14:32,172 INFO  L396      AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 18:14:32,173 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 18:14:32,173 INFO  L85        PathProgramCache]: Analyzing trace with hash 689643512, now seen corresponding path program 1 times
[2024-11-18 18:14:32,173 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 18:14:32,173 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669486411]
[2024-11-18 18:14:32,173 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 18:14:32,173 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 18:14:32,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat