./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version c7c6ca5d
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.vis_arrays_two_p1.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 a615b663b5895b4b891110151ed37d2c5777d9e61c5a340653346e5f4d27eeef
--- Real Ultimate output ---
This is Ultimate 0.2.5-?-c7c6ca5-m
[2024-11-08 19:16:24,284 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 19:16:24,354 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-08 19:16:24,360 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 19:16:24,361 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 19:16:24,393 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 19:16:24,394 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 19:16:24,394 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 19:16:24,395 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 19:16:24,395 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 19:16:24,397 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 19:16:24,397 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 19:16:24,398 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 19:16:24,398 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 19:16:24,399 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 19:16:24,399 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 19:16:24,399 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 19:16:24,400 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 19:16:24,400 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 19:16:24,400 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 19:16:24,401 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 19:16:24,404 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 19:16:24,404 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 19:16:24,405 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 19:16:24,408 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 19:16:24,409 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 19:16:24,409 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 19:16:24,410 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 19:16:24,410 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 19:16:24,410 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 19:16:24,410 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 19:16:24,411 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 19:16:24,411 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 19:16:24,411 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 19:16:24,411 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 19:16:24,412 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 19:16:24,412 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 19:16:24,412 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 19:16:24,412 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 19:16:24,413 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 -> a615b663b5895b4b891110151ed37d2c5777d9e61c5a340653346e5f4d27eeef
[2024-11-08 19:16:24,721 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 19:16:24,749 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 19:16:24,752 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 19:16:24,754 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 19:16:24,754 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 19:16:24,756 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c
[2024-11-08 19:16:26,213 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 19:16:26,513 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 19:16:26,516 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c
[2024-11-08 19:16:26,534 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ee72547/b92f1dd0828840ff9863fbbcb96808b1/FLAG8c59908c9
[2024-11-08 19:16:26,554 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ee72547/b92f1dd0828840ff9863fbbcb96808b1
[2024-11-08 19:16:26,557 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 19:16:26,559 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 19:16:26,562 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 19:16:26,563 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 19:16:26,568 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 19:16:26,569 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:16:26" (1/1) ...
[2024-11-08 19:16:26,570 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f48bc84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:26, skipping insertion in model container
[2024-11-08 19:16:26,570 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:16:26" (1/1) ...
[2024-11-08 19:16:26,634 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 19:16:26,860 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.vis_arrays_two_p1.c[1257,1270]
[2024-11-08 19:16:27,160 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 19:16:27,171 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 19:16:27,184 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.vis_arrays_two_p1.c[1257,1270]
[2024-11-08 19:16:27,338 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 19:16:27,354 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 19:16:27,355 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27 WrapperNode
[2024-11-08 19:16:27,355 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 19:16:27,357 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 19:16:27,357 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 19:16:27,357 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 19:16:27,364 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:27,417 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:27,762 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2921
[2024-11-08 19:16:27,763 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 19:16:27,764 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 19:16:27,764 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 19:16:27,764 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 19:16:27,775 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:27,775 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:28,001 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:28,088 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].
[2024-11-08 19:16:28,089 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:28,089 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:28,235 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:28,257 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:28,283 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:28,306 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:28,369 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 19:16:28,371 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 19:16:28,371 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 19:16:28,371 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 19:16:28,372 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (1/1) ...
[2024-11-08 19:16:28,378 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 19:16:28,388 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 19:16:28,406 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)
[2024-11-08 19:16:28,409 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
[2024-11-08 19:16:28,450 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 19:16:28,451 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 19:16:28,451 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 19:16:28,451 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 19:16:28,739 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 19:16:28,742 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 19:16:31,511 INFO  L?                        ?]: Removed 1802 outVars from TransFormulas that were not future-live.
[2024-11-08 19:16:31,512 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 19:16:31,545 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 19:16:31,545 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 19:16:31,546 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:16:31 BoogieIcfgContainer
[2024-11-08 19:16:31,546 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 19:16:31,549 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 19:16:31,549 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 19:16:31,552 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 19:16:31,552 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:16:26" (1/3) ...
[2024-11-08 19:16:31,553 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11daf5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:16:31, skipping insertion in model container
[2024-11-08 19:16:31,554 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:27" (2/3) ...
[2024-11-08 19:16:31,554 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11daf5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:16:31, skipping insertion in model container
[2024-11-08 19:16:31,555 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:16:31" (3/3) ...
[2024-11-08 19:16:31,556 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_two_p1.c
[2024-11-08 19:16:31,573 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 19:16:31,574 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 19:16:31,655 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 19:16:31,661 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;@5350f7c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 19:16:31,661 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 19:16:31,669 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 842 states, 840 states have (on average 1.4988095238095238) internal successors, (1259), 841 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:31,677 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2024-11-08 19:16:31,677 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:31,677 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:31,678 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:31,683 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:31,683 INFO  L85        PathProgramCache]: Analyzing trace with hash -1223641875, now seen corresponding path program 1 times
[2024-11-08 19:16:31,692 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:31,693 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024166865]
[2024-11-08 19:16:31,693 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:31,693 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:32,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:33,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:33,029 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:33,030 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024166865]
[2024-11-08 19:16:33,030 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024166865] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:33,030 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:33,030 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 19:16:33,032 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209496998]
[2024-11-08 19:16:33,033 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:33,037 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 19:16:33,038 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:33,058 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 19:16:33,059 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:16:33,063 INFO  L87              Difference]: Start difference. First operand  has 842 states, 840 states have (on average 1.4988095238095238) internal successors, (1259), 841 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:33,207 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:33,207 INFO  L93              Difference]: Finished difference Result 1641 states and 2457 transitions.
[2024-11-08 19:16:33,209 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:16:33,210 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59
[2024-11-08 19:16:33,210 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:33,230 INFO  L225             Difference]: With dead ends: 1641
[2024-11-08 19:16:33,231 INFO  L226             Difference]: Without dead ends: 841
[2024-11-08 19:16:33,240 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
[2024-11-08 19:16:33,245 INFO  L432           NwaCegarLoop]: 1253 mSDtfsCounter, 0 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3753 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
[2024-11-08 19:16:33,247 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3753 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:33,266 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 841 states.
[2024-11-08 19:16:33,327 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841.
[2024-11-08 19:16:33,330 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 841 states, 840 states have (on average 1.4964285714285714) internal successors, (1257), 840 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:33,337 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1257 transitions.
[2024-11-08 19:16:33,338 INFO  L78                 Accepts]: Start accepts. Automaton has 841 states and 1257 transitions. Word has length 59
[2024-11-08 19:16:33,339 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:33,339 INFO  L471      AbstractCegarLoop]: Abstraction has 841 states and 1257 transitions.
[2024-11-08 19:16:33,339 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:33,340 INFO  L276                IsEmpty]: Start isEmpty. Operand 841 states and 1257 transitions.
[2024-11-08 19:16:33,341 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-08 19:16:33,341 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:33,342 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:33,342 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 19:16:33,342 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:33,343 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:33,343 INFO  L85        PathProgramCache]: Analyzing trace with hash 723503043, now seen corresponding path program 1 times
[2024-11-08 19:16:33,343 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:33,343 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570171359]
[2024-11-08 19:16:33,344 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:33,344 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:33,507 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:33,862 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:33,863 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:33,863 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570171359]
[2024-11-08 19:16:33,864 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570171359] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:33,864 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:33,864 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 19:16:33,864 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851043861]
[2024-11-08 19:16:33,865 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:33,867 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 19:16:33,867 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:33,868 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 19:16:33,868 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:16:33,868 INFO  L87              Difference]: Start difference. First operand 841 states and 1257 transitions. Second operand  has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:33,920 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:33,920 INFO  L93              Difference]: Finished difference Result 1642 states and 2455 transitions.
[2024-11-08 19:16:33,921 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:16:33,921 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60
[2024-11-08 19:16:33,922 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:33,925 INFO  L225             Difference]: With dead ends: 1642
[2024-11-08 19:16:33,925 INFO  L226             Difference]: Without dead ends: 843
[2024-11-08 19:16:33,928 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
[2024-11-08 19:16:33,929 INFO  L432           NwaCegarLoop]: 1253 mSDtfsCounter, 0 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3749 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
[2024-11-08 19:16:33,930 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3749 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:33,933 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 843 states.
[2024-11-08 19:16:33,946 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843.
[2024-11-08 19:16:33,948 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 843 states, 842 states have (on average 1.495249406175772) internal successors, (1259), 842 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:33,950 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1259 transitions.
[2024-11-08 19:16:33,951 INFO  L78                 Accepts]: Start accepts. Automaton has 843 states and 1259 transitions. Word has length 60
[2024-11-08 19:16:33,951 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:33,951 INFO  L471      AbstractCegarLoop]: Abstraction has 843 states and 1259 transitions.
[2024-11-08 19:16:33,951 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:33,952 INFO  L276                IsEmpty]: Start isEmpty. Operand 843 states and 1259 transitions.
[2024-11-08 19:16:33,953 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2024-11-08 19:16:33,953 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:33,953 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:33,954 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 19:16:33,954 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:33,954 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:33,954 INFO  L85        PathProgramCache]: Analyzing trace with hash -144207738, now seen corresponding path program 1 times
[2024-11-08 19:16:33,955 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:33,955 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319316248]
[2024-11-08 19:16:33,955 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:33,955 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:34,836 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:35,396 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:35,398 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:35,398 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319316248]
[2024-11-08 19:16:35,399 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319316248] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:35,399 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:35,399 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 19:16:35,399 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554705190]
[2024-11-08 19:16:35,400 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:35,400 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 19:16:35,400 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:35,401 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 19:16:35,401 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:16:35,402 INFO  L87              Difference]: Start difference. First operand 843 states and 1259 transitions. Second operand  has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:35,457 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:35,457 INFO  L93              Difference]: Finished difference Result 1646 states and 2459 transitions.
[2024-11-08 19:16:35,458 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:16:35,458 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61
[2024-11-08 19:16:35,460 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:35,463 INFO  L225             Difference]: With dead ends: 1646
[2024-11-08 19:16:35,464 INFO  L226             Difference]: Without dead ends: 845
[2024-11-08 19:16:35,465 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
[2024-11-08 19:16:35,469 INFO  L432           NwaCegarLoop]: 1253 mSDtfsCounter, 0 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3749 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
[2024-11-08 19:16:35,470 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3749 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:35,471 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 845 states.
[2024-11-08 19:16:35,483 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845.
[2024-11-08 19:16:35,487 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 845 states, 844 states have (on average 1.4940758293838863) internal successors, (1261), 844 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:35,490 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1261 transitions.
[2024-11-08 19:16:35,491 INFO  L78                 Accepts]: Start accepts. Automaton has 845 states and 1261 transitions. Word has length 61
[2024-11-08 19:16:35,491 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:35,491 INFO  L471      AbstractCegarLoop]: Abstraction has 845 states and 1261 transitions.
[2024-11-08 19:16:35,492 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:35,492 INFO  L276                IsEmpty]: Start isEmpty. Operand 845 states and 1261 transitions.
[2024-11-08 19:16:35,496 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2024-11-08 19:16:35,496 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:35,496 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:35,497 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 19:16:35,497 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:35,497 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:35,497 INFO  L85        PathProgramCache]: Analyzing trace with hash 733414570, now seen corresponding path program 1 times
[2024-11-08 19:16:35,497 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:35,497 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091820349]
[2024-11-08 19:16:35,498 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:35,498 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:35,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:35,940 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:35,941 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:35,941 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091820349]
[2024-11-08 19:16:35,941 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091820349] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:35,941 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:35,941 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:16:35,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007593704]
[2024-11-08 19:16:35,941 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:35,942 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:16:35,942 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:35,942 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:16:35,942 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:35,943 INFO  L87              Difference]: Start difference. First operand 845 states and 1261 transitions. Second operand  has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:36,026 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:36,027 INFO  L93              Difference]: Finished difference Result 1654 states and 2469 transitions.
[2024-11-08 19:16:36,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:36,027 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62
[2024-11-08 19:16:36,029 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:36,032 INFO  L225             Difference]: With dead ends: 1654
[2024-11-08 19:16:36,032 INFO  L226             Difference]: Without dead ends: 851
[2024-11-08 19:16:36,035 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:36,036 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 4990 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6242 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:36,037 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6242 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:36,040 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 851 states.
[2024-11-08 19:16:36,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 851.
[2024-11-08 19:16:36,051 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 851 states, 850 states have (on average 1.4929411764705882) internal successors, (1269), 850 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:36,053 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1269 transitions.
[2024-11-08 19:16:36,053 INFO  L78                 Accepts]: Start accepts. Automaton has 851 states and 1269 transitions. Word has length 62
[2024-11-08 19:16:36,054 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:36,054 INFO  L471      AbstractCegarLoop]: Abstraction has 851 states and 1269 transitions.
[2024-11-08 19:16:36,054 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:36,054 INFO  L276                IsEmpty]: Start isEmpty. Operand 851 states and 1269 transitions.
[2024-11-08 19:16:36,055 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-08 19:16:36,055 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:36,055 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:36,056 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 19:16:36,056 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:36,056 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:36,056 INFO  L85        PathProgramCache]: Analyzing trace with hash 2106156792, now seen corresponding path program 1 times
[2024-11-08 19:16:36,056 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:36,056 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364379535]
[2024-11-08 19:16:36,057 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:36,057 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:36,172 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:36,461 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:36,462 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:36,462 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364379535]
[2024-11-08 19:16:36,463 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364379535] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:36,464 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:36,464 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:16:36,464 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111025971]
[2024-11-08 19:16:36,464 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:36,465 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:16:36,465 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:36,467 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:16:36,467 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:16:36,467 INFO  L87              Difference]: Start difference. First operand 851 states and 1269 transitions. Second operand  has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:36,533 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:36,533 INFO  L93              Difference]: Finished difference Result 1666 states and 2485 transitions.
[2024-11-08 19:16:36,534 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:36,534 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63
[2024-11-08 19:16:36,534 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:36,538 INFO  L225             Difference]: With dead ends: 1666
[2024-11-08 19:16:36,538 INFO  L226             Difference]: Without dead ends: 857
[2024-11-08 19:16:36,540 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
[2024-11-08 19:16:36,542 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:36,543 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4996 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:36,545 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 857 states.
[2024-11-08 19:16:36,556 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 857.
[2024-11-08 19:16:36,558 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 857 states, 856 states have (on average 1.4918224299065421) internal successors, (1277), 856 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:36,560 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1277 transitions.
[2024-11-08 19:16:36,561 INFO  L78                 Accepts]: Start accepts. Automaton has 857 states and 1277 transitions. Word has length 63
[2024-11-08 19:16:36,562 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:36,562 INFO  L471      AbstractCegarLoop]: Abstraction has 857 states and 1277 transitions.
[2024-11-08 19:16:36,563 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:36,563 INFO  L276                IsEmpty]: Start isEmpty. Operand 857 states and 1277 transitions.
[2024-11-08 19:16:36,564 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-08 19:16:36,564 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:36,565 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:36,565 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 19:16:36,565 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:36,565 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:36,566 INFO  L85        PathProgramCache]: Analyzing trace with hash -416324680, now seen corresponding path program 1 times
[2024-11-08 19:16:36,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:36,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724560842]
[2024-11-08 19:16:36,566 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:36,566 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:36,740 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:37,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:37,052 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:37,052 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724560842]
[2024-11-08 19:16:37,052 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724560842] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:37,052 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:37,053 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:16:37,053 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298111855]
[2024-11-08 19:16:37,053 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:37,053 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:16:37,053 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:37,054 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:16:37,054 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:37,054 INFO  L87              Difference]: Start difference. First operand 857 states and 1277 transitions. Second operand  has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:37,114 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:37,115 INFO  L93              Difference]: Finished difference Result 1678 states and 2501 transitions.
[2024-11-08 19:16:37,115 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:37,115 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64
[2024-11-08 19:16:37,116 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:37,119 INFO  L225             Difference]: With dead ends: 1678
[2024-11-08 19:16:37,119 INFO  L226             Difference]: Without dead ends: 863
[2024-11-08 19:16:37,120 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:37,121 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:37,121 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4996 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:37,123 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 863 states.
[2024-11-08 19:16:37,133 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863.
[2024-11-08 19:16:37,135 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 863 states, 862 states have (on average 1.4907192575406032) internal successors, (1285), 862 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:37,137 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1285 transitions.
[2024-11-08 19:16:37,137 INFO  L78                 Accepts]: Start accepts. Automaton has 863 states and 1285 transitions. Word has length 64
[2024-11-08 19:16:37,138 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:37,138 INFO  L471      AbstractCegarLoop]: Abstraction has 863 states and 1285 transitions.
[2024-11-08 19:16:37,138 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:37,138 INFO  L276                IsEmpty]: Start isEmpty. Operand 863 states and 1285 transitions.
[2024-11-08 19:16:37,139 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-08 19:16:37,139 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:37,139 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:37,139 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 19:16:37,140 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:37,140 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:37,140 INFO  L85        PathProgramCache]: Analyzing trace with hash 1736182378, now seen corresponding path program 1 times
[2024-11-08 19:16:37,140 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:37,140 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999038435]
[2024-11-08 19:16:37,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:37,141 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:37,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:37,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:37,554 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:37,555 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999038435]
[2024-11-08 19:16:37,555 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999038435] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:37,555 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:37,555 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:16:37,555 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053625034]
[2024-11-08 19:16:37,555 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:37,556 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:16:37,556 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:37,556 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:16:37,557 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:16:37,557 INFO  L87              Difference]: Start difference. First operand 863 states and 1285 transitions. Second operand  has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:37,608 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:37,609 INFO  L93              Difference]: Finished difference Result 1690 states and 2517 transitions.
[2024-11-08 19:16:37,609 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:37,610 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65
[2024-11-08 19:16:37,610 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:37,613 INFO  L225             Difference]: With dead ends: 1690
[2024-11-08 19:16:37,613 INFO  L226             Difference]: Without dead ends: 869
[2024-11-08 19:16:37,617 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
[2024-11-08 19:16:37,618 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:37,618 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4996 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:37,620 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 869 states.
[2024-11-08 19:16:37,630 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869.
[2024-11-08 19:16:37,631 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 869 states, 868 states have (on average 1.48963133640553) internal successors, (1293), 868 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:37,633 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1293 transitions.
[2024-11-08 19:16:37,634 INFO  L78                 Accepts]: Start accepts. Automaton has 869 states and 1293 transitions. Word has length 65
[2024-11-08 19:16:37,634 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:37,634 INFO  L471      AbstractCegarLoop]: Abstraction has 869 states and 1293 transitions.
[2024-11-08 19:16:37,634 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:37,634 INFO  L276                IsEmpty]: Start isEmpty. Operand 869 states and 1293 transitions.
[2024-11-08 19:16:37,635 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-08 19:16:37,635 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:37,635 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:37,635 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 19:16:37,636 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:37,636 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:37,636 INFO  L85        PathProgramCache]: Analyzing trace with hash 189302214, now seen corresponding path program 1 times
[2024-11-08 19:16:37,636 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:37,636 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887297216]
[2024-11-08 19:16:37,637 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:37,637 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:37,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:38,064 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:38,065 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:38,065 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887297216]
[2024-11-08 19:16:38,065 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887297216] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:38,065 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:38,066 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:16:38,066 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550176078]
[2024-11-08 19:16:38,066 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:38,066 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:16:38,066 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:38,067 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:16:38,067 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:38,067 INFO  L87              Difference]: Start difference. First operand 869 states and 1293 transitions. Second operand  has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:38,123 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:38,124 INFO  L93              Difference]: Finished difference Result 1702 states and 2533 transitions.
[2024-11-08 19:16:38,124 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:38,125 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66
[2024-11-08 19:16:38,126 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:38,128 INFO  L225             Difference]: With dead ends: 1702
[2024-11-08 19:16:38,128 INFO  L226             Difference]: Without dead ends: 875
[2024-11-08 19:16:38,130 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:38,131 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:38,131 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4996 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:38,132 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 875 states.
[2024-11-08 19:16:38,142 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 875.
[2024-11-08 19:16:38,144 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 875 states, 874 states have (on average 1.488558352402746) internal successors, (1301), 874 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:38,146 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1301 transitions.
[2024-11-08 19:16:38,147 INFO  L78                 Accepts]: Start accepts. Automaton has 875 states and 1301 transitions. Word has length 66
[2024-11-08 19:16:38,147 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:38,147 INFO  L471      AbstractCegarLoop]: Abstraction has 875 states and 1301 transitions.
[2024-11-08 19:16:38,147 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:38,147 INFO  L276                IsEmpty]: Start isEmpty. Operand 875 states and 1301 transitions.
[2024-11-08 19:16:38,149 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2024-11-08 19:16:38,149 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:38,149 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:38,149 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 19:16:38,149 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:38,150 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:38,150 INFO  L85        PathProgramCache]: Analyzing trace with hash 335829724, now seen corresponding path program 1 times
[2024-11-08 19:16:38,150 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:38,150 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937316518]
[2024-11-08 19:16:38,150 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:38,150 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:38,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:38,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:38,616 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:38,616 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937316518]
[2024-11-08 19:16:38,616 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937316518] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:38,616 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:38,617 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:16:38,617 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236652136]
[2024-11-08 19:16:38,617 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:38,617 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:16:38,617 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:38,618 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:16:38,618 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:16:38,619 INFO  L87              Difference]: Start difference. First operand 875 states and 1301 transitions. Second operand  has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:38,672 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:38,672 INFO  L93              Difference]: Finished difference Result 1714 states and 2549 transitions.
[2024-11-08 19:16:38,672 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:38,673 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67
[2024-11-08 19:16:38,673 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:38,677 INFO  L225             Difference]: With dead ends: 1714
[2024-11-08 19:16:38,677 INFO  L226             Difference]: Without dead ends: 881
[2024-11-08 19:16:38,678 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
[2024-11-08 19:16:38,680 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:38,680 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4996 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:38,682 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 881 states.
[2024-11-08 19:16:38,693 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881.
[2024-11-08 19:16:38,694 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 881 states, 880 states have (on average 1.4875) internal successors, (1309), 880 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:38,698 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1309 transitions.
[2024-11-08 19:16:38,699 INFO  L78                 Accepts]: Start accepts. Automaton has 881 states and 1309 transitions. Word has length 67
[2024-11-08 19:16:38,699 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:38,699 INFO  L471      AbstractCegarLoop]: Abstraction has 881 states and 1309 transitions.
[2024-11-08 19:16:38,699 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:38,699 INFO  L276                IsEmpty]: Start isEmpty. Operand 881 states and 1309 transitions.
[2024-11-08 19:16:38,700 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 19:16:38,700 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:38,700 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:38,701 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 19:16:38,701 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:38,702 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:38,702 INFO  L85        PathProgramCache]: Analyzing trace with hash -1196586284, now seen corresponding path program 1 times
[2024-11-08 19:16:38,702 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:38,702 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601586851]
[2024-11-08 19:16:38,702 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:38,702 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:39,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:39,628 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:39,629 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:39,629 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601586851]
[2024-11-08 19:16:39,629 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601586851] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:39,629 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:39,629 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:16:39,629 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278171640]
[2024-11-08 19:16:39,629 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:39,630 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:16:39,630 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:39,630 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:16:39,630 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:16:39,630 INFO  L87              Difference]: Start difference. First operand 881 states and 1309 transitions. Second operand  has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:39,696 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:39,697 INFO  L93              Difference]: Finished difference Result 1722 states and 2559 transitions.
[2024-11-08 19:16:39,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:39,697 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68
[2024-11-08 19:16:39,697 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:39,700 INFO  L225             Difference]: With dead ends: 1722
[2024-11-08 19:16:39,701 INFO  L226             Difference]: Without dead ends: 883
[2024-11-08 19:16:39,702 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:39,703 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 1231 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:39,704 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 3746 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:39,705 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 883 states.
[2024-11-08 19:16:39,715 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883.
[2024-11-08 19:16:39,717 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:39,719 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:39,719 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 68
[2024-11-08 19:16:39,719 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:39,719 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:39,720 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:39,720 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:39,720 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2024-11-08 19:16:39,720 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:39,721 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:39,721 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 19:16:39,721 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:39,722 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:39,722 INFO  L85        PathProgramCache]: Analyzing trace with hash -794746315, now seen corresponding path program 1 times
[2024-11-08 19:16:39,722 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:39,722 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945605241]
[2024-11-08 19:16:39,722 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:39,722 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:40,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:40,649 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:40,650 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:40,650 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945605241]
[2024-11-08 19:16:40,650 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945605241] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:40,650 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:40,650 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:16:40,650 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418975185]
[2024-11-08 19:16:40,650 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:40,651 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:16:40,651 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:40,651 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:16:40,651 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:16:40,651 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:40,706 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:40,707 INFO  L93              Difference]: Finished difference Result 1728 states and 2565 transitions.
[2024-11-08 19:16:40,707 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:40,707 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69
[2024-11-08 19:16:40,707 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:40,711 INFO  L225             Difference]: With dead ends: 1728
[2024-11-08 19:16:40,712 INFO  L226             Difference]: Without dead ends: 887
[2024-11-08 19:16:40,713 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:40,714 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 1210 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:40,714 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 3746 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:40,716 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2024-11-08 19:16:40,729 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883.
[2024-11-08 19:16:40,731 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:40,733 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:40,733 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 69
[2024-11-08 19:16:40,733 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:40,733 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:40,733 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:40,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:40,734 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2024-11-08 19:16:40,734 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:40,734 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:40,735 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-08 19:16:40,735 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:40,735 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:40,735 INFO  L85        PathProgramCache]: Analyzing trace with hash -1669284108, now seen corresponding path program 1 times
[2024-11-08 19:16:40,735 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:40,736 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564073410]
[2024-11-08 19:16:40,736 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:40,736 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:41,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:41,592 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:41,592 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:41,592 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564073410]
[2024-11-08 19:16:41,592 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564073410] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:41,593 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:41,593 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:16:41,593 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112925035]
[2024-11-08 19:16:41,593 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:41,593 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:16:41,593 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:41,594 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:16:41,594 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:41,594 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:41,669 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:41,670 INFO  L93              Difference]: Finished difference Result 1728 states and 2565 transitions.
[2024-11-08 19:16:41,670 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:41,670 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70
[2024-11-08 19:16:41,670 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:41,673 INFO  L225             Difference]: With dead ends: 1728
[2024-11-08 19:16:41,674 INFO  L226             Difference]: Without dead ends: 887
[2024-11-08 19:16:41,675 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:16:41,675 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 1215 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:41,676 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 4993 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:41,678 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2024-11-08 19:16:41,688 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883.
[2024-11-08 19:16:41,690 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:41,692 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:41,693 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 70
[2024-11-08 19:16:41,693 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:41,693 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:41,693 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:41,694 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:41,694 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2024-11-08 19:16:41,694 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:41,694 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:41,695 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-08 19:16:41,695 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:41,695 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:41,695 INFO  L85        PathProgramCache]: Analyzing trace with hash -1793173323, now seen corresponding path program 1 times
[2024-11-08 19:16:41,696 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:41,696 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111681650]
[2024-11-08 19:16:41,696 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:41,696 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:41,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:42,643 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:42,644 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:42,644 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111681650]
[2024-11-08 19:16:42,644 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111681650] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:42,644 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:42,644 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:16:42,644 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817185483]
[2024-11-08 19:16:42,645 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:42,645 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:16:42,645 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:42,646 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:16:42,646 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:42,646 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:42,730 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:42,730 INFO  L93              Difference]: Finished difference Result 1728 states and 2565 transitions.
[2024-11-08 19:16:42,731 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:42,731 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71
[2024-11-08 19:16:42,732 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:42,735 INFO  L225             Difference]: With dead ends: 1728
[2024-11-08 19:16:42,735 INFO  L226             Difference]: Without dead ends: 887
[2024-11-08 19:16:42,737 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:16:42,738 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 1203 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:42,738 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 4993 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:42,740 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2024-11-08 19:16:42,754 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883.
[2024-11-08 19:16:42,756 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:42,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:42,759 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 71
[2024-11-08 19:16:42,760 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:42,760 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:42,760 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:42,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:42,761 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2024-11-08 19:16:42,761 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:42,761 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:42,762 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-08 19:16:42,762 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:42,762 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:42,762 INFO  L85        PathProgramCache]: Analyzing trace with hash 173883860, now seen corresponding path program 1 times
[2024-11-08 19:16:42,763 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:42,763 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639449396]
[2024-11-08 19:16:42,763 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:42,763 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:43,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:43,640 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:43,641 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:43,641 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639449396]
[2024-11-08 19:16:43,641 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639449396] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:43,641 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:43,641 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:16:43,642 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275541271]
[2024-11-08 19:16:43,642 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:43,642 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:16:43,642 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:43,643 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:16:43,643 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:43,643 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:43,719 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:43,719 INFO  L93              Difference]: Finished difference Result 1728 states and 2565 transitions.
[2024-11-08 19:16:43,720 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:43,720 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72
[2024-11-08 19:16:43,720 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:43,724 INFO  L225             Difference]: With dead ends: 1728
[2024-11-08 19:16:43,724 INFO  L226             Difference]: Without dead ends: 887
[2024-11-08 19:16:43,725 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:16:43,726 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 1225 mSDsluCounter, 3740 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 4992 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:43,726 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 4992 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:43,729 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2024-11-08 19:16:43,745 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883.
[2024-11-08 19:16:43,747 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:43,749 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:43,749 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 72
[2024-11-08 19:16:43,749 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:43,750 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:43,750 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:43,750 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:43,750 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-11-08 19:16:43,751 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:43,751 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:43,751 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-08 19:16:43,751 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:43,752 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:43,752 INFO  L85        PathProgramCache]: Analyzing trace with hash -1498363051, now seen corresponding path program 1 times
[2024-11-08 19:16:43,752 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:43,752 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960288974]
[2024-11-08 19:16:43,752 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:43,752 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:44,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:44,609 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:44,610 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:44,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960288974]
[2024-11-08 19:16:44,610 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960288974] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:44,610 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:44,610 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:16:44,610 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25246536]
[2024-11-08 19:16:44,611 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:44,611 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:16:44,611 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:44,611 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:16:44,612 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:16:44,612 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:44,667 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:44,667 INFO  L93              Difference]: Finished difference Result 1728 states and 2565 transitions.
[2024-11-08 19:16:44,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:44,668 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73
[2024-11-08 19:16:44,668 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:44,671 INFO  L225             Difference]: With dead ends: 1728
[2024-11-08 19:16:44,671 INFO  L226             Difference]: Without dead ends: 887
[2024-11-08 19:16:44,673 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:44,675 INFO  L432           NwaCegarLoop]: 1252 mSDtfsCounter, 1219 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 3747 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:44,675 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 3747 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:16:44,677 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2024-11-08 19:16:44,687 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883.
[2024-11-08 19:16:44,689 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:44,692 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:44,692 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 73
[2024-11-08 19:16:44,692 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:44,692 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:44,692 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:44,693 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:44,695 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-08 19:16:44,695 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:44,695 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:44,695 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-08 19:16:44,696 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:44,696 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:44,696 INFO  L85        PathProgramCache]: Analyzing trace with hash -505560236, now seen corresponding path program 1 times
[2024-11-08 19:16:44,696 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:44,696 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059475118]
[2024-11-08 19:16:44,697 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:44,697 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:45,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:45,608 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:45,609 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:45,609 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059475118]
[2024-11-08 19:16:45,609 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059475118] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:45,609 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:45,609 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:16:45,609 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134556738]
[2024-11-08 19:16:45,610 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:45,610 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:16:45,612 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:45,612 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:16:45,612 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:16:45,612 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:45,890 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:45,890 INFO  L93              Difference]: Finished difference Result 1726 states and 2563 transitions.
[2024-11-08 19:16:45,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:45,891 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74
[2024-11-08 19:16:45,891 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:45,894 INFO  L225             Difference]: With dead ends: 1726
[2024-11-08 19:16:45,894 INFO  L226             Difference]: Without dead ends: 885
[2024-11-08 19:16:45,896 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:16:45,896 INFO  L432           NwaCegarLoop]: 1158 mSDtfsCounter, 1229 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:45,897 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 3467 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 19:16:45,899 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 885 states.
[2024-11-08 19:16:45,910 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 883.
[2024-11-08 19:16:45,912 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:45,914 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:45,915 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 74
[2024-11-08 19:16:45,915 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:45,915 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:45,915 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:45,916 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:45,916 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2024-11-08 19:16:45,916 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:45,917 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:45,917 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-08 19:16:45,917 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:45,917 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:45,917 INFO  L85        PathProgramCache]: Analyzing trace with hash 2099278738, now seen corresponding path program 1 times
[2024-11-08 19:16:45,918 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:45,918 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299144626]
[2024-11-08 19:16:45,918 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:45,918 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:46,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:46,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:46,952 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:46,952 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299144626]
[2024-11-08 19:16:46,952 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299144626] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:46,952 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:46,952 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:16:46,952 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872681586]
[2024-11-08 19:16:46,952 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:46,953 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:16:46,953 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:46,953 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:16:46,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:46,954 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:47,313 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:47,314 INFO  L93              Difference]: Finished difference Result 1728 states and 2565 transitions.
[2024-11-08 19:16:47,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:47,314 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75
[2024-11-08 19:16:47,315 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:47,318 INFO  L225             Difference]: With dead ends: 1728
[2024-11-08 19:16:47,318 INFO  L226             Difference]: Without dead ends: 887
[2024-11-08 19:16:47,319 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-08 19:16:47,320 INFO  L432           NwaCegarLoop]: 1158 mSDtfsCounter, 1198 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 4618 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:47,320 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 4618 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 19:16:47,322 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2024-11-08 19:16:47,333 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883.
[2024-11-08 19:16:47,335 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:47,337 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:47,337 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 75
[2024-11-08 19:16:47,338 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:47,338 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:47,338 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:47,338 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:47,338 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-11-08 19:16:47,338 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:47,339 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:47,339 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-08 19:16:47,339 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:47,339 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:47,340 INFO  L85        PathProgramCache]: Analyzing trace with hash 1884563700, now seen corresponding path program 1 times
[2024-11-08 19:16:47,340 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:47,340 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342664198]
[2024-11-08 19:16:47,340 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:47,340 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:47,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:48,570 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:48,571 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:48,571 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342664198]
[2024-11-08 19:16:48,571 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342664198] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:48,571 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:48,571 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:16:48,571 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707828198]
[2024-11-08 19:16:48,572 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:48,572 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:16:48,572 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:48,573 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:16:48,573 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:16:48,573 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:48,825 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:48,825 INFO  L93              Difference]: Finished difference Result 1728 states and 2565 transitions.
[2024-11-08 19:16:48,826 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:48,826 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76
[2024-11-08 19:16:48,826 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:48,829 INFO  L225             Difference]: With dead ends: 1728
[2024-11-08 19:16:48,829 INFO  L226             Difference]: Without dead ends: 887
[2024-11-08 19:16:48,830 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:16:48,831 INFO  L432           NwaCegarLoop]: 1158 mSDtfsCounter, 1216 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:48,831 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 3467 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 19:16:48,832 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2024-11-08 19:16:48,842 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883.
[2024-11-08 19:16:48,844 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:48,845 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:48,845 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 76
[2024-11-08 19:16:48,846 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:48,846 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:48,846 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:48,846 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:48,847 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-08 19:16:48,847 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:48,847 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:48,847 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-08 19:16:48,847 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:48,848 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:48,848 INFO  L85        PathProgramCache]: Analyzing trace with hash -681649934, now seen corresponding path program 1 times
[2024-11-08 19:16:48,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:48,848 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338235955]
[2024-11-08 19:16:48,848 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:48,848 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:49,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:49,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:49,812 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:49,812 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338235955]
[2024-11-08 19:16:49,812 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338235955] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:49,812 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:49,812 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:16:49,812 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654296961]
[2024-11-08 19:16:49,812 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:49,813 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:16:49,814 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:49,814 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:16:49,815 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:49,815 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:50,145 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:50,146 INFO  L93              Difference]: Finished difference Result 1728 states and 2565 transitions.
[2024-11-08 19:16:50,146 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:50,146 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77
[2024-11-08 19:16:50,146 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:50,150 INFO  L225             Difference]: With dead ends: 1728
[2024-11-08 19:16:50,150 INFO  L226             Difference]: Without dead ends: 887
[2024-11-08 19:16:50,151 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-08 19:16:50,152 INFO  L432           NwaCegarLoop]: 1158 mSDtfsCounter, 1222 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 4618 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:50,152 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 4618 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 19:16:50,153 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2024-11-08 19:16:50,164 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883.
[2024-11-08 19:16:50,165 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:50,167 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:50,167 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 77
[2024-11-08 19:16:50,167 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:50,168 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:50,168 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:50,168 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:50,168 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-11-08 19:16:50,169 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:50,169 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:50,169 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-08 19:16:50,169 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:50,170 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:50,171 INFO  L85        PathProgramCache]: Analyzing trace with hash -320283564, now seen corresponding path program 1 times
[2024-11-08 19:16:50,171 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:50,171 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158357216]
[2024-11-08 19:16:50,171 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:50,171 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:50,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:51,142 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:51,142 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:51,143 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158357216]
[2024-11-08 19:16:51,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158357216] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:51,143 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:51,143 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:16:51,143 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385231348]
[2024-11-08 19:16:51,143 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:51,144 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:16:51,144 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:51,144 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:16:51,144 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:16:51,144 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:51,472 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:51,473 INFO  L93              Difference]: Finished difference Result 1728 states and 2565 transitions.
[2024-11-08 19:16:51,473 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:51,473 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2024-11-08 19:16:51,474 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:51,476 INFO  L225             Difference]: With dead ends: 1728
[2024-11-08 19:16:51,476 INFO  L226             Difference]: Without dead ends: 887
[2024-11-08 19:16:51,478 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-08 19:16:51,479 INFO  L432           NwaCegarLoop]: 1158 mSDtfsCounter, 1208 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 4618 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:51,479 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 4618 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 19:16:51,484 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2024-11-08 19:16:51,494 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883.
[2024-11-08 19:16:51,496 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:51,498 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:51,498 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 78
[2024-11-08 19:16:51,498 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:51,498 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:51,498 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:51,499 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:51,499 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-08 19:16:51,499 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:51,500 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:51,500 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-08 19:16:51,500 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:51,500 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:51,500 INFO  L85        PathProgramCache]: Analyzing trace with hash 1515352370, now seen corresponding path program 1 times
[2024-11-08 19:16:51,501 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:51,501 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056193091]
[2024-11-08 19:16:51,501 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:51,501 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:51,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:52,281 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:52,281 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:52,281 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056193091]
[2024-11-08 19:16:52,281 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056193091] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:52,282 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:52,282 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:16:52,283 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713950796]
[2024-11-08 19:16:52,283 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:52,283 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:16:52,284 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:52,284 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:16:52,284 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:16:52,284 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:52,552 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:52,552 INFO  L93              Difference]: Finished difference Result 1728 states and 2565 transitions.
[2024-11-08 19:16:52,552 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:16:52,553 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79
[2024-11-08 19:16:52,553 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:52,556 INFO  L225             Difference]: With dead ends: 1728
[2024-11-08 19:16:52,556 INFO  L226             Difference]: Without dead ends: 887
[2024-11-08 19:16:52,557 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:16:52,558 INFO  L432           NwaCegarLoop]: 1158 mSDtfsCounter, 1201 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:52,558 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 3467 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 19:16:52,560 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 887 states.
[2024-11-08 19:16:52,570 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883.
[2024-11-08 19:16:52,572 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:52,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions.
[2024-11-08 19:16:52,573 INFO  L78                 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 79
[2024-11-08 19:16:52,574 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:52,574 INFO  L471      AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions.
[2024-11-08 19:16:52,574 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:52,574 INFO  L276                IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions.
[2024-11-08 19:16:52,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-11-08 19:16:52,575 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:52,575 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:52,575 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-08 19:16:52,576 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:52,576 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:52,576 INFO  L85        PathProgramCache]: Analyzing trace with hash -1688891468, now seen corresponding path program 1 times
[2024-11-08 19:16:52,576 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:52,576 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655306747]
[2024-11-08 19:16:52,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:52,577 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:53,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:16:54,590 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:16:54,591 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:16:54,591 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655306747]
[2024-11-08 19:16:54,591 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655306747] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:16:54,591 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:16:54,591 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 19:16:54,592 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871516628]
[2024-11-08 19:16:54,592 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:16:54,592 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 19:16:54,593 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:16:54,593 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 19:16:54,593 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:16:54,593 INFO  L87              Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:54,945 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:16:54,945 INFO  L93              Difference]: Finished difference Result 2369 states and 3516 transitions.
[2024-11-08 19:16:54,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-08 19:16:54,948 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80
[2024-11-08 19:16:54,948 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:16:54,953 INFO  L225             Difference]: With dead ends: 2369
[2024-11-08 19:16:54,953 INFO  L226             Difference]: Without dead ends: 1528
[2024-11-08 19:16:54,957 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2024-11-08 19:16:54,958 INFO  L432           NwaCegarLoop]: 1220 mSDtfsCounter, 3043 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3043 SdHoareTripleChecker+Valid, 6095 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 19:16:54,958 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3043 Valid, 6095 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 19:16:54,960 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1528 states.
[2024-11-08 19:16:54,974 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 919.
[2024-11-08 19:16:54,975 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 919 states, 918 states have (on average 1.4869281045751634) internal successors, (1365), 918 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:54,977 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1365 transitions.
[2024-11-08 19:16:54,978 INFO  L78                 Accepts]: Start accepts. Automaton has 919 states and 1365 transitions. Word has length 80
[2024-11-08 19:16:54,978 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:16:54,978 INFO  L471      AbstractCegarLoop]: Abstraction has 919 states and 1365 transitions.
[2024-11-08 19:16:54,979 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:16:54,979 INFO  L276                IsEmpty]: Start isEmpty. Operand 919 states and 1365 transitions.
[2024-11-08 19:16:54,985 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 480
[2024-11-08 19:16:54,985 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:16:54,986 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:16:54,986 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-08 19:16:54,986 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:16:54,987 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:16:54,987 INFO  L85        PathProgramCache]: Analyzing trace with hash 1151264780, now seen corresponding path program 1 times
[2024-11-08 19:16:54,987 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:16:54,987 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024427870]
[2024-11-08 19:16:54,987 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:16:54,987 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:16:59,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:17:01,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 19:17:01,235 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:17:01,236 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024427870]
[2024-11-08 19:17:01,236 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024427870] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 19:17:01,236 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746927144]
[2024-11-08 19:17:01,236 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:17:01,236 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:17:01,237 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 19:17:01,239 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)
[2024-11-08 19:17:01,240 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 19:17:03,232 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:17:03,256 INFO  L255         TraceCheckSpWp]: Trace formula consists of 3699 conjuncts, 39 conjuncts are in the unsatisfiable core
[2024-11-08 19:17:03,295 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 19:17:06,275 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:17:06,275 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 19:17:08,953 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 19:17:08,954 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [746927144] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 19:17:08,954 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 19:17:08,954 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 8] total 18
[2024-11-08 19:17:08,955 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025555825]
[2024-11-08 19:17:08,955 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 19:17:08,956 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-08 19:17:08,957 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:17:08,959 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-08 19:17:08,959 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306
[2024-11-08 19:17:08,960 INFO  L87              Difference]: Start difference. First operand 919 states and 1365 transitions. Second operand  has 18 states, 18 states have (on average 77.27777777777777) internal successors, (1391), 18 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:17:10,696 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:17:10,696 INFO  L93              Difference]: Finished difference Result 1991 states and 2948 transitions.
[2024-11-08 19:17:10,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-08 19:17:10,698 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 18 states have (on average 77.27777777777777) internal successors, (1391), 18 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 479
[2024-11-08 19:17:10,700 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:17:10,705 INFO  L225             Difference]: With dead ends: 1991
[2024-11-08 19:17:10,706 INFO  L226             Difference]: Without dead ends: 1150
[2024-11-08 19:17:10,708 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 965 GetRequests, 946 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420
[2024-11-08 19:17:10,708 INFO  L432           NwaCegarLoop]: 872 mSDtfsCounter, 3801 mSDsluCounter, 6784 mSDsCounter, 0 mSdLazyCounter, 3404 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3801 SdHoareTripleChecker+Valid, 7656 SdHoareTripleChecker+Invalid, 3406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-08 19:17:10,709 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3801 Valid, 7656 Invalid, 3406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3404 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-08 19:17:10,711 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1150 states.
[2024-11-08 19:17:10,726 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 919.
[2024-11-08 19:17:10,729 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 919 states, 918 states have (on average 1.4869281045751634) internal successors, (1365), 918 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:17:10,732 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1365 transitions.
[2024-11-08 19:17:10,732 INFO  L78                 Accepts]: Start accepts. Automaton has 919 states and 1365 transitions. Word has length 479
[2024-11-08 19:17:10,733 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:17:10,733 INFO  L471      AbstractCegarLoop]: Abstraction has 919 states and 1365 transitions.
[2024-11-08 19:17:10,734 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 77.27777777777777) internal successors, (1391), 18 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:17:10,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 919 states and 1365 transitions.
[2024-11-08 19:17:10,741 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 481
[2024-11-08 19:17:10,741 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:17:10,742 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:17:10,781 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 19:17:10,942 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,SelfDestructingSolverStorable22
[2024-11-08 19:17:10,944 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:17:10,944 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:17:10,945 INFO  L85        PathProgramCache]: Analyzing trace with hash -1851303939, now seen corresponding path program 1 times
[2024-11-08 19:17:10,945 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:17:10,946 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025062806]
[2024-11-08 19:17:10,946 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:17:10,947 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:17:17,707 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:17:22,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:17:22,449 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:17:22,449 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025062806]
[2024-11-08 19:17:22,450 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025062806] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:17:22,450 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:17:22,450 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-08 19:17:22,450 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725296591]
[2024-11-08 19:17:22,450 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:17:22,451 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 19:17:22,451 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:17:22,452 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 19:17:22,452 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-11-08 19:17:22,453 INFO  L87              Difference]: Start difference. First operand 919 states and 1365 transitions. Second operand  has 10 states, 10 states have (on average 48.0) internal successors, (480), 10 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:17:22,773 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:17:22,773 INFO  L93              Difference]: Finished difference Result 2202 states and 3266 transitions.
[2024-11-08 19:17:22,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-08 19:17:22,774 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 48.0) internal successors, (480), 10 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 480
[2024-11-08 19:17:22,774 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:17:22,779 INFO  L225             Difference]: With dead ends: 2202
[2024-11-08 19:17:22,780 INFO  L226             Difference]: Without dead ends: 1361
[2024-11-08 19:17:22,781 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306
[2024-11-08 19:17:22,782 INFO  L432           NwaCegarLoop]: 1236 mSDtfsCounter, 2426 mSDsluCounter, 7950 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 9186 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 19:17:22,782 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 9186 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 19:17:22,784 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1361 states.
[2024-11-08 19:17:22,807 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1304.
[2024-11-08 19:17:22,814 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1304 states, 1303 states have (on average 1.4819646968534153) internal successors, (1931), 1303 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:17:22,816 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1931 transitions.
[2024-11-08 19:17:22,819 INFO  L78                 Accepts]: Start accepts. Automaton has 1304 states and 1931 transitions. Word has length 480
[2024-11-08 19:17:22,820 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:17:22,820 INFO  L471      AbstractCegarLoop]: Abstraction has 1304 states and 1931 transitions.
[2024-11-08 19:17:22,821 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 48.0) internal successors, (480), 10 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 19:17:22,821 INFO  L276                IsEmpty]: Start isEmpty. Operand 1304 states and 1931 transitions.
[2024-11-08 19:17:22,831 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 482
[2024-11-08 19:17:22,834 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:17:22,835 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:17:22,835 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-11-08 19:17:22,835 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:17:22,836 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:17:22,836 INFO  L85        PathProgramCache]: Analyzing trace with hash -1553173598, now seen corresponding path program 1 times
[2024-11-08 19:17:22,836 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:17:22,836 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32876814]
[2024-11-08 19:17:22,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:17:22,837 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms