./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label00.c --full-output --architecture 32bit


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


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/eca-rers2012/Problem13_label00.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1908a46c2d6c2885901135dd96252b8ed820acb687d93cae536846c5c1656ef1
--- Real Ultimate output ---
This is Ultimate 0.2.5-?-c7c6ca5-m
[2024-11-08 11:18:42,001 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 11:18:42,081 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 11:18:42,087 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 11:18:42,089 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 11:18:42,121 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 11:18:42,123 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 11:18:42,123 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 11:18:42,124 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 11:18:42,124 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 11:18:42,125 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 11:18:42,125 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 11:18:42,126 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 11:18:42,128 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 11:18:42,128 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 11:18:42,129 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 11:18:42,129 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 11:18:42,129 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-08 11:18:42,129 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 11:18:42,130 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-08 11:18:42,130 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 11:18:42,131 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 11:18:42,131 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 11:18:42,134 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 11:18:42,134 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 11:18:42,135 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-08 11:18:42,135 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 11:18:42,135 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 11:18:42,135 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 11:18:42,135 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 11:18:42,136 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 11:18:42,136 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 11:18:42,136 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 11:18:42,136 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 11:18:42,136 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 11:18:42,137 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 11:18:42,137 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 11:18:42,137 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 11:18:42,137 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 11:18:42,139 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 11:18:42,139 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 11:18:42,139 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 11:18:42,140 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1908a46c2d6c2885901135dd96252b8ed820acb687d93cae536846c5c1656ef1
[2024-11-08 11:18:42,373 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 11:18:42,396 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 11:18:42,400 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 11:18:42,401 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 11:18:42,401 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 11:18:42,403 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label00.c
[2024-11-08 11:18:43,890 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 11:18:44,375 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 11:18:44,377 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label00.c
[2024-11-08 11:18:44,424 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a16acc1c/7c23c5be715a44cfa98dc61f404d74da/FLAGf8b6a4067
[2024-11-08 11:18:44,444 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a16acc1c/7c23c5be715a44cfa98dc61f404d74da
[2024-11-08 11:18:44,446 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 11:18:44,449 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 11:18:44,450 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 11:18:44,450 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 11:18:44,455 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 11:18:44,455 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:18:44" (1/1) ...
[2024-11-08 11:18:44,456 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5026665a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:44, skipping insertion in model container
[2024-11-08 11:18:44,458 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:18:44" (1/1) ...
[2024-11-08 11:18:44,558 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 11:18:44,821 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label00.c[5434,5447]
[2024-11-08 11:18:45,603 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 11:18:45,612 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 11:18:45,636 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label00.c[5434,5447]
[2024-11-08 11:18:46,129 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 11:18:46,156 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 11:18:46,157 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46 WrapperNode
[2024-11-08 11:18:46,157 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 11:18:46,158 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 11:18:46,159 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 11:18:46,159 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 11:18:46,165 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:46,227 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:46,750 INFO  L138                Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587
[2024-11-08 11:18:46,751 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 11:18:46,752 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 11:18:46,752 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 11:18:46,752 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 11:18:46,762 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:46,763 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:46,862 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:47,140 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 11:18:47,140 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:47,140 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:47,418 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:47,468 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:47,520 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:47,565 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:47,687 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 11:18:47,688 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 11:18:47,688 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 11:18:47,688 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 11:18:47,689 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (1/1) ...
[2024-11-08 11:18:47,703 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 11:18:47,724 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:18:47,742 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 11:18:47,745 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 11:18:47,792 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 11:18:47,792 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 11:18:47,793 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 11:18:47,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 11:18:47,872 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 11:18:47,874 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 11:18:53,839 INFO  L?                        ?]: Removed 738 outVars from TransFormulas that were not future-live.
[2024-11-08 11:18:53,839 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 11:18:53,880 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 11:18:53,882 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 11:18:53,883 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:18:53 BoogieIcfgContainer
[2024-11-08 11:18:53,883 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 11:18:53,885 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 11:18:53,885 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 11:18:53,888 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 11:18:53,889 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:18:44" (1/3) ...
[2024-11-08 11:18:53,889 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5097ec0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:18:53, skipping insertion in model container
[2024-11-08 11:18:53,889 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:46" (2/3) ...
[2024-11-08 11:18:53,890 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5097ec0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:18:53, skipping insertion in model container
[2024-11-08 11:18:53,890 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:18:53" (3/3) ...
[2024-11-08 11:18:53,891 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem13_label00.c
[2024-11-08 11:18:53,908 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 11:18:53,908 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 11:18:54,006 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 11:18:54,015 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;@317b9c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 11:18:54,015 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 11:18:54,026 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 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 11:18:54,033 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2024-11-08 11:18:54,033 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:18:54,034 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]
[2024-11-08 11:18:54,035 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:18:54,041 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:18:54,042 INFO  L85        PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times
[2024-11-08 11:18:54,051 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:18:54,052 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452035528]
[2024-11-08 11:18:54,052 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:18:54,052 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:18:54,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:18:54,391 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 11:18:54,391 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:18:54,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452035528]
[2024-11-08 11:18:54,392 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452035528] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:18:54,393 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:18:54,393 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:18:54,394 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804577288]
[2024-11-08 11:18:54,395 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:18:54,399 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:18:54,399 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:18:54,421 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:18:54,421 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:18:54,426 INFO  L87              Difference]: Start difference. First operand  has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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 11:18:58,478 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:18:58,478 INFO  L93              Difference]: Finished difference Result 3082 states and 5689 transitions.
[2024-11-08 11:18:58,481 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:18:58,482 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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 37
[2024-11-08 11:18:58,483 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:18:58,515 INFO  L225             Difference]: With dead ends: 3082
[2024-11-08 11:18:58,515 INFO  L226             Difference]: Without dead ends: 1899
[2024-11-08 11:18:58,525 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:18:58,529 INFO  L432           NwaCegarLoop]: 470 mSDtfsCounter, 1002 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 2955 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 3554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2024-11-08 11:18:58,530 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 641 Invalid, 3554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2955 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2024-11-08 11:18:58,552 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1899 states.
[2024-11-08 11:18:58,640 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1894.
[2024-11-08 11:18:58,645 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1894 states, 1893 states have (on average 1.7374537770734284) internal successors, (3289), 1893 states have internal predecessors, (3289), 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 11:18:58,651 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 3289 transitions.
[2024-11-08 11:18:58,653 INFO  L78                 Accepts]: Start accepts. Automaton has 1894 states and 3289 transitions. Word has length 37
[2024-11-08 11:18:58,653 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:18:58,654 INFO  L471      AbstractCegarLoop]: Abstraction has 1894 states and 3289 transitions.
[2024-11-08 11:18:58,654 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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 11:18:58,654 INFO  L276                IsEmpty]: Start isEmpty. Operand 1894 states and 3289 transitions.
[2024-11-08 11:18:58,657 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-08 11:18:58,658 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:18:58,658 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:58,658 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 11:18:58,659 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:18:58,659 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:18:58,659 INFO  L85        PathProgramCache]: Analyzing trace with hash 987197602, now seen corresponding path program 1 times
[2024-11-08 11:18:58,659 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:18:58,659 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960102345]
[2024-11-08 11:18:58,660 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:18:58,660 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:18:58,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:18:58,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:18:58,995 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:18:58,995 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960102345]
[2024-11-08 11:18:58,995 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960102345] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:18:58,996 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:18:58,996 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:18:58,996 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561207910]
[2024-11-08 11:18:58,996 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:18:58,997 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:18:58,998 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:18:58,998 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:18:58,999 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:18:58,999 INFO  L87              Difference]: Start difference. First operand 1894 states and 3289 transitions. Second operand  has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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 11:19:02,726 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:02,726 INFO  L93              Difference]: Finished difference Result 5384 states and 9441 transitions.
[2024-11-08 11:19:02,727 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:02,727 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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 102
[2024-11-08 11:19:02,727 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:02,741 INFO  L225             Difference]: With dead ends: 5384
[2024-11-08 11:19:02,742 INFO  L226             Difference]: Without dead ends: 3492
[2024-11-08 11:19:02,746 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:02,747 INFO  L432           NwaCegarLoop]: 860 mSDtfsCounter, 922 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:02,748 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1013 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2024-11-08 11:19:02,752 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3492 states.
[2024-11-08 11:19:02,797 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3492 to 3491.
[2024-11-08 11:19:02,804 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3491 states, 3490 states have (on average 1.5383954154727795) internal successors, (5369), 3490 states have internal predecessors, (5369), 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 11:19:02,811 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 5369 transitions.
[2024-11-08 11:19:02,812 INFO  L78                 Accepts]: Start accepts. Automaton has 3491 states and 5369 transitions. Word has length 102
[2024-11-08 11:19:02,812 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:02,812 INFO  L471      AbstractCegarLoop]: Abstraction has 3491 states and 5369 transitions.
[2024-11-08 11:19:02,813 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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 11:19:02,813 INFO  L276                IsEmpty]: Start isEmpty. Operand 3491 states and 5369 transitions.
[2024-11-08 11:19:02,817 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2024-11-08 11:19:02,820 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:02,821 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:02,821 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 11:19:02,822 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:02,822 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:02,823 INFO  L85        PathProgramCache]: Analyzing trace with hash 639358663, now seen corresponding path program 1 times
[2024-11-08 11:19:02,826 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:02,826 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211863067]
[2024-11-08 11:19:02,826 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:02,827 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:02,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:03,003 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:03,006 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:03,006 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211863067]
[2024-11-08 11:19:03,006 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211863067] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:03,006 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:03,006 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:19:03,007 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628688493]
[2024-11-08 11:19:03,008 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:03,009 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:03,009 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:03,010 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:03,010 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:03,010 INFO  L87              Difference]: Start difference. First operand 3491 states and 5369 transitions. Second operand  has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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 11:19:06,157 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:06,158 INFO  L93              Difference]: Finished difference Result 10169 states and 15700 transitions.
[2024-11-08 11:19:06,158 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:06,158 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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 104
[2024-11-08 11:19:06,159 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:06,182 INFO  L225             Difference]: With dead ends: 10169
[2024-11-08 11:19:06,182 INFO  L226             Difference]: Without dead ends: 6680
[2024-11-08 11:19:06,188 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:06,189 INFO  L432           NwaCegarLoop]: 714 mSDtfsCounter, 977 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 3308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:06,189 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 847 Invalid, 3308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-08 11:19:06,196 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6680 states.
[2024-11-08 11:19:06,296 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6669.
[2024-11-08 11:19:06,308 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6669 states, 6668 states have (on average 1.375224955008998) internal successors, (9170), 6668 states have internal predecessors, (9170), 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 11:19:06,320 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6669 states to 6669 states and 9170 transitions.
[2024-11-08 11:19:06,321 INFO  L78                 Accepts]: Start accepts. Automaton has 6669 states and 9170 transitions. Word has length 104
[2024-11-08 11:19:06,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:06,322 INFO  L471      AbstractCegarLoop]: Abstraction has 6669 states and 9170 transitions.
[2024-11-08 11:19:06,322 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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 11:19:06,325 INFO  L276                IsEmpty]: Start isEmpty. Operand 6669 states and 9170 transitions.
[2024-11-08 11:19:06,327 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2024-11-08 11:19:06,327 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:06,327 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:06,327 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 11:19:06,328 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:06,329 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:06,329 INFO  L85        PathProgramCache]: Analyzing trace with hash -1730184235, now seen corresponding path program 1 times
[2024-11-08 11:19:06,330 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:06,330 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146593688]
[2024-11-08 11:19:06,330 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:06,330 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:06,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:06,743 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:06,743 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:06,743 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146593688]
[2024-11-08 11:19:06,743 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146593688] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:06,745 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:06,745 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:19:06,745 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980530287]
[2024-11-08 11:19:06,745 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:06,745 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:06,746 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:06,746 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:06,748 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:06,748 INFO  L87              Difference]: Start difference. First operand 6669 states and 9170 transitions. Second operand  has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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 11:19:09,442 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:09,442 INFO  L93              Difference]: Finished difference Result 14123 states and 19185 transitions.
[2024-11-08 11:19:09,443 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:09,443 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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 148
[2024-11-08 11:19:09,443 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:09,462 INFO  L225             Difference]: With dead ends: 14123
[2024-11-08 11:19:09,462 INFO  L226             Difference]: Without dead ends: 7456
[2024-11-08 11:19:09,471 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:09,473 INFO  L432           NwaCegarLoop]: 1086 mSDtfsCounter, 678 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:09,473 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1215 Invalid, 2577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-08 11:19:09,481 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7456 states.
[2024-11-08 11:19:09,610 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7456 to 7456.
[2024-11-08 11:19:09,623 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7456 states, 7455 states have (on average 1.3362843729040912) internal successors, (9962), 7455 states have internal predecessors, (9962), 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 11:19:09,640 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7456 states to 7456 states and 9962 transitions.
[2024-11-08 11:19:09,640 INFO  L78                 Accepts]: Start accepts. Automaton has 7456 states and 9962 transitions. Word has length 148
[2024-11-08 11:19:09,641 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:09,642 INFO  L471      AbstractCegarLoop]: Abstraction has 7456 states and 9962 transitions.
[2024-11-08 11:19:09,642 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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 11:19:09,642 INFO  L276                IsEmpty]: Start isEmpty. Operand 7456 states and 9962 transitions.
[2024-11-08 11:19:09,644 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2024-11-08 11:19:09,644 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:09,645 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:09,645 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 11:19:09,646 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:09,646 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:09,646 INFO  L85        PathProgramCache]: Analyzing trace with hash 2146930175, now seen corresponding path program 1 times
[2024-11-08 11:19:09,647 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:09,647 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490872101]
[2024-11-08 11:19:09,647 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:09,647 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:09,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:09,940 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:09,940 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:09,941 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490872101]
[2024-11-08 11:19:09,941 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490872101] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:09,941 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:09,941 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:09,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024464081]
[2024-11-08 11:19:09,942 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:09,942 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:19:09,942 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:09,943 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:19:09,943 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:19:09,944 INFO  L87              Difference]: Start difference. First operand 7456 states and 9962 transitions. Second operand  has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 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 11:19:16,058 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:16,058 INFO  L93              Difference]: Finished difference Result 26118 states and 35960 transitions.
[2024-11-08 11:19:16,059 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:19:16,060 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 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 162
[2024-11-08 11:19:16,061 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:16,102 INFO  L225             Difference]: With dead ends: 26118
[2024-11-08 11:19:16,103 INFO  L226             Difference]: Without dead ends: 19451
[2024-11-08 11:19:16,113 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:19:16,114 INFO  L432           NwaCegarLoop]: 898 mSDtfsCounter, 1654 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 6108 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 6757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 6108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:16,114 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 1071 Invalid, 6757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 6108 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2024-11-08 11:19:16,134 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19451 states.
[2024-11-08 11:19:16,347 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19451 to 19303.
[2024-11-08 11:19:16,387 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19303 states, 19302 states have (on average 1.2780540876593098) internal successors, (24669), 19302 states have internal predecessors, (24669), 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 11:19:16,414 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19303 states to 19303 states and 24669 transitions.
[2024-11-08 11:19:16,415 INFO  L78                 Accepts]: Start accepts. Automaton has 19303 states and 24669 transitions. Word has length 162
[2024-11-08 11:19:16,415 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:16,416 INFO  L471      AbstractCegarLoop]: Abstraction has 19303 states and 24669 transitions.
[2024-11-08 11:19:16,419 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 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 11:19:16,420 INFO  L276                IsEmpty]: Start isEmpty. Operand 19303 states and 24669 transitions.
[2024-11-08 11:19:16,423 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 245
[2024-11-08 11:19:16,423 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:16,423 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:16,423 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 11:19:16,424 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:16,424 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:16,424 INFO  L85        PathProgramCache]: Analyzing trace with hash -2096979721, now seen corresponding path program 1 times
[2024-11-08 11:19:16,424 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:16,425 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336599903]
[2024-11-08 11:19:16,425 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:16,425 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:16,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:16,768 INFO  L134       CoverageAnalysis]: Checked inductivity of 164 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:16,769 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:16,769 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336599903]
[2024-11-08 11:19:16,769 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336599903] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:16,769 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:16,769 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:16,770 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862283653]
[2024-11-08 11:19:16,770 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:16,771 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:16,771 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:16,772 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:16,772 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:16,772 INFO  L87              Difference]: Start difference. First operand 19303 states and 24669 transitions. Second operand  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 11:19:19,929 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:19,929 INFO  L93              Difference]: Finished difference Result 52786 states and 68383 transitions.
[2024-11-08 11:19:19,930 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:19,930 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 244
[2024-11-08 11:19:19,930 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:19,988 INFO  L225             Difference]: With dead ends: 52786
[2024-11-08 11:19:19,988 INFO  L226             Difference]: Without dead ends: 34272
[2024-11-08 11:19:20,012 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:20,015 INFO  L432           NwaCegarLoop]: 806 mSDtfsCounter, 854 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 924 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 3308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 924 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:20,016 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 925 Invalid, 3308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [924 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-08 11:19:20,057 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34272 states.
[2024-11-08 11:19:20,395 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34272 to 34262.
[2024-11-08 11:19:20,436 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 34262 states, 34261 states have (on average 1.2201920551063892) internal successors, (41805), 34261 states have internal predecessors, (41805), 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 11:19:20,480 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 34262 states to 34262 states and 41805 transitions.
[2024-11-08 11:19:20,481 INFO  L78                 Accepts]: Start accepts. Automaton has 34262 states and 41805 transitions. Word has length 244
[2024-11-08 11:19:20,481 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:20,481 INFO  L471      AbstractCegarLoop]: Abstraction has 34262 states and 41805 transitions.
[2024-11-08 11:19:20,482 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 11:19:20,482 INFO  L276                IsEmpty]: Start isEmpty. Operand 34262 states and 41805 transitions.
[2024-11-08 11:19:20,485 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 250
[2024-11-08 11:19:20,485 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:20,485 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 11:19:20,485 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 11:19:20,486 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:20,486 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:20,486 INFO  L85        PathProgramCache]: Analyzing trace with hash 1793922146, now seen corresponding path program 1 times
[2024-11-08 11:19:20,486 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:20,486 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557482256]
[2024-11-08 11:19:20,487 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:20,487 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:20,532 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:20,802 INFO  L134       CoverageAnalysis]: Checked inductivity of 164 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2024-11-08 11:19:20,802 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:20,802 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557482256]
[2024-11-08 11:19:20,802 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557482256] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:20,802 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:20,803 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 11:19:20,803 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025958378]
[2024-11-08 11:19:20,803 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:20,804 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:20,804 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:20,805 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:20,805 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:20,805 INFO  L87              Difference]: Start difference. First operand 34262 states and 41805 transitions. Second operand  has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 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 11:19:23,553 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:23,553 INFO  L93              Difference]: Finished difference Result 61438 states and 75980 transitions.
[2024-11-08 11:19:23,554 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:23,554 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 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 249
[2024-11-08 11:19:23,554 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:23,605 INFO  L225             Difference]: With dead ends: 61438
[2024-11-08 11:19:23,605 INFO  L226             Difference]: Without dead ends: 34271
[2024-11-08 11:19:23,636 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:23,639 INFO  L432           NwaCegarLoop]: 1027 mSDtfsCounter, 728 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:23,640 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1211 Invalid, 2718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2714 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-11-08 11:19:23,668 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34271 states.
[2024-11-08 11:19:23,928 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34271 to 34262.
[2024-11-08 11:19:23,958 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 34262 states, 34261 states have (on average 1.2190245468608623) internal successors, (41765), 34261 states have internal predecessors, (41765), 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 11:19:24,003 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 34262 states to 34262 states and 41765 transitions.
[2024-11-08 11:19:24,004 INFO  L78                 Accepts]: Start accepts. Automaton has 34262 states and 41765 transitions. Word has length 249
[2024-11-08 11:19:24,004 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:24,004 INFO  L471      AbstractCegarLoop]: Abstraction has 34262 states and 41765 transitions.
[2024-11-08 11:19:24,004 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 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 11:19:24,005 INFO  L276                IsEmpty]: Start isEmpty. Operand 34262 states and 41765 transitions.
[2024-11-08 11:19:24,007 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2024-11-08 11:19:24,007 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:24,008 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:24,008 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 11:19:24,008 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:24,008 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:24,009 INFO  L85        PathProgramCache]: Analyzing trace with hash 94841160, now seen corresponding path program 1 times
[2024-11-08 11:19:24,009 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:24,009 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471530192]
[2024-11-08 11:19:24,009 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:24,009 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:24,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:24,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 157 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:24,161 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:24,161 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471530192]
[2024-11-08 11:19:24,161 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471530192] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:24,161 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:24,161 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:24,162 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465077981]
[2024-11-08 11:19:24,162 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:24,162 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:24,162 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:24,163 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:24,163 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:24,163 INFO  L87              Difference]: Start difference. First operand 34262 states and 41765 transitions. Second operand  has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 11:19:27,652 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:27,653 INFO  L93              Difference]: Finished difference Result 92120 states and 113613 transitions.
[2024-11-08 11:19:27,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:27,654 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 251
[2024-11-08 11:19:27,654 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:27,743 INFO  L225             Difference]: With dead ends: 92120
[2024-11-08 11:19:27,744 INFO  L226             Difference]: Without dead ends: 57860
[2024-11-08 11:19:27,779 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:27,780 INFO  L432           NwaCegarLoop]: 1671 mSDtfsCounter, 947 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 3223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 813 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:27,780 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 1810 Invalid, 3223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [813 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-11-08 11:19:27,827 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57860 states.
[2024-11-08 11:19:28,233 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57860 to 55488.
[2024-11-08 11:19:28,279 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55488 states, 55487 states have (on average 1.184655865337827) internal successors, (65733), 55487 states have internal predecessors, (65733), 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 11:19:28,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55488 states to 55488 states and 65733 transitions.
[2024-11-08 11:19:28,356 INFO  L78                 Accepts]: Start accepts. Automaton has 55488 states and 65733 transitions. Word has length 251
[2024-11-08 11:19:28,357 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:28,357 INFO  L471      AbstractCegarLoop]: Abstraction has 55488 states and 65733 transitions.
[2024-11-08 11:19:28,357 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 11:19:28,357 INFO  L276                IsEmpty]: Start isEmpty. Operand 55488 states and 65733 transitions.
[2024-11-08 11:19:28,360 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2024-11-08 11:19:28,360 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:28,361 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:28,361 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 11:19:28,361 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:28,361 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:28,362 INFO  L85        PathProgramCache]: Analyzing trace with hash 375000993, now seen corresponding path program 1 times
[2024-11-08 11:19:28,362 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:28,362 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89944968]
[2024-11-08 11:19:28,362 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:28,362 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:28,402 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:28,647 INFO  L134       CoverageAnalysis]: Checked inductivity of 164 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 11:19:28,647 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:28,647 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89944968]
[2024-11-08 11:19:28,647 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89944968] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:28,647 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:28,647 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:28,647 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415029798]
[2024-11-08 11:19:28,648 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:28,649 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:28,649 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:28,649 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:28,650 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:28,650 INFO  L87              Difference]: Start difference. First operand 55488 states and 65733 transitions. Second operand  has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 11:19:31,778 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:31,778 INFO  L93              Difference]: Finished difference Result 129882 states and 153032 transitions.
[2024-11-08 11:19:31,779 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:31,779 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 258
[2024-11-08 11:19:31,780 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:31,870 INFO  L225             Difference]: With dead ends: 129882
[2024-11-08 11:19:31,871 INFO  L226             Difference]: Without dead ends: 75183
[2024-11-08 11:19:31,915 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:31,916 INFO  L432           NwaCegarLoop]: 1334 mSDtfsCounter, 982 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:31,916 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 1386 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2024-11-08 11:19:31,980 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75183 states.
[2024-11-08 11:19:32,761 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75183 to 74375.
[2024-11-08 11:19:32,806 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74375 states, 74374 states have (on average 1.1510877457175894) internal successors, (85611), 74374 states have internal predecessors, (85611), 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 11:19:32,908 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74375 states to 74375 states and 85611 transitions.
[2024-11-08 11:19:32,908 INFO  L78                 Accepts]: Start accepts. Automaton has 74375 states and 85611 transitions. Word has length 258
[2024-11-08 11:19:32,909 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:32,909 INFO  L471      AbstractCegarLoop]: Abstraction has 74375 states and 85611 transitions.
[2024-11-08 11:19:32,909 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 11:19:32,909 INFO  L276                IsEmpty]: Start isEmpty. Operand 74375 states and 85611 transitions.
[2024-11-08 11:19:32,915 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 334
[2024-11-08 11:19:32,916 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:32,916 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 11:19:32,916 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 11:19:32,916 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:32,917 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:32,917 INFO  L85        PathProgramCache]: Analyzing trace with hash -1534017762, now seen corresponding path program 1 times
[2024-11-08 11:19:32,917 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:32,917 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547612085]
[2024-11-08 11:19:32,917 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:32,917 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:32,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:33,562 INFO  L134       CoverageAnalysis]: Checked inductivity of 376 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked.
[2024-11-08 11:19:33,562 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:33,562 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547612085]
[2024-11-08 11:19:33,562 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547612085] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:33,562 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:33,563 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:33,563 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470427918]
[2024-11-08 11:19:33,563 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:33,563 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:33,564 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:33,564 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:33,564 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:33,565 INFO  L87              Difference]: Start difference. First operand 74375 states and 85611 transitions. Second operand  has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 11:19:37,446 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:37,450 INFO  L93              Difference]: Finished difference Result 168434 states and 195650 transitions.
[2024-11-08 11:19:37,451 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:37,452 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 333
[2024-11-08 11:19:37,452 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:37,585 INFO  L225             Difference]: With dead ends: 168434
[2024-11-08 11:19:37,585 INFO  L226             Difference]: Without dead ends: 94848
[2024-11-08 11:19:37,601 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 11:19:37,602 INFO  L432           NwaCegarLoop]: 686 mSDtfsCounter, 925 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 939 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 3324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 939 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:37,603 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 772 Invalid, 3324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [939 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2024-11-08 11:19:37,672 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94848 states.
[2024-11-08 11:19:38,578 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94848 to 94047.
[2024-11-08 11:19:38,660 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94047 states, 94046 states have (on average 1.1504370201816132) internal successors, (108194), 94046 states have internal predecessors, (108194), 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 11:19:38,982 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94047 states to 94047 states and 108194 transitions.
[2024-11-08 11:19:38,983 INFO  L78                 Accepts]: Start accepts. Automaton has 94047 states and 108194 transitions. Word has length 333
[2024-11-08 11:19:38,983 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:38,984 INFO  L471      AbstractCegarLoop]: Abstraction has 94047 states and 108194 transitions.
[2024-11-08 11:19:38,984 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 11:19:38,984 INFO  L276                IsEmpty]: Start isEmpty. Operand 94047 states and 108194 transitions.
[2024-11-08 11:19:38,995 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 344
[2024-11-08 11:19:38,995 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:38,995 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:38,995 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 11:19:38,996 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:38,996 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:39,000 INFO  L85        PathProgramCache]: Analyzing trace with hash 1775816411, now seen corresponding path program 1 times
[2024-11-08 11:19:39,000 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:39,000 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897687271]
[2024-11-08 11:19:39,001 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:39,001 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:39,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:39,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 395 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2024-11-08 11:19:39,397 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:39,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897687271]
[2024-11-08 11:19:39,397 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897687271] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:39,398 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 11:19:39,398 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 11:19:39,398 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620155464]
[2024-11-08 11:19:39,398 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:39,399 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 11:19:39,399 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:39,399 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 11:19:39,399 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:19:39,400 INFO  L87              Difference]: Start difference. First operand 94047 states and 108194 transitions. Second operand  has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 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 11:19:45,768 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:45,768 INFO  L93              Difference]: Finished difference Result 252041 states and 291133 transitions.
[2024-11-08 11:19:45,769 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 11:19:45,769 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 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 343
[2024-11-08 11:19:45,769 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:45,978 INFO  L225             Difference]: With dead ends: 252041
[2024-11-08 11:19:45,978 INFO  L226             Difference]: Without dead ends: 158783
[2024-11-08 11:19:46,037 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 11:19:46,038 INFO  L432           NwaCegarLoop]: 835 mSDtfsCounter, 1709 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 6222 mSolverCounterSat, 993 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 7215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 993 IncrementalHoareTripleChecker+Valid, 6222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:46,038 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 1030 Invalid, 7215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [993 Valid, 6222 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time]
[2024-11-08 11:19:46,347 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 158783 states.
[2024-11-08 11:19:48,054 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 158783 to 153933.
[2024-11-08 11:19:48,152 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 153933 states, 153932 states have (on average 1.1474092456409324) internal successors, (176623), 153932 states have internal predecessors, (176623), 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 11:19:48,372 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 153933 states to 153933 states and 176623 transitions.
[2024-11-08 11:19:48,373 INFO  L78                 Accepts]: Start accepts. Automaton has 153933 states and 176623 transitions. Word has length 343
[2024-11-08 11:19:48,373 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:48,373 INFO  L471      AbstractCegarLoop]: Abstraction has 153933 states and 176623 transitions.
[2024-11-08 11:19:48,373 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 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 11:19:48,373 INFO  L276                IsEmpty]: Start isEmpty. Operand 153933 states and 176623 transitions.
[2024-11-08 11:19:48,379 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 358
[2024-11-08 11:19:48,380 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:48,380 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:48,380 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-08 11:19:48,380 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:48,380 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:48,381 INFO  L85        PathProgramCache]: Analyzing trace with hash -2114247502, now seen corresponding path program 1 times
[2024-11-08 11:19:48,381 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:48,381 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838163863]
[2024-11-08 11:19:48,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:48,381 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:48,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:49,793 INFO  L134       CoverageAnalysis]: Checked inductivity of 374 backedges. 229 proven. 110 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2024-11-08 11:19:49,793 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:49,793 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838163863]
[2024-11-08 11:19:49,794 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838163863] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:19:49,794 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483156559]
[2024-11-08 11:19:49,794 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:49,794 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:19:49,795 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:19:49,796 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 11:19:49,798 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 11:19:49,980 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:49,983 INFO  L255         TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 11:19:50,000 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:19:50,211 INFO  L134       CoverageAnalysis]: Checked inductivity of 374 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked.
[2024-11-08 11:19:50,212 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 11:19:50,212 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [483156559] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:50,212 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 11:19:50,212 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8
[2024-11-08 11:19:50,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85585977]
[2024-11-08 11:19:50,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:50,213 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:50,214 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:50,214 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:50,214 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-08 11:19:50,215 INFO  L87              Difference]: Start difference. First operand 153933 states and 176623 transitions. Second operand  has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 11:19:53,599 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 11:19:53,599 INFO  L93              Difference]: Finished difference Result 304713 states and 349684 transitions.
[2024-11-08 11:19:53,599 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 11:19:53,600 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 357
[2024-11-08 11:19:53,600 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 11:19:53,773 INFO  L225             Difference]: With dead ends: 304713
[2024-11-08 11:19:53,773 INFO  L226             Difference]: Without dead ends: 151569
[2024-11-08 11:19:54,118 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-08 11:19:54,119 INFO  L432           NwaCegarLoop]: 1352 mSDtfsCounter, 1122 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-11-08 11:19:54,119 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 1434 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-11-08 11:19:54,244 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 151569 states.
[2024-11-08 11:19:55,652 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 151569 to 151568.
[2024-11-08 11:19:55,744 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 151568 states, 151567 states have (on average 1.1138176515996225) internal successors, (168818), 151567 states have internal predecessors, (168818), 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 11:19:55,944 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 151568 states to 151568 states and 168818 transitions.
[2024-11-08 11:19:55,945 INFO  L78                 Accepts]: Start accepts. Automaton has 151568 states and 168818 transitions. Word has length 357
[2024-11-08 11:19:55,946 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 11:19:55,946 INFO  L471      AbstractCegarLoop]: Abstraction has 151568 states and 168818 transitions.
[2024-11-08 11:19:55,946 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 11:19:55,946 INFO  L276                IsEmpty]: Start isEmpty. Operand 151568 states and 168818 transitions.
[2024-11-08 11:19:55,952 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 386
[2024-11-08 11:19:55,952 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 11:19:55,952 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 11:19:55,968 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 11:19:56,157 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,SelfDestructingSolverStorable11
[2024-11-08 11:19:56,157 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 11:19:56,158 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 11:19:56,158 INFO  L85        PathProgramCache]: Analyzing trace with hash 258669050, now seen corresponding path program 1 times
[2024-11-08 11:19:56,158 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 11:19:56,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596687848]
[2024-11-08 11:19:56,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:56,158 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 11:19:56,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:57,778 INFO  L134       CoverageAnalysis]: Checked inductivity of 430 backedges. 285 proven. 110 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2024-11-08 11:19:57,779 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 11:19:57,779 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596687848]
[2024-11-08 11:19:57,779 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596687848] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 11:19:57,779 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201940363]
[2024-11-08 11:19:57,780 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 11:19:57,780 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 11:19:57,780 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 11:19:57,782 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 11:19:57,783 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 11:19:57,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 11:19:57,969 INFO  L255         TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 11:19:57,978 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 11:19:58,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 430 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked.
[2024-11-08 11:19:58,143 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 11:19:58,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201940363] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 11:19:58,143 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 11:19:58,144 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-11-08 11:19:58,144 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154684368]
[2024-11-08 11:19:58,144 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 11:19:58,145 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 11:19:58,145 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 11:19:58,145 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 11:19:58,146 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-08 11:19:58,146 INFO  L87              Difference]: Start difference. First operand 151568 states and 168818 transitions. Second operand  has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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)