./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.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/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.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 776b90327165ac118ff91f6400c534443904a40947197045cc27be476415edd1
--- Real Ultimate output ---
This is Ultimate 0.2.5-?-c7c6ca5-m
[2024-11-08 15:51:39,603 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 15:51:39,678 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 15:51:39,685 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 15:51:39,686 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 15:51:39,723 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 15:51:39,724 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 15:51:39,724 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 15:51:39,727 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 15:51:39,728 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 15:51:39,728 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 15:51:39,728 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 15:51:39,730 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 15:51:39,730 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 15:51:39,733 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 15:51:39,733 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 15:51:39,734 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 15:51:39,734 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-08 15:51:39,734 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 15:51:39,735 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-08 15:51:39,735 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 15:51:39,739 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 15:51:39,740 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 15:51:39,740 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 15:51:39,740 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 15:51:39,740 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-08 15:51:39,741 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 15:51:39,741 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 15:51:39,741 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 15:51:39,742 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 15:51:39,742 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 15:51:39,742 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 15:51:39,742 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 15:51:39,743 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 15:51:39,743 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 15:51:39,743 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 15:51:39,746 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 15:51:39,747 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 15:51:39,747 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 15:51:39,747 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 15:51:39,747 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 15:51:39,748 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 15:51:39,748 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 -> 776b90327165ac118ff91f6400c534443904a40947197045cc27be476415edd1
[2024-11-08 15:51:40,031 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 15:51:40,058 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 15:51:40,061 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 15:51:40,063 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 15:51:40,063 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 15:51:40,064 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c
[2024-11-08 15:51:41,484 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 15:51:41,715 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 15:51:41,716 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c
[2024-11-08 15:51:41,731 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98544e052/fce01d813b5e4490bbcc74e8037b4c43/FLAG533ab651c
[2024-11-08 15:51:42,047 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98544e052/fce01d813b5e4490bbcc74e8037b4c43
[2024-11-08 15:51:42,049 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 15:51:42,050 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 15:51:42,051 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 15:51:42,051 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 15:51:42,073 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 15:51:42,075 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,078 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fab1a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42, skipping insertion in model container
[2024-11-08 15:51:42,078 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,156 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 15:51:42,445 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/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12832,12845]
[2024-11-08 15:51:42,522 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 15:51:42,541 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 15:51:42,599 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/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12832,12845]
[2024-11-08 15:51:42,650 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 15:51:42,675 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 15:51:42,676 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42 WrapperNode
[2024-11-08 15:51:42,676 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 15:51:42,678 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 15:51:42,678 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 15:51:42,678 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 15:51:42,685 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,703 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,777 INFO  L138                Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1363
[2024-11-08 15:51:42,778 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 15:51:42,779 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 15:51:42,779 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 15:51:42,779 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 15:51:42,793 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,793 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,801 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,846 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 15:51:42,846 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,846 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,881 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,896 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,905 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,911 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,920 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 15:51:42,921 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 15:51:42,921 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 15:51:42,921 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 15:51:42,922 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (1/1) ...
[2024-11-08 15:51:42,930 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 15:51:42,942 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 15:51:42,960 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 15:51:42,963 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 15:51:43,008 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 15:51:43,009 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 15:51:43,010 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 15:51:43,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 15:51:43,186 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 15:51:43,188 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 15:51:44,394 INFO  L?                        ?]: Removed 120 outVars from TransFormulas that were not future-live.
[2024-11-08 15:51:44,395 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 15:51:44,422 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 15:51:44,422 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 15:51:44,423 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:51:44 BoogieIcfgContainer
[2024-11-08 15:51:44,423 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 15:51:44,425 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 15:51:44,425 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 15:51:44,428 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 15:51:44,428 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:51:42" (1/3) ...
[2024-11-08 15:51:44,429 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5beec381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:51:44, skipping insertion in model container
[2024-11-08 15:51:44,430 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:51:42" (2/3) ...
[2024-11-08 15:51:44,431 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5beec381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:51:44, skipping insertion in model container
[2024-11-08 15:51:44,431 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:51:44" (3/3) ...
[2024-11-08 15:51:44,432 INFO  L112   eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c
[2024-11-08 15:51:44,449 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 15:51:44,450 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 15:51:44,525 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 15:51:44,533 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;@7527f406, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 15:51:44,534 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 15:51:44,542 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 319 states, 317 states have (on average 1.804416403785489) internal successors, (572), 318 states have internal predecessors, (572), 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 15:51:44,560 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-08 15:51:44,560 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:44,561 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:44,562 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:44,568 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:44,568 INFO  L85        PathProgramCache]: Analyzing trace with hash 304488522, now seen corresponding path program 1 times
[2024-11-08 15:51:44,577 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:44,577 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299534732]
[2024-11-08 15:51:44,578 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:44,578 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:44,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:45,337 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 15:51:45,340 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:45,340 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299534732]
[2024-11-08 15:51:45,341 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299534732] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:45,341 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:45,342 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 15:51:45,343 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868033671]
[2024-11-08 15:51:45,344 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:45,349 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 15:51:45,349 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:45,377 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 15:51:45,379 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 15:51:45,382 INFO  L87              Difference]: Start difference. First operand  has 319 states, 317 states have (on average 1.804416403785489) internal successors, (572), 318 states have internal predecessors, (572), 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 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 15:51:45,522 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:45,523 INFO  L93              Difference]: Finished difference Result 568 states and 991 transitions.
[2024-11-08 15:51:45,524 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 15:51:45,526 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111
[2024-11-08 15:51:45,526 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:45,540 INFO  L225             Difference]: With dead ends: 568
[2024-11-08 15:51:45,540 INFO  L226             Difference]: Without dead ends: 432
[2024-11-08 15:51:45,544 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 15:51:45,547 INFO  L432           NwaCegarLoop]: 728 mSDtfsCounter, 222 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:45,548 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1218 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 15:51:45,570 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 432 states.
[2024-11-08 15:51:45,609 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 430.
[2024-11-08 15:51:45,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 430 states, 429 states have (on average 1.6643356643356644) internal successors, (714), 429 states have internal predecessors, (714), 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 15:51:45,614 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 714 transitions.
[2024-11-08 15:51:45,616 INFO  L78                 Accepts]: Start accepts. Automaton has 430 states and 714 transitions. Word has length 111
[2024-11-08 15:51:45,616 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:45,617 INFO  L471      AbstractCegarLoop]: Abstraction has 430 states and 714 transitions.
[2024-11-08 15:51:45,617 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 15:51:45,617 INFO  L276                IsEmpty]: Start isEmpty. Operand 430 states and 714 transitions.
[2024-11-08 15:51:45,621 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-08 15:51:45,621 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:45,622 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:45,622 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 15:51:45,623 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:45,623 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:45,623 INFO  L85        PathProgramCache]: Analyzing trace with hash -1517208970, now seen corresponding path program 1 times
[2024-11-08 15:51:45,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:45,624 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515838844]
[2024-11-08 15:51:45,624 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:45,624 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:45,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:45,904 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 15:51:45,905 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:45,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515838844]
[2024-11-08 15:51:45,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515838844] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:45,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:45,906 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 15:51:45,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520436011]
[2024-11-08 15:51:45,906 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:45,908 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 15:51:45,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:45,909 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 15:51:45,910 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 15:51:45,910 INFO  L87              Difference]: Start difference. First operand 430 states and 714 transitions. Second operand  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 15:51:45,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:45,960 INFO  L93              Difference]: Finished difference Result 660 states and 1105 transitions.
[2024-11-08 15:51:45,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 15:51:45,961 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114
[2024-11-08 15:51:45,962 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:45,966 INFO  L225             Difference]: With dead ends: 660
[2024-11-08 15:51:45,968 INFO  L226             Difference]: Without dead ends: 533
[2024-11-08 15:51:45,969 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 15:51:45,970 INFO  L432           NwaCegarLoop]: 685 mSDtfsCounter, 196 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:45,970 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1173 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 15:51:45,974 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 533 states.
[2024-11-08 15:51:46,004 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531.
[2024-11-08 15:51:46,009 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 531 states, 530 states have (on average 1.6716981132075472) internal successors, (886), 530 states have internal predecessors, (886), 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 15:51:46,011 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 886 transitions.
[2024-11-08 15:51:46,015 INFO  L78                 Accepts]: Start accepts. Automaton has 531 states and 886 transitions. Word has length 114
[2024-11-08 15:51:46,015 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:46,015 INFO  L471      AbstractCegarLoop]: Abstraction has 531 states and 886 transitions.
[2024-11-08 15:51:46,016 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 15:51:46,016 INFO  L276                IsEmpty]: Start isEmpty. Operand 531 states and 886 transitions.
[2024-11-08 15:51:46,018 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-08 15:51:46,018 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:46,022 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:46,023 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 15:51:46,023 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:46,024 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:46,024 INFO  L85        PathProgramCache]: Analyzing trace with hash -1179194652, now seen corresponding path program 1 times
[2024-11-08 15:51:46,024 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:46,024 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060757299]
[2024-11-08 15:51:46,024 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:46,024 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:46,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:46,270 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 15:51:46,272 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:46,272 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060757299]
[2024-11-08 15:51:46,272 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060757299] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:46,272 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:46,273 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 15:51:46,273 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090670417]
[2024-11-08 15:51:46,273 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:46,274 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 15:51:46,275 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:46,276 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 15:51:46,276 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 15:51:46,277 INFO  L87              Difference]: Start difference. First operand 531 states and 886 transitions. Second operand  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 15:51:46,314 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:46,314 INFO  L93              Difference]: Finished difference Result 1184 states and 1985 transitions.
[2024-11-08 15:51:46,315 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 15:51:46,315 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114
[2024-11-08 15:51:46,317 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:46,321 INFO  L225             Difference]: With dead ends: 1184
[2024-11-08 15:51:46,321 INFO  L226             Difference]: Without dead ends: 844
[2024-11-08 15:51:46,323 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 15:51:46,326 INFO  L432           NwaCegarLoop]: 665 mSDtfsCounter, 189 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:46,327 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1151 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 15:51:46,328 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 844 states.
[2024-11-08 15:51:46,346 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 842.
[2024-11-08 15:51:46,348 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 842 states, 841 states have (on average 1.671819262782402) internal successors, (1406), 841 states have internal predecessors, (1406), 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 15:51:46,351 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1406 transitions.
[2024-11-08 15:51:46,351 INFO  L78                 Accepts]: Start accepts. Automaton has 842 states and 1406 transitions. Word has length 114
[2024-11-08 15:51:46,352 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:46,352 INFO  L471      AbstractCegarLoop]: Abstraction has 842 states and 1406 transitions.
[2024-11-08 15:51:46,352 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 15:51:46,353 INFO  L276                IsEmpty]: Start isEmpty. Operand 842 states and 1406 transitions.
[2024-11-08 15:51:46,354 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2024-11-08 15:51:46,355 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:46,355 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:46,356 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 15:51:46,356 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:46,356 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:46,357 INFO  L85        PathProgramCache]: Analyzing trace with hash -236553538, now seen corresponding path program 1 times
[2024-11-08 15:51:46,358 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:46,358 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694992658]
[2024-11-08 15:51:46,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:46,358 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:46,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:46,535 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 15:51:46,537 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:46,537 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694992658]
[2024-11-08 15:51:46,538 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694992658] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:46,538 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:46,538 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 15:51:46,538 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560299518]
[2024-11-08 15:51:46,539 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:46,540 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 15:51:46,540 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:46,540 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 15:51:46,541 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 15:51:46,541 INFO  L87              Difference]: Start difference. First operand 842 states and 1406 transitions. Second operand  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 15:51:46,604 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:46,605 INFO  L93              Difference]: Finished difference Result 1462 states and 2452 transitions.
[2024-11-08 15:51:46,605 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 15:51:46,605 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 117
[2024-11-08 15:51:46,606 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:46,610 INFO  L225             Difference]: With dead ends: 1462
[2024-11-08 15:51:46,610 INFO  L226             Difference]: Without dead ends: 1122
[2024-11-08 15:51:46,612 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 15:51:46,613 INFO  L432           NwaCegarLoop]: 657 mSDtfsCounter, 190 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:46,613 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1146 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 15:51:46,617 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1122 states.
[2024-11-08 15:51:46,638 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1120.
[2024-11-08 15:51:46,640 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1120 states, 1119 states have (on average 1.6729222520107239) internal successors, (1872), 1119 states have internal predecessors, (1872), 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 15:51:46,645 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1872 transitions.
[2024-11-08 15:51:46,646 INFO  L78                 Accepts]: Start accepts. Automaton has 1120 states and 1872 transitions. Word has length 117
[2024-11-08 15:51:46,646 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:46,647 INFO  L471      AbstractCegarLoop]: Abstraction has 1120 states and 1872 transitions.
[2024-11-08 15:51:46,647 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 15:51:46,647 INFO  L276                IsEmpty]: Start isEmpty. Operand 1120 states and 1872 transitions.
[2024-11-08 15:51:46,648 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2024-11-08 15:51:46,648 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:46,649 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:46,649 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 15:51:46,649 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:46,649 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:46,650 INFO  L85        PathProgramCache]: Analyzing trace with hash 2147173936, now seen corresponding path program 1 times
[2024-11-08 15:51:46,650 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:46,650 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267779319]
[2024-11-08 15:51:46,650 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:46,652 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:46,707 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:46,831 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 15:51:46,832 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:46,832 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267779319]
[2024-11-08 15:51:46,832 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267779319] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:46,832 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:46,832 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 15:51:46,832 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317254458]
[2024-11-08 15:51:46,833 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:46,833 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 15:51:46,833 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:46,834 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 15:51:46,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 15:51:46,835 INFO  L87              Difference]: Start difference. First operand 1120 states and 1872 transitions. Second operand  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 15:51:46,883 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:46,883 INFO  L93              Difference]: Finished difference Result 2861 states and 4787 transitions.
[2024-11-08 15:51:46,884 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 15:51:46,885 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 117
[2024-11-08 15:51:46,886 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:46,916 INFO  L225             Difference]: With dead ends: 2861
[2024-11-08 15:51:46,918 INFO  L226             Difference]: Without dead ends: 1950
[2024-11-08 15:51:46,919 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 15:51:46,921 INFO  L432           NwaCegarLoop]: 638 mSDtfsCounter, 183 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:46,921 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1125 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 15:51:46,924 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1950 states.
[2024-11-08 15:51:46,952 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1948.
[2024-11-08 15:51:46,956 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1948 states, 1947 states have (on average 1.6656394453004622) internal successors, (3243), 1947 states have internal predecessors, (3243), 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 15:51:46,963 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 3243 transitions.
[2024-11-08 15:51:46,963 INFO  L78                 Accepts]: Start accepts. Automaton has 1948 states and 3243 transitions. Word has length 117
[2024-11-08 15:51:46,964 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:46,964 INFO  L471      AbstractCegarLoop]: Abstraction has 1948 states and 3243 transitions.
[2024-11-08 15:51:46,965 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 15:51:46,965 INFO  L276                IsEmpty]: Start isEmpty. Operand 1948 states and 3243 transitions.
[2024-11-08 15:51:46,966 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-08 15:51:46,968 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:46,968 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:46,968 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 15:51:46,968 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:46,969 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:46,969 INFO  L85        PathProgramCache]: Analyzing trace with hash 866565200, now seen corresponding path program 1 times
[2024-11-08 15:51:46,969 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:46,970 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92961465]
[2024-11-08 15:51:46,970 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:46,970 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:47,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:47,118 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 15:51:47,119 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:47,119 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92961465]
[2024-11-08 15:51:47,120 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92961465] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:47,120 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:47,120 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 15:51:47,120 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190845121]
[2024-11-08 15:51:47,121 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:47,121 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 15:51:47,121 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:47,122 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 15:51:47,122 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 15:51:47,123 INFO  L87              Difference]: Start difference. First operand 1948 states and 3243 transitions. Second operand  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 15:51:47,167 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:47,167 INFO  L93              Difference]: Finished difference Result 3554 states and 5943 transitions.
[2024-11-08 15:51:47,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 15:51:47,168 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120
[2024-11-08 15:51:47,169 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:47,178 INFO  L225             Difference]: With dead ends: 3554
[2024-11-08 15:51:47,178 INFO  L226             Difference]: Without dead ends: 2643
[2024-11-08 15:51:47,180 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 15:51:47,181 INFO  L432           NwaCegarLoop]: 629 mSDtfsCounter, 184 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:47,183 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1119 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 15:51:47,186 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2643 states.
[2024-11-08 15:51:47,227 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 2641.
[2024-11-08 15:51:47,232 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2641 states, 2640 states have (on average 1.665909090909091) internal successors, (4398), 2640 states have internal predecessors, (4398), 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 15:51:47,241 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2641 states to 2641 states and 4398 transitions.
[2024-11-08 15:51:47,245 INFO  L78                 Accepts]: Start accepts. Automaton has 2641 states and 4398 transitions. Word has length 120
[2024-11-08 15:51:47,245 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:47,245 INFO  L471      AbstractCegarLoop]: Abstraction has 2641 states and 4398 transitions.
[2024-11-08 15:51:47,246 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 15:51:47,246 INFO  L276                IsEmpty]: Start isEmpty. Operand 2641 states and 4398 transitions.
[2024-11-08 15:51:47,247 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-08 15:51:47,247 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:47,247 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:47,247 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 15:51:47,248 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:47,248 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:47,248 INFO  L85        PathProgramCache]: Analyzing trace with hash 83170558, now seen corresponding path program 1 times
[2024-11-08 15:51:47,248 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:47,249 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175679275]
[2024-11-08 15:51:47,249 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:47,249 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:47,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:47,465 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 15:51:47,466 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:47,466 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175679275]
[2024-11-08 15:51:47,467 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175679275] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:47,467 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:47,467 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 15:51:47,467 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320064650]
[2024-11-08 15:51:47,467 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:47,468 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 15:51:47,468 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:47,469 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 15:51:47,469 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 15:51:47,469 INFO  L87              Difference]: Start difference. First operand 2641 states and 4398 transitions. Second operand  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 15:51:47,557 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:47,558 INFO  L93              Difference]: Finished difference Result 7226 states and 12005 transitions.
[2024-11-08 15:51:47,558 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 15:51:47,558 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120
[2024-11-08 15:51:47,559 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:47,576 INFO  L225             Difference]: With dead ends: 7226
[2024-11-08 15:51:47,577 INFO  L226             Difference]: Without dead ends: 4812
[2024-11-08 15:51:47,584 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 15:51:47,585 INFO  L432           NwaCegarLoop]: 534 mSDtfsCounter, 177 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:47,588 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1022 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 15:51:47,594 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4812 states.
[2024-11-08 15:51:47,669 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4810.
[2024-11-08 15:51:47,680 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4810 states, 4809 states have (on average 1.651902682470368) internal successors, (7944), 4809 states have internal predecessors, (7944), 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 15:51:47,698 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 7944 transitions.
[2024-11-08 15:51:47,699 INFO  L78                 Accepts]: Start accepts. Automaton has 4810 states and 7944 transitions. Word has length 120
[2024-11-08 15:51:47,699 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:47,699 INFO  L471      AbstractCegarLoop]: Abstraction has 4810 states and 7944 transitions.
[2024-11-08 15:51:47,699 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 15:51:47,699 INFO  L276                IsEmpty]: Start isEmpty. Operand 4810 states and 7944 transitions.
[2024-11-08 15:51:47,701 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-11-08 15:51:47,701 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:47,701 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:47,701 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 15:51:47,701 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:47,702 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:47,702 INFO  L85        PathProgramCache]: Analyzing trace with hash 1139352598, now seen corresponding path program 1 times
[2024-11-08 15:51:47,702 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:47,702 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344099915]
[2024-11-08 15:51:47,702 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:47,703 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:47,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:47,942 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 15:51:47,942 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:47,942 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344099915]
[2024-11-08 15:51:47,943 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344099915] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:47,943 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:47,943 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 15:51:47,943 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933113827]
[2024-11-08 15:51:47,943 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:47,944 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 15:51:47,944 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:47,944 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 15:51:47,944 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 15:51:47,945 INFO  L87              Difference]: Start difference. First operand 4810 states and 7944 transitions. Second operand  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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 15:51:48,338 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:48,339 INFO  L93              Difference]: Finished difference Result 29771 states and 49577 transitions.
[2024-11-08 15:51:48,339 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-08 15:51:48,340 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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 123
[2024-11-08 15:51:48,340 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:48,442 INFO  L225             Difference]: With dead ends: 29771
[2024-11-08 15:51:48,442 INFO  L226             Difference]: Without dead ends: 25188
[2024-11-08 15:51:48,462 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2024-11-08 15:51:48,464 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 2298 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:48,464 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 3572 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 15:51:48,494 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25188 states.
[2024-11-08 15:51:48,846 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25188 to 9236.
[2024-11-08 15:51:48,869 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9236 states, 9235 states have (on average 1.6472116946399566) internal successors, (15212), 9235 states have internal predecessors, (15212), 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 15:51:48,907 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9236 states to 9236 states and 15212 transitions.
[2024-11-08 15:51:48,907 INFO  L78                 Accepts]: Start accepts. Automaton has 9236 states and 15212 transitions. Word has length 123
[2024-11-08 15:51:48,908 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:48,908 INFO  L471      AbstractCegarLoop]: Abstraction has 9236 states and 15212 transitions.
[2024-11-08 15:51:48,908 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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 15:51:48,908 INFO  L276                IsEmpty]: Start isEmpty. Operand 9236 states and 15212 transitions.
[2024-11-08 15:51:48,910 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-08 15:51:48,910 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:48,910 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:48,910 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 15:51:48,910 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:48,911 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:48,911 INFO  L85        PathProgramCache]: Analyzing trace with hash 893130139, now seen corresponding path program 1 times
[2024-11-08 15:51:48,911 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:48,911 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512687364]
[2024-11-08 15:51:48,911 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:48,912 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:48,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:49,128 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 15:51:49,128 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:49,129 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512687364]
[2024-11-08 15:51:49,129 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512687364] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:49,129 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:49,129 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 15:51:49,129 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770998739]
[2024-11-08 15:51:49,129 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:49,130 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 15:51:49,130 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:49,131 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 15:51:49,131 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 15:51:49,131 INFO  L87              Difference]: Start difference. First operand 9236 states and 15212 transitions. Second operand  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 15:51:49,295 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:49,296 INFO  L93              Difference]: Finished difference Result 30029 states and 49739 transitions.
[2024-11-08 15:51:49,297 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 15:51:49,297 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 124
[2024-11-08 15:51:49,297 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:49,344 INFO  L225             Difference]: With dead ends: 30029
[2024-11-08 15:51:49,344 INFO  L226             Difference]: Without dead ends: 21020
[2024-11-08 15:51:49,364 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 15:51:49,365 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 624 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:49,366 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1716 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 15:51:49,390 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21020 states.
[2024-11-08 15:51:49,689 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21020 to 15091.
[2024-11-08 15:51:49,718 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15091 states, 15090 states have (on average 1.6485089463220677) internal successors, (24876), 15090 states have internal predecessors, (24876), 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 15:51:49,762 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15091 states to 15091 states and 24876 transitions.
[2024-11-08 15:51:49,762 INFO  L78                 Accepts]: Start accepts. Automaton has 15091 states and 24876 transitions. Word has length 124
[2024-11-08 15:51:49,763 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:49,763 INFO  L471      AbstractCegarLoop]: Abstraction has 15091 states and 24876 transitions.
[2024-11-08 15:51:49,764 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 15:51:49,764 INFO  L276                IsEmpty]: Start isEmpty. Operand 15091 states and 24876 transitions.
[2024-11-08 15:51:49,765 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-08 15:51:49,765 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:49,765 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:49,766 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 15:51:49,766 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:49,770 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:49,770 INFO  L85        PathProgramCache]: Analyzing trace with hash -485089184, now seen corresponding path program 1 times
[2024-11-08 15:51:49,770 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:49,771 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012964710]
[2024-11-08 15:51:49,771 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:49,771 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:49,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:49,936 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 15:51:49,936 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:49,937 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012964710]
[2024-11-08 15:51:49,937 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012964710] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:49,937 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:49,937 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 15:51:49,938 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974051483]
[2024-11-08 15:51:49,940 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:49,940 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 15:51:49,942 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:49,942 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 15:51:49,943 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 15:51:49,943 INFO  L87              Difference]: Start difference. First operand 15091 states and 24876 transitions. Second operand  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 15:51:50,177 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:50,178 INFO  L93              Difference]: Finished difference Result 28697 states and 47478 transitions.
[2024-11-08 15:51:50,179 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 15:51:50,179 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124
[2024-11-08 15:51:50,179 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:50,224 INFO  L225             Difference]: With dead ends: 28697
[2024-11-08 15:51:50,224 INFO  L226             Difference]: Without dead ends: 20733
[2024-11-08 15:51:50,238 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 15:51:50,239 INFO  L432           NwaCegarLoop]: 612 mSDtfsCounter, 178 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:50,241 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1103 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 15:51:50,261 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20733 states.
[2024-11-08 15:51:50,585 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20733 to 20731.
[2024-11-08 15:51:50,615 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20731 states, 20730 states have (on average 1.645875542691751) internal successors, (34119), 20730 states have internal predecessors, (34119), 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 15:51:50,657 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20731 states to 20731 states and 34119 transitions.
[2024-11-08 15:51:50,657 INFO  L78                 Accepts]: Start accepts. Automaton has 20731 states and 34119 transitions. Word has length 124
[2024-11-08 15:51:50,658 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:50,658 INFO  L471      AbstractCegarLoop]: Abstraction has 20731 states and 34119 transitions.
[2024-11-08 15:51:50,658 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 15:51:50,658 INFO  L276                IsEmpty]: Start isEmpty. Operand 20731 states and 34119 transitions.
[2024-11-08 15:51:50,659 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-08 15:51:50,659 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:50,660 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:50,660 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 15:51:50,660 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:50,661 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:50,661 INFO  L85        PathProgramCache]: Analyzing trace with hash 1854726525, now seen corresponding path program 1 times
[2024-11-08 15:51:50,661 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:50,661 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958203036]
[2024-11-08 15:51:50,661 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:50,662 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:50,702 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:50,818 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 15:51:50,818 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:50,818 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958203036]
[2024-11-08 15:51:50,818 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958203036] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:50,819 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:50,819 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 15:51:50,819 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406775815]
[2024-11-08 15:51:50,819 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:50,819 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 15:51:50,820 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:50,820 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 15:51:50,820 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 15:51:50,821 INFO  L87              Difference]: Start difference. First operand 20731 states and 34119 transitions. Second operand  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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 15:51:51,243 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:51,244 INFO  L93              Difference]: Finished difference Result 67429 states and 111258 transitions.
[2024-11-08 15:51:51,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 15:51:51,245 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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 125
[2024-11-08 15:51:51,245 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:51,364 INFO  L225             Difference]: With dead ends: 67429
[2024-11-08 15:51:51,365 INFO  L226             Difference]: Without dead ends: 46943
[2024-11-08 15:51:51,411 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 15:51:51,412 INFO  L432           NwaCegarLoop]: 519 mSDtfsCounter, 622 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:51,412 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1617 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 15:51:51,448 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46943 states.
[2024-11-08 15:51:52,096 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46943 to 33748.
[2024-11-08 15:51:52,146 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33748 states, 33747 states have (on average 1.6413014490176905) internal successors, (55389), 33747 states have internal predecessors, (55389), 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 15:51:52,239 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33748 states to 33748 states and 55389 transitions.
[2024-11-08 15:51:52,240 INFO  L78                 Accepts]: Start accepts. Automaton has 33748 states and 55389 transitions. Word has length 125
[2024-11-08 15:51:52,240 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:52,241 INFO  L471      AbstractCegarLoop]: Abstraction has 33748 states and 55389 transitions.
[2024-11-08 15:51:52,241 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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 15:51:52,241 INFO  L276                IsEmpty]: Start isEmpty. Operand 33748 states and 55389 transitions.
[2024-11-08 15:51:52,242 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-11-08 15:51:52,243 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:52,243 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:52,243 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-08 15:51:52,243 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:52,244 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:52,244 INFO  L85        PathProgramCache]: Analyzing trace with hash 1604001442, now seen corresponding path program 1 times
[2024-11-08 15:51:52,244 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:52,244 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184799563]
[2024-11-08 15:51:52,245 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:52,245 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:52,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:52,601 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 15:51:52,601 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:52,601 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184799563]
[2024-11-08 15:51:52,601 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184799563] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:52,601 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:52,601 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 15:51:52,602 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895463177]
[2024-11-08 15:51:52,602 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:52,602 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 15:51:52,602 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:52,603 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 15:51:52,603 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 15:51:52,603 INFO  L87              Difference]: Start difference. First operand 33748 states and 55389 transitions. Second operand  has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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 15:51:53,053 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:53,055 INFO  L93              Difference]: Finished difference Result 109323 states and 179874 transitions.
[2024-11-08 15:51:53,055 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 15:51:53,056 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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 126
[2024-11-08 15:51:53,056 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:53,213 INFO  L225             Difference]: With dead ends: 109323
[2024-11-08 15:51:53,215 INFO  L226             Difference]: Without dead ends: 75820
[2024-11-08 15:51:53,265 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 15:51:53,266 INFO  L432           NwaCegarLoop]: 513 mSDtfsCounter, 620 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:53,266 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 1658 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 15:51:53,328 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75820 states.
[2024-11-08 15:51:54,193 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75820 to 54641.
[2024-11-08 15:51:54,259 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54641 states, 54640 states have (on average 1.6366581259150805) internal successors, (89427), 54640 states have internal predecessors, (89427), 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 15:51:54,401 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54641 states to 54641 states and 89427 transitions.
[2024-11-08 15:51:54,401 INFO  L78                 Accepts]: Start accepts. Automaton has 54641 states and 89427 transitions. Word has length 126
[2024-11-08 15:51:54,402 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:54,402 INFO  L471      AbstractCegarLoop]: Abstraction has 54641 states and 89427 transitions.
[2024-11-08 15:51:54,402 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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 15:51:54,402 INFO  L276                IsEmpty]: Start isEmpty. Operand 54641 states and 89427 transitions.
[2024-11-08 15:51:54,403 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-08 15:51:54,403 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:54,404 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:54,404 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-08 15:51:54,404 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:54,404 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:54,404 INFO  L85        PathProgramCache]: Analyzing trace with hash -1868950812, now seen corresponding path program 1 times
[2024-11-08 15:51:54,404 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:54,405 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047773905]
[2024-11-08 15:51:54,405 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:54,405 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:54,680 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:54,828 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 15:51:54,828 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:54,828 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047773905]
[2024-11-08 15:51:54,829 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047773905] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:54,829 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:54,829 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 15:51:54,829 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846449139]
[2024-11-08 15:51:54,829 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:54,830 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 15:51:54,830 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:54,830 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 15:51:54,830 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 15:51:54,831 INFO  L87              Difference]: Start difference. First operand 54641 states and 89427 transitions. Second operand  has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 15:51:55,660 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:55,660 INFO  L93              Difference]: Finished difference Result 175049 states and 287186 transitions.
[2024-11-08 15:51:55,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 15:51:55,661 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 127
[2024-11-08 15:51:55,661 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:55,943 INFO  L225             Difference]: With dead ends: 175049
[2024-11-08 15:51:55,943 INFO  L226             Difference]: Without dead ends: 120653
[2024-11-08 15:51:56,021 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 15:51:56,022 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 618 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:56,023 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1722 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 15:51:56,127 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120653 states.
[2024-11-08 15:51:57,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120653 to 87422.
[2024-11-08 15:51:57,624 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87422 states, 87421 states have (on average 1.6320220541975041) internal successors, (142673), 87421 states have internal predecessors, (142673), 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 15:51:57,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87422 states to 87422 states and 142673 transitions.
[2024-11-08 15:51:57,879 INFO  L78                 Accepts]: Start accepts. Automaton has 87422 states and 142673 transitions. Word has length 127
[2024-11-08 15:51:57,879 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:51:57,879 INFO  L471      AbstractCegarLoop]: Abstraction has 87422 states and 142673 transitions.
[2024-11-08 15:51:57,879 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 15:51:57,879 INFO  L276                IsEmpty]: Start isEmpty. Operand 87422 states and 142673 transitions.
[2024-11-08 15:51:57,880 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-11-08 15:51:57,880 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:51:57,880 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:51:57,880 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-08 15:51:57,880 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:51:57,881 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:51:57,881 INFO  L85        PathProgramCache]: Analyzing trace with hash 2012261173, now seen corresponding path program 1 times
[2024-11-08 15:51:57,881 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:51:57,881 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130765035]
[2024-11-08 15:51:57,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:51:57,881 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:51:57,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:51:58,216 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 15:51:58,216 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:51:58,216 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130765035]
[2024-11-08 15:51:58,216 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130765035] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:51:58,216 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:51:58,216 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 15:51:58,217 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390271322]
[2024-11-08 15:51:58,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:51:58,217 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 15:51:58,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:51:58,218 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 15:51:58,218 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-08 15:51:58,218 INFO  L87              Difference]: Start difference. First operand 87422 states and 142673 transitions. Second operand  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 15:51:59,226 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:51:59,226 INFO  L93              Difference]: Finished difference Result 174601 states and 284955 transitions.
[2024-11-08 15:51:59,227 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-08 15:51:59,227 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 129
[2024-11-08 15:51:59,227 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:51:59,402 INFO  L225             Difference]: With dead ends: 174601
[2024-11-08 15:51:59,402 INFO  L226             Difference]: Without dead ends: 87424
[2024-11-08 15:51:59,477 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2024-11-08 15:51:59,478 INFO  L432           NwaCegarLoop]: 517 mSDtfsCounter, 711 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 15:51:59,479 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1993 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 15:51:59,533 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87424 states.
[2024-11-08 15:52:00,547 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87424 to 87422.
[2024-11-08 15:52:00,630 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87422 states, 87421 states have (on average 1.6248727422472862) internal successors, (142048), 87421 states have internal predecessors, (142048), 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 15:52:00,774 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87422 states to 87422 states and 142048 transitions.
[2024-11-08 15:52:00,774 INFO  L78                 Accepts]: Start accepts. Automaton has 87422 states and 142048 transitions. Word has length 129
[2024-11-08 15:52:00,775 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:52:00,775 INFO  L471      AbstractCegarLoop]: Abstraction has 87422 states and 142048 transitions.
[2024-11-08 15:52:00,775 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 15:52:00,775 INFO  L276                IsEmpty]: Start isEmpty. Operand 87422 states and 142048 transitions.
[2024-11-08 15:52:00,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2024-11-08 15:52:00,776 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:52:00,776 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:52:00,776 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-08 15:52:00,776 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:52:00,777 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:52:00,777 INFO  L85        PathProgramCache]: Analyzing trace with hash 365685076, now seen corresponding path program 1 times
[2024-11-08 15:52:00,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:52:00,777 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383002911]
[2024-11-08 15:52:00,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:52:00,777 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:52:00,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:52:01,566 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 15:52:01,567 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:52:01,567 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383002911]
[2024-11-08 15:52:01,567 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383002911] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:52:01,567 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:52:01,567 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 15:52:01,568 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670776236]
[2024-11-08 15:52:01,568 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:52:01,568 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 15:52:01,568 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:52:01,569 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 15:52:01,569 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-08 15:52:01,569 INFO  L87              Difference]: Start difference. First operand 87422 states and 142048 transitions. Second operand  has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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 15:52:02,320 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:52:02,320 INFO  L93              Difference]: Finished difference Result 255495 states and 415623 transitions.
[2024-11-08 15:52:02,321 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-08 15:52:02,321 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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 132
[2024-11-08 15:52:02,321 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:52:03,059 INFO  L225             Difference]: With dead ends: 255495
[2024-11-08 15:52:03,060 INFO  L226             Difference]: Without dead ends: 168318
[2024-11-08 15:52:03,130 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2024-11-08 15:52:03,131 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 528 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 15:52:03,131 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 2008 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 15:52:03,238 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 168318 states.
[2024-11-08 15:52:04,929 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 168318 to 168316.
[2024-11-08 15:52:05,701 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 168316 states, 168315 states have (on average 1.615714582776342) internal successors, (271949), 168315 states have internal predecessors, (271949), 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 15:52:06,087 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 168316 states to 168316 states and 271949 transitions.
[2024-11-08 15:52:06,088 INFO  L78                 Accepts]: Start accepts. Automaton has 168316 states and 271949 transitions. Word has length 132
[2024-11-08 15:52:06,088 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:52:06,088 INFO  L471      AbstractCegarLoop]: Abstraction has 168316 states and 271949 transitions.
[2024-11-08 15:52:06,088 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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 15:52:06,088 INFO  L276                IsEmpty]: Start isEmpty. Operand 168316 states and 271949 transitions.
[2024-11-08 15:52:06,089 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-08 15:52:06,089 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:52:06,089 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:52:06,089 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-08 15:52:06,089 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:52:06,090 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:52:06,090 INFO  L85        PathProgramCache]: Analyzing trace with hash -1550573646, now seen corresponding path program 1 times
[2024-11-08 15:52:06,090 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:52:06,090 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223447108]
[2024-11-08 15:52:06,090 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:52:06,090 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:52:06,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:52:06,698 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 15:52:06,699 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:52:06,699 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223447108]
[2024-11-08 15:52:06,699 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223447108] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:52:06,699 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:52:06,699 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 15:52:06,699 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069911211]
[2024-11-08 15:52:06,701 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:52:06,702 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 15:52:06,702 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:52:06,702 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 15:52:06,702 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 15:52:06,703 INFO  L87              Difference]: Start difference. First operand 168316 states and 271949 transitions. Second operand  has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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 15:52:07,788 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:52:07,788 INFO  L93              Difference]: Finished difference Result 172190 states and 277758 transitions.
[2024-11-08 15:52:07,789 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 15:52:07,789 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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 133
[2024-11-08 15:52:07,789 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:52:08,086 INFO  L225             Difference]: With dead ends: 172190
[2024-11-08 15:52:08,086 INFO  L226             Difference]: Without dead ends: 172188
[2024-11-08 15:52:08,120 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 15:52:08,121 INFO  L432           NwaCegarLoop]: 522 mSDtfsCounter, 0 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 15:52:08,122 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2070 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 15:52:08,228 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 172188 states.
[2024-11-08 15:52:10,186 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 172188 to 172188.
[2024-11-08 15:52:10,338 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 172188 states, 172187 states have (on average 1.6017120920859298) internal successors, (275794), 172187 states have internal predecessors, (275794), 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 15:52:10,780 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 172188 states to 172188 states and 275794 transitions.
[2024-11-08 15:52:10,780 INFO  L78                 Accepts]: Start accepts. Automaton has 172188 states and 275794 transitions. Word has length 133
[2024-11-08 15:52:10,780 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:52:10,780 INFO  L471      AbstractCegarLoop]: Abstraction has 172188 states and 275794 transitions.
[2024-11-08 15:52:10,781 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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 15:52:10,781 INFO  L276                IsEmpty]: Start isEmpty. Operand 172188 states and 275794 transitions.
[2024-11-08 15:52:10,788 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2024-11-08 15:52:10,788 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:52:10,788 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:52:10,788 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-08 15:52:10,789 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:52:10,789 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:52:10,789 INFO  L85        PathProgramCache]: Analyzing trace with hash -2098432369, now seen corresponding path program 1 times
[2024-11-08 15:52:10,789 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:52:10,790 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097975653]
[2024-11-08 15:52:10,790 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:52:10,790 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:52:10,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:52:11,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 15:52:11,117 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:52:11,118 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097975653]
[2024-11-08 15:52:11,118 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097975653] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:52:11,118 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:52:11,119 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 15:52:11,119 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608482968]
[2024-11-08 15:52:11,119 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:52:11,119 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 15:52:11,120 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:52:11,120 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 15:52:11,121 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 15:52:11,121 INFO  L87              Difference]: Start difference. First operand 172188 states and 275794 transitions. Second operand  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 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 15:52:13,333 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:52:13,334 INFO  L93              Difference]: Finished difference Result 469214 states and 754047 transitions.
[2024-11-08 15:52:13,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-08 15:52:13,335 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 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 163
[2024-11-08 15:52:13,335 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:52:14,114 INFO  L225             Difference]: With dead ends: 469214
[2024-11-08 15:52:14,114 INFO  L226             Difference]: Without dead ends: 393562
[2024-11-08 15:52:14,262 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-08 15:52:14,262 INFO  L432           NwaCegarLoop]: 723 mSDtfsCounter, 1388 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 15:52:14,262 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 2948 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 15:52:14,566 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 393562 states.
[2024-11-08 15:52:19,461 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 393562 to 276620.
[2024-11-08 15:52:19,771 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 276620 states, 276619 states have (on average 1.6000925460651654) internal successors, (442616), 276619 states have internal predecessors, (442616), 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 15:52:20,438 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 276620 states to 276620 states and 442616 transitions.
[2024-11-08 15:52:20,438 INFO  L78                 Accepts]: Start accepts. Automaton has 276620 states and 442616 transitions. Word has length 163
[2024-11-08 15:52:20,438 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:52:20,439 INFO  L471      AbstractCegarLoop]: Abstraction has 276620 states and 442616 transitions.
[2024-11-08 15:52:20,439 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 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 15:52:20,439 INFO  L276                IsEmpty]: Start isEmpty. Operand 276620 states and 442616 transitions.
[2024-11-08 15:52:20,446 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2024-11-08 15:52:20,447 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:52:20,447 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:52:20,447 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-08 15:52:20,447 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:52:20,447 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:52:20,448 INFO  L85        PathProgramCache]: Analyzing trace with hash -903642171, now seen corresponding path program 1 times
[2024-11-08 15:52:20,448 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:52:20,448 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669980650]
[2024-11-08 15:52:20,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:52:20,448 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:52:20,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:52:20,704 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 15:52:20,704 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:52:20,704 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669980650]
[2024-11-08 15:52:20,705 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669980650] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:52:20,705 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:52:20,705 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 15:52:20,705 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229321622]
[2024-11-08 15:52:20,705 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:52:20,705 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 15:52:20,706 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:52:20,706 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 15:52:20,706 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 15:52:20,706 INFO  L87              Difference]: Start difference. First operand 276620 states and 442616 transitions. Second operand  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 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 15:52:22,879 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 15:52:22,879 INFO  L93              Difference]: Finished difference Result 517342 states and 831675 transitions.
[2024-11-08 15:52:22,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-08 15:52:22,880 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 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 163
[2024-11-08 15:52:22,880 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 15:52:23,749 INFO  L225             Difference]: With dead ends: 517342
[2024-11-08 15:52:23,749 INFO  L226             Difference]: Without dead ends: 441690
[2024-11-08 15:52:23,914 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-08 15:52:23,915 INFO  L432           NwaCegarLoop]: 721 mSDtfsCounter, 1327 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 15:52:23,915 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2649 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 15:52:24,250 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 441690 states.
[2024-11-08 15:52:29,396 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 441690 to 373886.
[2024-11-08 15:52:29,741 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 373886 states, 373885 states have (on average 1.6012249755940997) internal successors, (598674), 373885 states have internal predecessors, (598674), 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 15:52:30,535 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 373886 states to 373886 states and 598674 transitions.
[2024-11-08 15:52:30,536 INFO  L78                 Accepts]: Start accepts. Automaton has 373886 states and 598674 transitions. Word has length 163
[2024-11-08 15:52:30,536 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 15:52:30,536 INFO  L471      AbstractCegarLoop]: Abstraction has 373886 states and 598674 transitions.
[2024-11-08 15:52:30,536 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 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 15:52:30,536 INFO  L276                IsEmpty]: Start isEmpty. Operand 373886 states and 598674 transitions.
[2024-11-08 15:52:30,544 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2024-11-08 15:52:30,544 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 15:52:30,544 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 15:52:30,544 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-08 15:52:30,545 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 15:52:30,545 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 15:52:30,545 INFO  L85        PathProgramCache]: Analyzing trace with hash -220690461, now seen corresponding path program 1 times
[2024-11-08 15:52:30,545 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 15:52:30,545 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942521723]
[2024-11-08 15:52:30,545 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 15:52:30,546 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 15:52:31,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 15:52:32,099 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 15:52:32,100 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 15:52:32,100 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942521723]
[2024-11-08 15:52:32,100 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942521723] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 15:52:32,100 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 15:52:32,100 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 15:52:32,100 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641064877]
[2024-11-08 15:52:32,100 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 15:52:32,102 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 15:52:32,102 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 15:52:32,102 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 15:52:32,103 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 15:52:32,103 INFO  L87              Difference]: Start difference. First operand 373886 states and 598674 transitions. Second operand  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 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)