./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.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 46a91366e7e569e141300a988c04d8b4b481c1b05b44f766484efcdaa4c30cac
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 14:39:14,619 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 14:39:14,677 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 14:39:14,683 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 14:39:14,684 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 14:39:14,710 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 14:39:14,711 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 14:39:14,711 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 14:39:14,711 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 14:39:14,712 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 14:39:14,712 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 14:39:14,712 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 14:39:14,712 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 14:39:14,713 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 14:39:14,713 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 14:39:14,713 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 14:39:14,713 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 14:39:14,713 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 14:39:14,714 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 14:39:14,714 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 14:39:14,717 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 14:39:14,717 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 14:39:14,718 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 14:39:14,718 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 14:39:14,718 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 14:39:14,721 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 14:39:14,721 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 14:39:14,721 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 14:39:14,721 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 14:39:14,722 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 14:39:14,722 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 14:39:14,722 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 14:39:14,722 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 14:39:14,722 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 14:39:14,723 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 14:39:14,723 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 14:39:14,723 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 14:39:14,723 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 14:39:14,724 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 14:39:14,724 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 14:39:14,724 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 14:39:14,725 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 14:39:14,725 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 -> 46a91366e7e569e141300a988c04d8b4b481c1b05b44f766484efcdaa4c30cac
[2024-11-18 14:39:14,973 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 14:39:14,998 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 14:39:15,000 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 14:39:15,001 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 14:39:15,001 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 14:39:15,002 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c
[2024-11-18 14:39:16,318 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 14:39:16,534 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 14:39:16,534 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c
[2024-11-18 14:39:16,553 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1c85f76/2f28b7ff654c43c187529201242144ca/FLAGf981dad90
[2024-11-18 14:39:16,564 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1c85f76/2f28b7ff654c43c187529201242144ca
[2024-11-18 14:39:16,566 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 14:39:16,567 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 14:39:16,568 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 14:39:16,568 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 14:39:16,572 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 14:39:16,573 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:39:16" (1/1) ...
[2024-11-18 14:39:16,573 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773e24f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:16, skipping insertion in model container
[2024-11-18 14:39:16,574 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:39:16" (1/1) ...
[2024-11-18 14:39:16,607 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 14:39:17,005 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/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c[28368,28381]
[2024-11-18 14:39:17,012 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 14:39:17,023 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 14:39:17,109 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/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c[28368,28381]
[2024-11-18 14:39:17,110 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 14:39:17,132 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 14:39:17,133 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17 WrapperNode
[2024-11-18 14:39:17,133 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 14:39:17,134 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 14:39:17,134 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 14:39:17,134 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 14:39:17,144 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,157 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,204 INFO  L138                Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 959
[2024-11-18 14:39:17,204 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 14:39:17,205 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 14:39:17,205 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 14:39:17,205 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 14:39:17,221 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,221 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,225 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,245 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-18 14:39:17,246 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,246 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,266 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,281 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,288 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,298 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,312 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 14:39:17,312 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 14:39:17,312 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 14:39:17,313 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 14:39:17,313 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (1/1) ...
[2024-11-18 14:39:17,318 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 14:39:17,328 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 14:39:17,347 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-18 14:39:17,351 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-18 14:39:17,396 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 14:39:17,396 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 14:39:17,397 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 14:39:17,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 14:39:17,542 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 14:39:17,544 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 14:39:18,274 INFO  L?                        ?]: Removed 111 outVars from TransFormulas that were not future-live.
[2024-11-18 14:39:18,274 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 14:39:18,305 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 14:39:18,305 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 14:39:18,306 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:39:18 BoogieIcfgContainer
[2024-11-18 14:39:18,306 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 14:39:18,308 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 14:39:18,308 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 14:39:18,311 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 14:39:18,311 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:39:16" (1/3) ...
[2024-11-18 14:39:18,312 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5045df89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:39:18, skipping insertion in model container
[2024-11-18 14:39:18,312 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:39:17" (2/3) ...
[2024-11-18 14:39:18,316 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5045df89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:39:18, skipping insertion in model container
[2024-11-18 14:39:18,317 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:39:18" (3/3) ...
[2024-11-18 14:39:18,318 INFO  L112   eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.UNBOUNDED.pals.c
[2024-11-18 14:39:18,344 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 14:39:18,345 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 14:39:18,413 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 14:39:18,419 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;@313a0c8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 14:39:18,421 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 14:39:18,431 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 288 states, 286 states have (on average 1.8251748251748252) internal successors, (522), 287 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:18,442 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-18 14:39:18,442 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:18,443 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:39:18,445 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:18,449 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:18,449 INFO  L85        PathProgramCache]: Analyzing trace with hash 2117571860, now seen corresponding path program 1 times
[2024-11-18 14:39:18,456 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:18,456 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163411863]
[2024-11-18 14:39:18,456 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:18,457 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:18,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:18,922 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:18,922 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:18,922 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163411863]
[2024-11-18 14:39:18,923 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163411863] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:18,923 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:18,923 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 14:39:18,924 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361571124]
[2024-11-18 14:39:18,927 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:18,936 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-18 14:39:18,936 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:18,957 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-18 14:39:18,958 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 14:39:18,961 INFO  L87              Difference]: Start difference. First operand  has 288 states, 286 states have (on average 1.8251748251748252) internal successors, (522), 287 states have internal predecessors, (522), 0 states have call successors, (0), 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 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:18,990 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:18,991 INFO  L93              Difference]: Finished difference Result 381 states and 687 transitions.
[2024-11-18 14:39:18,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-18 14:39:18,996 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77
[2024-11-18 14:39:18,996 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:19,008 INFO  L225             Difference]: With dead ends: 381
[2024-11-18 14:39:19,009 INFO  L226             Difference]: Without dead ends: 284
[2024-11-18 14:39:19,012 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 14:39:19,016 INFO  L432           NwaCegarLoop]: 515 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:19,017 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:19,030 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 284 states.
[2024-11-18 14:39:19,053 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284.
[2024-11-18 14:39:19,054 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 284 states, 283 states have (on average 1.8197879858657244) internal successors, (515), 283 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:19,056 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 515 transitions.
[2024-11-18 14:39:19,057 INFO  L78                 Accepts]: Start accepts. Automaton has 284 states and 515 transitions. Word has length 77
[2024-11-18 14:39:19,058 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:19,058 INFO  L471      AbstractCegarLoop]: Abstraction has 284 states and 515 transitions.
[2024-11-18 14:39:19,058 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:19,058 INFO  L276                IsEmpty]: Start isEmpty. Operand 284 states and 515 transitions.
[2024-11-18 14:39:19,060 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-18 14:39:19,061 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:19,061 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:39:19,061 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-18 14:39:19,062 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:19,062 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:19,062 INFO  L85        PathProgramCache]: Analyzing trace with hash 1983558354, now seen corresponding path program 1 times
[2024-11-18 14:39:19,062 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:19,063 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773129148]
[2024-11-18 14:39:19,063 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:19,063 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:19,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:19,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:19,333 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:19,334 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773129148]
[2024-11-18 14:39:19,334 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773129148] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:19,334 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:19,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 14:39:19,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44775166]
[2024-11-18 14:39:19,335 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:19,336 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 14:39:19,336 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:19,336 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 14:39:19,336 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:39:19,337 INFO  L87              Difference]: Start difference. First operand 284 states and 515 transitions. Second operand  has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:19,461 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:19,462 INFO  L93              Difference]: Finished difference Result 380 states and 680 transitions.
[2024-11-18 14:39:19,462 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 14:39:19,463 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77
[2024-11-18 14:39:19,463 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:19,465 INFO  L225             Difference]: With dead ends: 380
[2024-11-18 14:39:19,465 INFO  L226             Difference]: Without dead ends: 284
[2024-11-18 14:39:19,466 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:39:19,468 INFO  L432           NwaCegarLoop]: 513 mSDtfsCounter, 0 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:19,469 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2005 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:39:19,470 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 284 states.
[2024-11-18 14:39:19,481 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284.
[2024-11-18 14:39:19,481 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 284 states, 283 states have (on average 1.6713780918727916) internal successors, (473), 283 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:19,482 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 473 transitions.
[2024-11-18 14:39:19,483 INFO  L78                 Accepts]: Start accepts. Automaton has 284 states and 473 transitions. Word has length 77
[2024-11-18 14:39:19,483 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:19,483 INFO  L471      AbstractCegarLoop]: Abstraction has 284 states and 473 transitions.
[2024-11-18 14:39:19,483 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:19,484 INFO  L276                IsEmpty]: Start isEmpty. Operand 284 states and 473 transitions.
[2024-11-18 14:39:19,486 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-18 14:39:19,486 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:19,487 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]
[2024-11-18 14:39:19,487 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 14:39:19,487 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:19,487 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:19,488 INFO  L85        PathProgramCache]: Analyzing trace with hash 188392410, now seen corresponding path program 1 times
[2024-11-18 14:39:19,488 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:19,488 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888756695]
[2024-11-18 14:39:19,488 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:19,488 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:19,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:19,738 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:19,738 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:19,738 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888756695]
[2024-11-18 14:39:19,738 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888756695] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:19,739 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:19,739 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:39:19,739 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775157871]
[2024-11-18 14:39:19,739 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:19,739 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:39:19,739 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:19,740 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:39:19,744 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:19,744 INFO  L87              Difference]: Start difference. First operand 284 states and 473 transitions. Second operand  has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:19,795 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:19,796 INFO  L93              Difference]: Finished difference Result 457 states and 774 transitions.
[2024-11-18 14:39:19,796 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:39:19,796 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118
[2024-11-18 14:39:19,798 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:19,800 INFO  L225             Difference]: With dead ends: 457
[2024-11-18 14:39:19,801 INFO  L226             Difference]: Without dead ends: 365
[2024-11-18 14:39:19,801 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:19,803 INFO  L432           NwaCegarLoop]: 467 mSDtfsCounter, 131 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:19,805 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 887 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:19,806 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 365 states.
[2024-11-18 14:39:19,821 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 362.
[2024-11-18 14:39:19,826 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 362 states, 361 states have (on average 1.6759002770083102) internal successors, (605), 361 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:19,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 605 transitions.
[2024-11-18 14:39:19,827 INFO  L78                 Accepts]: Start accepts. Automaton has 362 states and 605 transitions. Word has length 118
[2024-11-18 14:39:19,827 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:19,828 INFO  L471      AbstractCegarLoop]: Abstraction has 362 states and 605 transitions.
[2024-11-18 14:39:19,828 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:19,828 INFO  L276                IsEmpty]: Start isEmpty. Operand 362 states and 605 transitions.
[2024-11-18 14:39:19,830 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 122
[2024-11-18 14:39:19,835 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:19,835 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]
[2024-11-18 14:39:19,835 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 14:39:19,836 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:19,836 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:19,836 INFO  L85        PathProgramCache]: Analyzing trace with hash -2086049744, now seen corresponding path program 1 times
[2024-11-18 14:39:19,837 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:19,837 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070541556]
[2024-11-18 14:39:19,838 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:19,838 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:19,896 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:20,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:20,032 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:20,032 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070541556]
[2024-11-18 14:39:20,032 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070541556] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:20,032 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:20,032 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:39:20,033 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691914084]
[2024-11-18 14:39:20,033 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:20,033 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:39:20,033 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:20,034 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:39:20,034 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:20,034 INFO  L87              Difference]: Start difference. First operand 362 states and 605 transitions. Second operand  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:20,064 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:20,065 INFO  L93              Difference]: Finished difference Result 684 states and 1157 transitions.
[2024-11-18 14:39:20,065 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:39:20,065 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121
[2024-11-18 14:39:20,066 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:20,067 INFO  L225             Difference]: With dead ends: 684
[2024-11-18 14:39:20,067 INFO  L226             Difference]: Without dead ends: 514
[2024-11-18 14:39:20,068 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:20,069 INFO  L432           NwaCegarLoop]: 470 mSDtfsCounter, 132 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:20,069 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 899 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:20,070 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 514 states.
[2024-11-18 14:39:20,076 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 510.
[2024-11-18 14:39:20,077 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 510 states, 509 states have (on average 1.6836935166994107) internal successors, (857), 509 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:20,079 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 857 transitions.
[2024-11-18 14:39:20,079 INFO  L78                 Accepts]: Start accepts. Automaton has 510 states and 857 transitions. Word has length 121
[2024-11-18 14:39:20,079 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:20,079 INFO  L471      AbstractCegarLoop]: Abstraction has 510 states and 857 transitions.
[2024-11-18 14:39:20,080 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:20,080 INFO  L276                IsEmpty]: Start isEmpty. Operand 510 states and 857 transitions.
[2024-11-18 14:39:20,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-18 14:39:20,081 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:20,081 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]
[2024-11-18 14:39:20,081 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 14:39:20,081 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:20,082 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:20,082 INFO  L85        PathProgramCache]: Analyzing trace with hash -623070795, now seen corresponding path program 1 times
[2024-11-18 14:39:20,082 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:20,082 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183375434]
[2024-11-18 14:39:20,082 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:20,082 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:20,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:20,234 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:20,235 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:20,235 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183375434]
[2024-11-18 14:39:20,235 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183375434] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:20,236 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:20,236 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:39:20,236 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161978624]
[2024-11-18 14:39:20,236 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:20,237 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:39:20,237 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:20,237 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:39:20,237 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:20,238 INFO  L87              Difference]: Start difference. First operand 510 states and 857 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)
[2024-11-18 14:39:20,271 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:20,272 INFO  L93              Difference]: Finished difference Result 1110 states and 1879 transitions.
[2024-11-18 14:39:20,272 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:39:20,272 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
[2024-11-18 14:39:20,273 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:20,276 INFO  L225             Difference]: With dead ends: 1110
[2024-11-18 14:39:20,276 INFO  L226             Difference]: Without dead ends: 792
[2024-11-18 14:39:20,278 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:20,279 INFO  L432           NwaCegarLoop]: 470 mSDtfsCounter, 125 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:20,279 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 900 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:20,280 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 792 states.
[2024-11-18 14:39:20,298 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 786.
[2024-11-18 14:39:20,299 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 786 states, 785 states have (on average 1.6828025477707007) internal successors, (1321), 785 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:20,301 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1321 transitions.
[2024-11-18 14:39:20,302 INFO  L78                 Accepts]: Start accepts. Automaton has 786 states and 1321 transitions. Word has length 124
[2024-11-18 14:39:20,302 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:20,303 INFO  L471      AbstractCegarLoop]: Abstraction has 786 states and 1321 transitions.
[2024-11-18 14:39:20,303 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)
[2024-11-18 14:39:20,304 INFO  L276                IsEmpty]: Start isEmpty. Operand 786 states and 1321 transitions.
[2024-11-18 14:39:20,305 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-18 14:39:20,307 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:20,307 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]
[2024-11-18 14:39:20,307 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 14:39:20,307 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:20,308 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:20,309 INFO  L85        PathProgramCache]: Analyzing trace with hash 1603254571, now seen corresponding path program 1 times
[2024-11-18 14:39:20,309 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:20,309 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255891037]
[2024-11-18 14:39:20,309 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:20,309 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:20,353 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:20,458 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:20,459 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:20,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255891037]
[2024-11-18 14:39:20,460 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255891037] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:20,460 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:20,460 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:39:20,461 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173796738]
[2024-11-18 14:39:20,461 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:20,461 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:39:20,461 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:20,462 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:39:20,462 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:20,462 INFO  L87              Difference]: Start difference. First operand 786 states and 1321 transitions. Second operand  has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 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)
[2024-11-18 14:39:20,504 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:20,505 INFO  L93              Difference]: Finished difference Result 1902 states and 3203 transitions.
[2024-11-18 14:39:20,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:39:20,506 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 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
[2024-11-18 14:39:20,506 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:20,514 INFO  L225             Difference]: With dead ends: 1902
[2024-11-18 14:39:20,515 INFO  L226             Difference]: Without dead ends: 1308
[2024-11-18 14:39:20,540 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:20,540 INFO  L432           NwaCegarLoop]: 470 mSDtfsCounter, 118 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:20,541 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 901 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:20,545 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1308 states.
[2024-11-18 14:39:20,565 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1298.
[2024-11-18 14:39:20,568 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1298 states, 1297 states have (on average 1.6723207401696223) internal successors, (2169), 1297 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:20,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 2169 transitions.
[2024-11-18 14:39:20,573 INFO  L78                 Accepts]: Start accepts. Automaton has 1298 states and 2169 transitions. Word has length 127
[2024-11-18 14:39:20,574 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:20,576 INFO  L471      AbstractCegarLoop]: Abstraction has 1298 states and 2169 transitions.
[2024-11-18 14:39:20,577 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 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)
[2024-11-18 14:39:20,577 INFO  L276                IsEmpty]: Start isEmpty. Operand 1298 states and 2169 transitions.
[2024-11-18 14:39:20,579 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2024-11-18 14:39:20,579 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:20,579 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]
[2024-11-18 14:39:20,579 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-18 14:39:20,579 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:20,580 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:20,580 INFO  L85        PathProgramCache]: Analyzing trace with hash 1273370830, now seen corresponding path program 1 times
[2024-11-18 14:39:20,580 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:20,580 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253334998]
[2024-11-18 14:39:20,580 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:20,580 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:20,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:20,778 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:20,778 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:20,779 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253334998]
[2024-11-18 14:39:20,779 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253334998] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:20,779 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:20,779 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:39:20,779 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520556251]
[2024-11-18 14:39:20,779 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:20,780 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:39:20,780 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:20,780 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:39:20,780 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:39:20,780 INFO  L87              Difference]: Start difference. First operand 1298 states and 2169 transitions. Second operand  has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:21,076 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:21,077 INFO  L93              Difference]: Finished difference Result 6530 states and 11093 transitions.
[2024-11-18 14:39:21,077 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-18 14:39:21,077 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 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 130
[2024-11-18 14:39:21,077 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:21,094 INFO  L225             Difference]: With dead ends: 6530
[2024-11-18 14:39:21,095 INFO  L226             Difference]: Without dead ends: 5424
[2024-11-18 14:39:21,098 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2024-11-18 14:39:21,100 INFO  L432           NwaCegarLoop]: 473 mSDtfsCounter, 1589 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:21,102 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 3516 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-18 14:39:21,108 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5424 states.
[2024-11-18 14:39:21,203 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5424 to 2326.
[2024-11-18 14:39:21,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2326 states, 2325 states have (on average 1.6748387096774193) internal successors, (3894), 2325 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:21,213 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3894 transitions.
[2024-11-18 14:39:21,214 INFO  L78                 Accepts]: Start accepts. Automaton has 2326 states and 3894 transitions. Word has length 130
[2024-11-18 14:39:21,214 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:21,214 INFO  L471      AbstractCegarLoop]: Abstraction has 2326 states and 3894 transitions.
[2024-11-18 14:39:21,215 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:21,215 INFO  L276                IsEmpty]: Start isEmpty. Operand 2326 states and 3894 transitions.
[2024-11-18 14:39:21,218 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-18 14:39:21,218 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:21,218 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]
[2024-11-18 14:39:21,218 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-18 14:39:21,219 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:21,219 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:21,220 INFO  L85        PathProgramCache]: Analyzing trace with hash -1274816655, now seen corresponding path program 1 times
[2024-11-18 14:39:21,220 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:21,220 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859473162]
[2024-11-18 14:39:21,220 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:21,220 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:21,256 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:21,352 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:21,353 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:21,353 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859473162]
[2024-11-18 14:39:21,353 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859473162] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:21,353 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:21,353 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 14:39:21,353 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404813856]
[2024-11-18 14:39:21,353 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:21,354 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 14:39:21,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:21,354 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 14:39:21,354 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 14:39:21,354 INFO  L87              Difference]: Start difference. First operand 2326 states and 3894 transitions. Second operand  has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:21,465 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:21,465 INFO  L93              Difference]: Finished difference Result 6744 states and 11406 transitions.
[2024-11-18 14:39:21,466 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 14:39:21,466 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 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 131
[2024-11-18 14:39:21,466 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:21,480 INFO  L225             Difference]: With dead ends: 6744
[2024-11-18 14:39:21,480 INFO  L226             Difference]: Without dead ends: 4610
[2024-11-18 14:39:21,486 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:39:21,488 INFO  L432           NwaCegarLoop]: 474 mSDtfsCounter, 457 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1511 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
[2024-11-18 14:39:21,488 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1511 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:39:21,494 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4610 states.
[2024-11-18 14:39:21,621 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4610 to 3451.
[2024-11-18 14:39:21,627 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3451 states, 3450 states have (on average 1.6805797101449276) internal successors, (5798), 3450 states have internal predecessors, (5798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:21,638 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 5798 transitions.
[2024-11-18 14:39:21,639 INFO  L78                 Accepts]: Start accepts. Automaton has 3451 states and 5798 transitions. Word has length 131
[2024-11-18 14:39:21,639 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:21,640 INFO  L471      AbstractCegarLoop]: Abstraction has 3451 states and 5798 transitions.
[2024-11-18 14:39:21,640 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:21,640 INFO  L276                IsEmpty]: Start isEmpty. Operand 3451 states and 5798 transitions.
[2024-11-18 14:39:21,642 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2024-11-18 14:39:21,643 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:21,643 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]
[2024-11-18 14:39:21,643 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-18 14:39:21,643 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:21,644 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:21,644 INFO  L85        PathProgramCache]: Analyzing trace with hash 1504754277, now seen corresponding path program 1 times
[2024-11-18 14:39:21,644 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:21,644 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474803446]
[2024-11-18 14:39:21,644 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:21,644 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:21,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:21,831 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:21,831 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:21,831 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474803446]
[2024-11-18 14:39:21,831 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474803446] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:21,831 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:21,832 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 14:39:21,832 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016842007]
[2024-11-18 14:39:21,832 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:21,832 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 14:39:21,832 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:21,833 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 14:39:21,833 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 14:39:21,833 INFO  L87              Difference]: Start difference. First operand 3451 states and 5798 transitions. Second operand  has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 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)
[2024-11-18 14:39:21,982 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:21,982 INFO  L93              Difference]: Finished difference Result 10068 states and 17008 transitions.
[2024-11-18 14:39:21,983 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 14:39:21,983 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 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
[2024-11-18 14:39:21,983 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:22,003 INFO  L225             Difference]: With dead ends: 10068
[2024-11-18 14:39:22,003 INFO  L226             Difference]: Without dead ends: 6809
[2024-11-18 14:39:22,009 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:39:22,011 INFO  L432           NwaCegarLoop]: 461 mSDtfsCounter, 457 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1424 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
[2024-11-18 14:39:22,011 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1424 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:39:22,019 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6809 states.
[2024-11-18 14:39:22,129 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6809 to 5106.
[2024-11-18 14:39:22,137 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5106 states, 5105 states have (on average 1.6789422135161607) internal successors, (8571), 5105 states have internal predecessors, (8571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:22,152 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5106 states to 5106 states and 8571 transitions.
[2024-11-18 14:39:22,153 INFO  L78                 Accepts]: Start accepts. Automaton has 5106 states and 8571 transitions. Word has length 132
[2024-11-18 14:39:22,153 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:22,153 INFO  L471      AbstractCegarLoop]: Abstraction has 5106 states and 8571 transitions.
[2024-11-18 14:39:22,153 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 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)
[2024-11-18 14:39:22,154 INFO  L276                IsEmpty]: Start isEmpty. Operand 5106 states and 8571 transitions.
[2024-11-18 14:39:22,156 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-18 14:39:22,156 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:22,156 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]
[2024-11-18 14:39:22,156 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-18 14:39:22,157 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:22,157 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:22,158 INFO  L85        PathProgramCache]: Analyzing trace with hash -1944006777, now seen corresponding path program 1 times
[2024-11-18 14:39:22,158 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:22,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747286565]
[2024-11-18 14:39:22,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:22,158 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:22,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:22,285 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:22,285 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:22,285 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747286565]
[2024-11-18 14:39:22,286 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747286565] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:22,286 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:22,286 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:39:22,286 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267763434]
[2024-11-18 14:39:22,286 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:22,286 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:39:22,286 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:22,287 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:39:22,287 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:22,287 INFO  L87              Difference]: Start difference. First operand 5106 states and 8571 transitions. Second operand  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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)
[2024-11-18 14:39:22,398 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:22,399 INFO  L93              Difference]: Finished difference Result 11425 states and 19299 transitions.
[2024-11-18 14:39:22,399 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:39:22,399 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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
[2024-11-18 14:39:22,400 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:22,442 INFO  L225             Difference]: With dead ends: 11425
[2024-11-18 14:39:22,442 INFO  L226             Difference]: Without dead ends: 7909
[2024-11-18 14:39:22,452 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:22,453 INFO  L432           NwaCegarLoop]: 592 mSDtfsCounter, 138 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1043 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
[2024-11-18 14:39:22,453 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1043 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:22,463 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7909 states.
[2024-11-18 14:39:22,596 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7909 to 7907.
[2024-11-18 14:39:22,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7907 states, 7906 states have (on average 1.6750569187958513) internal successors, (13243), 7906 states have internal predecessors, (13243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:22,646 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7907 states to 7907 states and 13243 transitions.
[2024-11-18 14:39:22,647 INFO  L78                 Accepts]: Start accepts. Automaton has 7907 states and 13243 transitions. Word has length 133
[2024-11-18 14:39:22,647 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:22,647 INFO  L471      AbstractCegarLoop]: Abstraction has 7907 states and 13243 transitions.
[2024-11-18 14:39:22,648 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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)
[2024-11-18 14:39:22,648 INFO  L276                IsEmpty]: Start isEmpty. Operand 7907 states and 13243 transitions.
[2024-11-18 14:39:22,649 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-18 14:39:22,649 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:22,650 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]
[2024-11-18 14:39:22,650 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-18 14:39:22,650 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:22,650 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:22,651 INFO  L85        PathProgramCache]: Analyzing trace with hash 1941111592, now seen corresponding path program 1 times
[2024-11-18 14:39:22,651 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:22,651 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494194699]
[2024-11-18 14:39:22,651 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:22,651 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:22,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:22,796 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:22,796 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:22,796 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494194699]
[2024-11-18 14:39:22,797 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494194699] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:22,797 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:22,797 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 14:39:22,797 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360302028]
[2024-11-18 14:39:22,797 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:22,797 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 14:39:22,798 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:22,798 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 14:39:22,799 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 14:39:22,799 INFO  L87              Difference]: Start difference. First operand 7907 states and 13243 transitions. Second operand  has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 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)
[2024-11-18 14:39:23,049 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:23,049 INFO  L93              Difference]: Finished difference Result 23494 states and 39550 transitions.
[2024-11-18 14:39:23,050 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 14:39:23,050 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 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
[2024-11-18 14:39:23,051 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:23,078 INFO  L225             Difference]: With dead ends: 23494
[2024-11-18 14:39:23,078 INFO  L226             Difference]: Without dead ends: 15781
[2024-11-18 14:39:23,090 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:39:23,091 INFO  L432           NwaCegarLoop]: 477 mSDtfsCounter, 455 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1518 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:23,091 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1518 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:23,104 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15781 states.
[2024-11-18 14:39:23,275 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15781 to 11788.
[2024-11-18 14:39:23,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11788 states, 11787 states have (on average 1.6726054127428522) internal successors, (19715), 11787 states have internal predecessors, (19715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:23,321 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11788 states to 11788 states and 19715 transitions.
[2024-11-18 14:39:23,322 INFO  L78                 Accepts]: Start accepts. Automaton has 11788 states and 19715 transitions. Word has length 133
[2024-11-18 14:39:23,322 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:23,322 INFO  L471      AbstractCegarLoop]: Abstraction has 11788 states and 19715 transitions.
[2024-11-18 14:39:23,322 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 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)
[2024-11-18 14:39:23,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 11788 states and 19715 transitions.
[2024-11-18 14:39:23,324 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-18 14:39:23,324 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:23,324 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]
[2024-11-18 14:39:23,324 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-18 14:39:23,324 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:23,325 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:23,325 INFO  L85        PathProgramCache]: Analyzing trace with hash 1631061960, now seen corresponding path program 1 times
[2024-11-18 14:39:23,325 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:23,325 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988331173]
[2024-11-18 14:39:23,325 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:23,325 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:23,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:23,477 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:23,477 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:23,477 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988331173]
[2024-11-18 14:39:23,478 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988331173] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:23,478 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:23,478 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:39:23,478 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547601912]
[2024-11-18 14:39:23,478 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:23,478 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:39:23,479 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:23,479 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:39:23,479 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:23,479 INFO  L87              Difference]: Start difference. First operand 11788 states and 19715 transitions. Second operand  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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)
[2024-11-18 14:39:23,625 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:23,625 INFO  L93              Difference]: Finished difference Result 23685 states and 39649 transitions.
[2024-11-18 14:39:23,626 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:39:23,626 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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
[2024-11-18 14:39:23,626 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:23,655 INFO  L225             Difference]: With dead ends: 23685
[2024-11-18 14:39:23,656 INFO  L226             Difference]: Without dead ends: 17075
[2024-11-18 14:39:23,670 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:23,671 INFO  L432           NwaCegarLoop]: 531 mSDtfsCounter, 117 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 985 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
[2024-11-18 14:39:23,671 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 985 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:23,689 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17075 states.
[2024-11-18 14:39:24,075 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17075 to 17073.
[2024-11-18 14:39:24,100 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17073 states, 17072 states have (on average 1.6617268041237114) internal successors, (28369), 17072 states have internal predecessors, (28369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:24,136 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17073 states to 17073 states and 28369 transitions.
[2024-11-18 14:39:24,137 INFO  L78                 Accepts]: Start accepts. Automaton has 17073 states and 28369 transitions. Word has length 133
[2024-11-18 14:39:24,137 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:24,137 INFO  L471      AbstractCegarLoop]: Abstraction has 17073 states and 28369 transitions.
[2024-11-18 14:39:24,138 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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)
[2024-11-18 14:39:24,138 INFO  L276                IsEmpty]: Start isEmpty. Operand 17073 states and 28369 transitions.
[2024-11-18 14:39:24,139 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-18 14:39:24,140 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:24,140 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]
[2024-11-18 14:39:24,140 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-18 14:39:24,140 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:24,141 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:24,141 INFO  L85        PathProgramCache]: Analyzing trace with hash -15643545, now seen corresponding path program 1 times
[2024-11-18 14:39:24,141 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:24,141 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269491941]
[2024-11-18 14:39:24,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:24,141 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:24,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:24,245 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:24,246 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:24,246 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269491941]
[2024-11-18 14:39:24,246 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269491941] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:24,246 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:24,246 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:39:24,246 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683547445]
[2024-11-18 14:39:24,247 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:24,247 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:39:24,247 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:24,248 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:39:24,248 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:24,248 INFO  L87              Difference]: Start difference. First operand 17073 states and 28369 transitions. Second operand  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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)
[2024-11-18 14:39:24,560 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:24,560 INFO  L93              Difference]: Finished difference Result 38023 states and 63245 transitions.
[2024-11-18 14:39:24,561 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:39:24,561 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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
[2024-11-18 14:39:24,561 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:24,612 INFO  L225             Difference]: With dead ends: 38023
[2024-11-18 14:39:24,612 INFO  L226             Difference]: Without dead ends: 26128
[2024-11-18 14:39:24,636 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:24,637 INFO  L432           NwaCegarLoop]: 560 mSDtfsCounter, 124 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1013 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
[2024-11-18 14:39:24,637 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1013 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:24,660 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26128 states.
[2024-11-18 14:39:25,219 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26128 to 26126.
[2024-11-18 14:39:25,254 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26126 states, 26125 states have (on average 1.6492631578947368) internal successors, (43087), 26125 states have internal predecessors, (43087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:25,418 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26126 states to 26126 states and 43087 transitions.
[2024-11-18 14:39:25,420 INFO  L78                 Accepts]: Start accepts. Automaton has 26126 states and 43087 transitions. Word has length 133
[2024-11-18 14:39:25,420 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:25,420 INFO  L471      AbstractCegarLoop]: Abstraction has 26126 states and 43087 transitions.
[2024-11-18 14:39:25,420 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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)
[2024-11-18 14:39:25,420 INFO  L276                IsEmpty]: Start isEmpty. Operand 26126 states and 43087 transitions.
[2024-11-18 14:39:25,421 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-18 14:39:25,421 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:25,421 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]
[2024-11-18 14:39:25,422 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-18 14:39:25,422 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:25,422 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:25,422 INFO  L85        PathProgramCache]: Analyzing trace with hash 2123016934, now seen corresponding path program 1 times
[2024-11-18 14:39:25,422 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:25,422 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005121869]
[2024-11-18 14:39:25,423 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:25,423 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:25,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:25,504 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:25,505 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:25,505 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005121869]
[2024-11-18 14:39:25,505 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005121869] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:25,505 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:25,505 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:39:25,505 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118505431]
[2024-11-18 14:39:25,505 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:25,506 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:39:25,506 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:25,506 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:39:25,506 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:25,506 INFO  L87              Difference]: Start difference. First operand 26126 states and 43087 transitions. Second operand  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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)
[2024-11-18 14:39:26,006 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:26,007 INFO  L93              Difference]: Finished difference Result 58253 states and 96104 transitions.
[2024-11-18 14:39:26,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:39:26,008 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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
[2024-11-18 14:39:26,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:26,088 INFO  L225             Difference]: With dead ends: 58253
[2024-11-18 14:39:26,089 INFO  L226             Difference]: Without dead ends: 39892
[2024-11-18 14:39:26,115 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:26,116 INFO  L432           NwaCegarLoop]: 590 mSDtfsCounter, 131 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1042 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
[2024-11-18 14:39:26,116 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 1042 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:26,143 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39892 states.
[2024-11-18 14:39:26,843 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39892 to 39890.
[2024-11-18 14:39:26,894 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39890 states, 39889 states have (on average 1.633708541201835) internal successors, (65167), 39889 states have internal predecessors, (65167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:26,967 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39890 states to 39890 states and 65167 transitions.
[2024-11-18 14:39:26,969 INFO  L78                 Accepts]: Start accepts. Automaton has 39890 states and 65167 transitions. Word has length 133
[2024-11-18 14:39:26,969 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:26,969 INFO  L471      AbstractCegarLoop]: Abstraction has 39890 states and 65167 transitions.
[2024-11-18 14:39:26,969 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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)
[2024-11-18 14:39:26,970 INFO  L276                IsEmpty]: Start isEmpty. Operand 39890 states and 65167 transitions.
[2024-11-18 14:39:26,970 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-11-18 14:39:26,970 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:26,970 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, 1]
[2024-11-18 14:39:26,971 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-18 14:39:26,971 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:26,971 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:26,971 INFO  L85        PathProgramCache]: Analyzing trace with hash -1542676484, now seen corresponding path program 1 times
[2024-11-18 14:39:26,971 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:26,971 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762918331]
[2024-11-18 14:39:26,971 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:26,972 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:27,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:27,094 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:27,095 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:27,095 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762918331]
[2024-11-18 14:39:27,095 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762918331] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:27,095 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:27,095 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 14:39:27,095 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655885862]
[2024-11-18 14:39:27,095 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:27,096 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 14:39:27,096 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:27,096 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 14:39:27,096 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 14:39:27,097 INFO  L87              Difference]: Start difference. First operand 39890 states and 65167 transitions. Second operand  has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:28,289 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:28,290 INFO  L93              Difference]: Finished difference Result 129245 states and 211740 transitions.
[2024-11-18 14:39:28,290 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 14:39:28,290 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 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 134
[2024-11-18 14:39:28,291 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:28,517 INFO  L225             Difference]: With dead ends: 129245
[2024-11-18 14:39:28,517 INFO  L226             Difference]: Without dead ends: 89570
[2024-11-18 14:39:28,573 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:39:28,573 INFO  L432           NwaCegarLoop]: 462 mSDtfsCounter, 453 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:28,574 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1505 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-18 14:39:28,640 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89570 states.
[2024-11-18 14:39:29,981 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89570 to 64505.
[2024-11-18 14:39:30,085 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64505 states, 64504 states have (on average 1.626658811856629) internal successors, (104926), 64504 states have internal predecessors, (104926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:30,244 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64505 states to 64505 states and 104926 transitions.
[2024-11-18 14:39:30,249 INFO  L78                 Accepts]: Start accepts. Automaton has 64505 states and 104926 transitions. Word has length 134
[2024-11-18 14:39:30,249 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:30,250 INFO  L471      AbstractCegarLoop]: Abstraction has 64505 states and 104926 transitions.
[2024-11-18 14:39:30,250 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:30,250 INFO  L276                IsEmpty]: Start isEmpty. Operand 64505 states and 104926 transitions.
[2024-11-18 14:39:30,251 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2024-11-18 14:39:30,251 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:30,251 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, 1, 1, 1]
[2024-11-18 14:39:30,251 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-18 14:39:30,252 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:30,252 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:30,252 INFO  L85        PathProgramCache]: Analyzing trace with hash 1330430292, now seen corresponding path program 1 times
[2024-11-18 14:39:30,252 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:30,253 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221745801]
[2024-11-18 14:39:30,253 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:30,253 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:30,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:30,989 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:30,990 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:30,993 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221745801]
[2024-11-18 14:39:30,993 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221745801] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:30,993 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:30,993 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:39:30,994 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507265820]
[2024-11-18 14:39:30,994 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:30,994 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:39:30,994 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:30,994 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:39:30,995 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:39:30,995 INFO  L87              Difference]: Start difference. First operand 64505 states and 104926 transitions. Second operand  has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:31,837 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:31,838 INFO  L93              Difference]: Finished difference Result 128797 states and 209509 transitions.
[2024-11-18 14:39:31,838 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 14:39:31,838 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 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 136
[2024-11-18 14:39:31,839 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:31,949 INFO  L225             Difference]: With dead ends: 128797
[2024-11-18 14:39:31,949 INFO  L226             Difference]: Without dead ends: 64507
[2024-11-18 14:39:31,981 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2024-11-18 14:39:31,982 INFO  L432           NwaCegarLoop]: 470 mSDtfsCounter, 479 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:31,982 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1781 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:39:32,024 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64507 states.
[2024-11-18 14:39:33,092 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64507 to 64505.
[2024-11-18 14:39:33,169 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64505 states, 64504 states have (on average 1.6169694902641696) internal successors, (104301), 64504 states have internal predecessors, (104301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:33,333 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64505 states to 64505 states and 104301 transitions.
[2024-11-18 14:39:33,337 INFO  L78                 Accepts]: Start accepts. Automaton has 64505 states and 104301 transitions. Word has length 136
[2024-11-18 14:39:33,337 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:33,337 INFO  L471      AbstractCegarLoop]: Abstraction has 64505 states and 104301 transitions.
[2024-11-18 14:39:33,337 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:33,338 INFO  L276                IsEmpty]: Start isEmpty. Operand 64505 states and 104301 transitions.
[2024-11-18 14:39:33,339 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2024-11-18 14:39:33,339 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:33,339 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:39:33,339 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-18 14:39:33,339 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:33,340 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:33,340 INFO  L85        PathProgramCache]: Analyzing trace with hash -156781653, now seen corresponding path program 1 times
[2024-11-18 14:39:33,340 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:33,340 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203517497]
[2024-11-18 14:39:33,340 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:33,341 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:33,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:33,647 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:33,647 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:33,648 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203517497]
[2024-11-18 14:39:33,648 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203517497] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:33,648 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:33,648 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:39:33,648 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337576027]
[2024-11-18 14:39:33,648 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:33,649 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:39:33,649 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:33,649 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:39:33,649 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:39:33,650 INFO  L87              Difference]: Start difference. First operand 64505 states and 104301 transitions. Second operand  has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:35,117 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:35,117 INFO  L93              Difference]: Finished difference Result 188667 states and 305529 transitions.
[2024-11-18 14:39:35,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 14:39:35,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 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 139
[2024-11-18 14:39:35,118 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:35,357 INFO  L225             Difference]: With dead ends: 188667
[2024-11-18 14:39:35,358 INFO  L226             Difference]: Without dead ends: 124377
[2024-11-18 14:39:35,412 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
[2024-11-18 14:39:35,416 INFO  L432           NwaCegarLoop]: 461 mSDtfsCounter, 471 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:35,417 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1790 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:39:35,517 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 124377 states.
[2024-11-18 14:39:37,494 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 124377 to 124375.
[2024-11-18 14:39:37,627 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 124375 states, 124374 states have (on average 1.6044671715953496) internal successors, (199554), 124374 states have internal predecessors, (199554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:37,934 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124375 states to 124375 states and 199554 transitions.
[2024-11-18 14:39:37,942 INFO  L78                 Accepts]: Start accepts. Automaton has 124375 states and 199554 transitions. Word has length 139
[2024-11-18 14:39:37,943 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:37,943 INFO  L471      AbstractCegarLoop]: Abstraction has 124375 states and 199554 transitions.
[2024-11-18 14:39:37,944 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:37,944 INFO  L276                IsEmpty]: Start isEmpty. Operand 124375 states and 199554 transitions.
[2024-11-18 14:39:37,947 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-11-18 14:39:37,947 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:37,947 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, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:39:37,947 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-18 14:39:37,947 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:37,948 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:37,948 INFO  L85        PathProgramCache]: Analyzing trace with hash -996609347, now seen corresponding path program 1 times
[2024-11-18 14:39:37,948 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:37,948 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604584819]
[2024-11-18 14:39:37,948 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:37,949 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:38,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:38,771 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:38,771 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:38,771 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604584819]
[2024-11-18 14:39:38,771 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604584819] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:38,771 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:38,771 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-18 14:39:38,772 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038073490]
[2024-11-18 14:39:38,772 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:38,772 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-18 14:39:38,772 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:38,772 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-18 14:39:38,772 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 14:39:38,772 INFO  L87              Difference]: Start difference. First operand 124375 states and 199554 transitions. Second operand  has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:39,742 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:39,742 INFO  L93              Difference]: Finished difference Result 130185 states and 207299 transitions.
[2024-11-18 14:39:39,742 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-18 14:39:39,742 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 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 140
[2024-11-18 14:39:39,743 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:39,932 INFO  L225             Difference]: With dead ends: 130185
[2024-11-18 14:39:39,932 INFO  L226             Difference]: Without dead ends: 130183
[2024-11-18 14:39:39,968 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 14:39:39,969 INFO  L432           NwaCegarLoop]: 467 mSDtfsCounter, 0 mSDsluCounter, 2783 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:39,969 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3250 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:40,057 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 130183 states.
[2024-11-18 14:39:42,392 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 130183 to 130183.
[2024-11-18 14:39:42,510 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 130183 states, 130182 states have (on average 1.5772917914919113) internal successors, (205335), 130182 states have internal predecessors, (205335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:43,207 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 130183 states to 130183 states and 205335 transitions.
[2024-11-18 14:39:43,213 INFO  L78                 Accepts]: Start accepts. Automaton has 130183 states and 205335 transitions. Word has length 140
[2024-11-18 14:39:43,213 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:43,213 INFO  L471      AbstractCegarLoop]: Abstraction has 130183 states and 205335 transitions.
[2024-11-18 14:39:43,214 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:43,214 INFO  L276                IsEmpty]: Start isEmpty. Operand 130183 states and 205335 transitions.
[2024-11-18 14:39:43,216 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-18 14:39:43,216 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:43,217 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:39:43,217 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-18 14:39:43,217 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:43,217 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:43,217 INFO  L85        PathProgramCache]: Analyzing trace with hash -1661783656, now seen corresponding path program 1 times
[2024-11-18 14:39:43,217 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:43,218 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817856453]
[2024-11-18 14:39:43,218 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:43,218 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:43,247 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:43,312 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:39:43,312 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:43,312 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817856453]
[2024-11-18 14:39:43,312 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817856453] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:43,312 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:43,312 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:39:43,312 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823862410]
[2024-11-18 14:39:43,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:43,313 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:39:43,313 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:43,313 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:39:43,313 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:43,314 INFO  L87              Difference]: Start difference. First operand 130183 states and 205335 transitions. Second operand  has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:45,573 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:45,573 INFO  L93              Difference]: Finished difference Result 389528 states and 613982 transitions.
[2024-11-18 14:39:45,574 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:39:45,574 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 177
[2024-11-18 14:39:45,574 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:46,113 INFO  L225             Difference]: With dead ends: 389528
[2024-11-18 14:39:46,114 INFO  L226             Difference]: Without dead ends: 259404
[2024-11-18 14:39:46,222 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:46,223 INFO  L432           NwaCegarLoop]: 733 mSDtfsCounter, 349 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:46,224 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1190 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:39:46,425 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 259404 states.
[2024-11-18 14:39:50,998 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 259404 to 259402.
[2024-11-18 14:39:51,222 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 259402 states, 259401 states have (on average 1.567040990589859) internal successors, (406492), 259401 states have internal predecessors, (406492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:51,954 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 259402 states to 259402 states and 406492 transitions.
[2024-11-18 14:39:51,966 INFO  L78                 Accepts]: Start accepts. Automaton has 259402 states and 406492 transitions. Word has length 177
[2024-11-18 14:39:51,968 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:39:51,968 INFO  L471      AbstractCegarLoop]: Abstraction has 259402 states and 406492 transitions.
[2024-11-18 14:39:51,968 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:51,968 INFO  L276                IsEmpty]: Start isEmpty. Operand 259402 states and 406492 transitions.
[2024-11-18 14:39:51,979 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-18 14:39:51,979 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:39:51,983 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:39:51,983 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-18 14:39:51,984 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:39:51,984 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:39:51,984 INFO  L85        PathProgramCache]: Analyzing trace with hash 1913285081, now seen corresponding path program 1 times
[2024-11-18 14:39:51,984 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:39:51,984 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550627492]
[2024-11-18 14:39:51,984 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:39:51,985 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:39:52,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:39:52,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2024-11-18 14:39:52,160 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:39:52,160 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550627492]
[2024-11-18 14:39:52,160 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550627492] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:39:52,160 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:39:52,160 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:39:52,161 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203210319]
[2024-11-18 14:39:52,161 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:39:52,161 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:39:52,161 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:39:52,162 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:39:52,162 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:52,162 INFO  L87              Difference]: Start difference. First operand 259402 states and 406492 transitions. Second operand  has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:39:58,296 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:39:58,297 INFO  L93              Difference]: Finished difference Result 776268 states and 1215619 transitions.
[2024-11-18 14:39:58,297 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:39:58,297 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 177
[2024-11-18 14:39:58,298 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:39:59,513 INFO  L225             Difference]: With dead ends: 776268
[2024-11-18 14:39:59,514 INFO  L226             Difference]: Without dead ends: 516929
[2024-11-18 14:39:59,681 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:39:59,682 INFO  L432           NwaCegarLoop]: 737 mSDtfsCounter, 351 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:39:59,682 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1194 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:40:00,083 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 516929 states.