./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.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-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 695c99bbb2ee4f955d16991d39d1ac6b5b32c36e8696260349d8fb0dae4c113f
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 14:55:47,391 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 14:55:47,466 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 14:55:47,472 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 14:55:47,473 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 14:55:47,505 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 14:55:47,506 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 14:55:47,506 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 14:55:47,507 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 14:55:47,508 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 14:55:47,509 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 14:55:47,509 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 14:55:47,510 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 14:55:47,512 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 14:55:47,512 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 14:55:47,512 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 14:55:47,513 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 14:55:47,513 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 14:55:47,513 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 14:55:47,514 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 14:55:47,514 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 14:55:47,516 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 14:55:47,516 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 14:55:47,517 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 14:55:47,517 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 14:55:47,517 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 14:55:47,517 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 14:55:47,518 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 14:55:47,518 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 14:55:47,518 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 14:55:47,519 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 14:55:47,519 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 14:55:47,519 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 14:55:47,520 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 14:55:47,520 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 14:55:47,520 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 14:55:47,520 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 14:55:47,521 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 14:55:47,521 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 14:55:47,521 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 14:55:47,522 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 14:55:47,522 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 14:55:47,523 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 -> 695c99bbb2ee4f955d16991d39d1ac6b5b32c36e8696260349d8fb0dae4c113f
[2024-11-18 14:55:47,797 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 14:55:47,818 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 14:55:47,821 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 14:55:47,822 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 14:55:47,823 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 14:55:47,823 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c
[2024-11-18 14:55:49,195 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 14:55:49,471 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 14:55:49,475 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c
[2024-11-18 14:55:49,501 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb05d2f76/267e2b35694f42c19ee086c9b2699ead/FLAG85860855d
[2024-11-18 14:55:49,520 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb05d2f76/267e2b35694f42c19ee086c9b2699ead
[2024-11-18 14:55:49,524 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 14:55:49,526 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 14:55:49,528 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 14:55:49,530 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 14:55:49,537 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 14:55:49,538 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:55:49" (1/1) ...
[2024-11-18 14:55:49,539 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15932a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:49, skipping insertion in model container
[2024-11-18 14:55:49,539 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:55:49" (1/1) ...
[2024-11-18 14:55:49,594 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 14:55:49,942 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12834,12847]
[2024-11-18 14:55:50,032 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 14:55:50,053 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 14:55:50,143 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12834,12847]
[2024-11-18 14:55:50,189 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 14:55:50,217 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 14:55:50,218 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50 WrapperNode
[2024-11-18 14:55:50,218 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 14:55:50,219 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 14:55:50,219 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 14:55:50,219 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 14:55:50,228 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,248 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,312 INFO  L138                Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1363
[2024-11-18 14:55:50,316 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 14:55:50,317 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 14:55:50,318 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 14:55:50,318 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 14:55:50,329 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,329 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,337 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,362 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 14:55:50,363 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,363 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,395 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,414 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,430 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,436 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,454 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 14:55:50,455 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 14:55:50,455 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 14:55:50,456 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 14:55:50,456 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (1/1) ...
[2024-11-18 14:55:50,462 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 14:55:50,477 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 14:55:50,495 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 14:55:50,503 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 14:55:50,547 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 14:55:50,548 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 14:55:50,549 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 14:55:50,550 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 14:55:50,732 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 14:55:50,734 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 14:55:52,001 INFO  L?                        ?]: Removed 120 outVars from TransFormulas that were not future-live.
[2024-11-18 14:55:52,002 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 14:55:52,033 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 14:55:52,034 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-18 14:55:52,035 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:55:52 BoogieIcfgContainer
[2024-11-18 14:55:52,035 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 14:55:52,038 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 14:55:52,038 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 14:55:52,041 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 14:55:52,042 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:55:49" (1/3) ...
[2024-11-18 14:55:52,042 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425e81f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:55:52, skipping insertion in model container
[2024-11-18 14:55:52,043 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:50" (2/3) ...
[2024-11-18 14:55:52,043 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425e81f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:55:52, skipping insertion in model container
[2024-11-18 14:55:52,043 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:55:52" (3/3) ...
[2024-11-18 14:55:52,045 INFO  L112   eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c
[2024-11-18 14:55:52,062 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 14:55:52,062 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 14:55:52,145 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 14:55:52,154 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;@164c49aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 14:55:52,155 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 14:55:52,163 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 319 states, 317 states have (on average 1.804416403785489) internal successors, (572), 318 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:52,182 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-18 14:55:52,183 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:52,184 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:55:52,184 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:52,190 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:52,191 INFO  L85        PathProgramCache]: Analyzing trace with hash 304488522, now seen corresponding path program 1 times
[2024-11-18 14:55:52,200 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:52,201 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985763454]
[2024-11-18 14:55:52,201 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:52,201 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:52,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:52,901 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 14:55:52,902 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:52,902 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985763454]
[2024-11-18 14:55:52,904 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985763454] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:52,904 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:52,905 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:55:52,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547508843]
[2024-11-18 14:55:52,907 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:52,915 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:55:52,915 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:52,942 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:55:52,943 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:55:52,946 INFO  L87              Difference]: Start difference. First operand  has 319 states, 317 states have (on average 1.804416403785489) internal successors, (572), 318 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:53,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:53,093 INFO  L93              Difference]: Finished difference Result 568 states and 991 transitions.
[2024-11-18 14:55:53,095 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:55:53,096 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111
[2024-11-18 14:55:53,097 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:53,113 INFO  L225             Difference]: With dead ends: 568
[2024-11-18 14:55:53,113 INFO  L226             Difference]: Without dead ends: 432
[2024-11-18 14:55:53,118 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 14:55:53,124 INFO  L432           NwaCegarLoop]: 728 mSDtfsCounter, 222 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:53,127 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1218 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:55:53,152 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 432 states.
[2024-11-18 14:55:53,191 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 430.
[2024-11-18 14:55:53,195 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 430 states, 429 states have (on average 1.6643356643356644) internal successors, (714), 429 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:53,200 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 714 transitions.
[2024-11-18 14:55:53,201 INFO  L78                 Accepts]: Start accepts. Automaton has 430 states and 714 transitions. Word has length 111
[2024-11-18 14:55:53,202 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:55:53,203 INFO  L471      AbstractCegarLoop]: Abstraction has 430 states and 714 transitions.
[2024-11-18 14:55:53,203 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:53,203 INFO  L276                IsEmpty]: Start isEmpty. Operand 430 states and 714 transitions.
[2024-11-18 14:55:53,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-18 14:55:53,210 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:53,210 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:55:53,210 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-18 14:55:53,211 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:53,211 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:53,211 INFO  L85        PathProgramCache]: Analyzing trace with hash -1517208970, now seen corresponding path program 1 times
[2024-11-18 14:55:53,212 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:53,212 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847020852]
[2024-11-18 14:55:53,212 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:53,216 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:53,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:53,499 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 14:55:53,500 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:53,501 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847020852]
[2024-11-18 14:55:53,501 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847020852] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:53,501 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:53,501 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:55:53,501 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467677549]
[2024-11-18 14:55:53,502 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:53,504 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:55:53,504 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:53,505 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:55:53,505 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:55:53,505 INFO  L87              Difference]: Start difference. First operand 430 states and 714 transitions. Second operand  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:53,552 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:53,552 INFO  L93              Difference]: Finished difference Result 660 states and 1105 transitions.
[2024-11-18 14:55:53,553 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:55:53,553 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114
[2024-11-18 14:55:53,555 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:53,560 INFO  L225             Difference]: With dead ends: 660
[2024-11-18 14:55:53,560 INFO  L226             Difference]: Without dead ends: 533
[2024-11-18 14:55:53,561 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 14:55:53,562 INFO  L432           NwaCegarLoop]: 685 mSDtfsCounter, 196 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:53,563 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1173 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:55:53,565 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 533 states.
[2024-11-18 14:55:53,592 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531.
[2024-11-18 14:55:53,594 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 531 states, 530 states have (on average 1.6716981132075472) internal successors, (886), 530 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:53,599 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 886 transitions.
[2024-11-18 14:55:53,600 INFO  L78                 Accepts]: Start accepts. Automaton has 531 states and 886 transitions. Word has length 114
[2024-11-18 14:55:53,600 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:55:53,600 INFO  L471      AbstractCegarLoop]: Abstraction has 531 states and 886 transitions.
[2024-11-18 14:55:53,600 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:53,601 INFO  L276                IsEmpty]: Start isEmpty. Operand 531 states and 886 transitions.
[2024-11-18 14:55:53,603 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-18 14:55:53,603 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:53,603 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:55:53,603 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 14:55:53,603 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:53,604 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:53,604 INFO  L85        PathProgramCache]: Analyzing trace with hash -1179194652, now seen corresponding path program 1 times
[2024-11-18 14:55:53,604 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:53,608 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37341517]
[2024-11-18 14:55:53,609 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:53,609 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:53,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:53,888 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 14:55:53,889 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:53,889 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37341517]
[2024-11-18 14:55:53,889 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37341517] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:53,889 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:53,890 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:55:53,890 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811755516]
[2024-11-18 14:55:53,890 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:53,892 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:55:53,892 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:53,893 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:55:53,893 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:55:53,893 INFO  L87              Difference]: Start difference. First operand 531 states and 886 transitions. Second operand  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:53,933 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:53,934 INFO  L93              Difference]: Finished difference Result 1184 states and 1985 transitions.
[2024-11-18 14:55:53,935 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:55:53,935 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114
[2024-11-18 14:55:53,936 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:53,939 INFO  L225             Difference]: With dead ends: 1184
[2024-11-18 14:55:53,940 INFO  L226             Difference]: Without dead ends: 844
[2024-11-18 14:55:53,941 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 14:55:53,944 INFO  L432           NwaCegarLoop]: 665 mSDtfsCounter, 189 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:53,946 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1151 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:55:53,948 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 844 states.
[2024-11-18 14:55:53,968 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 842.
[2024-11-18 14:55:53,970 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 842 states, 841 states have (on average 1.671819262782402) internal successors, (1406), 841 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:53,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1406 transitions.
[2024-11-18 14:55:53,973 INFO  L78                 Accepts]: Start accepts. Automaton has 842 states and 1406 transitions. Word has length 114
[2024-11-18 14:55:53,973 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:55:53,973 INFO  L471      AbstractCegarLoop]: Abstraction has 842 states and 1406 transitions.
[2024-11-18 14:55:53,974 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:53,974 INFO  L276                IsEmpty]: Start isEmpty. Operand 842 states and 1406 transitions.
[2024-11-18 14:55:53,975 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2024-11-18 14:55:53,977 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:53,977 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:55:53,977 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 14:55:53,978 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:53,978 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:53,979 INFO  L85        PathProgramCache]: Analyzing trace with hash -236553538, now seen corresponding path program 1 times
[2024-11-18 14:55:53,979 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:53,979 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713112068]
[2024-11-18 14:55:53,979 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:53,980 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:54,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:54,134 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 14:55:54,135 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:54,136 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713112068]
[2024-11-18 14:55:54,136 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713112068] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:54,136 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:54,136 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:55:54,136 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439741558]
[2024-11-18 14:55:54,136 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:54,137 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:55:54,138 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:54,139 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:55:54,139 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:55:54,139 INFO  L87              Difference]: Start difference. First operand 842 states and 1406 transitions. Second operand  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:54,201 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:54,202 INFO  L93              Difference]: Finished difference Result 1462 states and 2452 transitions.
[2024-11-18 14:55:54,202 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:55:54,202 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117
[2024-11-18 14:55:54,204 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:54,208 INFO  L225             Difference]: With dead ends: 1462
[2024-11-18 14:55:54,208 INFO  L226             Difference]: Without dead ends: 1122
[2024-11-18 14:55:54,211 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 14:55:54,212 INFO  L432           NwaCegarLoop]: 657 mSDtfsCounter, 190 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:54,213 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1146 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:55:54,215 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1122 states.
[2024-11-18 14:55:54,232 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1120.
[2024-11-18 14:55:54,235 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1120 states, 1119 states have (on average 1.6729222520107239) internal successors, (1872), 1119 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:54,239 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1872 transitions.
[2024-11-18 14:55:54,239 INFO  L78                 Accepts]: Start accepts. Automaton has 1120 states and 1872 transitions. Word has length 117
[2024-11-18 14:55:54,239 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:55:54,239 INFO  L471      AbstractCegarLoop]: Abstraction has 1120 states and 1872 transitions.
[2024-11-18 14:55:54,240 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:54,240 INFO  L276                IsEmpty]: Start isEmpty. Operand 1120 states and 1872 transitions.
[2024-11-18 14:55:54,241 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2024-11-18 14:55:54,241 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:54,242 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:55:54,242 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 14:55:54,242 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:54,243 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:54,243 INFO  L85        PathProgramCache]: Analyzing trace with hash 2147173936, now seen corresponding path program 1 times
[2024-11-18 14:55:54,243 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:54,243 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478291795]
[2024-11-18 14:55:54,244 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:54,244 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:54,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:54,431 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 14:55:54,431 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:54,431 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478291795]
[2024-11-18 14:55:54,436 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478291795] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:54,436 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:54,437 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:55:54,437 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324957197]
[2024-11-18 14:55:54,437 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:54,437 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:55:54,437 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:54,438 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:55:54,438 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:55:54,438 INFO  L87              Difference]: Start difference. First operand 1120 states and 1872 transitions. Second operand  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:54,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:54,488 INFO  L93              Difference]: Finished difference Result 2861 states and 4787 transitions.
[2024-11-18 14:55:54,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:55:54,489 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117
[2024-11-18 14:55:54,489 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:54,497 INFO  L225             Difference]: With dead ends: 2861
[2024-11-18 14:55:54,498 INFO  L226             Difference]: Without dead ends: 1950
[2024-11-18 14:55:54,499 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 14:55:54,501 INFO  L432           NwaCegarLoop]: 638 mSDtfsCounter, 183 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:54,502 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1125 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:55:54,504 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1950 states.
[2024-11-18 14:55:54,536 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1948.
[2024-11-18 14:55:54,540 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1948 states, 1947 states have (on average 1.6656394453004622) internal successors, (3243), 1947 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:54,546 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 3243 transitions.
[2024-11-18 14:55:54,547 INFO  L78                 Accepts]: Start accepts. Automaton has 1948 states and 3243 transitions. Word has length 117
[2024-11-18 14:55:54,548 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:55:54,548 INFO  L471      AbstractCegarLoop]: Abstraction has 1948 states and 3243 transitions.
[2024-11-18 14:55:54,548 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:54,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 1948 states and 3243 transitions.
[2024-11-18 14:55:54,550 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-18 14:55:54,550 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:54,550 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:55:54,551 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 14:55:54,551 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:54,551 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:54,551 INFO  L85        PathProgramCache]: Analyzing trace with hash 866565200, now seen corresponding path program 1 times
[2024-11-18 14:55:54,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:54,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647730879]
[2024-11-18 14:55:54,552 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:54,552 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:54,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:54,685 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 14:55:54,686 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:54,686 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647730879]
[2024-11-18 14:55:54,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647730879] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:54,688 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:54,688 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:55:54,688 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987233202]
[2024-11-18 14:55:54,688 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:54,688 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:55:54,689 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:54,689 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:55:54,689 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:55:54,690 INFO  L87              Difference]: Start difference. First operand 1948 states and 3243 transitions. Second operand  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:54,745 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:54,746 INFO  L93              Difference]: Finished difference Result 3554 states and 5943 transitions.
[2024-11-18 14:55:54,747 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:55:54,747 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120
[2024-11-18 14:55:54,747 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:54,760 INFO  L225             Difference]: With dead ends: 3554
[2024-11-18 14:55:54,761 INFO  L226             Difference]: Without dead ends: 2643
[2024-11-18 14:55:54,764 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 14:55:54,766 INFO  L432           NwaCegarLoop]: 629 mSDtfsCounter, 184 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:54,767 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1119 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:55:54,770 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2643 states.
[2024-11-18 14:55:54,847 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 2641.
[2024-11-18 14:55:54,852 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2641 states, 2640 states have (on average 1.665909090909091) internal successors, (4398), 2640 states have internal predecessors, (4398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:54,862 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2641 states to 2641 states and 4398 transitions.
[2024-11-18 14:55:54,865 INFO  L78                 Accepts]: Start accepts. Automaton has 2641 states and 4398 transitions. Word has length 120
[2024-11-18 14:55:54,865 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:55:54,865 INFO  L471      AbstractCegarLoop]: Abstraction has 2641 states and 4398 transitions.
[2024-11-18 14:55:54,867 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:54,867 INFO  L276                IsEmpty]: Start isEmpty. Operand 2641 states and 4398 transitions.
[2024-11-18 14:55:54,868 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-18 14:55:54,869 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:54,869 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:55:54,869 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-18 14:55:54,869 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:54,870 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:54,870 INFO  L85        PathProgramCache]: Analyzing trace with hash 83170558, now seen corresponding path program 1 times
[2024-11-18 14:55:54,870 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:54,870 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889791306]
[2024-11-18 14:55:54,870 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:54,871 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:54,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:55,043 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 14:55:55,045 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:55,045 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889791306]
[2024-11-18 14:55:55,045 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889791306] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:55,045 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:55,045 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:55:55,045 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110098008]
[2024-11-18 14:55:55,045 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:55,046 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:55:55,046 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:55,046 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:55:55,047 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:55:55,047 INFO  L87              Difference]: Start difference. First operand 2641 states and 4398 transitions. Second operand  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:55,111 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:55,111 INFO  L93              Difference]: Finished difference Result 7226 states and 12005 transitions.
[2024-11-18 14:55:55,112 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:55:55,112 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120
[2024-11-18 14:55:55,113 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:55,132 INFO  L225             Difference]: With dead ends: 7226
[2024-11-18 14:55:55,132 INFO  L226             Difference]: Without dead ends: 4812
[2024-11-18 14:55:55,139 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 14:55:55,142 INFO  L432           NwaCegarLoop]: 534 mSDtfsCounter, 177 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:55,143 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1022 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:55:55,148 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4812 states.
[2024-11-18 14:55:55,230 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4810.
[2024-11-18 14:55:55,240 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4810 states, 4809 states have (on average 1.651902682470368) internal successors, (7944), 4809 states have internal predecessors, (7944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:55,261 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 7944 transitions.
[2024-11-18 14:55:55,261 INFO  L78                 Accepts]: Start accepts. Automaton has 4810 states and 7944 transitions. Word has length 120
[2024-11-18 14:55:55,262 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:55:55,262 INFO  L471      AbstractCegarLoop]: Abstraction has 4810 states and 7944 transitions.
[2024-11-18 14:55:55,262 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:55,262 INFO  L276                IsEmpty]: Start isEmpty. Operand 4810 states and 7944 transitions.
[2024-11-18 14:55:55,264 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-11-18 14:55:55,264 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:55,264 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:55:55,264 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-18 14:55:55,264 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:55,265 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:55,265 INFO  L85        PathProgramCache]: Analyzing trace with hash 1139352598, now seen corresponding path program 1 times
[2024-11-18 14:55:55,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:55,265 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578459105]
[2024-11-18 14:55:55,266 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:55,266 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:55,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:55,563 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 14:55:55,563 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:55,563 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578459105]
[2024-11-18 14:55:55,563 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578459105] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:55,564 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:55,564 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:55:55,564 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470474124]
[2024-11-18 14:55:55,564 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:55,564 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:55:55,565 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:55,565 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:55:55,565 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:55:55,566 INFO  L87              Difference]: Start difference. First operand 4810 states and 7944 transitions. Second operand  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:55,936 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:55,937 INFO  L93              Difference]: Finished difference Result 29771 states and 49577 transitions.
[2024-11-18 14:55:55,937 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-18 14:55:55,937 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123
[2024-11-18 14:55:55,938 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:56,035 INFO  L225             Difference]: With dead ends: 29771
[2024-11-18 14:55:56,035 INFO  L226             Difference]: Without dead ends: 25188
[2024-11-18 14:55:56,055 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2024-11-18 14:55:56,057 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 2298 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:56,057 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 3572 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-18 14:55:56,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25188 states.
[2024-11-18 14:55:56,417 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25188 to 9236.
[2024-11-18 14:55:56,437 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9236 states, 9235 states have (on average 1.6472116946399566) internal successors, (15212), 9235 states have internal predecessors, (15212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:56,468 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9236 states to 9236 states and 15212 transitions.
[2024-11-18 14:55:56,468 INFO  L78                 Accepts]: Start accepts. Automaton has 9236 states and 15212 transitions. Word has length 123
[2024-11-18 14:55:56,469 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:55:56,469 INFO  L471      AbstractCegarLoop]: Abstraction has 9236 states and 15212 transitions.
[2024-11-18 14:55:56,469 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:56,469 INFO  L276                IsEmpty]: Start isEmpty. Operand 9236 states and 15212 transitions.
[2024-11-18 14:55:56,470 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-18 14:55:56,470 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:56,471 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 14:55:56,471 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-18 14:55:56,471 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:56,471 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:56,472 INFO  L85        PathProgramCache]: Analyzing trace with hash 893130139, now seen corresponding path program 1 times
[2024-11-18 14:55:56,472 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:56,472 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676187851]
[2024-11-18 14:55:56,472 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:56,472 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:56,511 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:56,753 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 14:55:56,753 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:56,753 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676187851]
[2024-11-18 14:55:56,753 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676187851] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:56,753 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:56,754 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 14:55:56,754 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626113689]
[2024-11-18 14:55:56,754 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:56,754 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 14:55:56,755 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:56,755 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 14:55:56,756 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 14:55:56,756 INFO  L87              Difference]: Start difference. First operand 9236 states and 15212 transitions. Second operand  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:56,998 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:56,999 INFO  L93              Difference]: Finished difference Result 30029 states and 49739 transitions.
[2024-11-18 14:55:57,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 14:55:57,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124
[2024-11-18 14:55:57,001 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:57,046 INFO  L225             Difference]: With dead ends: 30029
[2024-11-18 14:55:57,047 INFO  L226             Difference]: Without dead ends: 21020
[2024-11-18 14:55:57,066 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 14:55:57,067 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 624 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:57,068 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1716 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:55:57,093 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21020 states.
[2024-11-18 14:55:57,376 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21020 to 15091.
[2024-11-18 14:55:57,408 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15091 states, 15090 states have (on average 1.6485089463220677) internal successors, (24876), 15090 states have internal predecessors, (24876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:57,441 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15091 states to 15091 states and 24876 transitions.
[2024-11-18 14:55:57,442 INFO  L78                 Accepts]: Start accepts. Automaton has 15091 states and 24876 transitions. Word has length 124
[2024-11-18 14:55:57,442 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:55:57,442 INFO  L471      AbstractCegarLoop]: Abstraction has 15091 states and 24876 transitions.
[2024-11-18 14:55:57,443 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:57,443 INFO  L276                IsEmpty]: Start isEmpty. Operand 15091 states and 24876 transitions.
[2024-11-18 14:55:57,444 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-18 14:55:57,444 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:57,445 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 14:55:57,445 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-18 14:55:57,445 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:57,445 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:57,446 INFO  L85        PathProgramCache]: Analyzing trace with hash -485089184, now seen corresponding path program 1 times
[2024-11-18 14:55:57,446 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:57,446 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345037492]
[2024-11-18 14:55:57,446 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:57,446 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:57,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:57,557 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 14:55:57,557 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:57,557 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345037492]
[2024-11-18 14:55:57,557 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345037492] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:57,558 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:57,558 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 14:55:57,558 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904290485]
[2024-11-18 14:55:57,561 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:57,562 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 14:55:57,562 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:57,562 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 14:55:57,563 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 14:55:57,563 INFO  L87              Difference]: Start difference. First operand 15091 states and 24876 transitions. Second operand  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:57,805 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:57,806 INFO  L93              Difference]: Finished difference Result 28697 states and 47478 transitions.
[2024-11-18 14:55:57,806 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 14:55:57,807 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 14:55:57,807 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:57,854 INFO  L225             Difference]: With dead ends: 28697
[2024-11-18 14:55:57,855 INFO  L226             Difference]: Without dead ends: 20733
[2024-11-18 14:55:57,873 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 14:55:57,874 INFO  L432           NwaCegarLoop]: 612 mSDtfsCounter, 178 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:57,875 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1103 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:55:57,897 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20733 states.
[2024-11-18 14:55:58,435 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20733 to 20731.
[2024-11-18 14:55:58,494 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20731 states, 20730 states have (on average 1.645875542691751) internal successors, (34119), 20730 states have internal predecessors, (34119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:58,554 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20731 states to 20731 states and 34119 transitions.
[2024-11-18 14:55:58,555 INFO  L78                 Accepts]: Start accepts. Automaton has 20731 states and 34119 transitions. Word has length 124
[2024-11-18 14:55:58,555 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:55:58,555 INFO  L471      AbstractCegarLoop]: Abstraction has 20731 states and 34119 transitions.
[2024-11-18 14:55:58,556 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 14:55:58,556 INFO  L276                IsEmpty]: Start isEmpty. Operand 20731 states and 34119 transitions.
[2024-11-18 14:55:58,557 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-18 14:55:58,557 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:55:58,557 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:55:58,558 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-18 14:55:58,558 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:55:58,558 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:55:58,559 INFO  L85        PathProgramCache]: Analyzing trace with hash 1854726525, now seen corresponding path program 1 times
[2024-11-18 14:55:58,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:55:58,559 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092618889]
[2024-11-18 14:55:58,559 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:55:58,559 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:55:58,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:55:58,730 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 14:55:58,731 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:55:58,731 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092618889]
[2024-11-18 14:55:58,731 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092618889] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:55:58,731 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:55:58,731 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 14:55:58,731 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635139299]
[2024-11-18 14:55:58,732 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:55:58,732 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 14:55:58,732 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:55:58,733 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 14:55:58,733 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 14:55:58,733 INFO  L87              Difference]: Start difference. First operand 20731 states and 34119 transitions. Second operand  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:55:59,217 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:55:59,217 INFO  L93              Difference]: Finished difference Result 67429 states and 111258 transitions.
[2024-11-18 14:55:59,218 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 14:55:59,218 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125
[2024-11-18 14:55:59,218 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:55:59,336 INFO  L225             Difference]: With dead ends: 67429
[2024-11-18 14:55:59,336 INFO  L226             Difference]: Without dead ends: 46943
[2024-11-18 14:55:59,377 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 14:55:59,378 INFO  L432           NwaCegarLoop]: 519 mSDtfsCounter, 622 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-18 14:55:59,378 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1617 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-18 14:55:59,419 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46943 states.
[2024-11-18 14:56:00,078 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46943 to 33748.
[2024-11-18 14:56:00,121 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33748 states, 33747 states have (on average 1.6413014490176905) internal successors, (55389), 33747 states have internal predecessors, (55389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:00,181 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33748 states to 33748 states and 55389 transitions.
[2024-11-18 14:56:00,182 INFO  L78                 Accepts]: Start accepts. Automaton has 33748 states and 55389 transitions. Word has length 125
[2024-11-18 14:56:00,182 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:56:00,182 INFO  L471      AbstractCegarLoop]: Abstraction has 33748 states and 55389 transitions.
[2024-11-18 14:56:00,183 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:00,183 INFO  L276                IsEmpty]: Start isEmpty. Operand 33748 states and 55389 transitions.
[2024-11-18 14:56:00,184 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-11-18 14:56:00,184 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:56:00,184 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:56:00,184 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-18 14:56:00,185 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:56:00,185 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:56:00,185 INFO  L85        PathProgramCache]: Analyzing trace with hash 1604001442, now seen corresponding path program 1 times
[2024-11-18 14:56:00,185 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:56:00,185 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639058096]
[2024-11-18 14:56:00,186 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:56:00,186 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:56:00,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:56:00,472 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 14:56:00,473 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:56:00,473 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639058096]
[2024-11-18 14:56:00,473 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639058096] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:56:00,473 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:56:00,473 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 14:56:00,473 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778423499]
[2024-11-18 14:56:00,474 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:56:00,474 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 14:56:00,476 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:56:00,476 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 14:56:00,476 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 14:56:00,477 INFO  L87              Difference]: Start difference. First operand 33748 states and 55389 transitions. Second operand  has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:01,046 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:56:01,046 INFO  L93              Difference]: Finished difference Result 109323 states and 179874 transitions.
[2024-11-18 14:56:01,047 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 14:56:01,047 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126
[2024-11-18 14:56:01,048 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:56:01,282 INFO  L225             Difference]: With dead ends: 109323
[2024-11-18 14:56:01,283 INFO  L226             Difference]: Without dead ends: 75820
[2024-11-18 14:56:01,330 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 14:56:01,330 INFO  L432           NwaCegarLoop]: 513 mSDtfsCounter, 620 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:56:01,331 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 1658 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:56:01,394 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75820 states.
[2024-11-18 14:56:02,284 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75820 to 54641.
[2024-11-18 14:56:02,347 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54641 states, 54640 states have (on average 1.6366581259150805) internal successors, (89427), 54640 states have internal predecessors, (89427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:02,459 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54641 states to 54641 states and 89427 transitions.
[2024-11-18 14:56:02,460 INFO  L78                 Accepts]: Start accepts. Automaton has 54641 states and 89427 transitions. Word has length 126
[2024-11-18 14:56:02,460 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:56:02,460 INFO  L471      AbstractCegarLoop]: Abstraction has 54641 states and 89427 transitions.
[2024-11-18 14:56:02,460 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:02,461 INFO  L276                IsEmpty]: Start isEmpty. Operand 54641 states and 89427 transitions.
[2024-11-18 14:56:02,462 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-18 14:56:02,462 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:56:02,462 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 14:56:02,462 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-18 14:56:02,462 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:56:02,464 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:56:02,464 INFO  L85        PathProgramCache]: Analyzing trace with hash -1868950812, now seen corresponding path program 1 times
[2024-11-18 14:56:02,465 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:56:02,465 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996106360]
[2024-11-18 14:56:02,465 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:56:02,465 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:56:02,507 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:56:02,856 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 14:56:02,856 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:56:02,856 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996106360]
[2024-11-18 14:56:02,857 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996106360] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:56:02,857 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:56:02,857 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 14:56:02,857 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643685728]
[2024-11-18 14:56:02,857 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:56:02,857 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 14:56:02,857 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:56:02,858 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 14:56:02,858 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 14:56:02,858 INFO  L87              Difference]: Start difference. First operand 54641 states and 89427 transitions. Second operand  has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:03,646 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:56:03,647 INFO  L93              Difference]: Finished difference Result 175049 states and 287186 transitions.
[2024-11-18 14:56:03,647 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 14:56:03,648 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127
[2024-11-18 14:56:03,648 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:56:03,920 INFO  L225             Difference]: With dead ends: 175049
[2024-11-18 14:56:03,920 INFO  L226             Difference]: Without dead ends: 120653
[2024-11-18 14:56:03,985 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 14:56:03,986 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 618 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:56:03,987 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1722 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:56:04,096 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120653 states.
[2024-11-18 14:56:05,364 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120653 to 87422.
[2024-11-18 14:56:05,441 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87422 states, 87421 states have (on average 1.6320220541975041) internal successors, (142673), 87421 states have internal predecessors, (142673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:05,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87422 states to 87422 states and 142673 transitions.
[2024-11-18 14:56:05,574 INFO  L78                 Accepts]: Start accepts. Automaton has 87422 states and 142673 transitions. Word has length 127
[2024-11-18 14:56:05,574 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:56:05,574 INFO  L471      AbstractCegarLoop]: Abstraction has 87422 states and 142673 transitions.
[2024-11-18 14:56:05,574 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:05,574 INFO  L276                IsEmpty]: Start isEmpty. Operand 87422 states and 142673 transitions.
[2024-11-18 14:56:05,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-11-18 14:56:05,576 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:56:05,576 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:56:05,576 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-18 14:56:05,576 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:56:05,576 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:56:05,577 INFO  L85        PathProgramCache]: Analyzing trace with hash 2012261173, now seen corresponding path program 1 times
[2024-11-18 14:56:05,577 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:56:05,577 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648639356]
[2024-11-18 14:56:05,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:56:05,577 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:56:05,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:56:05,959 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 14:56:05,960 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:56:05,960 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648639356]
[2024-11-18 14:56:05,961 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648639356] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:56:05,961 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:56:05,961 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:56:05,961 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624613609]
[2024-11-18 14:56:05,961 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:56:05,962 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:56:05,962 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:56:05,962 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:56:05,962 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:56:05,963 INFO  L87              Difference]: Start difference. First operand 87422 states and 142673 transitions. Second operand  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:06,990 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:56:06,991 INFO  L93              Difference]: Finished difference Result 174601 states and 284955 transitions.
[2024-11-18 14:56:06,991 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 14:56:06,992 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129
[2024-11-18 14:56:06,992 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:56:07,124 INFO  L225             Difference]: With dead ends: 174601
[2024-11-18 14:56:07,124 INFO  L226             Difference]: Without dead ends: 87424
[2024-11-18 14:56:07,196 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2024-11-18 14:56:07,197 INFO  L432           NwaCegarLoop]: 517 mSDtfsCounter, 711 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:56:07,197 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1993 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:56:07,256 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87424 states.
[2024-11-18 14:56:08,522 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87424 to 87422.
[2024-11-18 14:56:08,604 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87422 states, 87421 states have (on average 1.6248727422472862) internal successors, (142048), 87421 states have internal predecessors, (142048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:09,194 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87422 states to 87422 states and 142048 transitions.
[2024-11-18 14:56:09,195 INFO  L78                 Accepts]: Start accepts. Automaton has 87422 states and 142048 transitions. Word has length 129
[2024-11-18 14:56:09,195 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:56:09,195 INFO  L471      AbstractCegarLoop]: Abstraction has 87422 states and 142048 transitions.
[2024-11-18 14:56:09,195 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:09,195 INFO  L276                IsEmpty]: Start isEmpty. Operand 87422 states and 142048 transitions.
[2024-11-18 14:56:09,197 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2024-11-18 14:56:09,197 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:56:09,197 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 14:56:09,197 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-18 14:56:09,197 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:56:09,198 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:56:09,198 INFO  L85        PathProgramCache]: Analyzing trace with hash 365685076, now seen corresponding path program 1 times
[2024-11-18 14:56:09,198 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:56:09,199 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880549011]
[2024-11-18 14:56:09,199 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:56:09,199 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:56:09,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:56:09,518 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 14:56:09,518 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:56:09,518 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880549011]
[2024-11-18 14:56:09,518 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880549011] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:56:09,518 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:56:09,518 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:56:09,519 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043745558]
[2024-11-18 14:56:09,519 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:56:09,519 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:56:09,519 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:56:09,520 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:56:09,520 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:56:09,520 INFO  L87              Difference]: Start difference. First operand 87422 states and 142048 transitions. Second operand  has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:10,701 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:56:10,701 INFO  L93              Difference]: Finished difference Result 255495 states and 415623 transitions.
[2024-11-18 14:56:10,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 14:56:10,712 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132
[2024-11-18 14:56:10,712 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:56:10,975 INFO  L225             Difference]: With dead ends: 255495
[2024-11-18 14:56:10,975 INFO  L226             Difference]: Without dead ends: 168318
[2024-11-18 14:56:11,002 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 14:56:11,003 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 528 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:56:11,003 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 2008 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:56:11,097 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 168318 states.
[2024-11-18 14:56:12,957 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 168318 to 168316.
[2024-11-18 14:56:13,104 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 168316 states, 168315 states have (on average 1.615714582776342) internal successors, (271949), 168315 states have internal predecessors, (271949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:13,482 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 168316 states to 168316 states and 271949 transitions.
[2024-11-18 14:56:13,483 INFO  L78                 Accepts]: Start accepts. Automaton has 168316 states and 271949 transitions. Word has length 132
[2024-11-18 14:56:13,483 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:56:13,483 INFO  L471      AbstractCegarLoop]: Abstraction has 168316 states and 271949 transitions.
[2024-11-18 14:56:13,483 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:13,483 INFO  L276                IsEmpty]: Start isEmpty. Operand 168316 states and 271949 transitions.
[2024-11-18 14:56:13,484 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-18 14:56:13,484 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:56:13,485 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 14:56:13,485 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-18 14:56:13,485 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:56:13,485 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:56:13,486 INFO  L85        PathProgramCache]: Analyzing trace with hash -1550573646, now seen corresponding path program 1 times
[2024-11-18 14:56:13,486 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:56:13,486 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150560750]
[2024-11-18 14:56:13,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:56:13,486 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:56:13,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:56:14,213 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 14:56:14,213 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:56:14,214 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150560750]
[2024-11-18 14:56:14,216 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150560750] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:56:14,216 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:56:14,216 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 14:56:14,216 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074003646]
[2024-11-18 14:56:14,216 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:56:14,217 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 14:56:14,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:56:14,217 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 14:56:14,218 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:56:14,218 INFO  L87              Difference]: Start difference. First operand 168316 states and 271949 transitions. Second operand  has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:15,280 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:56:15,280 INFO  L93              Difference]: Finished difference Result 172190 states and 277758 transitions.
[2024-11-18 14:56:15,281 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 14:56:15,281 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133
[2024-11-18 14:56:15,281 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:56:15,540 INFO  L225             Difference]: With dead ends: 172190
[2024-11-18 14:56:15,540 INFO  L226             Difference]: Without dead ends: 172188
[2024-11-18 14:56:15,590 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:56:15,591 INFO  L432           NwaCegarLoop]: 522 mSDtfsCounter, 0 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:56:15,591 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2070 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:56:15,699 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 172188 states.
[2024-11-18 14:56:17,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 172188 to 172188.
[2024-11-18 14:56:18,015 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 172188 states, 172187 states have (on average 1.6017120920859298) internal successors, (275794), 172187 states have internal predecessors, (275794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:18,341 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 172188 states to 172188 states and 275794 transitions.
[2024-11-18 14:56:18,341 INFO  L78                 Accepts]: Start accepts. Automaton has 172188 states and 275794 transitions. Word has length 133
[2024-11-18 14:56:18,341 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:56:18,341 INFO  L471      AbstractCegarLoop]: Abstraction has 172188 states and 275794 transitions.
[2024-11-18 14:56:18,342 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:18,342 INFO  L276                IsEmpty]: Start isEmpty. Operand 172188 states and 275794 transitions.
[2024-11-18 14:56:18,349 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2024-11-18 14:56:18,349 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:56:18,350 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:56:18,350 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-18 14:56:18,350 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:56:18,350 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:56:18,351 INFO  L85        PathProgramCache]: Analyzing trace with hash -2098432369, now seen corresponding path program 1 times
[2024-11-18 14:56:18,351 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:56:18,351 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434707608]
[2024-11-18 14:56:18,351 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:56:18,351 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:56:18,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:56:18,621 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-18 14:56:18,621 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:56:18,621 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434707608]
[2024-11-18 14:56:18,622 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434707608] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:56:18,622 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:56:18,622 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:56:18,622 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607598562]
[2024-11-18 14:56:18,622 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:56:18,623 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:56:18,623 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:56:18,623 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:56:18,623 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:56:18,624 INFO  L87              Difference]: Start difference. First operand 172188 states and 275794 transitions. Second operand  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:20,783 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:56:20,784 INFO  L93              Difference]: Finished difference Result 469214 states and 754047 transitions.
[2024-11-18 14:56:20,784 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 14:56:20,784 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163
[2024-11-18 14:56:20,785 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:56:21,629 INFO  L225             Difference]: With dead ends: 469214
[2024-11-18 14:56:21,630 INFO  L226             Difference]: Without dead ends: 393562
[2024-11-18 14:56:21,787 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-18 14:56:21,788 INFO  L432           NwaCegarLoop]: 723 mSDtfsCounter, 1388 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:56:21,788 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 2948 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:56:22,059 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 393562 states.
[2024-11-18 14:56:26,903 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 393562 to 276620.
[2024-11-18 14:56:27,301 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 276620 states, 276619 states have (on average 1.6000925460651654) internal successors, (442616), 276619 states have internal predecessors, (442616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:27,953 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 276620 states to 276620 states and 442616 transitions.
[2024-11-18 14:56:27,953 INFO  L78                 Accepts]: Start accepts. Automaton has 276620 states and 442616 transitions. Word has length 163
[2024-11-18 14:56:27,954 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:56:27,954 INFO  L471      AbstractCegarLoop]: Abstraction has 276620 states and 442616 transitions.
[2024-11-18 14:56:27,954 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:27,954 INFO  L276                IsEmpty]: Start isEmpty. Operand 276620 states and 442616 transitions.
[2024-11-18 14:56:27,963 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2024-11-18 14:56:27,963 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:56:27,963 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:56:27,963 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-18 14:56:27,964 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:56:27,964 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:56:27,964 INFO  L85        PathProgramCache]: Analyzing trace with hash -903642171, now seen corresponding path program 1 times
[2024-11-18 14:56:27,964 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:56:27,965 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791895673]
[2024-11-18 14:56:27,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:56:27,965 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:56:28,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:56:28,289 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-18 14:56:28,290 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:56:28,290 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791895673]
[2024-11-18 14:56:28,290 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791895673] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:56:28,290 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:56:28,290 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:56:28,291 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878146682]
[2024-11-18 14:56:28,291 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:56:28,292 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:56:28,292 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:56:28,292 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:56:28,293 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:56:28,293 INFO  L87              Difference]: Start difference. First operand 276620 states and 442616 transitions. Second operand  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:30,565 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:56:30,565 INFO  L93              Difference]: Finished difference Result 517342 states and 831675 transitions.
[2024-11-18 14:56:30,566 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 14:56:30,566 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163
[2024-11-18 14:56:30,567 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:56:31,389 INFO  L225             Difference]: With dead ends: 517342
[2024-11-18 14:56:31,389 INFO  L226             Difference]: Without dead ends: 441690
[2024-11-18 14:56:31,532 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-18 14:56:31,532 INFO  L432           NwaCegarLoop]: 721 mSDtfsCounter, 1327 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:56:31,533 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2649 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:56:31,851 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 441690 states.
[2024-11-18 14:56:36,883 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 441690 to 373886.
[2024-11-18 14:56:37,241 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 373886 states, 373885 states have (on average 1.6012249755940997) internal successors, (598674), 373885 states have internal predecessors, (598674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:38,043 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 373886 states to 373886 states and 598674 transitions.
[2024-11-18 14:56:38,043 INFO  L78                 Accepts]: Start accepts. Automaton has 373886 states and 598674 transitions. Word has length 163
[2024-11-18 14:56:38,043 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:56:38,044 INFO  L471      AbstractCegarLoop]: Abstraction has 373886 states and 598674 transitions.
[2024-11-18 14:56:38,044 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-18 14:56:38,044 INFO  L276                IsEmpty]: Start isEmpty. Operand 373886 states and 598674 transitions.
[2024-11-18 14:56:38,052 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2024-11-18 14:56:38,052 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:56:38,053 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 14:56:38,053 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-18 14:56:38,053 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:56:38,054 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:56:38,054 INFO  L85        PathProgramCache]: Analyzing trace with hash -220690461, now seen corresponding path program 1 times
[2024-11-18 14:56:38,054 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:56:38,054 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135362027]
[2024-11-18 14:56:38,054 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:56:38,055 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:56:39,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:56:39,557 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 14:56:39,558 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:56:39,558 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135362027]
[2024-11-18 14:56:39,558 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135362027] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:56:39,558 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:56:39,558 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:56:39,558 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562036313]
[2024-11-18 14:56:39,559 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:56:39,559 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:56:39,560 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:56:39,561 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:56:39,561 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:56:39,561 INFO  L87              Difference]: Start difference. First operand 373886 states and 598674 transitions. Second operand  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)