./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label04.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version fca748b1
Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label04.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 7526302199d1f3bb6abcb37def785df856d340db371e981c5460527e95177be0
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m
[2024-11-19 18:19:28,146 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-19 18:19:28,224 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-19 18:19:28,231 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-19 18:19:28,231 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-19 18:19:28,262 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-19 18:19:28,265 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-19 18:19:28,265 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-19 18:19:28,266 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-19 18:19:28,267 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-19 18:19:28,268 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-19 18:19:28,269 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-19 18:19:28,269 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-19 18:19:28,270 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-19 18:19:28,271 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-19 18:19:28,272 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-19 18:19:28,272 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-19 18:19:28,272 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-19 18:19:28,273 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-19 18:19:28,273 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-19 18:19:28,273 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-19 18:19:28,276 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-19 18:19:28,277 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-19 18:19:28,277 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-19 18:19:28,277 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-19 18:19:28,277 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-19 18:19:28,278 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-19 18:19:28,278 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-19 18:19:28,278 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-19 18:19:28,279 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-19 18:19:28,279 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-19 18:19:28,279 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-19 18:19:28,279 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 18:19:28,279 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-19 18:19:28,280 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-19 18:19:28,280 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-19 18:19:28,280 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-19 18:19:28,280 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-19 18:19:28,282 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-19 18:19:28,282 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-19 18:19:28,282 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-19 18:19:28,282 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-19 18:19:28,283 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 -> 7526302199d1f3bb6abcb37def785df856d340db371e981c5460527e95177be0
[2024-11-19 18:19:28,554 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-19 18:19:28,578 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-19 18:19:28,582 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-19 18:19:28,583 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-19 18:19:28,584 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-19 18:19:28,585 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label04.c
[2024-11-19 18:19:30,107 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-19 18:19:30,438 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-19 18:19:30,440 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label04.c
[2024-11-19 18:19:30,469 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/062743c6d/50950cfb63a64b618e4077b0b6719b62/FLAGbc8226684
[2024-11-19 18:19:30,667 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/062743c6d/50950cfb63a64b618e4077b0b6719b62
[2024-11-19 18:19:30,670 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-19 18:19:30,671 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-19 18:19:30,673 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-19 18:19:30,673 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-19 18:19:30,680 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-19 18:19:30,681 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:19:30" (1/1) ...
[2024-11-19 18:19:30,682 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777693db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:30, skipping insertion in model container
[2024-11-19 18:19:30,683 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:19:30" (1/1) ...
[2024-11-19 18:19:30,747 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-19 18:19:31,003 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label04.c[3915,3928]
[2024-11-19 18:19:31,441 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 18:19:31,452 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-19 18:19:31,479 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label04.c[3915,3928]
[2024-11-19 18:19:31,651 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 18:19:31,673 INFO  L204         MainTranslator]: Completed translation
[2024-11-19 18:19:31,674 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31 WrapperNode
[2024-11-19 18:19:31,674 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-19 18:19:31,675 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-19 18:19:31,675 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-19 18:19:31,676 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-19 18:19:31,682 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:31,719 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:31,937 INFO  L138                Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760
[2024-11-19 18:19:31,938 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-19 18:19:31,938 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-19 18:19:31,938 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-19 18:19:31,939 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-19 18:19:31,949 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:31,950 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:31,980 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:32,123 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].
[2024-11-19 18:19:32,123 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:32,124 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:32,210 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:32,229 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:32,272 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:32,286 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:32,329 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-19 18:19:32,330 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-19 18:19:32,331 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-19 18:19:32,331 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-19 18:19:32,332 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (1/1) ...
[2024-11-19 18:19:32,338 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 18:19:32,350 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:19:32,367 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)
[2024-11-19 18:19:32,370 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
[2024-11-19 18:19:32,411 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-19 18:19:32,411 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-19 18:19:32,411 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-19 18:19:32,411 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-19 18:19:32,466 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-19 18:19:32,468 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-19 18:19:34,849 INFO  L?                        ?]: Removed 246 outVars from TransFormulas that were not future-live.
[2024-11-19 18:19:34,849 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-19 18:19:34,878 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-19 18:19:34,882 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-19 18:19:34,883 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:19:34 BoogieIcfgContainer
[2024-11-19 18:19:34,883 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-19 18:19:34,885 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-19 18:19:34,886 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-19 18:19:34,890 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-19 18:19:34,890 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:19:30" (1/3) ...
[2024-11-19 18:19:34,891 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec4d40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:19:34, skipping insertion in model container
[2024-11-19 18:19:34,891 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:19:31" (2/3) ...
[2024-11-19 18:19:34,892 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec4d40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:19:34, skipping insertion in model container
[2024-11-19 18:19:34,892 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:19:34" (3/3) ...
[2024-11-19 18:19:34,893 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem15_label04.c
[2024-11-19 18:19:34,910 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-19 18:19:34,911 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-19 18:19:34,996 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-19 18:19:35,005 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;@29e73eaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-19 18:19:35,006 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-19 18:19:35,012 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:35,020 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-19 18:19:35,021 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:35,022 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:35,023 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:35,029 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:35,030 INFO  L85        PathProgramCache]: Analyzing trace with hash -1843609039, now seen corresponding path program 1 times
[2024-11-19 18:19:35,039 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:35,040 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692971205]
[2024-11-19 18:19:35,040 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:35,041 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:35,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:35,387 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:19:35,387 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:35,388 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692971205]
[2024-11-19 18:19:35,388 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692971205] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:35,389 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:35,389 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:19:35,391 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887040252]
[2024-11-19 18:19:35,392 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:35,397 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:35,398 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:35,426 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:35,427 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:35,431 INFO  L87              Difference]: Start difference. First operand  has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 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 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:37,225 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:37,225 INFO  L93              Difference]: Finished difference Result 1155 states and 2106 transitions.
[2024-11-19 18:19:37,226 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:37,228 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31
[2024-11-19 18:19:37,228 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:37,242 INFO  L225             Difference]: With dead ends: 1155
[2024-11-19 18:19:37,242 INFO  L226             Difference]: Without dead ends: 667
[2024-11-19 18:19:37,247 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:37,250 INFO  L432           NwaCegarLoop]: 329 mSDtfsCounter, 313 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:37,251 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 371 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-19 18:19:37,270 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 667 states.
[2024-11-19 18:19:37,322 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 665.
[2024-11-19 18:19:37,325 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 665 states, 664 states have (on average 1.4789156626506024) internal successors, (982), 664 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:37,330 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 982 transitions.
[2024-11-19 18:19:37,331 INFO  L78                 Accepts]: Start accepts. Automaton has 665 states and 982 transitions. Word has length 31
[2024-11-19 18:19:37,332 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:37,332 INFO  L471      AbstractCegarLoop]: Abstraction has 665 states and 982 transitions.
[2024-11-19 18:19:37,332 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:37,333 INFO  L276                IsEmpty]: Start isEmpty. Operand 665 states and 982 transitions.
[2024-11-19 18:19:37,336 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2024-11-19 18:19:37,337 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:37,337 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:37,338 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-19 18:19:37,338 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:37,339 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:37,339 INFO  L85        PathProgramCache]: Analyzing trace with hash -2056552649, now seen corresponding path program 1 times
[2024-11-19 18:19:37,339 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:37,339 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107724372]
[2024-11-19 18:19:37,339 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:37,339 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:37,398 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:37,573 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:19:37,574 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:37,574 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107724372]
[2024-11-19 18:19:37,574 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107724372] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:37,574 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:37,574 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:19:37,574 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733563590]
[2024-11-19 18:19:37,575 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:37,576 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:37,576 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:37,577 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:37,577 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:37,578 INFO  L87              Difference]: Start difference. First operand 665 states and 982 transitions. Second operand  has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:39,557 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:39,558 INFO  L93              Difference]: Finished difference Result 1955 states and 2894 transitions.
[2024-11-19 18:19:39,559 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:39,559 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 106
[2024-11-19 18:19:39,560 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:39,565 INFO  L225             Difference]: With dead ends: 1955
[2024-11-19 18:19:39,565 INFO  L226             Difference]: Without dead ends: 1292
[2024-11-19 18:19:39,567 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:39,568 INFO  L432           NwaCegarLoop]: 289 mSDtfsCounter, 258 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:39,569 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 327 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-11-19 18:19:39,571 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1292 states.
[2024-11-19 18:19:39,606 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1282.
[2024-11-19 18:19:39,608 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1282 states, 1281 states have (on average 1.3989071038251366) internal successors, (1792), 1281 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:39,612 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1792 transitions.
[2024-11-19 18:19:39,612 INFO  L78                 Accepts]: Start accepts. Automaton has 1282 states and 1792 transitions. Word has length 106
[2024-11-19 18:19:39,612 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:39,613 INFO  L471      AbstractCegarLoop]: Abstraction has 1282 states and 1792 transitions.
[2024-11-19 18:19:39,613 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:39,613 INFO  L276                IsEmpty]: Start isEmpty. Operand 1282 states and 1792 transitions.
[2024-11-19 18:19:39,616 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2024-11-19 18:19:39,616 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:39,616 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:39,617 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-19 18:19:39,617 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:39,618 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:39,618 INFO  L85        PathProgramCache]: Analyzing trace with hash -25567935, now seen corresponding path program 1 times
[2024-11-19 18:19:39,618 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:39,618 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989051140]
[2024-11-19 18:19:39,618 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:39,619 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:39,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:39,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:19:39,831 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:39,831 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989051140]
[2024-11-19 18:19:39,831 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989051140] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:39,832 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:39,832 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:19:39,832 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912036228]
[2024-11-19 18:19:39,832 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:39,833 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:39,833 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:39,834 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:39,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:39,834 INFO  L87              Difference]: Start difference. First operand 1282 states and 1792 transitions. Second operand  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:41,540 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:41,541 INFO  L93              Difference]: Finished difference Result 3764 states and 5263 transitions.
[2024-11-19 18:19:41,541 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:41,541 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110
[2024-11-19 18:19:41,542 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:41,552 INFO  L225             Difference]: With dead ends: 3764
[2024-11-19 18:19:41,553 INFO  L226             Difference]: Without dead ends: 2484
[2024-11-19 18:19:41,555 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:41,557 INFO  L432           NwaCegarLoop]: 320 mSDtfsCounter, 236 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:41,558 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 366 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-19 18:19:41,564 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2484 states.
[2024-11-19 18:19:41,588 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 2182.
[2024-11-19 18:19:41,591 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2182 states, 2181 states have (on average 1.2815222375057314) internal successors, (2795), 2181 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:41,597 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2795 transitions.
[2024-11-19 18:19:41,598 INFO  L78                 Accepts]: Start accepts. Automaton has 2182 states and 2795 transitions. Word has length 110
[2024-11-19 18:19:41,598 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:41,598 INFO  L471      AbstractCegarLoop]: Abstraction has 2182 states and 2795 transitions.
[2024-11-19 18:19:41,599 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:41,602 INFO  L276                IsEmpty]: Start isEmpty. Operand 2182 states and 2795 transitions.
[2024-11-19 18:19:41,605 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 202
[2024-11-19 18:19:41,605 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:41,605 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:41,606 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-19 18:19:41,606 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:41,606 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:41,607 INFO  L85        PathProgramCache]: Analyzing trace with hash -257680628, now seen corresponding path program 1 times
[2024-11-19 18:19:41,607 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:41,607 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625417143]
[2024-11-19 18:19:41,607 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:41,608 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:41,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:41,889 INFO  L134       CoverageAnalysis]: Checked inductivity of 135 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked.
[2024-11-19 18:19:41,891 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:41,891 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625417143]
[2024-11-19 18:19:41,892 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625417143] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:41,892 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:41,892 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:19:41,892 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266359965]
[2024-11-19 18:19:41,892 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:41,893 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:41,893 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:41,893 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:41,895 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:41,896 INFO  L87              Difference]: Start difference. First operand 2182 states and 2795 transitions. Second operand  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 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)
[2024-11-19 18:19:43,348 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:43,349 INFO  L93              Difference]: Finished difference Result 6166 states and 7961 transitions.
[2024-11-19 18:19:43,349 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:43,350 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 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 201
[2024-11-19 18:19:43,350 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:43,364 INFO  L225             Difference]: With dead ends: 6166
[2024-11-19 18:19:43,365 INFO  L226             Difference]: Without dead ends: 3986
[2024-11-19 18:19:43,369 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:43,370 INFO  L432           NwaCegarLoop]: 272 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:43,370 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 339 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-19 18:19:43,375 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3986 states.
[2024-11-19 18:19:43,443 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3682.
[2024-11-19 18:19:43,450 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3682 states, 3681 states have (on average 1.2200488997555012) internal successors, (4491), 3681 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:43,460 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 4491 transitions.
[2024-11-19 18:19:43,460 INFO  L78                 Accepts]: Start accepts. Automaton has 3682 states and 4491 transitions. Word has length 201
[2024-11-19 18:19:43,461 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:43,462 INFO  L471      AbstractCegarLoop]: Abstraction has 3682 states and 4491 transitions.
[2024-11-19 18:19:43,462 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 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)
[2024-11-19 18:19:43,462 INFO  L276                IsEmpty]: Start isEmpty. Operand 3682 states and 4491 transitions.
[2024-11-19 18:19:43,467 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-19 18:19:43,467 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:43,468 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:43,468 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-19 18:19:43,469 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:43,469 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:43,470 INFO  L85        PathProgramCache]: Analyzing trace with hash 593446436, now seen corresponding path program 1 times
[2024-11-19 18:19:43,470 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:43,470 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494183838]
[2024-11-19 18:19:43,470 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:43,470 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:43,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:44,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked.
[2024-11-19 18:19:44,160 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:44,160 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494183838]
[2024-11-19 18:19:44,160 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494183838] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:44,160 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:44,160 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:19:44,160 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972329427]
[2024-11-19 18:19:44,161 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:44,162 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:44,162 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:44,163 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:44,163 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:44,164 INFO  L87              Difference]: Start difference. First operand 3682 states and 4491 transitions. Second operand  has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:45,456 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:45,456 INFO  L93              Difference]: Finished difference Result 7661 states and 9291 transitions.
[2024-11-19 18:19:45,456 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:45,457 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 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 303
[2024-11-19 18:19:45,457 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:45,471 INFO  L225             Difference]: With dead ends: 7661
[2024-11-19 18:19:45,471 INFO  L226             Difference]: Without dead ends: 3981
[2024-11-19 18:19:45,476 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:45,479 INFO  L432           NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:45,479 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-19 18:19:45,484 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3981 states.
[2024-11-19 18:19:45,532 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3981 to 3981.
[2024-11-19 18:19:45,538 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3981 states, 3980 states have (on average 1.2050251256281408) internal successors, (4796), 3980 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:45,546 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3981 states to 3981 states and 4796 transitions.
[2024-11-19 18:19:45,547 INFO  L78                 Accepts]: Start accepts. Automaton has 3981 states and 4796 transitions. Word has length 303
[2024-11-19 18:19:45,547 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:45,547 INFO  L471      AbstractCegarLoop]: Abstraction has 3981 states and 4796 transitions.
[2024-11-19 18:19:45,548 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:45,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 3981 states and 4796 transitions.
[2024-11-19 18:19:45,551 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 319
[2024-11-19 18:19:45,551 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:45,552 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-19 18:19:45,552 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-19 18:19:45,552 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:45,552 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:45,553 INFO  L85        PathProgramCache]: Analyzing trace with hash -1446697707, now seen corresponding path program 1 times
[2024-11-19 18:19:45,553 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:45,553 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325122931]
[2024-11-19 18:19:45,553 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:45,553 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:45,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:45,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 147 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked.
[2024-11-19 18:19:45,901 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:45,901 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325122931]
[2024-11-19 18:19:45,902 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325122931] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:45,902 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:45,902 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:19:45,902 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371261740]
[2024-11-19 18:19:45,902 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:45,903 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:45,903 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:45,904 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:45,904 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:45,904 INFO  L87              Difference]: Start difference. First operand 3981 states and 4796 transitions. Second operand  has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:47,410 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:47,411 INFO  L93              Difference]: Finished difference Result 9465 states and 11674 transitions.
[2024-11-19 18:19:47,411 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:47,412 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 318
[2024-11-19 18:19:47,412 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:47,433 INFO  L225             Difference]: With dead ends: 9465
[2024-11-19 18:19:47,434 INFO  L226             Difference]: Without dead ends: 5785
[2024-11-19 18:19:47,440 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
[2024-11-19 18:19:47,442 INFO  L432           NwaCegarLoop]: 632 mSDtfsCounter, 285 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:47,443 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 671 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-19 18:19:47,451 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5785 states.
[2024-11-19 18:19:47,519 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5785 to 5783.
[2024-11-19 18:19:47,528 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5783 states, 5782 states have (on average 1.1675890695261155) internal successors, (6751), 5782 states have internal predecessors, (6751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:47,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5783 states to 5783 states and 6751 transitions.
[2024-11-19 18:19:47,584 INFO  L78                 Accepts]: Start accepts. Automaton has 5783 states and 6751 transitions. Word has length 318
[2024-11-19 18:19:47,585 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:47,585 INFO  L471      AbstractCegarLoop]: Abstraction has 5783 states and 6751 transitions.
[2024-11-19 18:19:47,585 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:47,586 INFO  L276                IsEmpty]: Start isEmpty. Operand 5783 states and 6751 transitions.
[2024-11-19 18:19:47,591 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 378
[2024-11-19 18:19:47,591 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:47,592 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:47,592 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-19 18:19:47,592 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:47,593 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:47,594 INFO  L85        PathProgramCache]: Analyzing trace with hash 958857170, now seen corresponding path program 1 times
[2024-11-19 18:19:47,594 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:47,594 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748602065]
[2024-11-19 18:19:47,594 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:47,594 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:47,680 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:47,921 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked.
[2024-11-19 18:19:47,922 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:47,922 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748602065]
[2024-11-19 18:19:47,922 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748602065] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:47,922 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:47,922 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:19:47,923 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910756615]
[2024-11-19 18:19:47,923 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:47,924 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:47,924 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:47,925 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:47,925 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:47,925 INFO  L87              Difference]: Start difference. First operand 5783 states and 6751 transitions. Second operand  has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:49,429 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:49,429 INFO  L93              Difference]: Finished difference Result 13364 states and 15910 transitions.
[2024-11-19 18:19:49,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:49,430 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 377
[2024-11-19 18:19:49,431 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:49,456 INFO  L225             Difference]: With dead ends: 13364
[2024-11-19 18:19:49,456 INFO  L226             Difference]: Without dead ends: 7882
[2024-11-19 18:19:49,463 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
[2024-11-19 18:19:49,464 INFO  L432           NwaCegarLoop]: 598 mSDtfsCounter, 296 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:49,465 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 635 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-19 18:19:49,472 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7882 states.
[2024-11-19 18:19:49,572 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7882 to 7284.
[2024-11-19 18:19:49,583 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7284 states, 7283 states have (on average 1.148702457778388) internal successors, (8366), 7283 states have internal predecessors, (8366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:49,595 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7284 states to 7284 states and 8366 transitions.
[2024-11-19 18:19:49,596 INFO  L78                 Accepts]: Start accepts. Automaton has 7284 states and 8366 transitions. Word has length 377
[2024-11-19 18:19:49,597 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:49,597 INFO  L471      AbstractCegarLoop]: Abstraction has 7284 states and 8366 transitions.
[2024-11-19 18:19:49,597 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:49,597 INFO  L276                IsEmpty]: Start isEmpty. Operand 7284 states and 8366 transitions.
[2024-11-19 18:19:49,603 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 393
[2024-11-19 18:19:49,603 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:49,604 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:49,604 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-19 18:19:49,604 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:49,604 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:49,605 INFO  L85        PathProgramCache]: Analyzing trace with hash -160324221, now seen corresponding path program 1 times
[2024-11-19 18:19:49,605 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:49,605 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018043092]
[2024-11-19 18:19:49,605 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:49,605 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:49,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:49,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 147 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked.
[2024-11-19 18:19:49,849 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:49,849 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018043092]
[2024-11-19 18:19:49,849 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018043092] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:49,849 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:49,849 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:19:49,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536363157]
[2024-11-19 18:19:49,849 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:49,850 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:49,850 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:49,850 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:49,850 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:49,851 INFO  L87              Difference]: Start difference. First operand 7284 states and 8366 transitions. Second operand  has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:51,224 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:51,225 INFO  L93              Difference]: Finished difference Result 16958 states and 19732 transitions.
[2024-11-19 18:19:51,226 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:51,226 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 392
[2024-11-19 18:19:51,227 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:51,273 INFO  L225             Difference]: With dead ends: 16958
[2024-11-19 18:19:51,274 INFO  L226             Difference]: Without dead ends: 9975
[2024-11-19 18:19:51,283 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
[2024-11-19 18:19:51,285 INFO  L432           NwaCegarLoop]: 276 mSDtfsCounter, 283 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:51,285 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 320 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-19 18:19:51,291 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9975 states.
[2024-11-19 18:19:51,364 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9975 to 6680.
[2024-11-19 18:19:51,375 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6680 states, 6679 states have (on average 1.1573588860607875) internal successors, (7730), 6679 states have internal predecessors, (7730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:51,386 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 7730 transitions.
[2024-11-19 18:19:51,387 INFO  L78                 Accepts]: Start accepts. Automaton has 6680 states and 7730 transitions. Word has length 392
[2024-11-19 18:19:51,387 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:51,388 INFO  L471      AbstractCegarLoop]: Abstraction has 6680 states and 7730 transitions.
[2024-11-19 18:19:51,388 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:51,388 INFO  L276                IsEmpty]: Start isEmpty. Operand 6680 states and 7730 transitions.
[2024-11-19 18:19:51,394 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 395
[2024-11-19 18:19:51,394 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:51,394 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:51,395 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-19 18:19:51,395 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:51,395 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:51,395 INFO  L85        PathProgramCache]: Analyzing trace with hash 16466699, now seen corresponding path program 1 times
[2024-11-19 18:19:51,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:51,396 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253970353]
[2024-11-19 18:19:51,396 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:51,396 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:51,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:51,708 INFO  L134       CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:19:51,708 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:51,708 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253970353]
[2024-11-19 18:19:51,709 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253970353] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:51,709 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:51,709 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:19:51,709 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974633463]
[2024-11-19 18:19:51,709 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:51,710 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:51,710 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:51,711 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:51,712 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:51,712 INFO  L87              Difference]: Start difference. First operand 6680 states and 7730 transitions. Second operand  has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:53,064 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:53,064 INFO  L93              Difference]: Finished difference Result 14859 states and 17538 transitions.
[2024-11-19 18:19:53,065 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:53,066 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 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 394
[2024-11-19 18:19:53,066 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:53,078 INFO  L225             Difference]: With dead ends: 14859
[2024-11-19 18:19:53,078 INFO  L226             Difference]: Without dead ends: 8480
[2024-11-19 18:19:53,084 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
[2024-11-19 18:19:53,084 INFO  L432           NwaCegarLoop]: 584 mSDtfsCounter, 248 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:53,085 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 621 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-19 18:19:53,091 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8480 states.
[2024-11-19 18:19:53,164 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8480 to 7877.
[2024-11-19 18:19:53,175 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7877 states, 7876 states have (on average 1.1448704926358557) internal successors, (9017), 7876 states have internal predecessors, (9017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:53,189 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7877 states to 7877 states and 9017 transitions.
[2024-11-19 18:19:53,190 INFO  L78                 Accepts]: Start accepts. Automaton has 7877 states and 9017 transitions. Word has length 394
[2024-11-19 18:19:53,190 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:53,191 INFO  L471      AbstractCegarLoop]: Abstraction has 7877 states and 9017 transitions.
[2024-11-19 18:19:53,191 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:53,191 INFO  L276                IsEmpty]: Start isEmpty. Operand 7877 states and 9017 transitions.
[2024-11-19 18:19:53,195 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 496
[2024-11-19 18:19:53,195 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:53,196 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:53,196 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-19 18:19:53,196 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:53,197 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:53,197 INFO  L85        PathProgramCache]: Analyzing trace with hash -204355091, now seen corresponding path program 1 times
[2024-11-19 18:19:53,197 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:53,197 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712067590]
[2024-11-19 18:19:53,197 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:53,197 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:53,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:53,478 INFO  L134       CoverageAnalysis]: Checked inductivity of 361 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked.
[2024-11-19 18:19:53,479 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:53,479 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712067590]
[2024-11-19 18:19:53,479 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712067590] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:53,479 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:53,479 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:19:53,480 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954907620]
[2024-11-19 18:19:53,480 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:53,480 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:53,480 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:53,481 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:53,483 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:53,484 INFO  L87              Difference]: Start difference. First operand 7877 states and 9017 transitions. Second operand  has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:54,712 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:54,713 INFO  L93              Difference]: Finished difference Result 17844 states and 20684 transitions.
[2024-11-19 18:19:54,713 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:54,714 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 495
[2024-11-19 18:19:54,715 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:54,732 INFO  L225             Difference]: With dead ends: 17844
[2024-11-19 18:19:54,732 INFO  L226             Difference]: Without dead ends: 10268
[2024-11-19 18:19:54,740 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
[2024-11-19 18:19:54,741 INFO  L432           NwaCegarLoop]: 427 mSDtfsCounter, 384 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:54,742 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 447 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-19 18:19:54,750 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10268 states.
[2024-11-19 18:19:54,842 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10268 to 10268.
[2024-11-19 18:19:54,854 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10268 states, 10267 states have (on average 1.1469757475406643) internal successors, (11776), 10267 states have internal predecessors, (11776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:54,870 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10268 states to 10268 states and 11776 transitions.
[2024-11-19 18:19:54,870 INFO  L78                 Accepts]: Start accepts. Automaton has 10268 states and 11776 transitions. Word has length 495
[2024-11-19 18:19:54,871 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:54,871 INFO  L471      AbstractCegarLoop]: Abstraction has 10268 states and 11776 transitions.
[2024-11-19 18:19:54,871 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:54,871 INFO  L276                IsEmpty]: Start isEmpty. Operand 10268 states and 11776 transitions.
[2024-11-19 18:19:54,876 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 520
[2024-11-19 18:19:54,876 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:54,877 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:54,877 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-19 18:19:54,877 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:54,878 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:54,878 INFO  L85        PathProgramCache]: Analyzing trace with hash 1423531700, now seen corresponding path program 1 times
[2024-11-19 18:19:54,878 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:54,879 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55960666]
[2024-11-19 18:19:54,879 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:54,879 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:54,977 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:55,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 651 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked.
[2024-11-19 18:19:55,552 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:55,552 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55960666]
[2024-11-19 18:19:55,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55960666] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:19:55,553 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:19:55,553 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:19:55,553 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891922354]
[2024-11-19 18:19:55,553 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:19:55,553 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:19:55,554 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:55,555 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:19:55,555 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:19:55,555 INFO  L87              Difference]: Start difference. First operand 10268 states and 11776 transitions. Second operand  has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:56,964 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:19:56,964 INFO  L93              Difference]: Finished difference Result 25033 states and 28940 transitions.
[2024-11-19 18:19:56,964 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:19:56,965 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 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 519
[2024-11-19 18:19:56,965 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:19:56,994 INFO  L225             Difference]: With dead ends: 25033
[2024-11-19 18:19:56,994 INFO  L226             Difference]: Without dead ends: 15066
[2024-11-19 18:19:57,006 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
[2024-11-19 18:19:57,008 INFO  L432           NwaCegarLoop]: 588 mSDtfsCounter, 246 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-19 18:19:57,008 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 621 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-19 18:19:57,022 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15066 states.
[2024-11-19 18:19:57,245 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15066 to 14457.
[2024-11-19 18:19:57,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14457 states, 14456 states have (on average 1.1329551743220807) internal successors, (16378), 14456 states have internal predecessors, (16378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:57,280 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14457 states to 14457 states and 16378 transitions.
[2024-11-19 18:19:57,280 INFO  L78                 Accepts]: Start accepts. Automaton has 14457 states and 16378 transitions. Word has length 519
[2024-11-19 18:19:57,281 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:19:57,281 INFO  L471      AbstractCegarLoop]: Abstraction has 14457 states and 16378 transitions.
[2024-11-19 18:19:57,282 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:19:57,282 INFO  L276                IsEmpty]: Start isEmpty. Operand 14457 states and 16378 transitions.
[2024-11-19 18:19:57,290 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 587
[2024-11-19 18:19:57,291 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:19:57,291 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:19:57,291 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-19 18:19:57,291 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:19:57,292 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:19:57,292 INFO  L85        PathProgramCache]: Analyzing trace with hash -1199657310, now seen corresponding path program 1 times
[2024-11-19 18:19:57,292 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:19:57,292 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431050841]
[2024-11-19 18:19:57,293 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:57,293 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:19:57,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:58,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 771 backedges. 554 proven. 39 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked.
[2024-11-19 18:19:58,002 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:19:58,002 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431050841]
[2024-11-19 18:19:58,002 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431050841] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:19:58,002 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393857566]
[2024-11-19 18:19:58,003 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:19:58,003 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:19:58,003 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:19:58,006 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:19:58,007 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-19 18:19:58,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:19:58,228 INFO  L255         TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-19 18:19:58,251 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:19:59,084 INFO  L134       CoverageAnalysis]: Checked inductivity of 771 backedges. 554 proven. 39 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked.
[2024-11-19 18:19:59,085 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-19 18:19:59,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 771 backedges. 554 proven. 39 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked.
[2024-11-19 18:19:59,829 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393857566] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-19 18:19:59,829 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-19 18:19:59,829 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8
[2024-11-19 18:19:59,830 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507690044]
[2024-11-19 18:19:59,830 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-19 18:19:59,831 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-19 18:19:59,831 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:19:59,832 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-19 18:19:59,832 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-19 18:19:59,832 INFO  L87              Difference]: Start difference. First operand 14457 states and 16378 transitions. Second operand  has 9 states, 9 states have (on average 80.77777777777777) internal successors, (727), 8 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:05,123 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:05,123 INFO  L93              Difference]: Finished difference Result 36947 states and 41592 transitions.
[2024-11-19 18:20:05,124 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-19 18:20:05,124 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 80.77777777777777) internal successors, (727), 8 states have internal predecessors, (727), 0 states have call successors, (0), 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 586
[2024-11-19 18:20:05,125 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:05,153 INFO  L225             Difference]: With dead ends: 36947
[2024-11-19 18:20:05,154 INFO  L226             Difference]: Without dead ends: 17149
[2024-11-19 18:20:05,168 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1181 GetRequests, 1167 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240
[2024-11-19 18:20:05,168 INFO  L432           NwaCegarLoop]: 104 mSDtfsCounter, 3100 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 5492 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3100 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 6185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 5492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:05,169 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3100 Valid, 270 Invalid, 6185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 5492 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2024-11-19 18:20:05,181 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17149 states.
[2024-11-19 18:20:05,336 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17149 to 12661.
[2024-11-19 18:20:05,346 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12661 states, 12660 states have (on average 1.0695102685624012) internal successors, (13540), 12660 states have internal predecessors, (13540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:05,360 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12661 states to 12661 states and 13540 transitions.
[2024-11-19 18:20:05,361 INFO  L78                 Accepts]: Start accepts. Automaton has 12661 states and 13540 transitions. Word has length 586
[2024-11-19 18:20:05,361 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:05,361 INFO  L471      AbstractCegarLoop]: Abstraction has 12661 states and 13540 transitions.
[2024-11-19 18:20:05,362 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 80.77777777777777) internal successors, (727), 8 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:05,362 INFO  L276                IsEmpty]: Start isEmpty. Operand 12661 states and 13540 transitions.
[2024-11-19 18:20:05,368 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 612
[2024-11-19 18:20:05,368 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:05,370 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:05,382 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-19 18:20:05,571 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2024-11-19 18:20:05,571 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:05,572 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:05,572 INFO  L85        PathProgramCache]: Analyzing trace with hash -1419630877, now seen corresponding path program 1 times
[2024-11-19 18:20:05,572 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:05,572 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75128982]
[2024-11-19 18:20:05,572 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:05,572 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:05,681 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:05,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 685 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked.
[2024-11-19 18:20:05,932 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:05,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75128982]
[2024-11-19 18:20:05,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75128982] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:05,932 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:05,932 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:20:05,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685231893]
[2024-11-19 18:20:05,933 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:05,933 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:20:05,934 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:05,935 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:20:05,935 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:20:05,935 INFO  L87              Difference]: Start difference. First operand 12661 states and 13540 transitions. Second operand  has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:06,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:06,832 INFO  L93              Difference]: Finished difference Result 25318 states and 27088 transitions.
[2024-11-19 18:20:06,832 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:20:06,833 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 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 611
[2024-11-19 18:20:06,833 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:06,854 INFO  L225             Difference]: With dead ends: 25318
[2024-11-19 18:20:06,854 INFO  L226             Difference]: Without dead ends: 12958
[2024-11-19 18:20:06,861 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
[2024-11-19 18:20:06,862 INFO  L432           NwaCegarLoop]: 64 mSDtfsCounter, 437 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:06,862 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 69 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-19 18:20:06,872 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12958 states.
[2024-11-19 18:20:06,976 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12958 to 12659.
[2024-11-19 18:20:06,987 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12659 states, 12658 states have (on average 1.0693632485384736) internal successors, (13536), 12658 states have internal predecessors, (13536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:07,002 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12659 states to 12659 states and 13536 transitions.
[2024-11-19 18:20:07,003 INFO  L78                 Accepts]: Start accepts. Automaton has 12659 states and 13536 transitions. Word has length 611
[2024-11-19 18:20:07,003 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:07,003 INFO  L471      AbstractCegarLoop]: Abstraction has 12659 states and 13536 transitions.
[2024-11-19 18:20:07,003 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:07,004 INFO  L276                IsEmpty]: Start isEmpty. Operand 12659 states and 13536 transitions.
[2024-11-19 18:20:07,010 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 633
[2024-11-19 18:20:07,010 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:07,011 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:07,011 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-19 18:20:07,011 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:07,012 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:07,012 INFO  L85        PathProgramCache]: Analyzing trace with hash 285685428, now seen corresponding path program 1 times
[2024-11-19 18:20:07,012 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:07,012 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107971097]
[2024-11-19 18:20:07,012 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:07,012 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:07,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:07,877 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked.
[2024-11-19 18:20:07,878 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:07,878 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107971097]
[2024-11-19 18:20:07,878 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107971097] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:07,878 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:07,878 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:20:07,878 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693434465]
[2024-11-19 18:20:07,878 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:07,880 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:20:07,880 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:07,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:20:07,881 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:20:07,881 INFO  L87              Difference]: Start difference. First operand 12659 states and 13536 transitions. Second operand  has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:08,682 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:08,682 INFO  L93              Difference]: Finished difference Result 25322 states and 27077 transitions.
[2024-11-19 18:20:08,683 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:20:08,683 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 632
[2024-11-19 18:20:08,684 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:08,701 INFO  L225             Difference]: With dead ends: 25322
[2024-11-19 18:20:08,702 INFO  L226             Difference]: Without dead ends: 12665
[2024-11-19 18:20:08,711 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:20:08,712 INFO  L432           NwaCegarLoop]: 122 mSDtfsCounter, 344 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:08,712 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 140 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-19 18:20:08,720 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12665 states.
[2024-11-19 18:20:08,810 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12665 to 12061.
[2024-11-19 18:20:08,820 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12061 states, 12060 states have (on average 1.055721393034826) internal successors, (12732), 12060 states have internal predecessors, (12732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:08,833 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12061 states to 12061 states and 12732 transitions.
[2024-11-19 18:20:08,834 INFO  L78                 Accepts]: Start accepts. Automaton has 12061 states and 12732 transitions. Word has length 632
[2024-11-19 18:20:08,835 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:08,835 INFO  L471      AbstractCegarLoop]: Abstraction has 12061 states and 12732 transitions.
[2024-11-19 18:20:08,835 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:08,835 INFO  L276                IsEmpty]: Start isEmpty. Operand 12061 states and 12732 transitions.
[2024-11-19 18:20:08,843 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 657
[2024-11-19 18:20:08,844 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:08,844 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:08,844 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-19 18:20:08,845 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:08,846 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:08,846 INFO  L85        PathProgramCache]: Analyzing trace with hash -1737174082, now seen corresponding path program 1 times
[2024-11-19 18:20:08,846 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:08,846 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939380838]
[2024-11-19 18:20:08,846 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:08,847 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:09,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:09,334 INFO  L134       CoverageAnalysis]: Checked inductivity of 546 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked.
[2024-11-19 18:20:09,334 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:09,334 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939380838]
[2024-11-19 18:20:09,334 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939380838] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:09,335 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:09,335 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:20:09,335 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336910963]
[2024-11-19 18:20:09,335 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:09,338 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:20:09,338 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:09,338 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:20:09,339 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:20:09,339 INFO  L87              Difference]: Start difference. First operand 12061 states and 12732 transitions. Second operand  has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:10,276 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:10,276 INFO  L93              Difference]: Finished difference Result 27107 states and 28671 transitions.
[2024-11-19 18:20:10,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:20:10,277 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 656
[2024-11-19 18:20:10,277 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:10,290 INFO  L225             Difference]: With dead ends: 27107
[2024-11-19 18:20:10,291 INFO  L226             Difference]: Without dead ends: 15048
[2024-11-19 18:20:10,299 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
[2024-11-19 18:20:10,300 INFO  L432           NwaCegarLoop]: 149 mSDtfsCounter, 305 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:10,301 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 182 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-19 18:20:10,311 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15048 states.
[2024-11-19 18:20:10,407 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15048 to 14150.
[2024-11-19 18:20:10,418 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14150 states, 14149 states have (on average 1.0499681956322002) internal successors, (14856), 14149 states have internal predecessors, (14856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:10,435 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14150 states to 14150 states and 14856 transitions.
[2024-11-19 18:20:10,437 INFO  L78                 Accepts]: Start accepts. Automaton has 14150 states and 14856 transitions. Word has length 656
[2024-11-19 18:20:10,437 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:10,437 INFO  L471      AbstractCegarLoop]: Abstraction has 14150 states and 14856 transitions.
[2024-11-19 18:20:10,438 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:10,438 INFO  L276                IsEmpty]: Start isEmpty. Operand 14150 states and 14856 transitions.
[2024-11-19 18:20:10,446 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 664
[2024-11-19 18:20:10,446 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:10,448 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:10,448 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-19 18:20:10,448 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:10,448 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:10,449 INFO  L85        PathProgramCache]: Analyzing trace with hash -1894546033, now seen corresponding path program 1 times
[2024-11-19 18:20:10,449 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:10,449 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849269234]
[2024-11-19 18:20:10,449 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:10,449 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:10,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:11,284 INFO  L134       CoverageAnalysis]: Checked inductivity of 749 backedges. 530 proven. 190 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked.
[2024-11-19 18:20:11,285 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:11,285 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849269234]
[2024-11-19 18:20:11,285 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849269234] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:20:11,285 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764124714]
[2024-11-19 18:20:11,285 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:11,285 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:20:11,285 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:20:11,287 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:20:11,287 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-19 18:20:11,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:11,505 INFO  L255         TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-19 18:20:11,513 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:20:11,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 749 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked.
[2024-11-19 18:20:11,906 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:20:11,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764124714] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:11,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:20:11,907 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-19 18:20:11,907 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565830691]
[2024-11-19 18:20:11,907 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:11,908 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:20:11,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:11,908 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:20:11,908 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-19 18:20:11,909 INFO  L87              Difference]: Start difference. First operand 14150 states and 14856 transitions. Second operand  has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:12,980 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:12,980 INFO  L93              Difference]: Finished difference Result 32806 states and 34515 transitions.
[2024-11-19 18:20:12,981 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:20:12,981 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 663
[2024-11-19 18:20:12,981 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:13,002 INFO  L225             Difference]: With dead ends: 32806
[2024-11-19 18:20:13,003 INFO  L226             Difference]: Without dead ends: 18658
[2024-11-19 18:20:13,015 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 662 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-19 18:20:13,015 INFO  L432           NwaCegarLoop]: 453 mSDtfsCounter, 309 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:13,016 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 481 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-19 18:20:13,031 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18658 states.
[2024-11-19 18:20:13,172 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18658 to 18647.
[2024-11-19 18:20:13,186 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18647 states, 18646 states have (on average 1.049018556258715) internal successors, (19560), 18646 states have internal predecessors, (19560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:13,206 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18647 states to 18647 states and 19560 transitions.
[2024-11-19 18:20:13,207 INFO  L78                 Accepts]: Start accepts. Automaton has 18647 states and 19560 transitions. Word has length 663
[2024-11-19 18:20:13,208 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:13,208 INFO  L471      AbstractCegarLoop]: Abstraction has 18647 states and 19560 transitions.
[2024-11-19 18:20:13,208 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:13,208 INFO  L276                IsEmpty]: Start isEmpty. Operand 18647 states and 19560 transitions.
[2024-11-19 18:20:13,217 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 698
[2024-11-19 18:20:13,217 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:13,217 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:13,226 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-19 18:20:13,418 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-11-19 18:20:13,418 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:13,419 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:13,419 INFO  L85        PathProgramCache]: Analyzing trace with hash 113709098, now seen corresponding path program 1 times
[2024-11-19 18:20:13,419 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:13,419 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438512268]
[2024-11-19 18:20:13,419 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:13,419 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:13,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:13,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 568 backedges. 462 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked.
[2024-11-19 18:20:13,995 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:13,995 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438512268]
[2024-11-19 18:20:13,995 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438512268] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:13,995 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:13,995 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:20:13,996 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543280054]
[2024-11-19 18:20:13,996 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:13,997 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:20:13,997 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:13,997 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:20:13,998 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:20:13,998 INFO  L87              Difference]: Start difference. First operand 18647 states and 19560 transitions. Second operand  has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:14,996 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:14,997 INFO  L93              Difference]: Finished difference Result 42973 states and 45192 transitions.
[2024-11-19 18:20:14,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:20:14,997 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 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 697
[2024-11-19 18:20:14,998 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:15,021 INFO  L225             Difference]: With dead ends: 42973
[2024-11-19 18:20:15,022 INFO  L226             Difference]: Without dead ends: 24328
[2024-11-19 18:20:15,036 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
[2024-11-19 18:20:15,037 INFO  L432           NwaCegarLoop]: 127 mSDtfsCounter, 65 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:15,037 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 156 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-19 18:20:15,054 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24328 states.
[2024-11-19 18:20:15,205 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24328 to 22833.
[2024-11-19 18:20:15,219 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22833 states, 22832 states have (on average 1.047959004905396) internal successors, (23927), 22832 states have internal predecessors, (23927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:15,238 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22833 states to 22833 states and 23927 transitions.
[2024-11-19 18:20:15,239 INFO  L78                 Accepts]: Start accepts. Automaton has 22833 states and 23927 transitions. Word has length 697
[2024-11-19 18:20:15,240 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:15,240 INFO  L471      AbstractCegarLoop]: Abstraction has 22833 states and 23927 transitions.
[2024-11-19 18:20:15,240 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:15,240 INFO  L276                IsEmpty]: Start isEmpty. Operand 22833 states and 23927 transitions.
[2024-11-19 18:20:15,250 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 714
[2024-11-19 18:20:15,250 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:15,250 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:15,250 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-19 18:20:15,250 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:15,251 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:15,251 INFO  L85        PathProgramCache]: Analyzing trace with hash 951477395, now seen corresponding path program 1 times
[2024-11-19 18:20:15,251 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:15,251 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206011525]
[2024-11-19 18:20:15,251 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:15,251 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:15,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:15,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 823 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked.
[2024-11-19 18:20:15,741 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:15,741 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206011525]
[2024-11-19 18:20:15,741 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206011525] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:15,741 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:15,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:20:15,741 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949411589]
[2024-11-19 18:20:15,741 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:15,742 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:20:15,742 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:15,742 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:20:15,742 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:20:15,743 INFO  L87              Difference]: Start difference. First operand 22833 states and 23927 transitions. Second operand  has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:16,635 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:16,635 INFO  L93              Difference]: Finished difference Result 45970 states and 48160 transitions.
[2024-11-19 18:20:16,636 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:20:16,636 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 713
[2024-11-19 18:20:16,637 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:16,657 INFO  L225             Difference]: With dead ends: 45970
[2024-11-19 18:20:16,657 INFO  L226             Difference]: Without dead ends: 23139
[2024-11-19 18:20:16,669 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
[2024-11-19 18:20:16,669 INFO  L432           NwaCegarLoop]: 492 mSDtfsCounter, 293 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:16,670 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 530 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-19 18:20:16,686 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23139 states.
[2024-11-19 18:20:16,818 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23139 to 22533.
[2024-11-19 18:20:16,832 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22533 states, 22532 states have (on average 1.0469554411503639) internal successors, (23590), 22532 states have internal predecessors, (23590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:16,851 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22533 states to 22533 states and 23590 transitions.
[2024-11-19 18:20:16,852 INFO  L78                 Accepts]: Start accepts. Automaton has 22533 states and 23590 transitions. Word has length 713
[2024-11-19 18:20:16,852 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:16,852 INFO  L471      AbstractCegarLoop]: Abstraction has 22533 states and 23590 transitions.
[2024-11-19 18:20:16,852 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:16,853 INFO  L276                IsEmpty]: Start isEmpty. Operand 22533 states and 23590 transitions.
[2024-11-19 18:20:16,862 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 728
[2024-11-19 18:20:16,862 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:16,862 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:16,862 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-19 18:20:16,862 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:16,863 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:16,863 INFO  L85        PathProgramCache]: Analyzing trace with hash 1741852382, now seen corresponding path program 1 times
[2024-11-19 18:20:16,863 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:16,863 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216752726]
[2024-11-19 18:20:16,863 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:16,863 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:16,977 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:17,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 901 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked.
[2024-11-19 18:20:17,553 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:17,553 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216752726]
[2024-11-19 18:20:17,553 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216752726] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:17,554 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:17,554 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:20:17,554 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228068357]
[2024-11-19 18:20:17,554 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:17,555 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:20:17,555 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:17,555 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:20:17,556 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:20:17,556 INFO  L87              Difference]: Start difference. First operand 22533 states and 23590 transitions. Second operand  has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:18,436 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:18,436 INFO  L93              Difference]: Finished difference Result 48667 states and 51077 transitions.
[2024-11-19 18:20:18,436 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:20:18,437 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 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 727
[2024-11-19 18:20:18,437 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:18,463 INFO  L225             Difference]: With dead ends: 48667
[2024-11-19 18:20:18,463 INFO  L226             Difference]: Without dead ends: 26435
[2024-11-19 18:20:18,476 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
[2024-11-19 18:20:18,476 INFO  L432           NwaCegarLoop]: 502 mSDtfsCounter, 173 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:18,477 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 545 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-19 18:20:18,494 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26435 states.
[2024-11-19 18:20:18,664 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26435 to 25537.
[2024-11-19 18:20:18,680 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25537 states, 25536 states have (on average 1.0446428571428572) internal successors, (26676), 25536 states have internal predecessors, (26676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:18,704 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25537 states to 25537 states and 26676 transitions.
[2024-11-19 18:20:18,704 INFO  L78                 Accepts]: Start accepts. Automaton has 25537 states and 26676 transitions. Word has length 727
[2024-11-19 18:20:18,705 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:18,705 INFO  L471      AbstractCegarLoop]: Abstraction has 25537 states and 26676 transitions.
[2024-11-19 18:20:18,705 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:18,705 INFO  L276                IsEmpty]: Start isEmpty. Operand 25537 states and 26676 transitions.
[2024-11-19 18:20:18,774 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 790
[2024-11-19 18:20:18,775 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:18,775 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:18,775 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-19 18:20:18,775 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:18,776 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:18,776 INFO  L85        PathProgramCache]: Analyzing trace with hash 305015861, now seen corresponding path program 1 times
[2024-11-19 18:20:18,776 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:18,776 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078379823]
[2024-11-19 18:20:18,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:18,777 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:18,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:19,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 1285 backedges. 922 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked.
[2024-11-19 18:20:19,143 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:19,143 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078379823]
[2024-11-19 18:20:19,144 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078379823] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:19,144 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:19,144 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 18:20:19,144 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510850656]
[2024-11-19 18:20:19,144 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:19,145 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 18:20:19,145 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:19,147 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 18:20:19,147 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:20:19,147 INFO  L87              Difference]: Start difference. First operand 25537 states and 26676 transitions. Second operand  has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:20,431 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:20,431 INFO  L93              Difference]: Finished difference Result 52563 states and 54907 transitions.
[2024-11-19 18:20:20,432 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 18:20:20,432 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 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 789
[2024-11-19 18:20:20,433 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:20,456 INFO  L225             Difference]: With dead ends: 52563
[2024-11-19 18:20:20,456 INFO  L226             Difference]: Without dead ends: 27327
[2024-11-19 18:20:20,471 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:20:20,472 INFO  L432           NwaCegarLoop]: 393 mSDtfsCounter, 628 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:20,472 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 423 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-19 18:20:20,487 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27327 states.
[2024-11-19 18:20:20,643 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27327 to 26429.
[2024-11-19 18:20:20,660 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26429 states, 26428 states have (on average 1.035908884516422) internal successors, (27377), 26428 states have internal predecessors, (27377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:20,683 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26429 states to 26429 states and 27377 transitions.
[2024-11-19 18:20:20,684 INFO  L78                 Accepts]: Start accepts. Automaton has 26429 states and 27377 transitions. Word has length 789
[2024-11-19 18:20:20,684 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:20,685 INFO  L471      AbstractCegarLoop]: Abstraction has 26429 states and 27377 transitions.
[2024-11-19 18:20:20,685 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:20,685 INFO  L276                IsEmpty]: Start isEmpty. Operand 26429 states and 27377 transitions.
[2024-11-19 18:20:20,751 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 830
[2024-11-19 18:20:20,751 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:20,751 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:20,751 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-19 18:20:20,751 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:20,752 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:20,752 INFO  L85        PathProgramCache]: Analyzing trace with hash 1068347823, now seen corresponding path program 1 times
[2024-11-19 18:20:20,753 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:20,753 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534381702]
[2024-11-19 18:20:20,753 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:20,753 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:20,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:21,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 1271 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked.
[2024-11-19 18:20:21,450 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:21,450 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534381702]
[2024-11-19 18:20:21,450 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534381702] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:21,450 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:21,450 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-19 18:20:21,450 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552921882]
[2024-11-19 18:20:21,450 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:21,451 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-19 18:20:21,452 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:21,452 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-19 18:20:21,452 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-19 18:20:21,453 INFO  L87              Difference]: Start difference. First operand 26429 states and 27377 transitions. Second operand  has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:22,618 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:22,619 INFO  L93              Difference]: Finished difference Result 51706 states and 53570 transitions.
[2024-11-19 18:20:22,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 18:20:22,619 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 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 829
[2024-11-19 18:20:22,620 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:22,644 INFO  L225             Difference]: With dead ends: 51706
[2024-11-19 18:20:22,644 INFO  L226             Difference]: Without dead ends: 25578
[2024-11-19 18:20:22,660 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-19 18:20:22,661 INFO  L432           NwaCegarLoop]: 460 mSDtfsCounter, 520 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:22,661 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 531 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-19 18:20:22,676 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25578 states.
[2024-11-19 18:20:22,833 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25578 to 24320.
[2024-11-19 18:20:22,848 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 24320 states, 24319 states have (on average 1.0236851844237016) internal successors, (24895), 24319 states have internal predecessors, (24895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:22,869 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24320 states to 24320 states and 24895 transitions.
[2024-11-19 18:20:22,869 INFO  L78                 Accepts]: Start accepts. Automaton has 24320 states and 24895 transitions. Word has length 829
[2024-11-19 18:20:22,870 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:22,870 INFO  L471      AbstractCegarLoop]: Abstraction has 24320 states and 24895 transitions.
[2024-11-19 18:20:22,870 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:22,870 INFO  L276                IsEmpty]: Start isEmpty. Operand 24320 states and 24895 transitions.
[2024-11-19 18:20:22,884 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 925
[2024-11-19 18:20:22,884 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:22,885 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:22,885 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-19 18:20:22,885 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:22,885 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:22,885 INFO  L85        PathProgramCache]: Analyzing trace with hash 792366253, now seen corresponding path program 1 times
[2024-11-19 18:20:22,886 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:22,886 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237350709]
[2024-11-19 18:20:22,886 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:22,886 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:23,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:23,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 1751 backedges. 1023 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked.
[2024-11-19 18:20:23,653 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:23,653 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237350709]
[2024-11-19 18:20:23,654 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237350709] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:23,654 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:23,654 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:20:23,654 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26368658]
[2024-11-19 18:20:23,654 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:23,655 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:20:23,655 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:23,656 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:20:23,656 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:20:23,656 INFO  L87              Difference]: Start difference. First operand 24320 states and 24895 transitions. Second operand  has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:24,670 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:24,670 INFO  L93              Difference]: Finished difference Result 53141 states and 54422 transitions.
[2024-11-19 18:20:24,670 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:20:24,671 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 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 924
[2024-11-19 18:20:24,671 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:24,708 INFO  L225             Difference]: With dead ends: 53141
[2024-11-19 18:20:24,708 INFO  L226             Difference]: Without dead ends: 29122
[2024-11-19 18:20:24,728 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
[2024-11-19 18:20:24,729 INFO  L432           NwaCegarLoop]: 100 mSDtfsCounter, 346 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:24,729 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 120 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-19 18:20:24,753 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29122 states.
[2024-11-19 18:20:24,930 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29122 to 24916.
[2024-11-19 18:20:24,944 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 24916 states, 24915 states have (on average 1.0221151916516156) internal successors, (25466), 24915 states have internal predecessors, (25466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:24,966 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24916 states to 24916 states and 25466 transitions.
[2024-11-19 18:20:24,967 INFO  L78                 Accepts]: Start accepts. Automaton has 24916 states and 25466 transitions. Word has length 924
[2024-11-19 18:20:24,968 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:24,968 INFO  L471      AbstractCegarLoop]: Abstraction has 24916 states and 25466 transitions.
[2024-11-19 18:20:24,968 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:24,968 INFO  L276                IsEmpty]: Start isEmpty. Operand 24916 states and 25466 transitions.
[2024-11-19 18:20:24,981 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 928
[2024-11-19 18:20:24,981 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:24,981 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:24,981 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-19 18:20:24,982 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:24,982 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:24,982 INFO  L85        PathProgramCache]: Analyzing trace with hash 1100803395, now seen corresponding path program 1 times
[2024-11-19 18:20:24,982 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:24,982 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582752063]
[2024-11-19 18:20:24,982 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:24,982 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:25,104 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:25,572 INFO  L134       CoverageAnalysis]: Checked inductivity of 1199 backedges. 738 proven. 0 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked.
[2024-11-19 18:20:25,572 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:25,573 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582752063]
[2024-11-19 18:20:25,573 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582752063] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:25,573 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:25,573 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 18:20:25,573 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992414417]
[2024-11-19 18:20:25,573 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:25,574 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 18:20:25,574 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:25,574 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 18:20:25,574 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:20:25,575 INFO  L87              Difference]: Start difference. First operand 24916 states and 25466 transitions. Second operand  has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:26,727 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:26,728 INFO  L93              Difference]: Finished difference Result 54021 states and 55229 transitions.
[2024-11-19 18:20:26,728 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 18:20:26,728 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 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 927
[2024-11-19 18:20:26,729 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:26,755 INFO  L225             Difference]: With dead ends: 54021
[2024-11-19 18:20:26,755 INFO  L226             Difference]: Without dead ends: 29406
[2024-11-19 18:20:26,772 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:20:26,772 INFO  L432           NwaCegarLoop]: 97 mSDtfsCounter, 457 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:26,773 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 137 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-19 18:20:26,790 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29406 states.
[2024-11-19 18:20:26,949 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29406 to 24615.
[2024-11-19 18:20:26,964 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 24615 states, 24614 states have (on average 1.0220199886243602) internal successors, (25156), 24614 states have internal predecessors, (25156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:26,985 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24615 states to 24615 states and 25156 transitions.
[2024-11-19 18:20:26,986 INFO  L78                 Accepts]: Start accepts. Automaton has 24615 states and 25156 transitions. Word has length 927
[2024-11-19 18:20:26,987 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:26,987 INFO  L471      AbstractCegarLoop]: Abstraction has 24615 states and 25156 transitions.
[2024-11-19 18:20:26,987 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:26,987 INFO  L276                IsEmpty]: Start isEmpty. Operand 24615 states and 25156 transitions.
[2024-11-19 18:20:27,005 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 964
[2024-11-19 18:20:27,005 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:27,006 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:27,006 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-11-19 18:20:27,006 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:27,007 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:27,007 INFO  L85        PathProgramCache]: Analyzing trace with hash -390225527, now seen corresponding path program 1 times
[2024-11-19 18:20:27,007 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:27,007 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064439142]
[2024-11-19 18:20:27,007 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:27,008 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:27,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:27,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 1364 backedges. 776 proven. 0 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked.
[2024-11-19 18:20:27,905 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:27,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064439142]
[2024-11-19 18:20:27,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064439142] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:27,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:27,906 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 18:20:27,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845637289]
[2024-11-19 18:20:27,906 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:27,907 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 18:20:27,907 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:27,908 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 18:20:27,908 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:20:27,908 INFO  L87              Difference]: Start difference. First operand 24615 states and 25156 transitions. Second operand  has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 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)
[2024-11-19 18:20:29,273 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:29,274 INFO  L93              Difference]: Finished difference Result 58523 states and 59808 transitions.
[2024-11-19 18:20:29,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 18:20:29,274 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 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) Word has length 963
[2024-11-19 18:20:29,275 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:29,305 INFO  L225             Difference]: With dead ends: 58523
[2024-11-19 18:20:29,305 INFO  L226             Difference]: Without dead ends: 34209
[2024-11-19 18:20:29,321 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:20:29,322 INFO  L432           NwaCegarLoop]: 73 mSDtfsCounter, 404 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:29,322 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 133 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-19 18:20:29,341 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34209 states.
[2024-11-19 18:20:29,521 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34209 to 24914.
[2024-11-19 18:20:29,535 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 24914 states, 24913 states have (on average 1.0219162686147794) internal successors, (25459), 24913 states have internal predecessors, (25459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:29,557 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24914 states to 24914 states and 25459 transitions.
[2024-11-19 18:20:29,559 INFO  L78                 Accepts]: Start accepts. Automaton has 24914 states and 25459 transitions. Word has length 963
[2024-11-19 18:20:29,559 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:29,560 INFO  L471      AbstractCegarLoop]: Abstraction has 24914 states and 25459 transitions.
[2024-11-19 18:20:29,560 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 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)
[2024-11-19 18:20:29,560 INFO  L276                IsEmpty]: Start isEmpty. Operand 24914 states and 25459 transitions.
[2024-11-19 18:20:29,582 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1012
[2024-11-19 18:20:29,582 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:29,583 INFO  L215           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:29,583 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-11-19 18:20:29,583 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:29,583 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:29,584 INFO  L85        PathProgramCache]: Analyzing trace with hash -1340576754, now seen corresponding path program 1 times
[2024-11-19 18:20:29,584 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:29,584 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804657629]
[2024-11-19 18:20:29,584 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:29,584 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:29,702 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:30,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 2284 backedges. 1595 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked.
[2024-11-19 18:20:30,333 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:30,333 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804657629]
[2024-11-19 18:20:30,333 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804657629] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:20:30,333 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:20:30,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 18:20:30,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702907468]
[2024-11-19 18:20:30,334 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:20:30,335 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 18:20:30,335 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:30,336 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 18:20:30,336 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:20:30,337 INFO  L87              Difference]: Start difference. First operand 24914 states and 25459 transitions. Second operand  has 4 states, 4 states have (on average 142.25) internal successors, (569), 4 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:31,593 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:31,593 INFO  L93              Difference]: Finished difference Result 55213 states and 56406 transitions.
[2024-11-19 18:20:31,593 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 18:20:31,594 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 142.25) internal successors, (569), 4 states have internal predecessors, (569), 0 states have call successors, (0), 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 1011
[2024-11-19 18:20:31,594 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:31,621 INFO  L225             Difference]: With dead ends: 55213
[2024-11-19 18:20:31,621 INFO  L226             Difference]: Without dead ends: 27602
[2024-11-19 18:20:31,635 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:20:31,635 INFO  L432           NwaCegarLoop]: 69 mSDtfsCounter, 505 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:31,636 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 129 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-19 18:20:31,653 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27602 states.
[2024-11-19 18:20:31,800 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27602 to 21315.
[2024-11-19 18:20:31,812 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21315 states, 21314 states have (on average 1.0205498733226988) internal successors, (21752), 21314 states have internal predecessors, (21752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:31,830 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21315 states to 21315 states and 21752 transitions.
[2024-11-19 18:20:31,831 INFO  L78                 Accepts]: Start accepts. Automaton has 21315 states and 21752 transitions. Word has length 1011
[2024-11-19 18:20:31,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:31,832 INFO  L471      AbstractCegarLoop]: Abstraction has 21315 states and 21752 transitions.
[2024-11-19 18:20:31,832 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 142.25) internal successors, (569), 4 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:31,832 INFO  L276                IsEmpty]: Start isEmpty. Operand 21315 states and 21752 transitions.
[2024-11-19 18:20:31,847 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1060
[2024-11-19 18:20:31,847 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:31,847 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:20:31,847 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-11-19 18:20:31,848 INFO  L396      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:20:31,848 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:20:31,848 INFO  L85        PathProgramCache]: Analyzing trace with hash -1800342180, now seen corresponding path program 1 times
[2024-11-19 18:20:31,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:20:31,848 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65565869]
[2024-11-19 18:20:31,848 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:31,848 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:20:31,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:32,980 INFO  L134       CoverageAnalysis]: Checked inductivity of 1603 backedges. 115 proven. 757 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked.
[2024-11-19 18:20:32,981 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:20:32,981 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65565869]
[2024-11-19 18:20:32,981 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65565869] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:20:32,981 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378909717]
[2024-11-19 18:20:32,982 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:20:32,982 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:20:32,982 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:20:32,984 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:20:32,985 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-19 18:20:33,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:20:33,320 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-19 18:20:33,330 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:20:38,225 INFO  L134       CoverageAnalysis]: Checked inductivity of 1603 backedges. 115 proven. 757 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked.
[2024-11-19 18:20:38,226 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-19 18:20:39,437 INFO  L134       CoverageAnalysis]: Checked inductivity of 1603 backedges. 115 proven. 757 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked.
[2024-11-19 18:20:39,437 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [378909717] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-19 18:20:39,437 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-19 18:20:39,438 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9
[2024-11-19 18:20:39,438 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354072474]
[2024-11-19 18:20:39,438 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-19 18:20:39,439 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-19 18:20:39,440 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:20:39,441 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-19 18:20:39,441 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90
[2024-11-19 18:20:39,441 INFO  L87              Difference]: Start difference. First operand 21315 states and 21752 transitions. Second operand  has 10 states, 10 states have (on average 144.1) internal successors, (1441), 9 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:42,617 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:20:42,617 INFO  L93              Difference]: Finished difference Result 37803 states and 38631 transitions.
[2024-11-19 18:20:42,618 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-19 18:20:42,618 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 144.1) internal successors, (1441), 9 states have internal predecessors, (1441), 0 states have call successors, (0), 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 1059
[2024-11-19 18:20:42,619 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:20:42,650 INFO  L225             Difference]: With dead ends: 37803
[2024-11-19 18:20:42,650 INFO  L226             Difference]: Without dead ends: 37801
[2024-11-19 18:20:42,657 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2120 GetRequests, 2112 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90
[2024-11-19 18:20:42,658 INFO  L432           NwaCegarLoop]: 56 mSDtfsCounter, 1047 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 3556 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 3874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 3556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-19 18:20:42,658 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 210 Invalid, 3874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 3556 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-19 18:20:42,678 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37801 states.
[2024-11-19 18:20:42,866 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37801 to 21016.
[2024-11-19 18:20:42,880 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21016 states, 21015 states have (on average 1.0205567451820128) internal successors, (21447), 21015 states have internal predecessors, (21447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:42,898 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21016 states to 21016 states and 21447 transitions.
[2024-11-19 18:20:42,899 INFO  L78                 Accepts]: Start accepts. Automaton has 21016 states and 21447 transitions. Word has length 1059
[2024-11-19 18:20:42,900 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:20:42,900 INFO  L471      AbstractCegarLoop]: Abstraction has 21016 states and 21447 transitions.
[2024-11-19 18:20:42,900 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 144.1) internal successors, (1441), 9 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:20:42,900 INFO  L276                IsEmpty]: Start isEmpty. Operand 21016 states and 21447 transitions.
[2024-11-19 18:20:42,917 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1270
[2024-11-19 18:20:42,918 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:20:42,918 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-19 18:20:42,925 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0