./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label48.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 8be7027f
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem12_label48.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 6abe6deda42e5cd6457f2c2e337625778fbe4d0886f20421ed4af9df8a9f44a2
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m
[2024-11-11 16:55:49,346 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-11 16:55:49,406 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-11 16:55:49,410 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-11 16:55:49,411 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-11 16:55:49,432 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-11 16:55:49,434 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-11 16:55:49,434 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-11 16:55:49,435 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-11 16:55:49,438 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-11 16:55:49,439 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-11 16:55:49,439 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-11 16:55:49,439 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-11 16:55:49,439 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-11 16:55:49,440 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-11 16:55:49,440 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-11 16:55:49,440 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-11 16:55:49,440 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-11 16:55:49,440 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-11 16:55:49,441 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-11 16:55:49,441 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-11 16:55:49,443 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-11 16:55:49,443 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-11 16:55:49,443 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-11 16:55:49,443 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-11 16:55:49,444 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-11 16:55:49,444 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-11 16:55:49,444 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-11 16:55:49,444 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-11 16:55:49,444 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-11 16:55:49,445 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-11 16:55:49,445 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-11 16:55:49,445 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-11 16:55:49,445 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-11 16:55:49,446 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-11 16:55:49,446 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-11 16:55:49,446 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-11 16:55:49,447 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-11 16:55:49,447 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-11 16:55:49,447 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-11 16:55:49,447 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-11 16:55:49,448 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-11 16:55:49,448 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 -> 6abe6deda42e5cd6457f2c2e337625778fbe4d0886f20421ed4af9df8a9f44a2
[2024-11-11 16:55:49,631 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-11 16:55:49,651 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-11 16:55:49,652 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-11 16:55:49,653 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-11 16:55:49,654 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-11 16:55:49,655 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label48.c
[2024-11-11 16:55:51,056 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-11 16:55:51,405 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-11 16:55:51,406 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label48.c
[2024-11-11 16:55:51,436 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f4fdf54/38423dc15e714ef79d35fde414c3edd8/FLAG3f5d6273d
[2024-11-11 16:55:51,614 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f4fdf54/38423dc15e714ef79d35fde414c3edd8
[2024-11-11 16:55:51,616 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-11 16:55:51,617 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-11 16:55:51,618 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-11 16:55:51,618 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-11 16:55:51,623 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-11 16:55:51,624 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 04:55:51" (1/1) ...
[2024-11-11 16:55:51,624 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f86fc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:51, skipping insertion in model container
[2024-11-11 16:55:51,624 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 04:55:51" (1/1) ...
[2024-11-11 16:55:51,756 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-11 16:55:52,001 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/Problem12_label48.c[1668,1681]
[2024-11-11 16:55:52,731 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-11 16:55:52,742 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-11 16:55:52,757 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/Problem12_label48.c[1668,1681]
[2024-11-11 16:55:53,089 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-11 16:55:53,108 INFO  L204         MainTranslator]: Completed translation
[2024-11-11 16:55:53,109 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53 WrapperNode
[2024-11-11 16:55:53,109 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-11 16:55:53,110 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-11 16:55:53,110 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-11 16:55:53,110 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-11 16:55:53,115 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,152 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,389 INFO  L138                Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761
[2024-11-11 16:55:53,390 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-11 16:55:53,390 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-11 16:55:53,390 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-11 16:55:53,391 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-11 16:55:53,400 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,401 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,445 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,691 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].
[2024-11-11 16:55:53,695 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,696 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,870 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,892 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,912 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,928 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,963 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-11 16:55:53,964 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-11 16:55:53,965 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-11 16:55:53,965 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-11 16:55:53,966 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (1/1) ...
[2024-11-11 16:55:53,971 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-11 16:55:53,982 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 16:55:54,001 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)
[2024-11-11 16:55:54,011 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
[2024-11-11 16:55:54,046 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-11 16:55:54,047 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-11 16:55:54,047 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-11 16:55:54,047 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-11 16:55:54,115 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-11 16:55:54,116 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-11 16:55:57,303 INFO  L?                        ?]: Removed 702 outVars from TransFormulas that were not future-live.
[2024-11-11 16:55:57,304 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-11 16:55:57,335 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-11 16:55:57,337 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-11 16:55:57,337 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 04:55:57 BoogieIcfgContainer
[2024-11-11 16:55:57,337 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-11 16:55:57,339 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-11 16:55:57,339 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-11 16:55:57,342 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-11 16:55:57,342 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 04:55:51" (1/3) ...
[2024-11-11 16:55:57,342 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aad6c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 04:55:57, skipping insertion in model container
[2024-11-11 16:55:57,342 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:55:53" (2/3) ...
[2024-11-11 16:55:57,343 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aad6c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 04:55:57, skipping insertion in model container
[2024-11-11 16:55:57,343 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 04:55:57" (3/3) ...
[2024-11-11 16:55:57,344 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem12_label48.c
[2024-11-11 16:55:57,357 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-11 16:55:57,357 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-11 16:55:57,427 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-11 16:55:57,433 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;@17ac7efe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-11 16:55:57,433 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-11 16:55:57,442 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:55:57,446 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-11 16:55:57,446 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:55:57,447 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 16:55:57,447 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:55:57,452 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:55:57,452 INFO  L85        PathProgramCache]: Analyzing trace with hash -1417350502, now seen corresponding path program 1 times
[2024-11-11 16:55:57,458 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:55:57,459 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440635131]
[2024-11-11 16:55:57,459 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:55:57,459 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:55:57,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:55:57,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-11 16:55:57,651 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:55:57,652 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440635131]
[2024-11-11 16:55:57,652 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440635131] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:55:57,652 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:55:57,652 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-11 16:55:57,657 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423425782]
[2024-11-11 16:55:57,658 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:55:57,661 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:55:57,661 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:55:57,690 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:55:57,694 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:55:57,697 INFO  L87              Difference]: Start difference. First operand  has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 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 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:01,050 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:01,050 INFO  L93              Difference]: Finished difference Result 2388 states and 4629 transitions.
[2024-11-11 16:56:01,052 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:56:01,053 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10
[2024-11-11 16:56:01,053 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:01,078 INFO  L225             Difference]: With dead ends: 2388
[2024-11-11 16:56:01,078 INFO  L226             Difference]: Without dead ends: 1506
[2024-11-11 16:56:01,084 INFO  L434           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
[2024-11-11 16:56:01,088 INFO  L435           NwaCegarLoop]: 471 mSDtfsCounter, 824 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:01,089 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 481 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-11-11 16:56:01,107 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1506 states.
[2024-11-11 16:56:01,181 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506.
[2024-11-11 16:56:01,186 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1506 states, 1505 states have (on average 1.6385382059800664) internal successors, (2466), 1505 states have internal predecessors, (2466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:01,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2466 transitions.
[2024-11-11 16:56:01,193 INFO  L78                 Accepts]: Start accepts. Automaton has 1506 states and 2466 transitions. Word has length 10
[2024-11-11 16:56:01,194 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:01,194 INFO  L471      AbstractCegarLoop]: Abstraction has 1506 states and 2466 transitions.
[2024-11-11 16:56:01,194 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:01,194 INFO  L276                IsEmpty]: Start isEmpty. Operand 1506 states and 2466 transitions.
[2024-11-11 16:56:01,197 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-11-11 16:56:01,197 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:01,197 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-11-11 16:56:01,198 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-11 16:56:01,199 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:01,200 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:01,200 INFO  L85        PathProgramCache]: Analyzing trace with hash 1004872137, now seen corresponding path program 1 times
[2024-11-11 16:56:01,200 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:01,200 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678370963]
[2024-11-11 16:56:01,201 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:01,201 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:01,271 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:01,543 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-11 16:56:01,544 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:01,544 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678370963]
[2024-11-11 16:56:01,544 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678370963] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-11 16:56:01,545 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493577983]
[2024-11-11 16:56:01,545 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:01,545 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 16:56:01,545 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 16:56:01,548 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)
[2024-11-11 16:56:01,549 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-11 16:56:01,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:01,620 INFO  L256         TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-11 16:56:01,625 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-11 16:56:01,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-11 16:56:01,671 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-11 16:56:01,671 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [493577983] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:01,671 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-11 16:56:01,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-11 16:56:01,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213721349]
[2024-11-11 16:56:01,673 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:01,673 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:56:01,673 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:01,674 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:56:01,674 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-11 16:56:01,675 INFO  L87              Difference]: Start difference. First operand 1506 states and 2466 transitions. Second operand  has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:04,815 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:04,815 INFO  L93              Difference]: Finished difference Result 4512 states and 7393 transitions.
[2024-11-11 16:56:04,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:56:04,816 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81
[2024-11-11 16:56:04,816 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:04,824 INFO  L225             Difference]: With dead ends: 4512
[2024-11-11 16:56:04,824 INFO  L226             Difference]: Without dead ends: 3008
[2024-11-11 16:56:04,825 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-11 16:56:04,826 INFO  L435           NwaCegarLoop]: 1383 mSDtfsCounter, 769 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 2867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:04,827 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1391 Invalid, 2867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-11 16:56:04,829 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3008 states.
[2024-11-11 16:56:04,857 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 3008.
[2024-11-11 16:56:04,860 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3008 states, 3007 states have (on average 1.3634852011972065) internal successors, (4100), 3007 states have internal predecessors, (4100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:04,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4100 transitions.
[2024-11-11 16:56:04,867 INFO  L78                 Accepts]: Start accepts. Automaton has 3008 states and 4100 transitions. Word has length 81
[2024-11-11 16:56:04,867 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:04,868 INFO  L471      AbstractCegarLoop]: Abstraction has 3008 states and 4100 transitions.
[2024-11-11 16:56:04,868 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:04,868 INFO  L276                IsEmpty]: Start isEmpty. Operand 3008 states and 4100 transitions.
[2024-11-11 16:56:04,871 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2024-11-11 16:56:04,871 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:04,871 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-11-11 16:56:04,886 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-11 16:56:05,072 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 16:56:05,073 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:05,073 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:05,073 INFO  L85        PathProgramCache]: Analyzing trace with hash -2017229475, now seen corresponding path program 1 times
[2024-11-11 16:56:05,074 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:05,074 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468614216]
[2024-11-11 16:56:05,074 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:05,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:05,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:05,229 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-11 16:56:05,230 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:05,230 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468614216]
[2024-11-11 16:56:05,230 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468614216] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:05,230 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:56:05,230 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-11 16:56:05,230 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752091089]
[2024-11-11 16:56:05,230 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:05,231 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:56:05,231 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:05,231 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:56:05,232 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:56:05,232 INFO  L87              Difference]: Start difference. First operand 3008 states and 4100 transitions. Second operand  has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:07,867 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:07,868 INFO  L93              Difference]: Finished difference Result 7516 states and 10661 transitions.
[2024-11-11 16:56:07,868 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:56:07,868 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 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 84
[2024-11-11 16:56:07,868 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:07,879 INFO  L225             Difference]: With dead ends: 7516
[2024-11-11 16:56:07,880 INFO  L226             Difference]: Without dead ends: 4510
[2024-11-11 16:56:07,883 INFO  L434           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
[2024-11-11 16:56:07,884 INFO  L435           NwaCegarLoop]: 514 mSDtfsCounter, 748 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:07,884 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 520 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [910 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-11-11 16:56:07,888 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4510 states.
[2024-11-11 16:56:07,925 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4510 to 4510.
[2024-11-11 16:56:07,930 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4510 states, 4509 states have (on average 1.3251275227323132) internal successors, (5975), 4509 states have internal predecessors, (5975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:07,936 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 5975 transitions.
[2024-11-11 16:56:07,936 INFO  L78                 Accepts]: Start accepts. Automaton has 4510 states and 5975 transitions. Word has length 84
[2024-11-11 16:56:07,936 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:07,937 INFO  L471      AbstractCegarLoop]: Abstraction has 4510 states and 5975 transitions.
[2024-11-11 16:56:07,937 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:07,937 INFO  L276                IsEmpty]: Start isEmpty. Operand 4510 states and 5975 transitions.
[2024-11-11 16:56:07,938 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-11-11 16:56:07,938 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:07,938 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-11-11 16:56:07,938 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-11 16:56:07,938 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:07,939 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:07,939 INFO  L85        PathProgramCache]: Analyzing trace with hash 1374981862, now seen corresponding path program 1 times
[2024-11-11 16:56:07,939 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:07,939 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55280582]
[2024-11-11 16:56:07,939 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:07,940 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:07,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:08,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-11 16:56:08,195 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:08,195 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55280582]
[2024-11-11 16:56:08,195 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55280582] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:08,196 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:56:08,196 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 16:56:08,196 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326760335]
[2024-11-11 16:56:08,196 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:08,196 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-11 16:56:08,196 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:08,197 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-11 16:56:08,197 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-11 16:56:08,197 INFO  L87              Difference]: Start difference. First operand 4510 states and 5975 transitions. Second operand  has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:12,380 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:12,381 INFO  L93              Difference]: Finished difference Result 14275 states and 18791 transitions.
[2024-11-11 16:56:12,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-11 16:56:12,382 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95
[2024-11-11 16:56:12,382 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:12,445 INFO  L225             Difference]: With dead ends: 14275
[2024-11-11 16:56:12,449 INFO  L226             Difference]: Without dead ends: 9767
[2024-11-11 16:56:12,467 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-11 16:56:12,469 INFO  L435           NwaCegarLoop]: 169 mSDtfsCounter, 2162 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4749 mSolverCounterSat, 778 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 5527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 778 IncrementalHoareTripleChecker+Valid, 4749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:12,471 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 185 Invalid, 5527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [778 Valid, 4749 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2024-11-11 16:56:12,489 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9767 states.
[2024-11-11 16:56:12,802 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9767 to 9016.
[2024-11-11 16:56:12,814 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9016 states, 9015 states have (on average 1.3039378813089295) internal successors, (11755), 9015 states have internal predecessors, (11755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:12,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 11755 transitions.
[2024-11-11 16:56:12,828 INFO  L78                 Accepts]: Start accepts. Automaton has 9016 states and 11755 transitions. Word has length 95
[2024-11-11 16:56:12,828 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:12,828 INFO  L471      AbstractCegarLoop]: Abstraction has 9016 states and 11755 transitions.
[2024-11-11 16:56:12,828 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:12,829 INFO  L276                IsEmpty]: Start isEmpty. Operand 9016 states and 11755 transitions.
[2024-11-11 16:56:12,835 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2024-11-11 16:56:12,836 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:12,836 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-11-11 16:56:12,836 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-11 16:56:12,837 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:12,837 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:12,838 INFO  L85        PathProgramCache]: Analyzing trace with hash -259629189, now seen corresponding path program 1 times
[2024-11-11 16:56:12,838 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:12,838 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088916537]
[2024-11-11 16:56:12,838 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:12,839 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:12,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:13,129 INFO  L134       CoverageAnalysis]: Checked inductivity of 82 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-11 16:56:13,130 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:13,130 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088916537]
[2024-11-11 16:56:13,131 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088916537] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:13,131 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:56:13,131 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 16:56:13,131 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047777818]
[2024-11-11 16:56:13,131 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:13,132 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-11 16:56:13,132 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:13,133 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-11 16:56:13,133 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-11 16:56:13,133 INFO  L87              Difference]: Start difference. First operand 9016 states and 11755 transitions. Second operand  has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:16,746 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:16,746 INFO  L93              Difference]: Finished difference Result 22575 states and 30209 transitions.
[2024-11-11 16:56:16,747 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-11 16:56:16,747 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149
[2024-11-11 16:56:16,747 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:16,854 INFO  L225             Difference]: With dead ends: 22575
[2024-11-11 16:56:16,854 INFO  L226             Difference]: Without dead ends: 12773
[2024-11-11 16:56:16,860 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-11 16:56:16,861 INFO  L435           NwaCegarLoop]: 695 mSDtfsCounter, 690 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 3806 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 4469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 3806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:16,861 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 714 Invalid, 4469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 3806 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2024-11-11 16:56:16,870 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12773 states.
[2024-11-11 16:56:17,035 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12773 to 12771.
[2024-11-11 16:56:17,057 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12771 states, 12770 states have (on average 1.2173844949099453) internal successors, (15546), 12770 states have internal predecessors, (15546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:17,080 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12771 states to 12771 states and 15546 transitions.
[2024-11-11 16:56:17,080 INFO  L78                 Accepts]: Start accepts. Automaton has 12771 states and 15546 transitions. Word has length 149
[2024-11-11 16:56:17,081 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:17,082 INFO  L471      AbstractCegarLoop]: Abstraction has 12771 states and 15546 transitions.
[2024-11-11 16:56:17,082 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:17,082 INFO  L276                IsEmpty]: Start isEmpty. Operand 12771 states and 15546 transitions.
[2024-11-11 16:56:17,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 241
[2024-11-11 16:56:17,084 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:17,085 INFO  L218           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 16:56:17,085 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-11 16:56:17,085 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:17,086 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:17,086 INFO  L85        PathProgramCache]: Analyzing trace with hash 1909280368, now seen corresponding path program 1 times
[2024-11-11 16:56:17,087 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:17,087 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994557480]
[2024-11-11 16:56:17,087 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:17,087 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:17,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:17,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 99 backedges. 41 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-11 16:56:17,533 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:17,533 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994557480]
[2024-11-11 16:56:17,534 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994557480] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-11 16:56:17,534 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279432247]
[2024-11-11 16:56:17,534 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:17,535 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 16:56:17,535 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 16:56:17,536 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)
[2024-11-11 16:56:17,541 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-11 16:56:17,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:17,644 INFO  L256         TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-11 16:56:17,652 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-11 16:56:17,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 99 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-11 16:56:17,686 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-11 16:56:17,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279432247] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:17,687 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-11 16:56:17,687 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2024-11-11 16:56:17,687 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805274347]
[2024-11-11 16:56:17,687 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:17,687 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:56:17,687 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:17,688 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:56:17,690 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-11 16:56:17,691 INFO  L87              Difference]: Start difference. First operand 12771 states and 15546 transitions. Second operand  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:20,497 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:20,497 INFO  L93              Difference]: Finished difference Result 32299 states and 40261 transitions.
[2024-11-11 16:56:20,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:56:20,498 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 240
[2024-11-11 16:56:20,498 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:20,546 INFO  L225             Difference]: With dead ends: 32299
[2024-11-11 16:56:20,546 INFO  L226             Difference]: Without dead ends: 20281
[2024-11-11 16:56:20,558 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-11 16:56:20,561 INFO  L435           NwaCegarLoop]: 964 mSDtfsCounter, 802 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 3045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 745 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:20,561 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 972 Invalid, 3045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [745 Valid, 2300 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-11 16:56:20,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20281 states.
[2024-11-11 16:56:20,916 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20281 to 18779.
[2024-11-11 16:56:20,974 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18779 states, 18778 states have (on average 1.2516774949408882) internal successors, (23504), 18778 states have internal predecessors, (23504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:21,028 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18779 states to 18779 states and 23504 transitions.
[2024-11-11 16:56:21,029 INFO  L78                 Accepts]: Start accepts. Automaton has 18779 states and 23504 transitions. Word has length 240
[2024-11-11 16:56:21,029 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:21,030 INFO  L471      AbstractCegarLoop]: Abstraction has 18779 states and 23504 transitions.
[2024-11-11 16:56:21,030 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:21,030 INFO  L276                IsEmpty]: Start isEmpty. Operand 18779 states and 23504 transitions.
[2024-11-11 16:56:21,036 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 251
[2024-11-11 16:56:21,036 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:21,036 INFO  L218           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 16:56:21,052 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-11 16:56:21,240 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,SelfDestructingSolverStorable5
[2024-11-11 16:56:21,241 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:21,241 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:21,241 INFO  L85        PathProgramCache]: Analyzing trace with hash -587403453, now seen corresponding path program 1 times
[2024-11-11 16:56:21,241 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:21,241 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262745973]
[2024-11-11 16:56:21,241 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:21,242 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:21,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:21,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 113 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked.
[2024-11-11 16:56:21,530 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:21,530 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262745973]
[2024-11-11 16:56:21,531 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262745973] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:21,531 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:56:21,531 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 16:56:21,531 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92448448]
[2024-11-11 16:56:21,531 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:21,531 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:56:21,531 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:21,532 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:56:21,532 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:56:21,532 INFO  L87              Difference]: Start difference. First operand 18779 states and 23504 transitions. Second operand  has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:24,135 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:24,136 INFO  L93              Difference]: Finished difference Result 36805 states and 46250 transitions.
[2024-11-11 16:56:24,136 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:56:24,136 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 250
[2024-11-11 16:56:24,137 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:24,164 INFO  L225             Difference]: With dead ends: 36805
[2024-11-11 16:56:24,164 INFO  L226             Difference]: Without dead ends: 18779
[2024-11-11 16:56:24,180 INFO  L434           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
[2024-11-11 16:56:24,181 INFO  L435           NwaCegarLoop]: 990 mSDtfsCounter, 817 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:24,181 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 998 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-11 16:56:24,195 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18779 states.
[2024-11-11 16:56:24,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18779 to 18779.
[2024-11-11 16:56:24,346 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18779 states, 18778 states have (on average 1.193098306528917) internal successors, (22404), 18778 states have internal predecessors, (22404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:24,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18779 states to 18779 states and 22404 transitions.
[2024-11-11 16:56:24,366 INFO  L78                 Accepts]: Start accepts. Automaton has 18779 states and 22404 transitions. Word has length 250
[2024-11-11 16:56:24,367 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:24,367 INFO  L471      AbstractCegarLoop]: Abstraction has 18779 states and 22404 transitions.
[2024-11-11 16:56:24,367 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:24,367 INFO  L276                IsEmpty]: Start isEmpty. Operand 18779 states and 22404 transitions.
[2024-11-11 16:56:24,369 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 266
[2024-11-11 16:56:24,369 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:24,369 INFO  L218           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 16:56:24,369 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-11 16:56:24,369 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:24,370 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:24,370 INFO  L85        PathProgramCache]: Analyzing trace with hash -1123992775, now seen corresponding path program 1 times
[2024-11-11 16:56:24,370 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:24,370 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871297332]
[2024-11-11 16:56:24,370 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:24,370 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:24,412 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:24,525 INFO  L134       CoverageAnalysis]: Checked inductivity of 128 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked.
[2024-11-11 16:56:24,525 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:24,525 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871297332]
[2024-11-11 16:56:24,525 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871297332] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:24,525 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:56:24,525 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-11 16:56:24,525 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920880468]
[2024-11-11 16:56:24,525 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:24,526 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:56:24,526 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:24,526 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:56:24,526 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:56:24,526 INFO  L87              Difference]: Start difference. First operand 18779 states and 22404 transitions. Second operand  has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:27,362 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:27,362 INFO  L93              Difference]: Finished difference Result 50325 states and 60873 transitions.
[2024-11-11 16:56:27,363 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:56:27,363 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 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 265
[2024-11-11 16:56:27,363 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:27,399 INFO  L225             Difference]: With dead ends: 50325
[2024-11-11 16:56:27,399 INFO  L226             Difference]: Without dead ends: 29295
[2024-11-11 16:56:27,417 INFO  L434           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
[2024-11-11 16:56:27,418 INFO  L435           NwaCegarLoop]: 303 mSDtfsCounter, 848 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 2773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:27,418 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 310 Invalid, 2773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-11 16:56:27,433 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29295 states.
[2024-11-11 16:56:27,607 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29295 to 27791.
[2024-11-11 16:56:27,631 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27791 states, 27790 states have (on average 1.1655631522130263) internal successors, (32391), 27790 states have internal predecessors, (32391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:27,661 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27791 states to 27791 states and 32391 transitions.
[2024-11-11 16:56:27,662 INFO  L78                 Accepts]: Start accepts. Automaton has 27791 states and 32391 transitions. Word has length 265
[2024-11-11 16:56:27,663 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:27,663 INFO  L471      AbstractCegarLoop]: Abstraction has 27791 states and 32391 transitions.
[2024-11-11 16:56:27,663 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:27,663 INFO  L276                IsEmpty]: Start isEmpty. Operand 27791 states and 32391 transitions.
[2024-11-11 16:56:27,671 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 378
[2024-11-11 16:56:27,671 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:27,672 INFO  L218           NwaCegarLoop]: trace histogram [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, 3, 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]
[2024-11-11 16:56:27,672 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-11 16:56:27,672 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:27,672 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:27,672 INFO  L85        PathProgramCache]: Analyzing trace with hash -1395279574, now seen corresponding path program 1 times
[2024-11-11 16:56:27,672 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:27,673 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120323033]
[2024-11-11 16:56:27,673 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:27,673 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:27,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:27,910 INFO  L134       CoverageAnalysis]: Checked inductivity of 455 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked.
[2024-11-11 16:56:27,911 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:27,911 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120323033]
[2024-11-11 16:56:27,911 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120323033] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:27,911 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:56:27,911 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 16:56:27,911 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852735234]
[2024-11-11 16:56:27,912 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:27,913 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:56:27,913 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:27,914 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:56:27,915 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:56:27,915 INFO  L87              Difference]: Start difference. First operand 27791 states and 32391 transitions. Second operand  has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:30,592 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:30,592 INFO  L93              Difference]: Finished difference Result 68347 states and 80741 transitions.
[2024-11-11 16:56:30,592 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:56:30,593 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 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
[2024-11-11 16:56:30,593 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:30,640 INFO  L225             Difference]: With dead ends: 68347
[2024-11-11 16:56:30,640 INFO  L226             Difference]: Without dead ends: 41309
[2024-11-11 16:56:30,660 INFO  L434           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
[2024-11-11 16:56:30,662 INFO  L435           NwaCegarLoop]: 1180 mSDtfsCounter, 704 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:30,662 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1188 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 2208 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-11 16:56:30,686 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41309 states.
[2024-11-11 16:56:30,952 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41309 to 39807.
[2024-11-11 16:56:30,987 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39807 states, 39806 states have (on average 1.1482691051600262) internal successors, (45708), 39806 states have internal predecessors, (45708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:31,026 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39807 states to 39807 states and 45708 transitions.
[2024-11-11 16:56:31,027 INFO  L78                 Accepts]: Start accepts. Automaton has 39807 states and 45708 transitions. Word has length 377
[2024-11-11 16:56:31,027 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:31,027 INFO  L471      AbstractCegarLoop]: Abstraction has 39807 states and 45708 transitions.
[2024-11-11 16:56:31,027 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:31,028 INFO  L276                IsEmpty]: Start isEmpty. Operand 39807 states and 45708 transitions.
[2024-11-11 16:56:31,032 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 406
[2024-11-11 16:56:31,032 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:31,033 INFO  L218           NwaCegarLoop]: trace histogram [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, 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]
[2024-11-11 16:56:31,033 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-11 16:56:31,033 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:31,033 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:31,034 INFO  L85        PathProgramCache]: Analyzing trace with hash -1632296828, now seen corresponding path program 1 times
[2024-11-11 16:56:31,034 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:31,034 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428035036]
[2024-11-11 16:56:31,034 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:31,034 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:31,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:31,258 INFO  L134       CoverageAnalysis]: Checked inductivity of 487 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-11 16:56:31,258 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:31,258 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428035036]
[2024-11-11 16:56:31,258 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428035036] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:31,258 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:56:31,258 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 16:56:31,259 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438421818]
[2024-11-11 16:56:31,259 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:31,259 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:56:31,259 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:31,259 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:56:31,259 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:56:31,260 INFO  L87              Difference]: Start difference. First operand 39807 states and 45708 transitions. Second operand  has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:34,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:34,487 INFO  L93              Difference]: Finished difference Result 100640 states and 115348 transitions.
[2024-11-11 16:56:34,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:56:34,488 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 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 405
[2024-11-11 16:56:34,488 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:34,566 INFO  L225             Difference]: With dead ends: 100640
[2024-11-11 16:56:34,566 INFO  L226             Difference]: Without dead ends: 61586
[2024-11-11 16:56:34,604 INFO  L434           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
[2024-11-11 16:56:34,605 INFO  L435           NwaCegarLoop]: 1164 mSDtfsCounter, 637 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2524 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 2524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:34,605 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 1172 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 2524 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-11-11 16:56:34,650 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61586 states.
[2024-11-11 16:56:35,113 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61586 to 61586.
[2024-11-11 16:56:35,157 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61586 states, 61585 states have (on average 1.1325485101891695) internal successors, (69748), 61585 states have internal predecessors, (69748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:35,224 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61586 states to 61586 states and 69748 transitions.
[2024-11-11 16:56:35,225 INFO  L78                 Accepts]: Start accepts. Automaton has 61586 states and 69748 transitions. Word has length 405
[2024-11-11 16:56:35,225 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:35,225 INFO  L471      AbstractCegarLoop]: Abstraction has 61586 states and 69748 transitions.
[2024-11-11 16:56:35,225 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:35,225 INFO  L276                IsEmpty]: Start isEmpty. Operand 61586 states and 69748 transitions.
[2024-11-11 16:56:35,232 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 410
[2024-11-11 16:56:35,233 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:35,233 INFO  L218           NwaCegarLoop]: trace histogram [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, 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]
[2024-11-11 16:56:35,233 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-11 16:56:35,233 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:35,234 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:35,234 INFO  L85        PathProgramCache]: Analyzing trace with hash 462101370, now seen corresponding path program 1 times
[2024-11-11 16:56:35,234 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:35,234 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674358095]
[2024-11-11 16:56:35,234 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:35,234 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:35,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:36,871 INFO  L134       CoverageAnalysis]: Checked inductivity of 487 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-11 16:56:36,872 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:36,872 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674358095]
[2024-11-11 16:56:36,872 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674358095] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:36,872 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:56:36,872 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-11 16:56:36,872 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810517344]
[2024-11-11 16:56:36,872 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:36,873 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-11 16:56:36,873 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:36,873 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-11 16:56:36,873 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-11 16:56:36,874 INFO  L87              Difference]: Start difference. First operand 61586 states and 69748 transitions. Second operand  has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:41,902 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:41,902 INFO  L93              Difference]: Finished difference Result 160720 states and 184121 transitions.
[2024-11-11 16:56:41,903 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-11 16:56:41,903 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 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 409
[2024-11-11 16:56:41,904 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:42,037 INFO  L225             Difference]: With dead ends: 160720
[2024-11-11 16:56:42,037 INFO  L226             Difference]: Without dead ends: 99887
[2024-11-11 16:56:42,071 INFO  L434           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
[2024-11-11 16:56:42,072 INFO  L435           NwaCegarLoop]: 113 mSDtfsCounter, 2092 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3489 mSolverCounterSat, 1604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 5093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1604 IncrementalHoareTripleChecker+Valid, 3489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:42,072 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 125 Invalid, 5093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1604 Valid, 3489 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2024-11-11 16:56:42,220 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99887 states.
[2024-11-11 16:56:43,734 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99887 to 84116.
[2024-11-11 16:56:43,787 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 84116 states, 84115 states have (on average 1.1417701955655948) internal successors, (96040), 84115 states have internal predecessors, (96040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:44,049 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84116 states to 84116 states and 96040 transitions.
[2024-11-11 16:56:44,053 INFO  L78                 Accepts]: Start accepts. Automaton has 84116 states and 96040 transitions. Word has length 409
[2024-11-11 16:56:44,055 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:44,055 INFO  L471      AbstractCegarLoop]: Abstraction has 84116 states and 96040 transitions.
[2024-11-11 16:56:44,055 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:44,056 INFO  L276                IsEmpty]: Start isEmpty. Operand 84116 states and 96040 transitions.
[2024-11-11 16:56:44,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 425
[2024-11-11 16:56:44,067 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:44,067 INFO  L218           NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-11 16:56:44,068 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-11 16:56:44,068 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:44,069 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:44,069 INFO  L85        PathProgramCache]: Analyzing trace with hash 273957708, now seen corresponding path program 1 times
[2024-11-11 16:56:44,069 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:44,073 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088900236]
[2024-11-11 16:56:44,073 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:44,073 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:44,153 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:44,504 INFO  L134       CoverageAnalysis]: Checked inductivity of 320 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked.
[2024-11-11 16:56:44,504 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:44,504 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088900236]
[2024-11-11 16:56:44,505 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088900236] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:44,505 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:56:44,505 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 16:56:44,505 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775414881]
[2024-11-11 16:56:44,505 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:44,506 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:56:44,506 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:44,507 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:56:44,508 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:56:44,508 INFO  L87              Difference]: Start difference. First operand 84116 states and 96040 transitions. Second operand  has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:47,555 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:47,556 INFO  L93              Difference]: Finished difference Result 202025 states and 231821 transitions.
[2024-11-11 16:56:47,556 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:56:47,556 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 424
[2024-11-11 16:56:47,558 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:47,865 INFO  L225             Difference]: With dead ends: 202025
[2024-11-11 16:56:47,872 INFO  L226             Difference]: Without dead ends: 118662
[2024-11-11 16:56:47,957 INFO  L434           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
[2024-11-11 16:56:47,958 INFO  L435           NwaCegarLoop]: 1236 mSDtfsCounter, 786 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:47,958 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1244 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-11 16:56:48,013 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 118662 states.
[2024-11-11 16:56:49,264 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 118662 to 111903.
[2024-11-11 16:56:49,365 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 111903 states, 111902 states have (on average 1.1181480223767224) internal successors, (125123), 111902 states have internal predecessors, (125123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:49,520 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 111903 states to 111903 states and 125123 transitions.
[2024-11-11 16:56:49,521 INFO  L78                 Accepts]: Start accepts. Automaton has 111903 states and 125123 transitions. Word has length 424
[2024-11-11 16:56:49,522 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:49,522 INFO  L471      AbstractCegarLoop]: Abstraction has 111903 states and 125123 transitions.
[2024-11-11 16:56:49,523 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:49,523 INFO  L276                IsEmpty]: Start isEmpty. Operand 111903 states and 125123 transitions.
[2024-11-11 16:56:49,534 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 433
[2024-11-11 16:56:49,538 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:49,538 INFO  L218           NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 16:56:49,538 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-11 16:56:49,538 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:49,539 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:49,539 INFO  L85        PathProgramCache]: Analyzing trace with hash -744188340, now seen corresponding path program 1 times
[2024-11-11 16:56:49,539 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:49,539 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693878307]
[2024-11-11 16:56:49,539 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:49,539 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:49,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:50,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 511 backedges. 373 proven. 54 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-11 16:56:50,459 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:50,459 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693878307]
[2024-11-11 16:56:50,459 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693878307] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-11 16:56:50,459 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719497953]
[2024-11-11 16:56:50,459 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:50,459 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 16:56:50,460 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 16:56:50,461 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)
[2024-11-11 16:56:50,462 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-11 16:56:50,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:50,616 INFO  L256         TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-11 16:56:50,625 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-11 16:56:51,185 INFO  L134       CoverageAnalysis]: Checked inductivity of 511 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked.
[2024-11-11 16:56:51,185 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-11 16:56:51,186 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [719497953] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:51,186 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-11 16:56:51,186 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7
[2024-11-11 16:56:51,186 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700558495]
[2024-11-11 16:56:51,186 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:51,187 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-11 16:56:51,187 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:51,187 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-11 16:56:51,187 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-11 16:56:51,188 INFO  L87              Difference]: Start difference. First operand 111903 states and 125123 transitions. Second operand  has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:55,708 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:56:55,708 INFO  L93              Difference]: Finished difference Result 244832 states and 273432 transitions.
[2024-11-11 16:56:55,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-11 16:56:55,708 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 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 432
[2024-11-11 16:56:55,709 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:56:56,267 INFO  L225             Difference]: With dead ends: 244832
[2024-11-11 16:56:56,268 INFO  L226             Difference]: Without dead ends: 133682
[2024-11-11 16:56:56,303 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-11 16:56:56,304 INFO  L435           NwaCegarLoop]: 431 mSDtfsCounter, 1381 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4368 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 5050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 4368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2024-11-11 16:56:56,308 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 445 Invalid, 5050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [682 Valid, 4368 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2024-11-11 16:56:56,517 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 133682 states.
[2024-11-11 16:56:57,787 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 133682 to 129927.
[2024-11-11 16:56:57,863 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 129927 states, 129926 states have (on average 1.0972784508104614) internal successors, (142565), 129926 states have internal predecessors, (142565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:58,003 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129927 states to 129927 states and 142565 transitions.
[2024-11-11 16:56:58,004 INFO  L78                 Accepts]: Start accepts. Automaton has 129927 states and 142565 transitions. Word has length 432
[2024-11-11 16:56:58,005 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:56:58,005 INFO  L471      AbstractCegarLoop]: Abstraction has 129927 states and 142565 transitions.
[2024-11-11 16:56:58,005 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:56:58,005 INFO  L276                IsEmpty]: Start isEmpty. Operand 129927 states and 142565 transitions.
[2024-11-11 16:56:58,012 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 467
[2024-11-11 16:56:58,012 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:56:58,012 INFO  L218           NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-11 16:56:58,029 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-11 16:56:58,216 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 16:56:58,217 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:56:58,217 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:56:58,217 INFO  L85        PathProgramCache]: Analyzing trace with hash 1595808735, now seen corresponding path program 1 times
[2024-11-11 16:56:58,218 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:56:58,218 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064908511]
[2024-11-11 16:56:58,218 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:56:58,218 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:56:58,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:56:58,834 INFO  L134       CoverageAnalysis]: Checked inductivity of 571 backedges. 465 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked.
[2024-11-11 16:56:58,835 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:56:58,835 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064908511]
[2024-11-11 16:56:58,835 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064908511] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:56:58,835 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:56:58,835 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 16:56:58,835 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833641316]
[2024-11-11 16:56:58,835 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:56:58,836 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:56:58,836 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:56:58,836 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:56:58,836 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:56:58,836 INFO  L87              Difference]: Start difference. First operand 129927 states and 142565 transitions. Second operand  has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:57:01,860 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:57:01,861 INFO  L93              Difference]: Finished difference Result 261354 states and 286682 transitions.
[2024-11-11 16:57:01,861 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:57:01,861 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 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 466
[2024-11-11 16:57:01,862 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:57:02,017 INFO  L225             Difference]: With dead ends: 261354
[2024-11-11 16:57:02,017 INFO  L226             Difference]: Without dead ends: 132180
[2024-11-11 16:57:02,064 INFO  L434           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
[2024-11-11 16:57:02,068 INFO  L435           NwaCegarLoop]: 990 mSDtfsCounter, 746 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2024-11-11 16:57:02,068 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 997 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2024-11-11 16:57:02,154 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 132180 states.
[2024-11-11 16:57:03,814 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 132180 to 129176.
[2024-11-11 16:57:03,887 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 129176 states, 129175 states have (on average 1.0805573833946196) internal successors, (139581), 129175 states have internal predecessors, (139581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:57:04,023 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129176 states to 129176 states and 139581 transitions.
[2024-11-11 16:57:04,025 INFO  L78                 Accepts]: Start accepts. Automaton has 129176 states and 139581 transitions. Word has length 466
[2024-11-11 16:57:04,025 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:57:04,025 INFO  L471      AbstractCegarLoop]: Abstraction has 129176 states and 139581 transitions.
[2024-11-11 16:57:04,025 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:57:04,025 INFO  L276                IsEmpty]: Start isEmpty. Operand 129176 states and 139581 transitions.
[2024-11-11 16:57:04,034 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 518
[2024-11-11 16:57:04,034 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:57:04,035 INFO  L218           NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 16:57:04,036 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-11 16:57:04,036 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:57:04,036 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:57:04,036 INFO  L85        PathProgramCache]: Analyzing trace with hash -1341420984, now seen corresponding path program 1 times
[2024-11-11 16:57:04,036 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:57:04,036 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649926919]
[2024-11-11 16:57:04,037 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:57:04,037 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:57:04,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:57:04,574 INFO  L134       CoverageAnalysis]: Checked inductivity of 858 backedges. 689 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked.
[2024-11-11 16:57:04,574 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:57:04,574 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649926919]
[2024-11-11 16:57:04,574 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649926919] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:57:04,574 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:57:04,574 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 16:57:04,574 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367153865]
[2024-11-11 16:57:04,574 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:57:04,575 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:57:04,575 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:57:04,575 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:57:04,576 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:57:04,576 INFO  L87              Difference]: Start difference. First operand 129176 states and 139581 transitions. Second operand  has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:57:08,281 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:57:08,281 INFO  L93              Difference]: Finished difference Result 260603 states and 281436 transitions.
[2024-11-11 16:57:08,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:57:08,282 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 517
[2024-11-11 16:57:08,282 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:57:08,459 INFO  L225             Difference]: With dead ends: 260603
[2024-11-11 16:57:08,459 INFO  L226             Difference]: Without dead ends: 132180
[2024-11-11 16:57:08,512 INFO  L434           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
[2024-11-11 16:57:08,513 INFO  L435           NwaCegarLoop]: 1179 mSDtfsCounter, 694 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 2842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-11-11 16:57:08,513 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1187 Invalid, 2842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-11-11 16:57:08,607 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 132180 states.
[2024-11-11 16:57:09,940 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 132180 to 127674.
[2024-11-11 16:57:10,018 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 127674 states, 127673 states have (on average 1.0727013542409123) internal successors, (136955), 127673 states have internal predecessors, (136955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:57:10,140 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 127674 states to 127674 states and 136955 transitions.
[2024-11-11 16:57:10,141 INFO  L78                 Accepts]: Start accepts. Automaton has 127674 states and 136955 transitions. Word has length 517
[2024-11-11 16:57:10,142 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:57:10,142 INFO  L471      AbstractCegarLoop]: Abstraction has 127674 states and 136955 transitions.
[2024-11-11 16:57:10,142 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:57:10,142 INFO  L276                IsEmpty]: Start isEmpty. Operand 127674 states and 136955 transitions.
[2024-11-11 16:57:10,149 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 519
[2024-11-11 16:57:10,150 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:57:10,150 INFO  L218           NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 16:57:10,150 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-11 16:57:10,150 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:57:10,150 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:57:10,151 INFO  L85        PathProgramCache]: Analyzing trace with hash 1307422627, now seen corresponding path program 1 times
[2024-11-11 16:57:10,151 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:57:10,151 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460863534]
[2024-11-11 16:57:10,151 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:57:10,151 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:57:10,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:57:10,894 INFO  L134       CoverageAnalysis]: Checked inductivity of 861 backedges. 614 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked.
[2024-11-11 16:57:10,894 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:57:10,894 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460863534]
[2024-11-11 16:57:10,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460863534] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:57:10,894 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:57:10,894 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 16:57:10,895 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334930275]
[2024-11-11 16:57:10,895 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:57:10,895 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:57:10,895 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:57:10,895 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:57:10,896 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:57:10,896 INFO  L87              Difference]: Start difference. First operand 127674 states and 136955 transitions. Second operand  has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:57:14,138 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 16:57:14,139 INFO  L93              Difference]: Finished difference Result 301157 states and 323402 transitions.
[2024-11-11 16:57:14,139 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 16:57:14,139 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 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 518
[2024-11-11 16:57:14,140 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 16:57:14,435 INFO  L225             Difference]: With dead ends: 301157
[2024-11-11 16:57:14,436 INFO  L226             Difference]: Without dead ends: 174236
[2024-11-11 16:57:14,537 INFO  L434           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
[2024-11-11 16:57:14,538 INFO  L435           NwaCegarLoop]: 1297 mSDtfsCounter, 689 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-11 16:57:14,538 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 1305 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-11 16:57:14,710 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 174236 states.
[2024-11-11 16:57:17,186 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 174236 to 168979.
[2024-11-11 16:57:17,295 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 168979 states, 168978 states have (on average 1.064387079974908) internal successors, (179858), 168978 states have internal predecessors, (179858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:57:17,530 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 168979 states to 168979 states and 179858 transitions.
[2024-11-11 16:57:17,532 INFO  L78                 Accepts]: Start accepts. Automaton has 168979 states and 179858 transitions. Word has length 518
[2024-11-11 16:57:17,532 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 16:57:17,533 INFO  L471      AbstractCegarLoop]: Abstraction has 168979 states and 179858 transitions.
[2024-11-11 16:57:17,533 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-11 16:57:17,533 INFO  L276                IsEmpty]: Start isEmpty. Operand 168979 states and 179858 transitions.
[2024-11-11 16:57:17,543 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 541
[2024-11-11 16:57:17,544 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 16:57:17,544 INFO  L218           NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 16:57:17,544 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-11 16:57:17,545 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 16:57:17,545 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 16:57:17,545 INFO  L85        PathProgramCache]: Analyzing trace with hash 812629498, now seen corresponding path program 1 times
[2024-11-11 16:57:17,545 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 16:57:17,545 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808978274]
[2024-11-11 16:57:17,546 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 16:57:17,546 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 16:57:17,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 16:57:17,902 INFO  L134       CoverageAnalysis]: Checked inductivity of 611 backedges. 487 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-11 16:57:17,902 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 16:57:17,905 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808978274]
[2024-11-11 16:57:17,905 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808978274] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 16:57:17,905 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 16:57:17,905 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 16:57:17,905 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137244821]
[2024-11-11 16:57:17,905 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 16:57:17,906 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 16:57:17,906 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 16:57:17,906 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 16:57:17,906 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 16:57:17,907 INFO  L87              Difference]: Start difference. First operand 168979 states and 179858 transitions. Second operand  has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)