./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/nested-1.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version c7c6ca5d
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-new/nested-1.i -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 3baf312ca85439572472b3c02ed304b3157fa97373d6ada535e5a723c6c0219a
--- Real Ultimate output ---
This is Ultimate 0.2.5-?-c7c6ca5-m
[2024-11-08 14:08:26,877 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 14:08:26,945 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 14:08:26,950 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 14:08:26,952 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 14:08:26,981 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 14:08:26,982 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 14:08:26,982 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 14:08:26,983 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 14:08:26,985 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 14:08:26,985 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 14:08:26,986 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 14:08:26,986 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 14:08:26,986 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 14:08:26,987 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 14:08:26,987 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 14:08:26,987 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 14:08:26,988 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-08 14:08:26,988 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 14:08:26,988 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-08 14:08:26,988 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 14:08:26,993 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 14:08:26,993 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 14:08:26,993 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 14:08:26,993 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 14:08:26,993 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-08 14:08:26,994 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 14:08:26,994 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 14:08:26,994 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 14:08:26,994 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 14:08:26,994 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 14:08:26,995 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 14:08:26,995 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 14:08:26,995 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 14:08:26,995 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 14:08:26,996 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 14:08:26,996 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 14:08:26,996 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 14:08:26,997 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 14:08:26,997 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 14:08:26,997 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 14:08:26,998 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 14:08:26,998 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 -> 3baf312ca85439572472b3c02ed304b3157fa97373d6ada535e5a723c6c0219a
[2024-11-08 14:08:27,235 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 14:08:27,258 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 14:08:27,260 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 14:08:27,262 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 14:08:27,262 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 14:08:27,263 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-new/nested-1.i
[2024-11-08 14:08:28,647 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 14:08:28,832 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 14:08:28,832 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/nested-1.i
[2024-11-08 14:08:28,840 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e1c213d/0e6f0360954943cabe9270fc482574ee/FLAGee1ca03cb
[2024-11-08 14:08:28,857 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e1c213d/0e6f0360954943cabe9270fc482574ee
[2024-11-08 14:08:28,861 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 14:08:28,863 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 14:08:28,867 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 14:08:28,867 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 14:08:28,872 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 14:08:28,873 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:08:28" (1/1) ...
[2024-11-08 14:08:28,874 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255fe9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:28, skipping insertion in model container
[2024-11-08 14:08:28,874 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:08:28" (1/1) ...
[2024-11-08 14:08:28,894 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 14:08:29,086 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/loop-new/nested-1.i[891,904]
[2024-11-08 14:08:29,103 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 14:08:29,114 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 14:08:29,127 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/loop-new/nested-1.i[891,904]
[2024-11-08 14:08:29,133 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 14:08:29,151 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 14:08:29,152 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29 WrapperNode
[2024-11-08 14:08:29,152 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 14:08:29,153 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 14:08:29,154 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 14:08:29,154 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 14:08:29,161 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,167 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,185 INFO  L138                Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53
[2024-11-08 14:08:29,186 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 14:08:29,186 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 14:08:29,187 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 14:08:29,187 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 14:08:29,196 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,196 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,197 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,212 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-08 14:08:29,213 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,214 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,216 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,221 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,223 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,224 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,225 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 14:08:29,229 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 14:08:29,230 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 14:08:29,230 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 14:08:29,231 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (1/1) ...
[2024-11-08 14:08:29,236 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 14:08:29,249 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 14:08:29,265 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 14:08:29,282 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 14:08:29,375 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 14:08:29,376 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 14:08:29,376 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 14:08:29,376 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 14:08:29,431 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 14:08:29,433 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 14:08:29,572 INFO  L?                        ?]: Removed 11 outVars from TransFormulas that were not future-live.
[2024-11-08 14:08:29,573 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 14:08:29,586 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 14:08:29,587 INFO  L316             CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-08 14:08:29,587 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:08:29 BoogieIcfgContainer
[2024-11-08 14:08:29,588 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 14:08:29,590 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 14:08:29,592 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 14:08:29,595 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 14:08:29,595 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:08:28" (1/3) ...
[2024-11-08 14:08:29,596 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2a51a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:08:29, skipping insertion in model container
[2024-11-08 14:08:29,596 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:08:29" (2/3) ...
[2024-11-08 14:08:29,597 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2a51a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:08:29, skipping insertion in model container
[2024-11-08 14:08:29,597 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:08:29" (3/3) ...
[2024-11-08 14:08:29,598 INFO  L112   eAbstractionObserver]: Analyzing ICFG nested-1.i
[2024-11-08 14:08:29,619 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 14:08:29,620 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 14:08:29,689 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 14:08:29,697 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;@79198f9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 14:08:29,698 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 14:08:29,702 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:29,707 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 14:08:29,707 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 14:08:29,707 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 14:08:29,708 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 14:08:29,712 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 14:08:29,713 INFO  L85        PathProgramCache]: Analyzing trace with hash 179613278, now seen corresponding path program 1 times
[2024-11-08 14:08:29,723 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 14:08:29,724 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095830454]
[2024-11-08 14:08:29,724 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 14:08:29,724 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 14:08:29,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 14:08:29,955 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 14:08:29,958 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 14:08:29,959 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095830454]
[2024-11-08 14:08:29,959 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095830454] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 14:08:29,960 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 14:08:29,960 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 14:08:29,962 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844465595]
[2024-11-08 14:08:29,962 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 14:08:29,965 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 14:08:29,966 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 14:08:29,985 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 14:08:29,986 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 14:08:29,988 INFO  L87              Difference]: Start difference. First operand  has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 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 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:30,034 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 14:08:30,036 INFO  L93              Difference]: Finished difference Result 33 states and 47 transitions.
[2024-11-08 14:08:30,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 14:08:30,039 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 8
[2024-11-08 14:08:30,040 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 14:08:30,046 INFO  L225             Difference]: With dead ends: 33
[2024-11-08 14:08:30,046 INFO  L226             Difference]: Without dead ends: 16
[2024-11-08 14:08:30,050 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 14:08:30,055 INFO  L432           NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 14:08:30,057 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 35 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 14:08:30,075 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2024-11-08 14:08:30,085 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13.
[2024-11-08 14:08:30,087 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:30,087 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions.
[2024-11-08 14:08:30,089 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8
[2024-11-08 14:08:30,089 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 14:08:30,090 INFO  L471      AbstractCegarLoop]: Abstraction has 13 states and 14 transitions.
[2024-11-08 14:08:30,090 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:30,090 INFO  L276                IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions.
[2024-11-08 14:08:30,091 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-08 14:08:30,091 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 14:08:30,091 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 14:08:30,091 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 14:08:30,091 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 14:08:30,092 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 14:08:30,092 INFO  L85        PathProgramCache]: Analyzing trace with hash 754200042, now seen corresponding path program 1 times
[2024-11-08 14:08:30,092 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 14:08:30,092 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954603689]
[2024-11-08 14:08:30,092 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 14:08:30,093 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 14:08:30,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 14:08:30,169 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 14:08:30,169 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 14:08:30,169 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954603689]
[2024-11-08 14:08:30,170 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954603689] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 14:08:30,170 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 14:08:30,170 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 14:08:30,170 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064931900]
[2024-11-08 14:08:30,170 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 14:08:30,171 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 14:08:30,172 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 14:08:30,172 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 14:08:30,172 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 14:08:30,173 INFO  L87              Difference]: Start difference. First operand 13 states and 14 transitions. Second operand  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:30,200 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 14:08:30,201 INFO  L93              Difference]: Finished difference Result 23 states and 26 transitions.
[2024-11-08 14:08:30,201 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 14:08:30,201 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 11
[2024-11-08 14:08:30,202 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 14:08:30,203 INFO  L225             Difference]: With dead ends: 23
[2024-11-08 14:08:30,203 INFO  L226             Difference]: Without dead ends: 15
[2024-11-08 14:08:30,203 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 14:08:30,204 INFO  L432           NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 14:08:30,205 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 19 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 14:08:30,206 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-11-08 14:08:30,209 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14.
[2024-11-08 14:08:30,209 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:30,209 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions.
[2024-11-08 14:08:30,210 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11
[2024-11-08 14:08:30,210 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 14:08:30,210 INFO  L471      AbstractCegarLoop]: Abstraction has 14 states and 15 transitions.
[2024-11-08 14:08:30,210 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:30,210 INFO  L276                IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions.
[2024-11-08 14:08:30,211 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-08 14:08:30,211 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 14:08:30,211 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 14:08:30,211 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 14:08:30,212 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 14:08:30,212 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 14:08:30,213 INFO  L85        PathProgramCache]: Analyzing trace with hash -902976276, now seen corresponding path program 1 times
[2024-11-08 14:08:30,213 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 14:08:30,213 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330283088]
[2024-11-08 14:08:30,213 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 14:08:30,213 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 14:08:30,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 14:08:30,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 14:08:30,345 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 14:08:30,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330283088]
[2024-11-08 14:08:30,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330283088] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 14:08:30,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953155899]
[2024-11-08 14:08:30,345 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 14:08:30,346 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 14:08:30,346 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 14:08:30,348 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)
[2024-11-08 14:08:30,350 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 14:08:30,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 14:08:30,401 INFO  L255         TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 14:08:30,406 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 14:08:30,509 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 14:08:30,512 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 14:08:30,563 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 14:08:30,566 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [953155899] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 14:08:30,566 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 14:08:30,566 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2024-11-08 14:08:30,567 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417743681]
[2024-11-08 14:08:30,567 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 14:08:30,567 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 14:08:30,567 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 14:08:30,568 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 14:08:30,571 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90
[2024-11-08 14:08:30,572 INFO  L87              Difference]: Start difference. First operand 14 states and 15 transitions. Second operand  has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:30,632 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 14:08:30,634 INFO  L93              Difference]: Finished difference Result 29 states and 34 transitions.
[2024-11-08 14:08:30,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-08 14:08:30,634 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 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 13
[2024-11-08 14:08:30,634 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 14:08:30,635 INFO  L225             Difference]: With dead ends: 29
[2024-11-08 14:08:30,635 INFO  L226             Difference]: Without dead ends: 20
[2024-11-08 14:08:30,635 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132
[2024-11-08 14:08:30,636 INFO  L432           NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 14:08:30,637 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 28 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 14:08:30,639 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2024-11-08 14:08:30,642 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2024-11-08 14:08:30,644 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:30,645 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions.
[2024-11-08 14:08:30,645 INFO  L78                 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13
[2024-11-08 14:08:30,646 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 14:08:30,646 INFO  L471      AbstractCegarLoop]: Abstraction has 20 states and 21 transitions.
[2024-11-08 14:08:30,646 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:30,646 INFO  L276                IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions.
[2024-11-08 14:08:30,647 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-08 14:08:30,647 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 14:08:30,648 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 14:08:30,666 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 14:08:30,849 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 14:08:30,849 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 14:08:30,850 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 14:08:30,850 INFO  L85        PathProgramCache]: Analyzing trace with hash 86791922, now seen corresponding path program 2 times
[2024-11-08 14:08:30,850 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 14:08:30,850 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373051845]
[2024-11-08 14:08:30,850 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 14:08:30,850 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 14:08:30,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 14:08:31,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 14:08:31,043 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 14:08:31,043 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373051845]
[2024-11-08 14:08:31,044 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373051845] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 14:08:31,044 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477649783]
[2024-11-08 14:08:31,045 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 14:08:31,046 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 14:08:31,046 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 14:08:31,047 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)
[2024-11-08 14:08:31,051 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 14:08:31,115 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 14:08:31,116 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 14:08:31,116 INFO  L255         TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 14:08:31,118 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 14:08:31,230 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 14:08:31,230 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 14:08:31,318 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 14:08:31,318 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477649783] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 14:08:31,318 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 14:08:31,319 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19
[2024-11-08 14:08:31,319 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952401506]
[2024-11-08 14:08:31,319 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 14:08:31,320 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-08 14:08:31,320 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 14:08:31,320 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-08 14:08:31,321 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=195, Unknown=0, NotChecked=0, Total=342
[2024-11-08 14:08:31,321 INFO  L87              Difference]: Start difference. First operand 20 states and 21 transitions. Second operand  has 19 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:31,444 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 14:08:31,445 INFO  L93              Difference]: Finished difference Result 47 states and 55 transitions.
[2024-11-08 14:08:31,445 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-08 14:08:31,445 INFO  L78                 Accepts]: Start accepts. Automaton has  has 19 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 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 19
[2024-11-08 14:08:31,446 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 14:08:31,446 INFO  L225             Difference]: With dead ends: 47
[2024-11-08 14:08:31,446 INFO  L226             Difference]: Without dead ends: 32
[2024-11-08 14:08:31,447 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=222, Invalid=330, Unknown=0, NotChecked=0, Total=552
[2024-11-08 14:08:31,448 INFO  L432           NwaCegarLoop]: 10 mSDtfsCounter, 40 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 14:08:31,449 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 19 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 14:08:31,449 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2024-11-08 14:08:31,454 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2024-11-08 14:08:31,454 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 31 states have (on average 1.064516129032258) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:31,455 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions.
[2024-11-08 14:08:31,455 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 19
[2024-11-08 14:08:31,455 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 14:08:31,455 INFO  L471      AbstractCegarLoop]: Abstraction has 32 states and 33 transitions.
[2024-11-08 14:08:31,456 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:31,456 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions.
[2024-11-08 14:08:31,456 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-08 14:08:31,457 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 14:08:31,457 INFO  L215           NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 14:08:31,474 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 14:08:31,657 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,SelfDestructingSolverStorable3
[2024-11-08 14:08:31,658 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 14:08:31,658 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 14:08:31,659 INFO  L85        PathProgramCache]: Analyzing trace with hash -238373506, now seen corresponding path program 3 times
[2024-11-08 14:08:31,659 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 14:08:31,659 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994947934]
[2024-11-08 14:08:31,659 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 14:08:31,659 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 14:08:31,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 14:08:31,795 INFO  L134       CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2024-11-08 14:08:31,796 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 14:08:31,796 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994947934]
[2024-11-08 14:08:31,796 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994947934] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 14:08:31,796 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276111179]
[2024-11-08 14:08:31,796 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 14:08:31,796 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 14:08:31,796 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 14:08:31,798 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)
[2024-11-08 14:08:31,801 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 14:08:31,844 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-08 14:08:31,844 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 14:08:31,844 INFO  L255         TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 14:08:31,846 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 14:08:31,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2024-11-08 14:08:31,961 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 14:08:32,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2024-11-08 14:08:32,029 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [276111179] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 14:08:32,029 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 14:08:32,029 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2024-11-08 14:08:32,029 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475985182]
[2024-11-08 14:08:32,030 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 14:08:32,030 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 14:08:32,030 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 14:08:32,031 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 14:08:32,031 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90
[2024-11-08 14:08:32,031 INFO  L87              Difference]: Start difference. First operand 32 states and 33 transitions. Second operand  has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:32,100 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 14:08:32,100 INFO  L93              Difference]: Finished difference Result 105 states and 111 transitions.
[2024-11-08 14:08:32,101 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-08 14:08:32,101 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31
[2024-11-08 14:08:32,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 14:08:32,102 INFO  L225             Difference]: With dead ends: 105
[2024-11-08 14:08:32,102 INFO  L226             Difference]: Without dead ends: 101
[2024-11-08 14:08:32,102 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132
[2024-11-08 14:08:32,103 INFO  L432           NwaCegarLoop]: 10 mSDtfsCounter, 28 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 14:08:32,103 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 42 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 14:08:32,106 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2024-11-08 14:08:32,125 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2024-11-08 14:08:32,126 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 101 states, 100 states have (on average 1.05) internal successors, (105), 100 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:32,127 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 105 transitions.
[2024-11-08 14:08:32,127 INFO  L78                 Accepts]: Start accepts. Automaton has 101 states and 105 transitions. Word has length 31
[2024-11-08 14:08:32,128 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 14:08:32,128 INFO  L471      AbstractCegarLoop]: Abstraction has 101 states and 105 transitions.
[2024-11-08 14:08:32,128 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:32,128 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 105 transitions.
[2024-11-08 14:08:32,130 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2024-11-08 14:08:32,130 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 14:08:32,131 INFO  L215           NwaCegarLoop]: trace histogram [40, 40, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 14:08:32,149 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 14:08:32,331 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 14:08:32,332 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 14:08:32,332 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 14:08:32,332 INFO  L85        PathProgramCache]: Analyzing trace with hash -112220578, now seen corresponding path program 4 times
[2024-11-08 14:08:32,332 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 14:08:32,333 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310942034]
[2024-11-08 14:08:32,333 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 14:08:32,333 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 14:08:32,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 14:08:32,629 INFO  L134       CoverageAnalysis]: Checked inductivity of 1742 backedges. 0 proven. 1342 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked.
[2024-11-08 14:08:32,629 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 14:08:32,630 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310942034]
[2024-11-08 14:08:32,630 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310942034] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 14:08:32,630 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266459316]
[2024-11-08 14:08:32,630 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-08 14:08:32,630 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 14:08:32,631 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 14:08:32,632 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 14:08:32,634 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 14:08:32,715 INFO  L227   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-08 14:08:32,715 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 14:08:32,716 INFO  L255         TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 14:08:32,723 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 14:08:33,085 INFO  L134       CoverageAnalysis]: Checked inductivity of 1742 backedges. 0 proven. 1342 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked.
[2024-11-08 14:08:33,086 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 14:08:33,280 INFO  L134       CoverageAnalysis]: Checked inductivity of 1742 backedges. 0 proven. 1342 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked.
[2024-11-08 14:08:33,281 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [266459316] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 14:08:33,281 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 14:08:33,281 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19
[2024-11-08 14:08:33,281 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059810847]
[2024-11-08 14:08:33,281 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 14:08:33,282 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-08 14:08:33,282 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 14:08:33,283 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-08 14:08:33,283 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=195, Unknown=0, NotChecked=0, Total=342
[2024-11-08 14:08:33,283 INFO  L87              Difference]: Start difference. First operand 101 states and 105 transitions. Second operand  has 19 states, 19 states have (on average 3.8421052631578947) internal successors, (73), 19 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:33,419 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 14:08:33,420 INFO  L93              Difference]: Finished difference Result 243 states and 258 transitions.
[2024-11-08 14:08:33,420 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-08 14:08:33,420 INFO  L78                 Accepts]: Start accepts. Automaton has  has 19 states, 19 states have (on average 3.8421052631578947) internal successors, (73), 19 states have internal predecessors, (73), 0 states have call successors, (0), 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 100
[2024-11-08 14:08:33,421 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 14:08:33,422 INFO  L225             Difference]: With dead ends: 243
[2024-11-08 14:08:33,422 INFO  L226             Difference]: Without dead ends: 239
[2024-11-08 14:08:33,423 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=222, Invalid=330, Unknown=0, NotChecked=0, Total=552
[2024-11-08 14:08:33,424 INFO  L432           NwaCegarLoop]: 10 mSDtfsCounter, 66 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 14:08:33,424 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 80 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 14:08:33,425 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 239 states.
[2024-11-08 14:08:33,449 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239.
[2024-11-08 14:08:33,450 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 239 states, 238 states have (on average 1.046218487394958) internal successors, (249), 238 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:33,451 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 249 transitions.
[2024-11-08 14:08:33,452 INFO  L78                 Accepts]: Start accepts. Automaton has 239 states and 249 transitions. Word has length 100
[2024-11-08 14:08:33,453 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 14:08:33,454 INFO  L471      AbstractCegarLoop]: Abstraction has 239 states and 249 transitions.
[2024-11-08 14:08:33,454 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 3.8421052631578947) internal successors, (73), 19 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:33,455 INFO  L276                IsEmpty]: Start isEmpty. Operand 239 states and 249 transitions.
[2024-11-08 14:08:33,460 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 239
[2024-11-08 14:08:33,463 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 14:08:33,463 INFO  L215           NwaCegarLoop]: trace histogram [100, 100, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 14:08:33,481 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 14:08:33,667 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 14:08:33,668 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 14:08:33,668 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 14:08:33,668 INFO  L85        PathProgramCache]: Analyzing trace with hash -16999842, now seen corresponding path program 5 times
[2024-11-08 14:08:33,668 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 14:08:33,670 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434707994]
[2024-11-08 14:08:33,670 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 14:08:33,670 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 14:08:33,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 14:08:40,619 INFO  L134       CoverageAnalysis]: Checked inductivity of 11045 backedges. 10917 proven. 119 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-08 14:08:40,620 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 14:08:40,620 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434707994]
[2024-11-08 14:08:40,620 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434707994] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 14:08:40,620 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121688702]
[2024-11-08 14:08:40,620 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-08 14:08:40,621 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 14:08:40,621 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 14:08:40,622 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 14:08:40,624 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 14:08:40,840 INFO  L227   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 81 check-sat command(s)
[2024-11-08 14:08:40,840 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 14:08:40,844 INFO  L255         TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 104 conjuncts are in the unsatisfiable core
[2024-11-08 14:08:40,858 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 14:08:41,285 INFO  L134       CoverageAnalysis]: Checked inductivity of 11045 backedges. 11036 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-08 14:08:41,285 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 14:08:41,285 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [121688702] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 14:08:41,286 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 14:08:41,286 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [104] total 106
[2024-11-08 14:08:41,286 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036843057]
[2024-11-08 14:08:41,286 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 14:08:41,288 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 104 states
[2024-11-08 14:08:41,288 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 14:08:41,291 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants.
[2024-11-08 14:08:41,295 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5261, Invalid=5869, Unknown=0, NotChecked=0, Total=11130
[2024-11-08 14:08:41,295 INFO  L87              Difference]: Start difference. First operand 239 states and 249 transitions. Second operand  has 104 states, 104 states have (on average 2.2884615384615383) internal successors, (238), 104 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:43,025 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 14:08:43,025 INFO  L93              Difference]: Finished difference Result 9779 states and 10239 transitions.
[2024-11-08 14:08:43,026 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. 
[2024-11-08 14:08:43,026 INFO  L78                 Accepts]: Start accepts. Automaton has  has 104 states, 104 states have (on average 2.2884615384615383) internal successors, (238), 104 states have internal predecessors, (238), 0 states have call successors, (0), 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 238
[2024-11-08 14:08:43,027 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 14:08:43,031 INFO  L225             Difference]: With dead ends: 9779
[2024-11-08 14:08:43,031 INFO  L226             Difference]: Without dead ends: 0
[2024-11-08 14:08:43,047 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5261, Invalid=5869, Unknown=0, NotChecked=0, Total=11130
[2024-11-08 14:08:43,048 INFO  L432           NwaCegarLoop]: 379 mSDtfsCounter, 244 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 14:08:43,048 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 2983 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 14:08:43,049 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-08 14:08:43,049 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-08 14:08:43,049 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:43,049 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-08 14:08:43,053 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 238
[2024-11-08 14:08:43,053 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 14:08:43,053 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 14:08:43,054 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 104 states, 104 states have (on average 2.2884615384615383) internal successors, (238), 104 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 14:08:43,054 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-08 14:08:43,054 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-08 14:08:43,057 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 14:08:43,074 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-08 14:08:43,261 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 14:08:43,264 INFO  L407         BasicCegarLoop]: Path program histogram: [5, 1, 1]
[2024-11-08 14:08:43,266 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.