./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Dubois-065.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/xcsp/Dubois-065.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 c9789ed3fb7c723a015b476139983e23c0e32cb4759acdfba93a51a8c26be62c
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 15:22:41,837 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 15:22:41,872 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 15:22:41,875 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 15:22:41,875 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 15:22:41,890 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 15:22:41,890 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 15:22:41,890 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 15:22:41,891 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 15:22:41,891 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 15:22:41,891 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 15:22:41,892 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 15:22:41,892 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 15:22:41,893 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 15:22:41,893 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 15:22:41,893 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 15:22:41,893 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 15:22:41,894 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 15:22:41,894 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 15:22:41,894 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 15:22:41,894 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 15:22:41,895 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 15:22:41,895 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 15:22:41,895 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 15:22:41,895 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 15:22:41,896 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 15:22:41,896 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 15:22:41,896 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 15:22:41,896 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 15:22:41,897 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 15:22:41,897 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 15:22:41,897 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 15:22:41,897 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 15:22:41,897 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 15:22:41,898 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 15:22:41,898 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 15:22:41,898 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 15:22:41,898 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 15:22:41,898 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 15:22:41,899 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 15:22:41,899 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 15:22:41,899 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 15:22:41,900 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 -> c9789ed3fb7c723a015b476139983e23c0e32cb4759acdfba93a51a8c26be62c
[2024-11-18 15:22:42,126 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 15:22:42,147 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 15:22:42,150 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 15:22:42,151 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 15:22:42,152 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 15:22:42,153 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Dubois-065.c
[2024-11-18 15:22:43,600 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 15:22:43,817 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 15:22:43,818 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-065.c
[2024-11-18 15:22:43,842 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84a8e446/f3130e1565de45cb9c702db0e0895868/FLAG1d73102a0
[2024-11-18 15:22:43,857 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84a8e446/f3130e1565de45cb9c702db0e0895868
[2024-11-18 15:22:43,861 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 15:22:43,863 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 15:22:43,864 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 15:22:43,865 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 15:22:43,870 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 15:22:43,870 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:22:43" (1/1) ...
[2024-11-18 15:22:43,871 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326cc757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:43, skipping insertion in model container
[2024-11-18 15:22:43,871 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:22:43" (1/1) ...
[2024-11-18 15:22:43,936 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 15:22:44,363 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/xcsp/Dubois-065.c[46320,46333]
[2024-11-18 15:22:44,408 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 15:22:44,416 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 15:22:44,498 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/xcsp/Dubois-065.c[46320,46333]
[2024-11-18 15:22:44,518 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 15:22:44,636 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 15:22:44,637 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44 WrapperNode
[2024-11-18 15:22:44,640 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 15:22:44,641 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 15:22:44,642 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 15:22:44,642 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 15:22:44,649 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:44,794 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:45,371 INFO  L138                Inliner]: procedures = 13, calls = 527, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12951
[2024-11-18 15:22:45,371 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 15:22:45,372 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 15:22:45,372 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 15:22:45,372 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 15:22:45,382 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:45,382 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:45,509 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:45,653 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-18 15:22:45,653 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:45,653 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:45,813 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:45,936 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:45,968 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:46,003 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:46,142 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 15:22:46,144 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 15:22:46,145 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 15:22:46,145 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 15:22:46,146 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (1/1) ...
[2024-11-18 15:22:46,156 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 15:22:46,181 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:22:46,196 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-18 15:22:46,208 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-18 15:22:46,266 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 15:22:46,267 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 15:22:46,267 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 15:22:46,267 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 15:22:46,267 INFO  L130     BoogieDeclarations]: Found specification of procedure assume
[2024-11-18 15:22:46,267 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume
[2024-11-18 15:22:46,759 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 15:22:46,761 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 15:23:00,537 INFO  L?                        ?]: Removed 4490 outVars from TransFormulas that were not future-live.
[2024-11-18 15:23:00,537 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 15:23:00,615 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 15:23:00,616 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-18 15:23:00,616 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:23:00 BoogieIcfgContainer
[2024-11-18 15:23:00,616 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 15:23:00,618 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 15:23:00,618 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 15:23:00,620 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 15:23:00,620 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:22:43" (1/3) ...
[2024-11-18 15:23:00,621 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea8d9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:23:00, skipping insertion in model container
[2024-11-18 15:23:00,621 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:22:44" (2/3) ...
[2024-11-18 15:23:00,621 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea8d9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:23:00, skipping insertion in model container
[2024-11-18 15:23:00,621 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:23:00" (3/3) ...
[2024-11-18 15:23:00,622 INFO  L112   eAbstractionObserver]: Analyzing ICFG Dubois-065.c
[2024-11-18 15:23:00,633 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 15:23:00,634 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 15:23:00,756 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 15:23:00,761 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;@5951cecc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 15:23:00,761 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 15:23:00,775 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5146 states, 4623 states have (on average 1.6190785204412719) internal successors, (7485), 4624 states have internal predecessors, (7485), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-18 15:23:01,077 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4359
[2024-11-18 15:23:01,077 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:01,079 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 15:23:01,080 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:01,084 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:01,086 INFO  L85        PathProgramCache]: Analyzing trace with hash 650817423, now seen corresponding path program 1 times
[2024-11-18 15:23:01,092 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:01,093 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239527722]
[2024-11-18 15:23:01,093 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:01,094 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:01,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:04,350 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 0 proven. 1038 refuted. 0 times theorem prover too weak. 538722 trivial. 0 not checked.
[2024-11-18 15:23:04,351 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:04,351 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239527722]
[2024-11-18 15:23:04,352 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239527722] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:23:04,352 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765980151]
[2024-11-18 15:23:04,353 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:04,354 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:04,354 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:04,356 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)
[2024-11-18 15:23:04,357 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-18 15:23:05,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:05,938 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9516 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-18 15:23:06,014 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:23:06,251 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1038 proven. 0 refuted. 0 times theorem prover too weak. 538722 trivial. 0 not checked.
[2024-11-18 15:23:06,251 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:23:06,252 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [765980151] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:06,252 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:23:06,253 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-18 15:23:06,255 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508892086]
[2024-11-18 15:23:06,256 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:06,265 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-18 15:23:06,265 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:06,291 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-18 15:23:06,292 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 15:23:06,304 INFO  L87              Difference]: Start difference. First operand  has 5146 states, 4623 states have (on average 1.6190785204412719) internal successors, (7485), 4624 states have internal predecessors, (7485), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520) Second operand  has 2 states, 2 states have (on average 881.5) internal successors, (1763), 2 states have internal predecessors, (1763), 2 states have call successors, (520), 2 states have call predecessors, (520), 1 states have return successors, (520), 1 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:06,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:06,698 INFO  L93              Difference]: Finished difference Result 10286 states and 17564 transitions.
[2024-11-18 15:23:06,699 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-18 15:23:06,702 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 881.5) internal successors, (1763), 2 states have internal predecessors, (1763), 2 states have call successors, (520), 2 states have call predecessors, (520), 1 states have return successors, (520), 1 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4358
[2024-11-18 15:23:06,702 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:06,738 INFO  L225             Difference]: With dead ends: 10286
[2024-11-18 15:23:06,738 INFO  L226             Difference]: Without dead ends: 5143
[2024-11-18 15:23:06,757 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4359 GetRequests, 4359 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 15:23:06,761 INFO  L432           NwaCegarLoop]: 8521 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8521 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:06,761 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8521 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:23:06,785 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5143 states.
[2024-11-18 15:23:07,054 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5143 to 5143.
[2024-11-18 15:23:07,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5143 states, 4621 states have (on average 1.6189136550530188) internal successors, (7481), 4621 states have internal predecessors, (7481), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-18 15:23:07,078 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 8521 transitions.
[2024-11-18 15:23:07,084 INFO  L78                 Accepts]: Start accepts. Automaton has 5143 states and 8521 transitions. Word has length 4358
[2024-11-18 15:23:07,086 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:07,086 INFO  L471      AbstractCegarLoop]: Abstraction has 5143 states and 8521 transitions.
[2024-11-18 15:23:07,088 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 881.5) internal successors, (1763), 2 states have internal predecessors, (1763), 2 states have call successors, (520), 2 states have call predecessors, (520), 1 states have return successors, (520), 1 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:07,088 INFO  L276                IsEmpty]: Start isEmpty. Operand 5143 states and 8521 transitions.
[2024-11-18 15:23:07,264 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4359
[2024-11-18 15:23:07,264 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:07,266 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-18 15:23:07,291 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-18 15:23:07,467 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-18 15:23:07,468 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:07,468 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:07,469 INFO  L85        PathProgramCache]: Analyzing trace with hash -469668593, now seen corresponding path program 1 times
[2024-11-18 15:23:07,470 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:07,470 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427646792]
[2024-11-18 15:23:07,470 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:07,470 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:07,724 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:13,268 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-18 15:23:13,272 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:13,272 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427646792]
[2024-11-18 15:23:13,272 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427646792] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:23:13,273 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409725032]
[2024-11-18 15:23:13,273 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:13,274 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:13,274 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:13,275 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)
[2024-11-18 15:23:13,277 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-18 15:23:14,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:14,999 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9516 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-18 15:23:15,129 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:23:15,471 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 197601 proven. 0 refuted. 0 times theorem prover too weak. 342159 trivial. 0 not checked.
[2024-11-18 15:23:15,475 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:23:15,475 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409725032] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:15,476 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:23:15,477 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8
[2024-11-18 15:23:15,477 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695741297]
[2024-11-18 15:23:15,478 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:15,485 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 15:23:15,486 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:15,492 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 15:23:15,492 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 15:23:15,497 INFO  L87              Difference]: Start difference. First operand 5143 states and 8521 transitions. Second operand  has 6 states, 5 states have (on average 353.4) internal successors, (1767), 6 states have internal predecessors, (1767), 3 states have call successors, (520), 2 states have call predecessors, (520), 3 states have return successors, (520), 2 states have call predecessors, (520), 3 states have call successors, (520)
[2024-11-18 15:23:19,401 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:19,402 INFO  L93              Difference]: Finished difference Result 9495 states and 15727 transitions.
[2024-11-18 15:23:19,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 15:23:19,407 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 353.4) internal successors, (1767), 6 states have internal predecessors, (1767), 3 states have call successors, (520), 2 states have call predecessors, (520), 3 states have return successors, (520), 2 states have call predecessors, (520), 3 states have call successors, (520) Word has length 4358
[2024-11-18 15:23:19,416 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:19,436 INFO  L225             Difference]: With dead ends: 9495
[2024-11-18 15:23:19,437 INFO  L226             Difference]: Without dead ends: 5145
[2024-11-18 15:23:19,445 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4363 GetRequests, 4357 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 15:23:19,447 INFO  L432           NwaCegarLoop]: 7997 mSDtfsCounter, 1 mSDsluCounter, 30935 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38932 SdHoareTripleChecker+Invalid, 3670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:19,447 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38932 Invalid, 3670 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2024-11-18 15:23:19,455 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5145 states.
[2024-11-18 15:23:19,657 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5145 to 5145.
[2024-11-18 15:23:19,665 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5145 states, 4623 states have (on average 1.618645900930132) internal successors, (7483), 4623 states have internal predecessors, (7483), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-18 15:23:19,677 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 8523 transitions.
[2024-11-18 15:23:19,681 INFO  L78                 Accepts]: Start accepts. Automaton has 5145 states and 8523 transitions. Word has length 4358
[2024-11-18 15:23:19,687 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:19,687 INFO  L471      AbstractCegarLoop]: Abstraction has 5145 states and 8523 transitions.
[2024-11-18 15:23:19,688 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 353.4) internal successors, (1767), 6 states have internal predecessors, (1767), 3 states have call successors, (520), 2 states have call predecessors, (520), 3 states have return successors, (520), 2 states have call predecessors, (520), 3 states have call successors, (520)
[2024-11-18 15:23:19,688 INFO  L276                IsEmpty]: Start isEmpty. Operand 5145 states and 8523 transitions.
[2024-11-18 15:23:19,767 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4360
[2024-11-18 15:23:19,767 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:19,769 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-18 15:23:19,825 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-18 15:23:19,970 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,SelfDestructingSolverStorable1
[2024-11-18 15:23:19,971 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:19,972 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:19,973 INFO  L85        PathProgramCache]: Analyzing trace with hash -1906132276, now seen corresponding path program 1 times
[2024-11-18 15:23:19,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:19,975 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984060097]
[2024-11-18 15:23:19,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:19,977 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:20,179 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:23,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-18 15:23:23,034 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:23,034 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984060097]
[2024-11-18 15:23:23,038 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984060097] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:23:23,038 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640998148]
[2024-11-18 15:23:23,039 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:23,039 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:23,039 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:23,041 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)
[2024-11-18 15:23:23,043 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-18 15:23:24,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:24,478 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9519 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-18 15:23:24,564 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:23:24,736 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 197500 proven. 0 refuted. 0 times theorem prover too weak. 342260 trivial. 0 not checked.
[2024-11-18 15:23:24,740 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:23:24,740 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640998148] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:24,740 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:23:24,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8
[2024-11-18 15:23:24,741 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489106122]
[2024-11-18 15:23:24,741 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:24,744 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 15:23:24,747 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:24,753 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 15:23:24,753 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 15:23:24,754 INFO  L87              Difference]: Start difference. First operand 5145 states and 8523 transitions. Second operand  has 4 states, 4 states have (on average 441.25) internal successors, (1765), 4 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:24,973 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:24,973 INFO  L93              Difference]: Finished difference Result 9515 states and 15757 transitions.
[2024-11-18 15:23:24,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 15:23:24,975 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 441.25) internal successors, (1765), 4 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4359
[2024-11-18 15:23:24,978 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:25,015 INFO  L225             Difference]: With dead ends: 9515
[2024-11-18 15:23:25,015 INFO  L226             Difference]: Without dead ends: 5154
[2024-11-18 15:23:25,030 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4364 GetRequests, 4358 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 15:23:25,032 INFO  L432           NwaCegarLoop]: 8517 mSDtfsCounter, 9 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25538 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:25,033 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25538 Invalid, 25 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:23:25,048 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5154 states.
[2024-11-18 15:23:25,436 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5154 to 5154.
[2024-11-18 15:23:25,453 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5154 states, 4632 states have (on average 1.618307426597582) internal successors, (7496), 4632 states have internal predecessors, (7496), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-18 15:23:25,473 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 8536 transitions.
[2024-11-18 15:23:25,476 INFO  L78                 Accepts]: Start accepts. Automaton has 5154 states and 8536 transitions. Word has length 4359
[2024-11-18 15:23:25,479 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:25,483 INFO  L471      AbstractCegarLoop]: Abstraction has 5154 states and 8536 transitions.
[2024-11-18 15:23:25,484 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 441.25) internal successors, (1765), 4 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:25,484 INFO  L276                IsEmpty]: Start isEmpty. Operand 5154 states and 8536 transitions.
[2024-11-18 15:23:25,740 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4360
[2024-11-18 15:23:25,744 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:25,746 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-18 15:23:25,802 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-18 15:23:25,949 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:25,951 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:25,952 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:25,953 INFO  L85        PathProgramCache]: Analyzing trace with hash 2024112806, now seen corresponding path program 1 times
[2024-11-18 15:23:25,953 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:25,955 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168892379]
[2024-11-18 15:23:25,955 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:25,956 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:26,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:30,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-18 15:23:30,288 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:30,289 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168892379]
[2024-11-18 15:23:30,289 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168892379] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:23:30,289 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633657153]
[2024-11-18 15:23:30,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:30,290 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:30,290 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:30,291 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)
[2024-11-18 15:23:30,292 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-18 15:23:31,740 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:31,781 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9519 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-18 15:23:31,890 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:23:32,039 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 197500 proven. 0 refuted. 0 times theorem prover too weak. 342260 trivial. 0 not checked.
[2024-11-18 15:23:32,040 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:23:32,040 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [633657153] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:32,040 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:23:32,041 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-18 15:23:32,041 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022237117]
[2024-11-18 15:23:32,041 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:32,048 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 15:23:32,053 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:32,056 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 15:23:32,061 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-18 15:23:32,062 INFO  L87              Difference]: Start difference. First operand 5154 states and 8536 transitions. Second operand  has 3 states, 3 states have (on average 588.3333333333334) internal successors, (1765), 3 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:32,186 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:32,187 INFO  L93              Difference]: Finished difference Result 9512 states and 15750 transitions.
[2024-11-18 15:23:32,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 15:23:32,188 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 588.3333333333334) internal successors, (1765), 3 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4359
[2024-11-18 15:23:32,191 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:32,212 INFO  L225             Difference]: With dead ends: 9512
[2024-11-18 15:23:32,213 INFO  L226             Difference]: Without dead ends: 5155
[2024-11-18 15:23:32,221 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4364 GetRequests, 4359 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-18 15:23:32,222 INFO  L432           NwaCegarLoop]: 8520 mSDtfsCounter, 0 mSDsluCounter, 8511 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17031 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:32,223 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17031 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:23:32,230 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5155 states.
[2024-11-18 15:23:32,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5155 to 5155.
[2024-11-18 15:23:32,476 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5155 states, 4633 states have (on average 1.6179581264839198) internal successors, (7496), 4633 states have internal predecessors, (7496), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-18 15:23:32,486 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 8536 transitions.
[2024-11-18 15:23:32,488 INFO  L78                 Accepts]: Start accepts. Automaton has 5155 states and 8536 transitions. Word has length 4359
[2024-11-18 15:23:32,490 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:32,490 INFO  L471      AbstractCegarLoop]: Abstraction has 5155 states and 8536 transitions.
[2024-11-18 15:23:32,491 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 588.3333333333334) internal successors, (1765), 3 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:32,491 INFO  L276                IsEmpty]: Start isEmpty. Operand 5155 states and 8536 transitions.
[2024-11-18 15:23:32,650 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4361
[2024-11-18 15:23:32,651 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:32,652 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-18 15:23:32,683 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-18 15:23:32,853 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:32,853 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:32,854 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:32,856 INFO  L85        PathProgramCache]: Analyzing trace with hash -583771831, now seen corresponding path program 1 times
[2024-11-18 15:23:32,856 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:32,856 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388507412]
[2024-11-18 15:23:32,856 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:32,856 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:33,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:36,537 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-18 15:23:36,537 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:36,537 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388507412]
[2024-11-18 15:23:36,537 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388507412] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:23:36,538 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448753027]
[2024-11-18 15:23:36,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:36,539 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:36,539 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:36,540 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)
[2024-11-18 15:23:36,542 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-18 15:23:38,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:38,106 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9522 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-18 15:23:38,145 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:23:38,296 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1557 proven. 0 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-18 15:23:38,296 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:23:38,297 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [448753027] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:38,297 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:23:38,299 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8
[2024-11-18 15:23:38,299 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465332820]
[2024-11-18 15:23:38,299 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:38,303 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 15:23:38,303 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:38,305 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 15:23:38,305 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 15:23:38,306 INFO  L87              Difference]: Start difference. First operand 5155 states and 8536 transitions. Second operand  has 6 states, 5 states have (on average 353.2) internal successors, (1766), 6 states have internal predecessors, (1766), 2 states have call successors, (520), 1 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:40,299 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:40,299 INFO  L93              Difference]: Finished difference Result 5167 states and 8550 transitions.
[2024-11-18 15:23:40,299 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 15:23:40,300 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 353.2) internal successors, (1766), 6 states have internal predecessors, (1766), 2 states have call successors, (520), 1 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4360
[2024-11-18 15:23:40,308 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:40,324 INFO  L225             Difference]: With dead ends: 5167
[2024-11-18 15:23:40,324 INFO  L226             Difference]: Without dead ends: 5157
[2024-11-18 15:23:40,326 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4365 GetRequests, 4359 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 15:23:40,326 INFO  L432           NwaCegarLoop]: 7997 mSDtfsCounter, 1 mSDsluCounter, 30935 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38932 SdHoareTripleChecker+Invalid, 3670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:40,327 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38932 Invalid, 3670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-18 15:23:40,331 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5157 states.
[2024-11-18 15:23:40,534 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5157 to 5157.
[2024-11-18 15:23:40,540 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5157 states, 4635 states have (on average 1.6176914778856526) internal successors, (7498), 4635 states have internal predecessors, (7498), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-18 15:23:40,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 8538 transitions.
[2024-11-18 15:23:40,553 INFO  L78                 Accepts]: Start accepts. Automaton has 5157 states and 8538 transitions. Word has length 4360
[2024-11-18 15:23:40,557 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:40,557 INFO  L471      AbstractCegarLoop]: Abstraction has 5157 states and 8538 transitions.
[2024-11-18 15:23:40,558 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 353.2) internal successors, (1766), 6 states have internal predecessors, (1766), 2 states have call successors, (520), 1 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:40,558 INFO  L276                IsEmpty]: Start isEmpty. Operand 5157 states and 8538 transitions.
[2024-11-18 15:23:40,688 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4362
[2024-11-18 15:23:40,688 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:40,690 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-18 15:23:40,717 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-18 15:23:40,890 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:40,892 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:40,892 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:40,894 INFO  L85        PathProgramCache]: Analyzing trace with hash -1148394790, now seen corresponding path program 1 times
[2024-11-18 15:23:40,894 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:40,894 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026825063]
[2024-11-18 15:23:40,895 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:40,895 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:41,053 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:44,331 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-18 15:23:44,331 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:44,331 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026825063]
[2024-11-18 15:23:44,331 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026825063] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:23:44,331 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168163592]
[2024-11-18 15:23:44,333 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:44,333 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:44,333 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:44,334 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 15:23:44,335 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-18 15:23:45,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:45,691 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9525 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-18 15:23:45,727 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:23:45,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 2076 proven. 0 refuted. 0 times theorem prover too weak. 537684 trivial. 0 not checked.
[2024-11-18 15:23:45,894 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:23:45,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [168163592] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:45,894 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:23:45,895 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8
[2024-11-18 15:23:45,895 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479709165]
[2024-11-18 15:23:45,895 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:45,898 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 15:23:45,898 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:45,900 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 15:23:45,900 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 15:23:45,901 INFO  L87              Difference]: Start difference. First operand 5157 states and 8538 transitions. Second operand  has 4 states, 4 states have (on average 441.75) internal successors, (1767), 4 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:45,976 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:45,976 INFO  L93              Difference]: Finished difference Result 5187 states and 8580 transitions.
[2024-11-18 15:23:45,976 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 15:23:45,977 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 441.75) internal successors, (1767), 4 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4361
[2024-11-18 15:23:45,982 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:45,999 INFO  L225             Difference]: With dead ends: 5187
[2024-11-18 15:23:45,999 INFO  L226             Difference]: Without dead ends: 5166
[2024-11-18 15:23:46,001 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4366 GetRequests, 4360 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 15:23:46,001 INFO  L432           NwaCegarLoop]: 8517 mSDtfsCounter, 9 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25538 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:46,005 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25538 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:23:46,010 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5166 states.
[2024-11-18 15:23:46,164 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166.
[2024-11-18 15:23:46,170 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5166 states, 4644 states have (on average 1.6173557278208441) internal successors, (7511), 4644 states have internal predecessors, (7511), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-18 15:23:46,177 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 8551 transitions.
[2024-11-18 15:23:46,179 INFO  L78                 Accepts]: Start accepts. Automaton has 5166 states and 8551 transitions. Word has length 4361
[2024-11-18 15:23:46,183 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:46,183 INFO  L471      AbstractCegarLoop]: Abstraction has 5166 states and 8551 transitions.
[2024-11-18 15:23:46,184 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 441.75) internal successors, (1767), 4 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:46,184 INFO  L276                IsEmpty]: Start isEmpty. Operand 5166 states and 8551 transitions.
[2024-11-18 15:23:46,384 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4362
[2024-11-18 15:23:46,384 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:46,386 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-18 15:23:46,413 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-18 15:23:46,587 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:46,588 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:46,588 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:46,589 INFO  L85        PathProgramCache]: Analyzing trace with hash 1716649396, now seen corresponding path program 1 times
[2024-11-18 15:23:46,589 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:46,589 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771510981]
[2024-11-18 15:23:46,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:46,590 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:46,840 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:49,760 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-18 15:23:49,761 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:49,761 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771510981]
[2024-11-18 15:23:49,761 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771510981] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:23:49,761 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611923828]
[2024-11-18 15:23:49,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:49,762 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:49,762 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:49,763 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 15:23:49,764 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-18 15:23:51,136 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:51,172 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9525 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-18 15:23:51,208 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:23:51,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 2076 proven. 0 refuted. 0 times theorem prover too weak. 537684 trivial. 0 not checked.
[2024-11-18 15:23:51,311 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:23:51,311 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [611923828] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:51,311 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:23:51,312 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-18 15:23:51,312 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829724765]
[2024-11-18 15:23:51,312 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:51,315 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 15:23:51,315 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:51,317 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 15:23:51,317 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-18 15:23:51,318 INFO  L87              Difference]: Start difference. First operand 5166 states and 8551 transitions. Second operand  has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:51,369 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:51,370 INFO  L93              Difference]: Finished difference Result 5184 states and 8573 transitions.
[2024-11-18 15:23:51,370 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 15:23:51,371 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4361
[2024-11-18 15:23:51,376 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:51,386 INFO  L225             Difference]: With dead ends: 5184
[2024-11-18 15:23:51,387 INFO  L226             Difference]: Without dead ends: 5167
[2024-11-18 15:23:51,389 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4366 GetRequests, 4361 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-18 15:23:51,390 INFO  L432           NwaCegarLoop]: 8520 mSDtfsCounter, 0 mSDsluCounter, 8511 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17031 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:51,390 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17031 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:23:51,395 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5167 states.
[2024-11-18 15:23:51,594 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 5167.
[2024-11-18 15:23:51,599 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 4645 states have (on average 1.6170075349838535) internal successors, (7511), 4645 states have internal predecessors, (7511), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-18 15:23:51,605 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8551 transitions.
[2024-11-18 15:23:51,606 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8551 transitions. Word has length 4361
[2024-11-18 15:23:51,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:51,609 INFO  L471      AbstractCegarLoop]: Abstraction has 5167 states and 8551 transitions.
[2024-11-18 15:23:51,609 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:23:51,610 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8551 transitions.
[2024-11-18 15:23:51,681 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4363
[2024-11-18 15:23:51,682 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:51,683 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-18 15:23:51,709 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-18 15:23:51,884 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:51,885 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:51,885 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:51,886 INFO  L85        PathProgramCache]: Analyzing trace with hash 248689411, now seen corresponding path program 1 times
[2024-11-18 15:23:51,886 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:51,886 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642393797]
[2024-11-18 15:23:51,886 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:51,886 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:52,038 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:55,018 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-18 15:23:55,019 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:55,019 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642393797]
[2024-11-18 15:23:55,019 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642393797] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:23:55,019 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995965643]
[2024-11-18 15:23:55,020 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:55,020 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:55,020 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:55,022 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 15:23:55,023 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-18 15:23:56,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:56,493 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9528 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-18 15:23:56,532 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:24:00,297 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 2076 proven. 0 refuted. 0 times theorem prover too weak. 537684 trivial. 0 not checked.
[2024-11-18 15:24:00,298 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:24:00,298 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995965643] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:24:00,298 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:24:00,299 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-18 15:24:00,299 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741271995]
[2024-11-18 15:24:00,299 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:24:00,301 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 15:24:00,302 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:24:00,303 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 15:24:00,304 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-18 15:24:00,304 INFO  L87              Difference]: Start difference. First operand 5167 states and 8551 transitions. Second operand  has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 3 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 3 states have call predecessors, (520), 3 states have call successors, (520)
[2024-11-18 15:24:00,444 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:24:00,444 INFO  L93              Difference]: Finished difference Result 14262 states and 23603 transitions.
[2024-11-18 15:24:00,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 15:24:00,446 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 3 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 3 states have call predecessors, (520), 3 states have call successors, (520) Word has length 4362
[2024-11-18 15:24:00,449 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:24:00,469 INFO  L225             Difference]: With dead ends: 14262
[2024-11-18 15:24:00,470 INFO  L226             Difference]: Without dead ends: 9706
[2024-11-18 15:24:00,477 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4367 GetRequests, 4362 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-18 15:24:00,478 INFO  L432           NwaCegarLoop]: 12521 mSDtfsCounter, 5707 mSDsluCounter, 8547 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5707 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:24:00,479 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [5707 Valid, 21068 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:24:00,487 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9706 states.
[2024-11-18 15:24:00,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9706 to 9706.
[2024-11-18 15:24:00,740 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9706 states, 9055 states have (on average 1.6310325786858089) internal successors, (14769), 9055 states have internal predecessors, (14769), 649 states have call successors, (649), 1 states have call predecessors, (649), 1 states have return successors, (649), 649 states have call predecessors, (649), 649 states have call successors, (649)
[2024-11-18 15:24:00,753 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9706 states to 9706 states and 16067 transitions.
[2024-11-18 15:24:00,756 INFO  L78                 Accepts]: Start accepts. Automaton has 9706 states and 16067 transitions. Word has length 4362
[2024-11-18 15:24:00,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:24:00,759 INFO  L471      AbstractCegarLoop]: Abstraction has 9706 states and 16067 transitions.
[2024-11-18 15:24:00,759 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 3 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 3 states have call predecessors, (520), 3 states have call successors, (520)
[2024-11-18 15:24:00,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 9706 states and 16067 transitions.
[2024-11-18 15:24:00,889 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4363
[2024-11-18 15:24:00,890 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:24:00,891 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-18 15:24:00,916 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-18 15:24:01,092 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-11-18 15:24:01,092 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:24:01,093 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:24:01,094 INFO  L85        PathProgramCache]: Analyzing trace with hash 324884239, now seen corresponding path program 1 times
[2024-11-18 15:24:01,094 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:24:01,094 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348157157]
[2024-11-18 15:24:01,094 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:24:01,094 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:24:01,263 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:24:04,758 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-18 15:24:04,759 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:24:04,759 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348157157]
[2024-11-18 15:24:04,759 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348157157] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:24:04,759 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476373562]
[2024-11-18 15:24:04,760 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:24:04,760 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:24:04,764 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:24:04,769 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 15:24:04,773 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-18 15:24:06,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:24:06,148 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9528 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-18 15:24:06,182 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:24:06,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 2076 proven. 0 refuted. 0 times theorem prover too weak. 537684 trivial. 0 not checked.
[2024-11-18 15:24:06,531 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:24:06,531 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476373562] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:24:06,531 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:24:06,532 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8
[2024-11-18 15:24:06,532 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684436568]
[2024-11-18 15:24:06,532 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:24:06,535 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 15:24:06,535 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:24:06,537 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 15:24:06,537 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 15:24:06,537 INFO  L87              Difference]: Start difference. First operand 9706 states and 16067 transitions. Second operand  has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:24:06,627 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:24:06,627 INFO  L93              Difference]: Finished difference Result 9774 states and 16168 transitions.
[2024-11-18 15:24:06,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 15:24:06,628 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4362
[2024-11-18 15:24:06,637 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:24:06,653 INFO  L225             Difference]: With dead ends: 9774
[2024-11-18 15:24:06,653 INFO  L226             Difference]: Without dead ends: 9723
[2024-11-18 15:24:06,656 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4367 GetRequests, 4361 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-18 15:24:06,658 INFO  L432           NwaCegarLoop]: 8517 mSDtfsCounter, 9 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25538 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:24:06,659 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25538 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:24:06,665 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9723 states.
[2024-11-18 15:24:06,896 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9723 to 9723.
[2024-11-18 15:24:06,905 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9723 states, 9072 states have (on average 1.630731922398589) internal successors, (14794), 9072 states have internal predecessors, (14794), 649 states have call successors, (649), 1 states have call predecessors, (649), 1 states have return successors, (649), 649 states have call predecessors, (649), 649 states have call successors, (649)
[2024-11-18 15:24:06,917 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9723 states to 9723 states and 16092 transitions.
[2024-11-18 15:24:06,920 INFO  L78                 Accepts]: Start accepts. Automaton has 9723 states and 16092 transitions. Word has length 4362
[2024-11-18 15:24:06,922 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:24:06,922 INFO  L471      AbstractCegarLoop]: Abstraction has 9723 states and 16092 transitions.
[2024-11-18 15:24:06,923 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-18 15:24:06,923 INFO  L276                IsEmpty]: Start isEmpty. Operand 9723 states and 16092 transitions.
[2024-11-18 15:24:07,064 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4363
[2024-11-18 15:24:07,065 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:24:07,066 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-18 15:24:07,093 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-11-18 15:24:07,267 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:24:07,268 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:24:07,268 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:24:07,269 INFO  L85        PathProgramCache]: Analyzing trace with hash 1308980457, now seen corresponding path program 1 times
[2024-11-18 15:24:07,269 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:24:07,270 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473057625]
[2024-11-18 15:24:07,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:24:07,270 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:24:07,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat