./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label27.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 023d838f
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label27.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 f96201dbe56bea681ee5a8120406abadd3196465b4556f8bef57212ef135429f
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m
[2024-11-09 18:37:46,785 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-09 18:37:46,855 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-09 18:37:46,862 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-09 18:37:46,863 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-09 18:37:46,891 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-09 18:37:46,892 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-09 18:37:46,893 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-09 18:37:46,893 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-09 18:37:46,894 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-09 18:37:46,895 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-09 18:37:46,895 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-09 18:37:46,896 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-09 18:37:46,897 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-09 18:37:46,897 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-09 18:37:46,897 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-09 18:37:46,897 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-09 18:37:46,898 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-09 18:37:46,898 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-09 18:37:46,898 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-09 18:37:46,898 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-09 18:37:46,903 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-09 18:37:46,904 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-09 18:37:46,904 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-09 18:37:46,904 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-09 18:37:46,904 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-09 18:37:46,905 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-09 18:37:46,905 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-09 18:37:46,905 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-09 18:37:46,905 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-09 18:37:46,906 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-09 18:37:46,906 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-09 18:37:46,907 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-09 18:37:46,907 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-09 18:37:46,907 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-09 18:37:46,907 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-09 18:37:46,907 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-09 18:37:46,908 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-09 18:37:46,908 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-09 18:37:46,908 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-09 18:37:46,908 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-09 18:37:46,908 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-09 18:37:46,909 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 -> f96201dbe56bea681ee5a8120406abadd3196465b4556f8bef57212ef135429f
[2024-11-09 18:37:47,152 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-09 18:37:47,177 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-09 18:37:47,181 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-09 18:37:47,182 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-09 18:37:47,182 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-09 18:37:47,184 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label27.c
[2024-11-09 18:37:48,657 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-09 18:37:48,953 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-09 18:37:48,953 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label27.c
[2024-11-09 18:37:48,973 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/394a23d32/63e57639f3474d6995a5a69508b1933b/FLAG607e5cd92
[2024-11-09 18:37:48,989 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/394a23d32/63e57639f3474d6995a5a69508b1933b
[2024-11-09 18:37:48,994 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-09 18:37:48,996 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-09 18:37:48,999 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-09 18:37:48,999 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-09 18:37:49,005 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-09 18:37:49,006 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:37:48" (1/1) ...
[2024-11-09 18:37:49,007 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@154bafd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49, skipping insertion in model container
[2024-11-09 18:37:49,007 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:37:48" (1/1) ...
[2024-11-09 18:37:49,059 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-09 18:37:49,379 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label27.c[16218,16231]
[2024-11-09 18:37:49,428 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-09 18:37:49,439 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-09 18:37:49,559 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label27.c[16218,16231]
[2024-11-09 18:37:49,575 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-09 18:37:49,622 INFO  L204         MainTranslator]: Completed translation
[2024-11-09 18:37:49,623 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49 WrapperNode
[2024-11-09 18:37:49,623 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-09 18:37:49,624 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-09 18:37:49,624 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-09 18:37:49,624 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-09 18:37:49,634 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,656 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,704 INFO  L138                Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668
[2024-11-09 18:37:49,704 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-09 18:37:49,705 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-09 18:37:49,705 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-09 18:37:49,705 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-09 18:37:49,715 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,715 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,724 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,759 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].
[2024-11-09 18:37:49,760 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,760 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,793 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,797 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,804 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,811 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,817 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-09 18:37:49,821 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2024-11-09 18:37:49,821 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2024-11-09 18:37:49,821 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2024-11-09 18:37:49,822 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (1/1) ...
[2024-11-09 18:37:49,828 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-09 18:37:49,840 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-09 18:37:49,856 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)
[2024-11-09 18:37:49,863 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
[2024-11-09 18:37:49,908 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-09 18:37:49,909 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-09 18:37:49,909 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-09 18:37:49,909 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-09 18:37:49,988 INFO  L256             CfgBuilder]: Building ICFG
[2024-11-09 18:37:49,989 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-09 18:37:50,960 INFO  L?                        ?]: Removed 84 outVars from TransFormulas that were not future-live.
[2024-11-09 18:37:50,960 INFO  L307             CfgBuilder]: Performing block encoding
[2024-11-09 18:37:50,981 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-09 18:37:50,982 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-09 18:37:50,984 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:37:50 BoogieIcfgContainer
[2024-11-09 18:37:50,984 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2024-11-09 18:37:50,986 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-09 18:37:50,986 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-09 18:37:50,989 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-09 18:37:50,989 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:37:48" (1/3) ...
[2024-11-09 18:37:50,990 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2a2eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:37:50, skipping insertion in model container
[2024-11-09 18:37:50,990 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:49" (2/3) ...
[2024-11-09 18:37:50,992 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2a2eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:37:50, skipping insertion in model container
[2024-11-09 18:37:50,992 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:37:50" (3/3) ...
[2024-11-09 18:37:50,993 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem02_label27.c
[2024-11-09 18:37:51,010 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-09 18:37:51,011 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-09 18:37:51,076 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-09 18:37:51,082 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;@3954b1ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-09 18:37:51,082 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-09 18:37:51,088 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 230 states, 228 states have (on average 1.6578947368421053) internal successors, (378), 229 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:51,101 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2024-11-09 18:37:51,101 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:51,102 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:51,103 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:51,107 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:51,109 INFO  L85        PathProgramCache]: Analyzing trace with hash -2094560170, now seen corresponding path program 1 times
[2024-11-09 18:37:51,119 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:51,119 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517160126]
[2024-11-09 18:37:51,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:51,120 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:51,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:51,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:51,649 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:51,649 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517160126]
[2024-11-09 18:37:51,651 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517160126] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:51,651 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:51,651 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-09 18:37:51,653 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560754054]
[2024-11-09 18:37:51,653 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:51,657 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:51,658 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:51,682 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:51,683 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:51,686 INFO  L87              Difference]: Start difference. First operand  has 230 states, 228 states have (on average 1.6578947368421053) internal successors, (378), 229 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:52,457 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:52,457 INFO  L93              Difference]: Finished difference Result 606 states and 1043 transitions.
[2024-11-09 18:37:52,458 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:52,460 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97
[2024-11-09 18:37:52,460 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:52,474 INFO  L225             Difference]: With dead ends: 606
[2024-11-09 18:37:52,474 INFO  L226             Difference]: Without dead ends: 312
[2024-11-09 18:37:52,479 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:52,482 INFO  L432           NwaCegarLoop]: 152 mSDtfsCounter, 71 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:52,483 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 175 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-09 18:37:52,497 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 312 states.
[2024-11-09 18:37:52,529 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 310.
[2024-11-09 18:37:52,531 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 310 states, 309 states have (on average 1.3268608414239482) internal successors, (410), 309 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:52,532 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 410 transitions.
[2024-11-09 18:37:52,534 INFO  L78                 Accepts]: Start accepts. Automaton has 310 states and 410 transitions. Word has length 97
[2024-11-09 18:37:52,535 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:52,535 INFO  L471      AbstractCegarLoop]: Abstraction has 310 states and 410 transitions.
[2024-11-09 18:37:52,535 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:52,536 INFO  L276                IsEmpty]: Start isEmpty. Operand 310 states and 410 transitions.
[2024-11-09 18:37:52,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2024-11-09 18:37:52,540 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:52,540 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:52,540 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-09 18:37:52,540 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:52,541 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:52,541 INFO  L85        PathProgramCache]: Analyzing trace with hash -1190015204, now seen corresponding path program 1 times
[2024-11-09 18:37:52,543 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:52,543 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164105161]
[2024-11-09 18:37:52,543 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:52,543 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:52,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:52,767 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:52,767 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:52,767 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164105161]
[2024-11-09 18:37:52,767 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164105161] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:52,768 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:52,768 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-09 18:37:52,768 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300966832]
[2024-11-09 18:37:52,768 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:52,769 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:52,770 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:52,770 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:52,770 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:52,771 INFO  L87              Difference]: Start difference. First operand 310 states and 410 transitions. Second operand  has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:53,242 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:53,243 INFO  L93              Difference]: Finished difference Result 763 states and 1041 transitions.
[2024-11-09 18:37:53,243 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:53,243 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103
[2024-11-09 18:37:53,244 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:53,246 INFO  L225             Difference]: With dead ends: 763
[2024-11-09 18:37:53,246 INFO  L226             Difference]: Without dead ends: 455
[2024-11-09 18:37:53,248 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:53,249 INFO  L432           NwaCegarLoop]: 48 mSDtfsCounter, 91 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:53,249 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 58 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-09 18:37:53,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 455 states.
[2024-11-09 18:37:53,281 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 453.
[2024-11-09 18:37:53,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 453 states, 452 states have (on average 1.3672566371681416) internal successors, (618), 452 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:53,284 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 618 transitions.
[2024-11-09 18:37:53,284 INFO  L78                 Accepts]: Start accepts. Automaton has 453 states and 618 transitions. Word has length 103
[2024-11-09 18:37:53,284 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:53,284 INFO  L471      AbstractCegarLoop]: Abstraction has 453 states and 618 transitions.
[2024-11-09 18:37:53,285 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:53,285 INFO  L276                IsEmpty]: Start isEmpty. Operand 453 states and 618 transitions.
[2024-11-09 18:37:53,287 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-09 18:37:53,287 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:53,288 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:53,288 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-09 18:37:53,288 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:53,289 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:53,289 INFO  L85        PathProgramCache]: Analyzing trace with hash 2076969254, now seen corresponding path program 1 times
[2024-11-09 18:37:53,289 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:53,289 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332416428]
[2024-11-09 18:37:53,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:53,290 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:53,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:53,511 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-09 18:37:53,512 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:53,512 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332416428]
[2024-11-09 18:37:53,512 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332416428] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:53,512 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:53,512 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-09 18:37:53,513 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504655001]
[2024-11-09 18:37:53,513 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:53,513 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:53,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:53,514 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:53,514 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:53,515 INFO  L87              Difference]: Start difference. First operand 453 states and 618 transitions. Second operand  has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:53,942 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:53,942 INFO  L93              Difference]: Finished difference Result 1327 states and 1813 transitions.
[2024-11-09 18:37:53,942 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:53,943 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107
[2024-11-09 18:37:53,944 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:53,948 INFO  L225             Difference]: With dead ends: 1327
[2024-11-09 18:37:53,948 INFO  L226             Difference]: Without dead ends: 876
[2024-11-09 18:37:53,949 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:53,951 INFO  L432           NwaCegarLoop]: 38 mSDtfsCounter, 123 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:53,954 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 48 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-09 18:37:53,956 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 876 states.
[2024-11-09 18:37:53,977 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 594.
[2024-11-09 18:37:53,978 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 594 states, 593 states have (on average 1.4047217537942664) internal successors, (833), 593 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:53,980 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 833 transitions.
[2024-11-09 18:37:53,981 INFO  L78                 Accepts]: Start accepts. Automaton has 594 states and 833 transitions. Word has length 107
[2024-11-09 18:37:53,981 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:53,981 INFO  L471      AbstractCegarLoop]: Abstraction has 594 states and 833 transitions.
[2024-11-09 18:37:53,981 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:53,982 INFO  L276                IsEmpty]: Start isEmpty. Operand 594 states and 833 transitions.
[2024-11-09 18:37:53,984 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-11-09 18:37:53,988 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:53,988 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:53,989 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-09 18:37:53,989 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:53,989 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:53,990 INFO  L85        PathProgramCache]: Analyzing trace with hash 310771755, now seen corresponding path program 1 times
[2024-11-09 18:37:53,990 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:53,990 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756116371]
[2024-11-09 18:37:53,990 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:53,990 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:54,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:54,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:54,115 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:54,116 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756116371]
[2024-11-09 18:37:54,116 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756116371] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:54,116 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:54,116 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-09 18:37:54,116 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245991814]
[2024-11-09 18:37:54,117 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:54,117 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:54,117 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:54,118 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:54,118 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:54,118 INFO  L87              Difference]: Start difference. First operand 594 states and 833 transitions. Second operand  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:54,569 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:54,569 INFO  L93              Difference]: Finished difference Result 1766 states and 2479 transitions.
[2024-11-09 18:37:54,569 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:54,570 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109
[2024-11-09 18:37:54,570 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:54,574 INFO  L225             Difference]: With dead ends: 1766
[2024-11-09 18:37:54,574 INFO  L226             Difference]: Without dead ends: 1174
[2024-11-09 18:37:54,576 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:54,578 INFO  L432           NwaCegarLoop]: 53 mSDtfsCounter, 194 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:54,579 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 74 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-09 18:37:54,583 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1174 states.
[2024-11-09 18:37:54,601 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1170.
[2024-11-09 18:37:54,603 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1170 states, 1169 states have (on average 1.3627031650983747) internal successors, (1593), 1169 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:54,607 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1593 transitions.
[2024-11-09 18:37:54,608 INFO  L78                 Accepts]: Start accepts. Automaton has 1170 states and 1593 transitions. Word has length 109
[2024-11-09 18:37:54,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:54,608 INFO  L471      AbstractCegarLoop]: Abstraction has 1170 states and 1593 transitions.
[2024-11-09 18:37:54,608 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:54,609 INFO  L276                IsEmpty]: Start isEmpty. Operand 1170 states and 1593 transitions.
[2024-11-09 18:37:54,612 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-09 18:37:54,612 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:54,612 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:54,613 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-09 18:37:54,613 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:54,613 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:54,614 INFO  L85        PathProgramCache]: Analyzing trace with hash -880855583, now seen corresponding path program 1 times
[2024-11-09 18:37:54,614 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:54,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337139839]
[2024-11-09 18:37:54,614 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:54,614 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:54,647 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:54,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-09 18:37:54,812 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:54,812 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337139839]
[2024-11-09 18:37:54,812 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337139839] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:54,812 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:54,812 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-09 18:37:54,812 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194602995]
[2024-11-09 18:37:54,812 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:54,813 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:54,813 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:54,813 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:54,813 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:54,814 INFO  L87              Difference]: Start difference. First operand 1170 states and 1593 transitions. Second operand  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:55,316 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:55,317 INFO  L93              Difference]: Finished difference Result 2905 states and 4003 transitions.
[2024-11-09 18:37:55,317 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:55,318 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120
[2024-11-09 18:37:55,318 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:55,323 INFO  L225             Difference]: With dead ends: 2905
[2024-11-09 18:37:55,324 INFO  L226             Difference]: Without dead ends: 1737
[2024-11-09 18:37:55,326 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:55,327 INFO  L432           NwaCegarLoop]: 244 mSDtfsCounter, 143 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:55,332 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 262 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-09 18:37:55,334 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1737 states.
[2024-11-09 18:37:55,365 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1595.
[2024-11-09 18:37:55,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1595 states, 1594 states have (on average 1.2496863237139273) internal successors, (1992), 1594 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:55,374 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 1992 transitions.
[2024-11-09 18:37:55,375 INFO  L78                 Accepts]: Start accepts. Automaton has 1595 states and 1992 transitions. Word has length 120
[2024-11-09 18:37:55,375 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:55,375 INFO  L471      AbstractCegarLoop]: Abstraction has 1595 states and 1992 transitions.
[2024-11-09 18:37:55,376 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:55,377 INFO  L276                IsEmpty]: Start isEmpty. Operand 1595 states and 1992 transitions.
[2024-11-09 18:37:55,379 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-09 18:37:55,380 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:55,380 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:55,380 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-09 18:37:55,380 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:55,381 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:55,382 INFO  L85        PathProgramCache]: Analyzing trace with hash 162070550, now seen corresponding path program 1 times
[2024-11-09 18:37:55,382 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:55,382 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139654788]
[2024-11-09 18:37:55,382 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:55,383 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:55,404 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:55,474 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-09 18:37:55,475 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:55,475 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139654788]
[2024-11-09 18:37:55,475 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139654788] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:55,476 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:55,476 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-09 18:37:55,476 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253292071]
[2024-11-09 18:37:55,477 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:55,477 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:55,477 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:55,478 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:55,480 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:55,480 INFO  L87              Difference]: Start difference. First operand 1595 states and 1992 transitions. Second operand  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:55,931 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:55,931 INFO  L93              Difference]: Finished difference Result 4037 states and 4996 transitions.
[2024-11-09 18:37:55,932 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:55,932 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120
[2024-11-09 18:37:55,932 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:55,941 INFO  L225             Difference]: With dead ends: 4037
[2024-11-09 18:37:55,941 INFO  L226             Difference]: Without dead ends: 2444
[2024-11-09 18:37:55,944 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:55,945 INFO  L432           NwaCegarLoop]: 63 mSDtfsCounter, 191 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:55,946 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 78 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-09 18:37:55,949 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2444 states.
[2024-11-09 18:37:56,002 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2444.
[2024-11-09 18:37:56,006 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2444 states, 2443 states have (on average 1.1665984445354072) internal successors, (2850), 2443 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:56,015 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 2850 transitions.
[2024-11-09 18:37:56,019 INFO  L78                 Accepts]: Start accepts. Automaton has 2444 states and 2850 transitions. Word has length 120
[2024-11-09 18:37:56,020 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:56,020 INFO  L471      AbstractCegarLoop]: Abstraction has 2444 states and 2850 transitions.
[2024-11-09 18:37:56,020 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:56,020 INFO  L276                IsEmpty]: Start isEmpty. Operand 2444 states and 2850 transitions.
[2024-11-09 18:37:56,024 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-09 18:37:56,025 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:56,025 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:56,025 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-09 18:37:56,026 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:56,026 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:56,026 INFO  L85        PathProgramCache]: Analyzing trace with hash 1324552471, now seen corresponding path program 1 times
[2024-11-09 18:37:56,026 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:56,027 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448445469]
[2024-11-09 18:37:56,027 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:56,027 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:56,049 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:56,194 INFO  L134       CoverageAnalysis]: Checked inductivity of 44 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-09 18:37:56,194 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:56,194 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448445469]
[2024-11-09 18:37:56,195 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448445469] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:56,195 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:56,195 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-09 18:37:56,195 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394938933]
[2024-11-09 18:37:56,195 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:56,196 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:56,196 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:56,196 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:56,197 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:56,197 INFO  L87              Difference]: Start difference. First operand 2444 states and 2850 transitions. Second operand  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:56,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:56,698 INFO  L93              Difference]: Finished difference Result 5458 states and 6454 transitions.
[2024-11-09 18:37:56,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:56,699 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124
[2024-11-09 18:37:56,699 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:56,710 INFO  L225             Difference]: With dead ends: 5458
[2024-11-09 18:37:56,710 INFO  L226             Difference]: Without dead ends: 3016
[2024-11-09 18:37:56,714 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:56,715 INFO  L432           NwaCegarLoop]: 240 mSDtfsCounter, 142 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:56,715 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 257 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-09 18:37:56,720 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3016 states.
[2024-11-09 18:37:56,762 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 3011.
[2024-11-09 18:37:56,766 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3011 states, 3010 states have (on average 1.1385382059800664) internal successors, (3427), 3010 states have internal predecessors, (3427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:56,776 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 3427 transitions.
[2024-11-09 18:37:56,776 INFO  L78                 Accepts]: Start accepts. Automaton has 3011 states and 3427 transitions. Word has length 124
[2024-11-09 18:37:56,777 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:56,777 INFO  L471      AbstractCegarLoop]: Abstraction has 3011 states and 3427 transitions.
[2024-11-09 18:37:56,777 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:56,778 INFO  L276                IsEmpty]: Start isEmpty. Operand 3011 states and 3427 transitions.
[2024-11-09 18:37:56,782 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-09 18:37:56,782 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:56,782 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:56,783 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-09 18:37:56,783 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:56,783 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:56,783 INFO  L85        PathProgramCache]: Analyzing trace with hash 780441312, now seen corresponding path program 1 times
[2024-11-09 18:37:56,784 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:56,784 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66939572]
[2024-11-09 18:37:56,784 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:56,784 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:56,810 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:56,877 INFO  L134       CoverageAnalysis]: Checked inductivity of 69 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2024-11-09 18:37:56,878 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:56,878 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66939572]
[2024-11-09 18:37:56,878 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66939572] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:56,878 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:56,878 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-09 18:37:56,880 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765768777]
[2024-11-09 18:37:56,880 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:56,880 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:56,880 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:56,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:56,881 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:56,882 INFO  L87              Difference]: Start difference. First operand 3011 states and 3427 transitions. Second operand  has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:57,117 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:57,118 INFO  L93              Difference]: Finished difference Result 5436 states and 6214 transitions.
[2024-11-09 18:37:57,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:57,119 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131
[2024-11-09 18:37:57,119 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:57,119 INFO  L225             Difference]: With dead ends: 5436
[2024-11-09 18:37:57,119 INFO  L226             Difference]: Without dead ends: 0
[2024-11-09 18:37:57,124 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:57,125 INFO  L432           NwaCegarLoop]: 20 mSDtfsCounter, 192 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:57,125 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 20 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-09 18:37:57,126 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-09 18:37:57,126 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-09 18:37:57,126 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:57,126 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-09 18:37:57,127 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131
[2024-11-09 18:37:57,127 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:57,127 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-09 18:37:57,127 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:57,127 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-09 18:37:57,127 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-09 18:37:57,130 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-09 18:37:57,131 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-09 18:37:57,136 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:57,138 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-09 18:37:57,282 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-09 18:37:57,294 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:37:57 BoogieIcfgContainer
[2024-11-09 18:37:57,294 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-09 18:37:57,295 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-09 18:37:57,295 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-09 18:37:57,295 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-09 18:37:57,295 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:37:50" (3/4) ...
[2024-11-09 18:37:57,298 INFO  L143         WitnessPrinter]: Generating witness for correct program
[2024-11-09 18:37:57,318 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2024-11-09 18:37:57,320 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-09 18:37:57,322 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-09 18:37:57,323 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-09 18:37:57,500 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-09 18:37:57,500 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-09 18:37:57,500 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-09 18:37:57,501 INFO  L158              Benchmark]: Toolchain (without parser) took 8505.66ms. Allocated memory was 146.8MB in the beginning and 226.5MB in the end (delta: 79.7MB). Free memory was 75.6MB in the beginning and 160.2MB in the end (delta: -84.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-09 18:37:57,502 INFO  L158              Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-09 18:37:57,502 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 624.48ms. Allocated memory is still 146.8MB. Free memory was 75.4MB in the beginning and 111.5MB in the end (delta: -36.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
[2024-11-09 18:37:57,502 INFO  L158              Benchmark]: Boogie Procedure Inliner took 80.06ms. Allocated memory is still 146.8MB. Free memory was 111.5MB in the beginning and 106.0MB in the end (delta: 5.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-09 18:37:57,503 INFO  L158              Benchmark]: Boogie Preprocessor took 113.10ms. Allocated memory is still 146.8MB. Free memory was 106.0MB in the beginning and 101.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-09 18:37:57,503 INFO  L158              Benchmark]: IcfgBuilder took 1163.35ms. Allocated memory is still 146.8MB. Free memory was 101.8MB in the beginning and 88.6MB in the end (delta: 13.1MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB.
[2024-11-09 18:37:57,503 INFO  L158              Benchmark]: TraceAbstraction took 6308.18ms. Allocated memory was 146.8MB in the beginning and 226.5MB in the end (delta: 79.7MB). Free memory was 88.6MB in the beginning and 172.8MB in the end (delta: -84.1MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB.
[2024-11-09 18:37:57,504 INFO  L158              Benchmark]: Witness Printer took 205.99ms. Allocated memory is still 226.5MB. Free memory was 172.8MB in the beginning and 160.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-09 18:37:57,505 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 624.48ms. Allocated memory is still 146.8MB. Free memory was 75.4MB in the beginning and 111.5MB in the end (delta: -36.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 80.06ms. Allocated memory is still 146.8MB. Free memory was 111.5MB in the beginning and 106.0MB in the end (delta: 5.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 113.10ms. Allocated memory is still 146.8MB. Free memory was 106.0MB in the beginning and 101.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * IcfgBuilder took 1163.35ms. Allocated memory is still 146.8MB. Free memory was 101.8MB in the beginning and 88.6MB in the end (delta: 13.1MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB.
 * TraceAbstraction took 6308.18ms. Allocated memory was 146.8MB in the beginning and 226.5MB in the end (delta: 79.7MB). Free memory was 88.6MB in the beginning and 172.8MB in the end (delta: -84.1MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB.
 * Witness Printer took 205.99ms. Allocated memory is still 226.5MB. Free memory was 172.8MB in the beginning and 160.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 467]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 8, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1147 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1147 mSDsluCounter, 972 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 114 mSDsCounter, 617 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2847 IncrementalHoareTripleChecker+Invalid, 3464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 617 mSolverCounterUnsat, 858 mSDtfsCounter, 2847 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3011occurred in iteration=7, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 437 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 911 NumberOfCodeBlocks, 911 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 903 ConstructedInterpolants, 0 QuantifiedInterpolants, 1684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 206/206 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 616]: Location Invariant
    Derived location invariant: null
RESULT: Ultimate proved your program to be correct!
[2024-11-09 18:37:57,538 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE