./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label24.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 84cfde4a
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label24.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 e1ea7efa1a6f5e3c8e81d21cb48d3f8215c9331802f3340a04165a0f6109c81b
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-84cfde4
[2024-10-10 23:58:00,096 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-10 23:58:00,166 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-10-10 23:58:00,171 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-10 23:58:00,172 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-10 23:58:00,191 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-10 23:58:00,191 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-10 23:58:00,192 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-10 23:58:00,192 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-10 23:58:00,193 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-10 23:58:00,193 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-10 23:58:00,193 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-10 23:58:00,194 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-10 23:58:00,194 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-10 23:58:00,195 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-10 23:58:00,195 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-10 23:58:00,196 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-10 23:58:00,196 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-10-10 23:58:00,196 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-10 23:58:00,197 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-10-10 23:58:00,197 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-10 23:58:00,201 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-10 23:58:00,201 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-10 23:58:00,201 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-10 23:58:00,202 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-10 23:58:00,202 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-10-10 23:58:00,202 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-10 23:58:00,202 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-10 23:58:00,203 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-10 23:58:00,203 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-10 23:58:00,203 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-10 23:58:00,204 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-10 23:58:00,204 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-10 23:58:00,205 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-10 23:58:00,209 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-10 23:58:00,209 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-10 23:58:00,209 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-10 23:58:00,209 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-10 23:58:00,210 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-10 23:58:00,210 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-10 23:58:00,210 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-10 23:58:00,211 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-10 23:58:00,211 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-clean/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-clean/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 -> e1ea7efa1a6f5e3c8e81d21cb48d3f8215c9331802f3340a04165a0f6109c81b
[2024-10-10 23:58:00,472 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-10 23:58:00,495 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-10 23:58:00,498 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-10 23:58:00,500 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-10 23:58:00,500 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-10 23:58:00,502 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label24.c
[2024-10-10 23:58:02,054 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-10 23:58:02,573 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-10 23:58:02,575 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label24.c
[2024-10-10 23:58:02,622 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/877eb69e8/9f2e84e065084a168df2d3b6c0249908/FLAG4aa777155
[2024-10-10 23:58:02,637 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/877eb69e8/9f2e84e065084a168df2d3b6c0249908
[2024-10-10 23:58:02,641 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-10 23:58:02,642 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-10 23:58:02,645 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-10 23:58:02,645 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-10 23:58:02,651 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-10 23:58:02,652 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:58:02" (1/1) ...
[2024-10-10 23:58:02,653 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45197782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:02, skipping insertion in model container
[2024-10-10 23:58:02,653 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:58:02" (1/1) ...
[2024-10-10 23:58:02,870 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-10 23:58:03,130 WARN  L248   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/Problem19_label24.c[6032,6045]
[2024-10-10 23:58:04,325 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-10 23:58:04,338 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-10 23:58:04,364 WARN  L248   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/Problem19_label24.c[6032,6045]
[2024-10-10 23:58:05,082 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-10 23:58:05,122 INFO  L204         MainTranslator]: Completed translation
[2024-10-10 23:58:05,123 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05 WrapperNode
[2024-10-10 23:58:05,123 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-10 23:58:05,124 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-10 23:58:05,124 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-10 23:58:05,124 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-10 23:58:05,131 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:05,269 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:06,019 INFO  L138                Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9431
[2024-10-10 23:58:06,020 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-10 23:58:06,021 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-10 23:58:06,021 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-10 23:58:06,021 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-10 23:58:06,032 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:06,032 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:06,162 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:06,534 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].
[2024-10-10 23:58:06,535 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:06,535 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:07,112 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:07,158 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:07,236 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:07,280 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:07,428 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-10 23:58:07,430 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-10 23:58:07,430 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-10 23:58:07,430 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-10 23:58:07,431 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (1/1) ...
[2024-10-10 23:58:07,436 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-10 23:58:07,448 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3
[2024-10-10 23:58:07,465 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-10-10 23:58:07,467 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-10-10 23:58:07,512 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-10 23:58:07,512 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-10 23:58:07,512 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-10 23:58:07,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-10 23:58:07,584 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-10 23:58:07,586 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-10 23:58:15,846 INFO  L?                        ?]: Removed 1320 outVars from TransFormulas that were not future-live.
[2024-10-10 23:58:15,847 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-10 23:58:15,938 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-10 23:58:15,938 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-10 23:58:15,939 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:58:15 BoogieIcfgContainer
[2024-10-10 23:58:15,939 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-10 23:58:15,943 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-10 23:58:15,944 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-10 23:58:15,947 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-10 23:58:15,947 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:58:02" (1/3) ...
[2024-10-10 23:58:15,948 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593868e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:58:15, skipping insertion in model container
[2024-10-10 23:58:15,949 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:58:05" (2/3) ...
[2024-10-10 23:58:15,949 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593868e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:58:15, skipping insertion in model container
[2024-10-10 23:58:15,950 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:58:15" (3/3) ...
[2024-10-10 23:58:15,952 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem19_label24.c
[2024-10-10 23:58:15,970 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-10 23:58:15,970 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-10 23:58:16,096 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-10 23:58:16,103 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;@4097c8e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-10 23:58:16,103 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-10 23:58:16,112 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 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)
[2024-10-10 23:58:16,118 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2024-10-10 23:58:16,118 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 23:58:16,119 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]
[2024-10-10 23:58:16,119 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 23:58:16,123 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 23:58:16,123 INFO  L85        PathProgramCache]: Analyzing trace with hash -461773157, now seen corresponding path program 1 times
[2024-10-10 23:58:16,133 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 23:58:16,133 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145754070]
[2024-10-10 23:58:16,133 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 23:58:16,134 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 23:58:16,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 23:58:16,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 23:58:16,340 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 23:58:16,340 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145754070]
[2024-10-10 23:58:16,344 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145754070] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 23:58:16,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 23:58:16,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 23:58:16,348 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515635205]
[2024-10-10 23:58:16,349 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 23:58:16,354 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-10-10 23:58:16,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 23:58:16,380 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-10-10 23:58:16,381 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-10-10 23:58:16,387 INFO  L87              Difference]: Start difference. First operand  has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 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 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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)
[2024-10-10 23:58:16,507 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 23:58:16,507 INFO  L93              Difference]: Finished difference Result 3371 states and 6405 transitions.
[2024-10-10 23:58:16,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-10 23:58:16,510 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 44
[2024-10-10 23:58:16,510 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 23:58:16,544 INFO  L225             Difference]: With dead ends: 3371
[2024-10-10 23:58:16,544 INFO  L226             Difference]: Without dead ends: 1684
[2024-10-10 23:58:16,555 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-10-10 23:58:16,560 INFO  L432           NwaCegarLoop]: 3138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-10 23:58:16,561 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3138 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-10 23:58:16,582 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1684 states.
[2024-10-10 23:58:16,673 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684.
[2024-10-10 23:58:16,678 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1684 states, 1683 states have (on average 1.8645276292335116) internal successors, (3138), 1683 states have internal predecessors, (3138), 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)
[2024-10-10 23:58:16,689 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions.
[2024-10-10 23:58:16,694 INFO  L78                 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 44
[2024-10-10 23:58:16,696 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 23:58:16,696 INFO  L471      AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions.
[2024-10-10 23:58:16,697 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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)
[2024-10-10 23:58:16,697 INFO  L276                IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions.
[2024-10-10 23:58:16,698 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2024-10-10 23:58:16,698 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 23:58:16,698 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]
[2024-10-10 23:58:16,699 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-10 23:58:16,699 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 23:58:16,700 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 23:58:16,700 INFO  L85        PathProgramCache]: Analyzing trace with hash 981886880, now seen corresponding path program 1 times
[2024-10-10 23:58:16,701 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 23:58:16,701 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912316688]
[2024-10-10 23:58:16,701 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 23:58:16,701 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 23:58:16,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 23:58:17,110 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 23:58:17,112 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 23:58:17,112 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912316688]
[2024-10-10 23:58:17,112 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912316688] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 23:58:17,112 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 23:58:17,112 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-10 23:58:17,113 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054705285]
[2024-10-10 23:58:17,113 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 23:58:17,114 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-10 23:58:17,114 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 23:58:17,115 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-10 23:58:17,115 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-10 23:58:17,117 INFO  L87              Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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)
[2024-10-10 23:58:27,110 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 23:58:27,110 INFO  L93              Difference]: Finished difference Result 6153 states and 11660 transitions.
[2024-10-10 23:58:27,111 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-10 23:58:27,111 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 44
[2024-10-10 23:58:27,111 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 23:58:27,129 INFO  L225             Difference]: With dead ends: 6153
[2024-10-10 23:58:27,129 INFO  L226             Difference]: Without dead ends: 4470
[2024-10-10 23:58:27,132 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-10 23:58:27,133 INFO  L432           NwaCegarLoop]: 707 mSDtfsCounter, 4539 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 7005 mSolverCounterSat, 3531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4539 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 10536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3531 IncrementalHoareTripleChecker+Valid, 7005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time
[2024-10-10 23:58:27,134 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4539 Valid, 981 Invalid, 10536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3531 Valid, 7005 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time]
[2024-10-10 23:58:27,140 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4470 states.
[2024-10-10 23:58:27,229 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4466.
[2024-10-10 23:58:27,238 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4466 states, 4465 states have (on average 1.5666293393057111) internal successors, (6995), 4465 states have internal predecessors, (6995), 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)
[2024-10-10 23:58:27,255 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 6995 transitions.
[2024-10-10 23:58:27,255 INFO  L78                 Accepts]: Start accepts. Automaton has 4466 states and 6995 transitions. Word has length 44
[2024-10-10 23:58:27,256 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 23:58:27,256 INFO  L471      AbstractCegarLoop]: Abstraction has 4466 states and 6995 transitions.
[2024-10-10 23:58:27,256 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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)
[2024-10-10 23:58:27,256 INFO  L276                IsEmpty]: Start isEmpty. Operand 4466 states and 6995 transitions.
[2024-10-10 23:58:27,266 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 319
[2024-10-10 23:58:27,267 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 23:58:27,267 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 23:58:27,267 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-10 23:58:27,268 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 23:58:27,268 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 23:58:27,269 INFO  L85        PathProgramCache]: Analyzing trace with hash -39308583, now seen corresponding path program 1 times
[2024-10-10 23:58:27,269 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 23:58:27,269 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949684009]
[2024-10-10 23:58:27,269 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 23:58:27,269 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 23:58:27,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 23:58:28,433 INFO  L134       CoverageAnalysis]: Checked inductivity of 149 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2024-10-10 23:58:28,434 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 23:58:28,434 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949684009]
[2024-10-10 23:58:28,434 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949684009] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 23:58:28,434 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 23:58:28,435 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-10 23:58:28,435 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088870251]
[2024-10-10 23:58:28,435 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 23:58:28,436 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-10 23:58:28,436 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 23:58:28,437 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-10 23:58:28,437 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-10 23:58:28,437 INFO  L87              Difference]: Start difference. First operand 4466 states and 6995 transitions. Second operand  has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 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)
[2024-10-10 23:58:38,172 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 23:58:38,172 INFO  L93              Difference]: Finished difference Result 11709 states and 20220 transitions.
[2024-10-10 23:58:38,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-10 23:58:38,174 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 318
[2024-10-10 23:58:38,174 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 23:58:38,208 INFO  L225             Difference]: With dead ends: 11709
[2024-10-10 23:58:38,208 INFO  L226             Difference]: Without dead ends: 8609
[2024-10-10 23:58:38,215 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-10 23:58:38,216 INFO  L432           NwaCegarLoop]: 1799 mSDtfsCounter, 3755 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 9446 mSolverCounterSat, 1331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 10777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1331 IncrementalHoareTripleChecker+Valid, 9446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time
[2024-10-10 23:58:38,217 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3755 Valid, 2153 Invalid, 10777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1331 Valid, 9446 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time]
[2024-10-10 23:58:38,227 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8609 states.
[2024-10-10 23:58:38,357 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8609 to 8595.
[2024-10-10 23:58:38,371 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8595 states, 8594 states have (on average 1.348498952757738) internal successors, (11589), 8594 states have internal predecessors, (11589), 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)
[2024-10-10 23:58:38,387 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8595 states to 8595 states and 11589 transitions.
[2024-10-10 23:58:38,388 INFO  L78                 Accepts]: Start accepts. Automaton has 8595 states and 11589 transitions. Word has length 318
[2024-10-10 23:58:38,389 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 23:58:38,391 INFO  L471      AbstractCegarLoop]: Abstraction has 8595 states and 11589 transitions.
[2024-10-10 23:58:38,392 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 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)
[2024-10-10 23:58:38,392 INFO  L276                IsEmpty]: Start isEmpty. Operand 8595 states and 11589 transitions.
[2024-10-10 23:58:38,397 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 347
[2024-10-10 23:58:38,400 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 23:58:38,401 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 23:58:38,401 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-10 23:58:38,401 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 23:58:38,401 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 23:58:38,401 INFO  L85        PathProgramCache]: Analyzing trace with hash 178712243, now seen corresponding path program 1 times
[2024-10-10 23:58:38,402 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 23:58:38,402 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084463172]
[2024-10-10 23:58:38,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 23:58:38,402 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 23:58:38,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 23:58:39,280 INFO  L134       CoverageAnalysis]: Checked inductivity of 149 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2024-10-10 23:58:39,281 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 23:58:39,281 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084463172]
[2024-10-10 23:58:39,281 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084463172] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 23:58:39,282 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 23:58:39,282 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-10 23:58:39,282 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480370429]
[2024-10-10 23:58:39,282 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 23:58:39,283 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-10 23:58:39,285 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 23:58:39,286 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-10 23:58:39,286 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-10-10 23:58:39,287 INFO  L87              Difference]: Start difference. First operand 8595 states and 11589 transitions. Second operand  has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 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)
[2024-10-10 23:58:44,710 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 23:58:44,710 INFO  L93              Difference]: Finished difference Result 14490 states and 20460 transitions.
[2024-10-10 23:58:44,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-10 23:58:44,711 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 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 346
[2024-10-10 23:58:44,712 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 23:58:44,740 INFO  L225             Difference]: With dead ends: 14490
[2024-10-10 23:58:44,740 INFO  L226             Difference]: Without dead ends: 8595
[2024-10-10 23:58:44,751 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-10-10 23:58:44,752 INFO  L432           NwaCegarLoop]: 1771 mSDtfsCounter, 1151 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 5714 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 5722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2024-10-10 23:58:44,753 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1949 Invalid, 5722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 5714 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2024-10-10 23:58:44,764 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8595 states.
[2024-10-10 23:58:44,901 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8595 to 8595.
[2024-10-10 23:58:44,918 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8595 states, 8594 states have (on average 1.346986269490342) internal successors, (11576), 8594 states have internal predecessors, (11576), 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)
[2024-10-10 23:58:44,936 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8595 states to 8595 states and 11576 transitions.
[2024-10-10 23:58:44,937 INFO  L78                 Accepts]: Start accepts. Automaton has 8595 states and 11576 transitions. Word has length 346
[2024-10-10 23:58:44,938 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 23:58:44,938 INFO  L471      AbstractCegarLoop]: Abstraction has 8595 states and 11576 transitions.
[2024-10-10 23:58:44,939 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 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)
[2024-10-10 23:58:44,939 INFO  L276                IsEmpty]: Start isEmpty. Operand 8595 states and 11576 transitions.
[2024-10-10 23:58:44,948 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 599
[2024-10-10 23:58:44,949 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 23:58:44,949 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 23:58:44,950 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-10 23:58:44,951 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 23:58:44,951 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 23:58:44,951 INFO  L85        PathProgramCache]: Analyzing trace with hash -1953437652, now seen corresponding path program 1 times
[2024-10-10 23:58:44,951 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 23:58:44,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870293199]
[2024-10-10 23:58:44,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 23:58:44,952 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 23:58:45,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 23:58:45,967 INFO  L134       CoverageAnalysis]: Checked inductivity of 149 backedges. 107 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 23:58:45,968 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 23:58:45,968 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870293199]
[2024-10-10 23:58:45,969 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870293199] provided 0 perfect and 1 imperfect interpolant sequences
[2024-10-10 23:58:45,969 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406896976]
[2024-10-10 23:58:45,970 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 23:58:45,970 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-10 23:58:45,970 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3
[2024-10-10 23:58:45,974 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-10 23:58:45,975 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-10-10 23:58:46,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 23:58:46,324 INFO  L255         TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-10-10 23:58:46,342 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-10 23:58:46,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 149 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 23:58:46,499 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-10-10 23:58:46,499 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406896976] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 23:58:46,499 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-10-10 23:58:46,499 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-10-10 23:58:46,500 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865804073]
[2024-10-10 23:58:46,500 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 23:58:46,501 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-10 23:58:46,501 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 23:58:46,502 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-10 23:58:46,502 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-10-10 23:58:46,502 INFO  L87              Difference]: Start difference. First operand 8595 states and 11576 transitions. Second operand  has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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)
[2024-10-10 23:58:51,798 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 23:58:51,798 INFO  L93              Difference]: Finished difference Result 19934 states and 28707 transitions.
[2024-10-10 23:58:51,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-10 23:58:51,800 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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 598
[2024-10-10 23:58:51,804 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 23:58:51,836 INFO  L225             Difference]: With dead ends: 19934
[2024-10-10 23:58:51,836 INFO  L226             Difference]: Without dead ends: 14070
[2024-10-10 23:58:51,847 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-10-10 23:58:51,847 INFO  L432           NwaCegarLoop]: 1369 mSDtfsCounter, 1729 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 3865 mSolverCounterSat, 1728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 5593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1728 IncrementalHoareTripleChecker+Valid, 3865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2024-10-10 23:58:51,848 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1506 Invalid, 5593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1728 Valid, 3865 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2024-10-10 23:58:51,863 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14070 states.
[2024-10-10 23:58:52,043 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14070 to 14070.
[2024-10-10 23:58:52,067 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14070 states, 14069 states have (on average 1.2694576728978606) internal successors, (17860), 14069 states have internal predecessors, (17860), 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)
[2024-10-10 23:58:52,087 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14070 states to 14070 states and 17860 transitions.
[2024-10-10 23:58:52,087 INFO  L78                 Accepts]: Start accepts. Automaton has 14070 states and 17860 transitions. Word has length 598
[2024-10-10 23:58:52,088 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 23:58:52,088 INFO  L471      AbstractCegarLoop]: Abstraction has 14070 states and 17860 transitions.
[2024-10-10 23:58:52,089 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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)
[2024-10-10 23:58:52,089 INFO  L276                IsEmpty]: Start isEmpty. Operand 14070 states and 17860 transitions.
[2024-10-10 23:58:52,100 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 600
[2024-10-10 23:58:52,100 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 23:58:52,102 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 23:58:52,120 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-10-10 23:58:52,302 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-10 23:58:52,303 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 23:58:52,304 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 23:58:52,304 INFO  L85        PathProgramCache]: Analyzing trace with hash -2141231356, now seen corresponding path program 1 times
[2024-10-10 23:58:52,304 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 23:58:52,304 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060991142]
[2024-10-10 23:58:52,305 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 23:58:52,305 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 23:58:52,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 23:58:52,755 INFO  L134       CoverageAnalysis]: Checked inductivity of 152 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked.
[2024-10-10 23:58:52,756 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 23:58:52,756 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060991142]
[2024-10-10 23:58:52,756 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060991142] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 23:58:52,756 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 23:58:52,756 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 23:58:52,756 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495041464]
[2024-10-10 23:58:52,756 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 23:58:52,760 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-10 23:58:52,760 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 23:58:52,761 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-10 23:58:52,761 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-10 23:58:52,761 INFO  L87              Difference]: Start difference. First operand 14070 states and 17860 transitions. Second operand  has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 2 states have internal predecessors, (533), 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)
[2024-10-10 23:58:58,619 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 23:58:58,619 INFO  L93              Difference]: Finished difference Result 36503 states and 47793 transitions.
[2024-10-10 23:58:58,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-10 23:58:58,620 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 2 states have internal predecessors, (533), 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 599
[2024-10-10 23:58:58,621 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 23:58:58,667 INFO  L225             Difference]: With dead ends: 36503
[2024-10-10 23:58:58,668 INFO  L226             Difference]: Without dead ends: 25164
[2024-10-10 23:58:58,682 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
[2024-10-10 23:58:58,684 INFO  L432           NwaCegarLoop]: 693 mSDtfsCounter, 2110 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 5096 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 5530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 5096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time
[2024-10-10 23:58:58,684 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 962 Invalid, 5530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 5096 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time]
[2024-10-10 23:58:58,710 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25164 states.
[2024-10-10 23:58:58,958 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25164 to 23796.
[2024-10-10 23:58:58,986 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23796 states, 23795 states have (on average 1.267451145198571) internal successors, (30159), 23795 states have internal predecessors, (30159), 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)
[2024-10-10 23:58:59,029 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23796 states to 23796 states and 30159 transitions.
[2024-10-10 23:58:59,030 INFO  L78                 Accepts]: Start accepts. Automaton has 23796 states and 30159 transitions. Word has length 599
[2024-10-10 23:58:59,031 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 23:58:59,031 INFO  L471      AbstractCegarLoop]: Abstraction has 23796 states and 30159 transitions.
[2024-10-10 23:58:59,031 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 2 states have internal predecessors, (533), 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)
[2024-10-10 23:58:59,032 INFO  L276                IsEmpty]: Start isEmpty. Operand 23796 states and 30159 transitions.
[2024-10-10 23:58:59,036 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 617
[2024-10-10 23:58:59,036 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 23:58:59,036 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 23:58:59,037 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-10-10 23:58:59,037 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 23:58:59,037 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 23:58:59,037 INFO  L85        PathProgramCache]: Analyzing trace with hash 1537052760, now seen corresponding path program 1 times
[2024-10-10 23:58:59,038 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 23:58:59,038 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810710527]
[2024-10-10 23:58:59,038 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 23:58:59,038 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 23:58:59,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 23:58:59,490 INFO  L134       CoverageAnalysis]: Checked inductivity of 169 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-10-10 23:58:59,490 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 23:58:59,490 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810710527]
[2024-10-10 23:58:59,490 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810710527] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 23:58:59,491 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 23:58:59,491 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 23:58:59,491 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233638110]
[2024-10-10 23:58:59,491 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 23:58:59,492 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-10 23:58:59,492 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 23:58:59,494 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-10 23:58:59,495 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-10 23:58:59,495 INFO  L87              Difference]: Start difference. First operand 23796 states and 30159 transitions. Second operand  has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 2 states have internal predecessors, (533), 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)
[2024-10-10 23:59:04,779 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 23:59:04,780 INFO  L93              Difference]: Finished difference Result 50346 states and 65461 transitions.
[2024-10-10 23:59:04,780 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-10 23:59:04,780 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 2 states have internal predecessors, (533), 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 616
[2024-10-10 23:59:04,781 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 23:59:04,854 INFO  L225             Difference]: With dead ends: 50346
[2024-10-10 23:59:04,855 INFO  L226             Difference]: Without dead ends: 29281
[2024-10-10 23:59:04,874 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
[2024-10-10 23:59:04,875 INFO  L432           NwaCegarLoop]: 674 mSDtfsCounter, 1377 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 3922 mSolverCounterSat, 2125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 6047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2125 IncrementalHoareTripleChecker+Valid, 3922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2024-10-10 23:59:04,875 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 721 Invalid, 6047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2125 Valid, 3922 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2024-10-10 23:59:04,900 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29281 states.
[2024-10-10 23:59:05,166 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29281 to 29266.
[2024-10-10 23:59:05,196 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29266 states, 29265 states have (on average 1.2553220570647532) internal successors, (36737), 29265 states have internal predecessors, (36737), 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)
[2024-10-10 23:59:05,235 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29266 states to 29266 states and 36737 transitions.
[2024-10-10 23:59:05,236 INFO  L78                 Accepts]: Start accepts. Automaton has 29266 states and 36737 transitions. Word has length 616
[2024-10-10 23:59:05,237 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 23:59:05,237 INFO  L471      AbstractCegarLoop]: Abstraction has 29266 states and 36737 transitions.
[2024-10-10 23:59:05,238 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 2 states have internal predecessors, (533), 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)
[2024-10-10 23:59:05,238 INFO  L276                IsEmpty]: Start isEmpty. Operand 29266 states and 36737 transitions.
[2024-10-10 23:59:05,246 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 829
[2024-10-10 23:59:05,246 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 23:59:05,246 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 23:59:05,248 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-10-10 23:59:05,248 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 23:59:05,249 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 23:59:05,249 INFO  L85        PathProgramCache]: Analyzing trace with hash -1361208943, now seen corresponding path program 1 times
[2024-10-10 23:59:05,250 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 23:59:05,250 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072074905]
[2024-10-10 23:59:05,250 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 23:59:05,251 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 23:59:05,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 23:59:05,873 INFO  L134       CoverageAnalysis]: Checked inductivity of 506 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked.
[2024-10-10 23:59:05,873 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 23:59:05,873 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072074905]
[2024-10-10 23:59:05,874 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072074905] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 23:59:05,874 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 23:59:05,874 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-10 23:59:05,874 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382966299]
[2024-10-10 23:59:05,874 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 23:59:05,875 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-10 23:59:05,875 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 23:59:05,876 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-10 23:59:05,876 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-10-10 23:59:05,877 INFO  L87              Difference]: Start difference. First operand 29266 states and 36737 transitions. Second operand  has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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)
[2024-10-10 23:59:15,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 23:59:15,160 INFO  L93              Difference]: Finished difference Result 98281 states and 126942 transitions.
[2024-10-10 23:59:15,160 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-10 23:59:15,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 828
[2024-10-10 23:59:15,162 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 23:59:15,267 INFO  L225             Difference]: With dead ends: 98281
[2024-10-10 23:59:15,267 INFO  L226             Difference]: Without dead ends: 71746
[2024-10-10 23:59:15,302 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-10-10 23:59:15,304 INFO  L432           NwaCegarLoop]: 820 mSDtfsCounter, 3273 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 8836 mSolverCounterSat, 2955 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3273 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 11791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2955 IncrementalHoareTripleChecker+Valid, 8836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2024-10-10 23:59:15,304 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3273 Valid, 1138 Invalid, 11791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2955 Valid, 8836 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time]
[2024-10-10 23:59:15,367 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71746 states.
[2024-10-10 23:59:16,160 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71746 to 70297.
[2024-10-10 23:59:16,228 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70297 states, 70296 states have (on average 1.2196142027995902) internal successors, (85734), 70296 states have internal predecessors, (85734), 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)
[2024-10-10 23:59:16,357 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70297 states to 70297 states and 85734 transitions.
[2024-10-10 23:59:16,358 INFO  L78                 Accepts]: Start accepts. Automaton has 70297 states and 85734 transitions. Word has length 828
[2024-10-10 23:59:16,361 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 23:59:16,361 INFO  L471      AbstractCegarLoop]: Abstraction has 70297 states and 85734 transitions.
[2024-10-10 23:59:16,362 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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)
[2024-10-10 23:59:16,362 INFO  L276                IsEmpty]: Start isEmpty. Operand 70297 states and 85734 transitions.
[2024-10-10 23:59:16,375 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 847
[2024-10-10 23:59:16,375 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 23:59:16,377 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 23:59:16,377 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-10-10 23:59:16,378 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 23:59:16,378 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 23:59:16,379 INFO  L85        PathProgramCache]: Analyzing trace with hash 1440167109, now seen corresponding path program 1 times
[2024-10-10 23:59:16,379 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 23:59:16,379 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760860463]
[2024-10-10 23:59:16,379 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 23:59:16,380 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms