./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-back-serstep.c --full-output --architecture 64bit


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


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/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-back-serstep.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash d2561f6cd4d59a4aae572b737db17a91828d05bfbbf76f8a60a195e02171846f
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-84cfde4
[2024-10-11 06:26:18,997 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-11 06:26:19,077 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-10-11 06:26:19,086 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-11 06:26:19,088 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-11 06:26:19,133 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-11 06:26:19,133 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-11 06:26:19,134 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-11 06:26:19,135 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-11 06:26:19,136 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-11 06:26:19,136 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-11 06:26:19,137 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-11 06:26:19,138 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-11 06:26:19,138 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-11 06:26:19,140 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-11 06:26:19,140 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-11 06:26:19,141 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-11 06:26:19,141 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-11 06:26:19,141 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-11 06:26:19,142 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-11 06:26:19,142 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-11 06:26:19,143 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-11 06:26:19,146 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-11 06:26:19,147 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-11 06:26:19,147 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-11 06:26:19,147 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-11 06:26:19,147 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-11 06:26:19,148 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-11 06:26:19,148 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-11 06:26:19,148 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-11 06:26:19,148 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-11 06:26:19,149 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-11 06:26:19,149 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-11 06:26:19,149 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-11 06:26:19,150 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-11 06:26:19,150 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-11 06:26:19,150 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-11 06:26:19,151 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-11 06:26:19,152 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-11 06:26:19,152 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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2561f6cd4d59a4aae572b737db17a91828d05bfbbf76f8a60a195e02171846f
[2024-10-11 06:26:19,462 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-11 06:26:19,508 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-11 06:26:19,511 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-11 06:26:19,512 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-11 06:26:19,512 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-11 06:26:19,513 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-back-serstep.c
[2024-10-11 06:26:21,252 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-11 06:26:21,686 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-11 06:26:21,687 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-back-serstep.c
[2024-10-11 06:26:21,715 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7e01e243d/776fd97ea8b74ff9bf0ab7033a52784d/FLAGb18392f45
[2024-10-11 06:26:21,823 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7e01e243d/776fd97ea8b74ff9bf0ab7033a52784d
[2024-10-11 06:26:21,827 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-11 06:26:21,829 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-11 06:26:21,833 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-11 06:26:21,833 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-11 06:26:21,841 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-11 06:26:21,842 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:26:21" (1/1) ...
[2024-10-11 06:26:21,843 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d16a45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:21, skipping insertion in model container
[2024-10-11 06:26:21,843 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:26:21" (1/1) ...
[2024-10-11 06:26:21,938 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-11 06:26:22,181 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/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-back-serstep.c[1173,1186]
[2024-10-11 06:26:22,884 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-11 06:26:22,897 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-11 06:26:22,909 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/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-back-serstep.c[1173,1186]
[2024-10-11 06:26:23,452 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-11 06:26:23,488 INFO  L204         MainTranslator]: Completed translation
[2024-10-11 06:26:23,493 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23 WrapperNode
[2024-10-11 06:26:23,493 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-11 06:26:23,494 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-11 06:26:23,494 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-11 06:26:23,494 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-11 06:26:23,512 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:23,759 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:26,868 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15276
[2024-10-11 06:26:26,869 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-11 06:26:26,870 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-11 06:26:26,870 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-11 06:26:26,870 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-11 06:26:26,881 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:26,882 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:27,646 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:28,219 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].
[2024-10-11 06:26:28,220 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:28,221 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:29,320 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:29,482 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:29,721 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:29,900 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:30,406 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-11 06:26:30,407 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-11 06:26:30,407 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-11 06:26:30,407 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-11 06:26:30,408 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (1/1) ...
[2024-10-11 06:26:30,413 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-11 06:26:30,424 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3
[2024-10-11 06:26:30,445 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)
[2024-10-11 06:26:30,448 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
[2024-10-11 06:26:30,492 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-11 06:26:30,493 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-11 06:26:30,493 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-11 06:26:30,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-11 06:26:31,181 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-11 06:26:31,184 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-11 06:27:08,395 INFO  L?                        ?]: Removed 8349 outVars from TransFormulas that were not future-live.
[2024-10-11 06:27:08,395 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-11 06:27:08,651 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-11 06:27:08,652 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-11 06:27:08,652 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:27:08 BoogieIcfgContainer
[2024-10-11 06:27:08,652 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-11 06:27:08,654 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-11 06:27:08,654 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-11 06:27:08,658 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-11 06:27:08,658 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:26:21" (1/3) ...
[2024-10-11 06:27:08,658 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e492df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:27:08, skipping insertion in model container
[2024-10-11 06:27:08,659 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:26:23" (2/3) ...
[2024-10-11 06:27:08,659 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e492df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:27:08, skipping insertion in model container
[2024-10-11 06:27:08,659 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:27:08" (3/3) ...
[2024-10-11 06:27:08,660 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.msmie.1.prop1-back-serstep.c
[2024-10-11 06:27:08,674 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-11 06:27:08,675 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-11 06:27:08,831 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-11 06:27:08,840 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;@40b64958, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-11 06:27:08,841 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-11 06:27:08,860 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5367 states, 5365 states have (on average 1.5000931966449207) internal successors, (8048), 5366 states have internal predecessors, (8048), 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)
[2024-10-11 06:27:08,907 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 471
[2024-10-11 06:27:08,907 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-11 06:27:08,908 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-11 06:27:08,909 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-11 06:27:08,914 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-11 06:27:08,915 INFO  L85        PathProgramCache]: Analyzing trace with hash -1408908842, now seen corresponding path program 1 times
[2024-10-11 06:27:08,923 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-11 06:27:08,924 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238087016]
[2024-10-11 06:27:08,924 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-11 06:27:08,924 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-11 06:27:10,211 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-11 06:27:12,213 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-11 06:27:12,215 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-11 06:27:12,215 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238087016]
[2024-10-11 06:27:12,216 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238087016] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-11 06:27:12,217 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-11 06:27:12,217 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-11 06:27:12,219 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368992020]
[2024-10-11 06:27:12,219 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-11 06:27:12,225 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-11 06:27:12,227 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-11 06:27:12,256 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-11 06:27:12,257 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-11 06:27:12,272 INFO  L87              Difference]: Start difference. First operand  has 5367 states, 5365 states have (on average 1.5000931966449207) internal successors, (8048), 5366 states have internal predecessors, (8048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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)
[2024-10-11 06:27:12,565 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-11 06:27:12,566 INFO  L93              Difference]: Finished difference Result 10546 states and 15816 transitions.
[2024-10-11 06:27:12,568 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-11 06:27:12,569 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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 470
[2024-10-11 06:27:12,572 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-11 06:27:12,613 INFO  L225             Difference]: With dead ends: 10546
[2024-10-11 06:27:12,613 INFO  L226             Difference]: Without dead ends: 5368
[2024-10-11 06:27:12,631 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-11 06:27:12,636 INFO  L432           NwaCegarLoop]: 8043 mSDtfsCounter, 0 mSDsluCounter, 16081 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24124 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-11 06:27:12,638 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24124 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-11 06:27:12,667 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5368 states.
[2024-10-11 06:27:12,815 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5368 to 5368.
[2024-10-11 06:27:12,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5368 states, 5367 states have (on average 1.499534190422955) internal successors, (8048), 5367 states have internal predecessors, (8048), 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)
[2024-10-11 06:27:12,849 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 8048 transitions.
[2024-10-11 06:27:12,851 INFO  L78                 Accepts]: Start accepts. Automaton has 5368 states and 8048 transitions. Word has length 470
[2024-10-11 06:27:12,854 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-11 06:27:12,857 INFO  L471      AbstractCegarLoop]: Abstraction has 5368 states and 8048 transitions.
[2024-10-11 06:27:12,858 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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)
[2024-10-11 06:27:12,858 INFO  L276                IsEmpty]: Start isEmpty. Operand 5368 states and 8048 transitions.
[2024-10-11 06:27:12,866 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 472
[2024-10-11 06:27:12,867 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-11 06:27:12,867 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-11 06:27:12,868 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-11 06:27:12,868 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-11 06:27:12,869 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-11 06:27:12,869 INFO  L85        PathProgramCache]: Analyzing trace with hash -724802960, now seen corresponding path program 1 times
[2024-10-11 06:27:12,870 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-11 06:27:12,870 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869826299]
[2024-10-11 06:27:12,870 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-11 06:27:12,871 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-11 06:27:13,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-11 06:27:14,026 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-11 06:27:14,029 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-11 06:27:14,029 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869826299]
[2024-10-11 06:27:14,029 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869826299] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-11 06:27:14,029 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-11 06:27:14,029 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-11 06:27:14,030 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469390744]
[2024-10-11 06:27:14,030 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-11 06:27:14,032 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-11 06:27:14,033 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-11 06:27:14,034 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-11 06:27:14,034 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-11 06:27:14,035 INFO  L87              Difference]: Start difference. First operand 5368 states and 8048 transitions. Second operand  has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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)
[2024-10-11 06:27:14,209 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-11 06:27:14,209 INFO  L93              Difference]: Finished difference Result 10549 states and 15816 transitions.
[2024-10-11 06:27:14,210 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-11 06:27:14,211 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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 471
[2024-10-11 06:27:14,212 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-11 06:27:14,232 INFO  L225             Difference]: With dead ends: 10549
[2024-10-11 06:27:14,232 INFO  L226             Difference]: Without dead ends: 5370
[2024-10-11 06:27:14,243 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-11 06:27:14,244 INFO  L432           NwaCegarLoop]: 8043 mSDtfsCounter, 0 mSDsluCounter, 16078 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24121 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-11 06:27:14,245 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24121 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-11 06:27:14,254 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5370 states.
[2024-10-11 06:27:14,336 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5370 to 5370.
[2024-10-11 06:27:14,348 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5370 states, 5369 states have (on average 1.4993481095176011) internal successors, (8050), 5369 states have internal predecessors, (8050), 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)
[2024-10-11 06:27:14,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5370 states to 5370 states and 8050 transitions.
[2024-10-11 06:27:14,367 INFO  L78                 Accepts]: Start accepts. Automaton has 5370 states and 8050 transitions. Word has length 471
[2024-10-11 06:27:14,368 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-11 06:27:14,368 INFO  L471      AbstractCegarLoop]: Abstraction has 5370 states and 8050 transitions.
[2024-10-11 06:27:14,369 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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)
[2024-10-11 06:27:14,369 INFO  L276                IsEmpty]: Start isEmpty. Operand 5370 states and 8050 transitions.
[2024-10-11 06:27:14,377 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 473
[2024-10-11 06:27:14,378 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-11 06:27:14,378 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-11 06:27:14,378 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-11 06:27:14,379 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-11 06:27:14,379 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-11 06:27:14,379 INFO  L85        PathProgramCache]: Analyzing trace with hash -2092018193, now seen corresponding path program 1 times
[2024-10-11 06:27:14,379 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-11 06:27:14,380 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883786521]
[2024-10-11 06:27:14,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-11 06:27:14,380 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-11 06:27:14,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-11 06:27:15,307 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-11 06:27:15,307 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-11 06:27:15,308 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883786521]
[2024-10-11 06:27:15,308 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883786521] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-11 06:27:15,308 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-11 06:27:15,308 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-11 06:27:15,308 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945536158]
[2024-10-11 06:27:15,309 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-11 06:27:15,309 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-11 06:27:15,310 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-11 06:27:15,311 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-11 06:27:15,311 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-11 06:27:15,311 INFO  L87              Difference]: Start difference. First operand 5370 states and 8050 transitions. Second operand  has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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)
[2024-10-11 06:27:15,661 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-11 06:27:15,662 INFO  L93              Difference]: Finished difference Result 10553 states and 15820 transitions.
[2024-10-11 06:27:15,662 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-11 06:27:15,663 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 472
[2024-10-11 06:27:15,664 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-11 06:27:15,684 INFO  L225             Difference]: With dead ends: 10553
[2024-10-11 06:27:15,684 INFO  L226             Difference]: Without dead ends: 5372
[2024-10-11 06:27:15,694 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-11 06:27:15,698 INFO  L432           NwaCegarLoop]: 8043 mSDtfsCounter, 0 mSDsluCounter, 16078 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24121 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-11 06:27:15,699 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24121 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-11 06:27:15,711 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5372 states.
[2024-10-11 06:27:15,811 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5372 to 5372.
[2024-10-11 06:27:15,832 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5372 states, 5371 states have (on average 1.499162167194191) internal successors, (8052), 5371 states have internal predecessors, (8052), 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)
[2024-10-11 06:27:15,853 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8052 transitions.
[2024-10-11 06:27:15,854 INFO  L78                 Accepts]: Start accepts. Automaton has 5372 states and 8052 transitions. Word has length 472
[2024-10-11 06:27:15,855 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-11 06:27:15,855 INFO  L471      AbstractCegarLoop]: Abstraction has 5372 states and 8052 transitions.
[2024-10-11 06:27:15,855 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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)
[2024-10-11 06:27:15,855 INFO  L276                IsEmpty]: Start isEmpty. Operand 5372 states and 8052 transitions.
[2024-10-11 06:27:15,864 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 474
[2024-10-11 06:27:15,865 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-11 06:27:15,865 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-11 06:27:15,866 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-11 06:27:15,866 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-11 06:27:15,867 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-11 06:27:15,867 INFO  L85        PathProgramCache]: Analyzing trace with hash 480835287, now seen corresponding path program 1 times
[2024-10-11 06:27:15,867 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-11 06:27:15,868 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467334530]
[2024-10-11 06:27:15,868 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-11 06:27:15,868 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-11 06:27:16,058 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-11 06:27:16,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-11 06:27:16,812 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-11 06:27:16,812 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467334530]
[2024-10-11 06:27:16,812 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467334530] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-11 06:27:16,813 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-11 06:27:16,813 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-11 06:27:16,813 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197086370]
[2024-10-11 06:27:16,813 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-11 06:27:16,814 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-11 06:27:16,814 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-11 06:27:16,815 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-11 06:27:16,815 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-11 06:27:16,816 INFO  L87              Difference]: Start difference. First operand 5372 states and 8052 transitions. Second operand  has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 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)
[2024-10-11 06:27:16,992 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-11 06:27:16,993 INFO  L93              Difference]: Finished difference Result 10557 states and 15824 transitions.
[2024-10-11 06:27:16,993 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-11 06:27:16,994 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 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 473
[2024-10-11 06:27:16,995 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-11 06:27:17,016 INFO  L225             Difference]: With dead ends: 10557
[2024-10-11 06:27:17,016 INFO  L226             Difference]: Without dead ends: 5374
[2024-10-11 06:27:17,026 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-11 06:27:17,027 INFO  L432           NwaCegarLoop]: 8043 mSDtfsCounter, 0 mSDsluCounter, 16078 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24121 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-11 06:27:17,028 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24121 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-11 06:27:17,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5374 states.
[2024-10-11 06:27:17,120 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5374 to 5374.
[2024-10-11 06:27:17,130 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5374 states, 5373 states have (on average 1.4989763632979713) internal successors, (8054), 5373 states have internal predecessors, (8054), 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)
[2024-10-11 06:27:17,147 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 8054 transitions.
[2024-10-11 06:27:17,147 INFO  L78                 Accepts]: Start accepts. Automaton has 5374 states and 8054 transitions. Word has length 473
[2024-10-11 06:27:17,148 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-11 06:27:17,148 INFO  L471      AbstractCegarLoop]: Abstraction has 5374 states and 8054 transitions.
[2024-10-11 06:27:17,149 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 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)
[2024-10-11 06:27:17,149 INFO  L276                IsEmpty]: Start isEmpty. Operand 5374 states and 8054 transitions.
[2024-10-11 06:27:17,156 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 475
[2024-10-11 06:27:17,157 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-11 06:27:17,157 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-11 06:27:17,157 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-11 06:27:17,158 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-11 06:27:17,158 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-11 06:27:17,158 INFO  L85        PathProgramCache]: Analyzing trace with hash -1159779064, now seen corresponding path program 1 times
[2024-10-11 06:27:17,158 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-11 06:27:17,159 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111764873]
[2024-10-11 06:27:17,159 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-11 06:27:17,159 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-11 06:27:17,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-11 06:27:18,438 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-11 06:27:18,439 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-11 06:27:18,440 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111764873]
[2024-10-11 06:27:18,440 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111764873] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-11 06:27:18,441 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-11 06:27:18,441 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-11 06:27:18,442 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675215226]
[2024-10-11 06:27:18,442 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-11 06:27:18,443 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-11 06:27:18,443 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-11 06:27:18,444 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-11 06:27:18,446 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-11 06:27:18,446 INFO  L87              Difference]: Start difference. First operand 5374 states and 8054 transitions. Second operand  has 5 states, 5 states have (on average 94.8) internal successors, (474), 4 states have internal predecessors, (474), 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)
[2024-10-11 06:27:18,741 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-11 06:27:18,742 INFO  L93              Difference]: Finished difference Result 15730 states and 23577 transitions.
[2024-10-11 06:27:18,742 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-11 06:27:18,743 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 94.8) internal successors, (474), 4 states have internal predecessors, (474), 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 474
[2024-10-11 06:27:18,744 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-11 06:27:18,796 INFO  L225             Difference]: With dead ends: 15730
[2024-10-11 06:27:18,797 INFO  L226             Difference]: Without dead ends: 10545
[2024-10-11 06:27:18,810 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-10-11 06:27:18,811 INFO  L432           NwaCegarLoop]: 8041 mSDtfsCounter, 7564 mSDsluCounter, 23837 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7564 SdHoareTripleChecker+Valid, 31878 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-11 06:27:18,811 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7564 Valid, 31878 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-11 06:27:18,831 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10545 states.
[2024-10-11 06:27:18,978 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10545 to 6110.
[2024-10-11 06:27:18,989 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6110 states, 6109 states have (on average 1.4990996889834671) internal successors, (9158), 6109 states have internal predecessors, (9158), 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)
[2024-10-11 06:27:19,009 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6110 states to 6110 states and 9158 transitions.
[2024-10-11 06:27:19,009 INFO  L78                 Accepts]: Start accepts. Automaton has 6110 states and 9158 transitions. Word has length 474
[2024-10-11 06:27:19,010 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-11 06:27:19,011 INFO  L471      AbstractCegarLoop]: Abstraction has 6110 states and 9158 transitions.
[2024-10-11 06:27:19,011 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 94.8) internal successors, (474), 4 states have internal predecessors, (474), 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)
[2024-10-11 06:27:19,011 INFO  L276                IsEmpty]: Start isEmpty. Operand 6110 states and 9158 transitions.
[2024-10-11 06:27:19,143 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3064
[2024-10-11 06:27:19,144 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-11 06:27:19,146 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-11 06:27:19,146 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-11 06:27:19,146 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-11 06:27:19,147 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-11 06:27:19,148 INFO  L85        PathProgramCache]: Analyzing trace with hash 1521529837, now seen corresponding path program 1 times
[2024-10-11 06:27:19,148 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-11 06:27:19,149 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548067014]
[2024-10-11 06:27:19,149 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-11 06:27:19,149 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms