./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.cambridge.2.prop2-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 61a67961
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop2-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d6945e757af8fae824d3662c3bfc2dc481d8e6b96d5bde785e95f018b58da89e
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m
[2024-10-14 06:02:30,018 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-14 06:02:30,065 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-10-14 06:02:30,069 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-14 06:02:30,070 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-14 06:02:30,089 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-14 06:02:30,089 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-14 06:02:30,090 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-14 06:02:30,090 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-14 06:02:30,091 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-14 06:02:30,091 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-14 06:02:30,091 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-14 06:02:30,092 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-14 06:02:30,092 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-14 06:02:30,093 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-14 06:02:30,093 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-14 06:02:30,093 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-14 06:02:30,094 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-14 06:02:30,094 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-14 06:02:30,094 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-14 06:02:30,095 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-14 06:02:30,095 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-14 06:02:30,095 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-14 06:02:30,096 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-14 06:02:30,096 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-14 06:02:30,096 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-14 06:02:30,097 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-14 06:02:30,097 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-14 06:02:30,097 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-14 06:02:30,098 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-14 06:02:30,098 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-14 06:02:30,098 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-14 06:02:30,098 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-14 06:02:30,099 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-14 06:02:30,099 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-14 06:02:30,099 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-14 06:02:30,100 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-14 06:02:30,100 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-14 06:02:30,100 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-14 06:02:30,100 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6945e757af8fae824d3662c3bfc2dc481d8e6b96d5bde785e95f018b58da89e
[2024-10-14 06:02:30,382 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-14 06:02:30,409 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-14 06:02:30,412 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-14 06:02:30,415 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-14 06:02:30,415 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-14 06:02:30,416 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop2-back-serstep.c
[2024-10-14 06:02:31,872 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-14 06:02:32,256 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-14 06:02:32,258 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop2-back-serstep.c
[2024-10-14 06:02:32,290 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c324c5901/6c523701d74144c59b1a7535f0e17f7b/FLAGc54de1a12
[2024-10-14 06:02:32,436 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c324c5901/6c523701d74144c59b1a7535f0e17f7b
[2024-10-14 06:02:32,439 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-14 06:02:32,443 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-14 06:02:32,444 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-14 06:02:32,445 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-14 06:02:32,451 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-14 06:02:32,452 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:02:32" (1/1) ...
[2024-10-14 06:02:32,455 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4a3b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:32, skipping insertion in model container
[2024-10-14 06:02:32,455 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:02:32" (1/1) ...
[2024-10-14 06:02:32,572 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-14 06:02:32,827 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.cambridge.2.prop2-back-serstep.c[1177,1190]
[2024-10-14 06:02:33,491 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-14 06:02:33,557 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-14 06:02:33,568 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.cambridge.2.prop2-back-serstep.c[1177,1190]
[2024-10-14 06:02:33,891 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-14 06:02:33,909 INFO  L204         MainTranslator]: Completed translation
[2024-10-14 06:02:33,909 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33 WrapperNode
[2024-10-14 06:02:33,909 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-14 06:02:33,910 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-14 06:02:33,910 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-14 06:02:33,910 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-14 06:02:33,917 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:34,162 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:36,115 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 17768
[2024-10-14 06:02:36,115 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-14 06:02:36,116 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-14 06:02:36,116 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-14 06:02:36,117 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-14 06:02:36,128 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:36,128 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:36,675 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:36,993 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].
[2024-10-14 06:02:36,993 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:36,993 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:37,528 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:37,608 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:37,685 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:37,754 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:37,974 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-14 06:02:38,108 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-14 06:02:38,108 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-14 06:02:38,108 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-14 06:02:38,109 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (1/1) ...
[2024-10-14 06:02:38,127 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-14 06:02:38,144 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-14 06:02:38,162 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-10-14 06:02:38,164 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-10-14 06:02:38,202 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-14 06:02:38,202 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-14 06:02:38,202 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-14 06:02:38,202 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-14 06:02:39,020 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-14 06:02:39,022 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-14 06:03:07,687 INFO  L?                        ?]: Removed 9677 outVars from TransFormulas that were not future-live.
[2024-10-14 06:03:07,687 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-14 06:03:07,950 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-14 06:03:07,951 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-14 06:03:07,951 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:03:07 BoogieIcfgContainer
[2024-10-14 06:03:07,952 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-14 06:03:07,954 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-14 06:03:07,955 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-14 06:03:07,958 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-14 06:03:07,958 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:02:32" (1/3) ...
[2024-10-14 06:03:07,959 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67766101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:03:07, skipping insertion in model container
[2024-10-14 06:03:07,959 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:33" (2/3) ...
[2024-10-14 06:03:07,960 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67766101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:03:07, skipping insertion in model container
[2024-10-14 06:03:07,961 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:03:07" (3/3) ...
[2024-10-14 06:03:07,962 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.2.prop2-back-serstep.c
[2024-10-14 06:03:07,979 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-14 06:03:07,980 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-14 06:03:08,159 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-14 06:03:08,166 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;@7204c8a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-14 06:03:08,167 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-14 06:03:08,190 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6123 states, 6121 states have (on average 1.5062898219245222) internal successors, (9220), 6122 states have internal predecessors, (9220), 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)
[2024-10-14 06:03:08,224 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 383
[2024-10-14 06:03:08,224 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 06:03:08,227 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]
[2024-10-14 06:03:08,228 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 06:03:08,232 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 06:03:08,234 INFO  L85        PathProgramCache]: Analyzing trace with hash 102023663, now seen corresponding path program 1 times
[2024-10-14 06:03:08,242 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 06:03:08,243 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473383968]
[2024-10-14 06:03:08,243 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 06:03:08,244 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 06:03:08,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 06:03:10,656 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 06:03:10,658 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 06:03:10,658 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473383968]
[2024-10-14 06:03:10,659 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473383968] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 06:03:10,659 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 06:03:10,659 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-14 06:03:10,661 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911262799]
[2024-10-14 06:03:10,661 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 06:03:10,667 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-14 06:03:10,667 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 06:03:10,689 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-14 06:03:10,690 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-14 06:03:10,708 INFO  L87              Difference]: Start difference. First operand  has 6123 states, 6121 states have (on average 1.5062898219245222) internal successors, (9220), 6122 states have internal predecessors, (9220), 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 5 states, 5 states have (on average 76.4) internal successors, (382), 4 states have internal predecessors, (382), 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)
[2024-10-14 06:03:16,305 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 06:03:16,305 INFO  L93              Difference]: Finished difference Result 17937 states and 27016 transitions.
[2024-10-14 06:03:16,308 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-14 06:03:16,310 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 76.4) internal successors, (382), 4 states have internal predecessors, (382), 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 382
[2024-10-14 06:03:16,311 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 06:03:16,376 INFO  L225             Difference]: With dead ends: 17937
[2024-10-14 06:03:16,377 INFO  L226             Difference]: Without dead ends: 11979
[2024-10-14 06:03:16,395 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-10-14 06:03:16,398 INFO  L432           NwaCegarLoop]: 7371 mSDtfsCounter, 8810 mSDsluCounter, 21989 mSDsCounter, 0 mSdLazyCounter, 7265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8810 SdHoareTripleChecker+Valid, 29360 SdHoareTripleChecker+Invalid, 7266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2024-10-14 06:03:16,400 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [8810 Valid, 29360 Invalid, 7266 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 7265 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2024-10-14 06:03:16,441 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11979 states.
[2024-10-14 06:03:16,636 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11979 to 6473.
[2024-10-14 06:03:16,650 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6473 states, 6472 states have (on average 1.5054079110012362) internal successors, (9743), 6472 states have internal predecessors, (9743), 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)
[2024-10-14 06:03:16,675 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6473 states to 6473 states and 9743 transitions.
[2024-10-14 06:03:16,677 INFO  L78                 Accepts]: Start accepts. Automaton has 6473 states and 9743 transitions. Word has length 382
[2024-10-14 06:03:16,680 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 06:03:16,680 INFO  L471      AbstractCegarLoop]: Abstraction has 6473 states and 9743 transitions.
[2024-10-14 06:03:16,681 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 76.4) internal successors, (382), 4 states have internal predecessors, (382), 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)
[2024-10-14 06:03:16,681 INFO  L276                IsEmpty]: Start isEmpty. Operand 6473 states and 9743 transitions.
[2024-10-14 06:03:16,688 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 385
[2024-10-14 06:03:16,688 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 06:03:16,689 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]
[2024-10-14 06:03:16,689 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-14 06:03:16,690 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 06:03:16,691 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 06:03:16,691 INFO  L85        PathProgramCache]: Analyzing trace with hash -391321076, now seen corresponding path program 1 times
[2024-10-14 06:03:16,692 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 06:03:16,692 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498545661]
[2024-10-14 06:03:16,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 06:03:16,693 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 06:03:16,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 06:03:17,795 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 06:03:17,795 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 06:03:17,795 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498545661]
[2024-10-14 06:03:17,795 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498545661] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 06:03:17,795 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 06:03:17,796 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-14 06:03:17,796 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78898822]
[2024-10-14 06:03:17,796 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 06:03:17,799 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-14 06:03:17,799 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 06:03:17,801 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-14 06:03:17,801 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-14 06:03:17,802 INFO  L87              Difference]: Start difference. First operand 6473 states and 9743 transitions. Second operand  has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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)
[2024-10-14 06:03:17,924 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 06:03:17,925 INFO  L93              Difference]: Finished difference Result 6477 states and 9747 transitions.
[2024-10-14 06:03:17,925 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-14 06:03:17,926 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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 384
[2024-10-14 06:03:17,928 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 06:03:17,950 INFO  L225             Difference]: With dead ends: 6477
[2024-10-14 06:03:17,950 INFO  L226             Difference]: Without dead ends: 6475
[2024-10-14 06:03:17,954 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
[2024-10-14 06:03:17,957 INFO  L432           NwaCegarLoop]: 9215 mSDtfsCounter, 0 mSDsluCounter, 18425 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27640 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-14 06:03:17,957 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27640 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-14 06:03:17,968 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6475 states.
[2024-10-14 06:03:18,065 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6475 to 6475.
[2024-10-14 06:03:18,087 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6475 states, 6474 states have (on average 1.5052517763361137) internal successors, (9745), 6474 states have internal predecessors, (9745), 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)
[2024-10-14 06:03:18,112 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6475 states to 6475 states and 9745 transitions.
[2024-10-14 06:03:18,112 INFO  L78                 Accepts]: Start accepts. Automaton has 6475 states and 9745 transitions. Word has length 384
[2024-10-14 06:03:18,113 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 06:03:18,114 INFO  L471      AbstractCegarLoop]: Abstraction has 6475 states and 9745 transitions.
[2024-10-14 06:03:18,114 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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)
[2024-10-14 06:03:18,114 INFO  L276                IsEmpty]: Start isEmpty. Operand 6475 states and 9745 transitions.
[2024-10-14 06:03:18,120 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 386
[2024-10-14 06:03:18,120 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 06:03:18,120 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]
[2024-10-14 06:03:18,120 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-14 06:03:18,121 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 06:03:18,121 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 06:03:18,122 INFO  L85        PathProgramCache]: Analyzing trace with hash 755646142, now seen corresponding path program 1 times
[2024-10-14 06:03:18,122 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 06:03:18,122 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004321553]
[2024-10-14 06:03:18,122 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 06:03:18,123 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 06:03:18,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 06:03:19,013 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 06:03:19,014 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 06:03:19,014 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004321553]
[2024-10-14 06:03:19,014 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004321553] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 06:03:19,014 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 06:03:19,014 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-14 06:03:19,015 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370312143]
[2024-10-14 06:03:19,015 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 06:03:19,019 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-14 06:03:19,020 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 06:03:19,020 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-14 06:03:19,021 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-14 06:03:19,021 INFO  L87              Difference]: Start difference. First operand 6475 states and 9745 transitions. Second operand  has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 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)
[2024-10-14 06:03:19,185 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 06:03:19,186 INFO  L93              Difference]: Finished difference Result 12436 states and 18721 transitions.
[2024-10-14 06:03:19,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-14 06:03:19,187 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 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 385
[2024-10-14 06:03:19,188 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 06:03:19,215 INFO  L225             Difference]: With dead ends: 12436
[2024-10-14 06:03:19,219 INFO  L226             Difference]: Without dead ends: 6477
[2024-10-14 06:03:19,230 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
[2024-10-14 06:03:19,233 INFO  L432           NwaCegarLoop]: 9215 mSDtfsCounter, 0 mSDsluCounter, 18422 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27637 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
[2024-10-14 06:03:19,233 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27637 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-14 06:03:19,245 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6477 states.
[2024-10-14 06:03:19,344 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6477 to 6477.
[2024-10-14 06:03:19,365 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6477 states, 6476 states have (on average 1.5050957381099443) internal successors, (9747), 6476 states have internal predecessors, (9747), 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)
[2024-10-14 06:03:19,384 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6477 states to 6477 states and 9747 transitions.
[2024-10-14 06:03:19,384 INFO  L78                 Accepts]: Start accepts. Automaton has 6477 states and 9747 transitions. Word has length 385
[2024-10-14 06:03:19,385 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 06:03:19,385 INFO  L471      AbstractCegarLoop]: Abstraction has 6477 states and 9747 transitions.
[2024-10-14 06:03:19,386 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 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)
[2024-10-14 06:03:19,386 INFO  L276                IsEmpty]: Start isEmpty. Operand 6477 states and 9747 transitions.
[2024-10-14 06:03:19,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 387
[2024-10-14 06:03:19,392 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 06:03:19,395 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]
[2024-10-14 06:03:19,395 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-14 06:03:19,396 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 06:03:19,396 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 06:03:19,396 INFO  L85        PathProgramCache]: Analyzing trace with hash 852230437, now seen corresponding path program 1 times
[2024-10-14 06:03:19,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 06:03:19,396 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021621158]
[2024-10-14 06:03:19,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 06:03:19,397 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 06:03:19,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 06:03:20,213 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 06:03:20,213 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 06:03:20,214 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021621158]
[2024-10-14 06:03:20,214 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021621158] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 06:03:20,214 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 06:03:20,214 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-14 06:03:20,214 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029206421]
[2024-10-14 06:03:20,214 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 06:03:20,215 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-14 06:03:20,215 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 06:03:20,217 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-14 06:03:20,217 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-14 06:03:20,217 INFO  L87              Difference]: Start difference. First operand 6477 states and 9747 transitions. Second operand  has 5 states, 5 states have (on average 77.2) internal successors, (386), 4 states have internal predecessors, (386), 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)
[2024-10-14 06:03:20,484 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 06:03:20,485 INFO  L93              Difference]: Finished difference Result 18034 states and 27151 transitions.
[2024-10-14 06:03:20,486 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-14 06:03:20,486 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 77.2) internal successors, (386), 4 states have internal predecessors, (386), 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 386
[2024-10-14 06:03:20,487 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 06:03:20,515 INFO  L225             Difference]: With dead ends: 18034
[2024-10-14 06:03:20,516 INFO  L226             Difference]: Without dead ends: 12073
[2024-10-14 06:03:20,532 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
[2024-10-14 06:03:20,533 INFO  L432           NwaCegarLoop]: 9213 mSDtfsCounter, 8822 mSDsluCounter, 27389 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8822 SdHoareTripleChecker+Valid, 36602 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
[2024-10-14 06:03:20,534 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [8822 Valid, 36602 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-14 06:03:20,551 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12073 states.
[2024-10-14 06:03:20,688 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12073 to 6712.
[2024-10-14 06:03:20,699 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6712 states, 6711 states have (on average 1.5046937863209655) internal successors, (10098), 6711 states have internal predecessors, (10098), 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)
[2024-10-14 06:03:20,716 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6712 states to 6712 states and 10098 transitions.
[2024-10-14 06:03:20,716 INFO  L78                 Accepts]: Start accepts. Automaton has 6712 states and 10098 transitions. Word has length 386
[2024-10-14 06:03:20,717 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 06:03:20,717 INFO  L471      AbstractCegarLoop]: Abstraction has 6712 states and 10098 transitions.
[2024-10-14 06:03:20,718 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 77.2) internal successors, (386), 4 states have internal predecessors, (386), 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)
[2024-10-14 06:03:20,718 INFO  L276                IsEmpty]: Start isEmpty. Operand 6712 states and 10098 transitions.
[2024-10-14 06:03:20,897 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3232
[2024-10-14 06:03:20,897 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 06:03:20,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-14 06:03:20,900 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-14 06:03:20,901 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 06:03:20,901 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 06:03:20,903 INFO  L85        PathProgramCache]: Analyzing trace with hash 1442784478, now seen corresponding path program 1 times
[2024-10-14 06:03:20,903 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 06:03:20,903 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721682598]
[2024-10-14 06:03:20,904 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 06:03:20,904 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 06:03:27,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 06:03:35,050 INFO  L134       CoverageAnalysis]: Checked inductivity of 298 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 06:03:35,051 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 06:03:35,051 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721682598]
[2024-10-14 06:03:35,051 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721682598] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 06:03:35,051 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 06:03:35,052 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-14 06:03:35,053 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838009820]
[2024-10-14 06:03:35,054 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 06:03:35,057 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-14 06:03:35,058 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 06:03:35,064 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-14 06:03:35,065 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-14 06:03:35,066 INFO  L87              Difference]: Start difference. First operand 6712 states and 10098 transitions. Second operand  has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 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)
[2024-10-14 06:03:35,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 06:03:35,176 INFO  L93              Difference]: Finished difference Result 12674 states and 19075 transitions.
[2024-10-14 06:03:35,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-14 06:03:35,178 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 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 3231
[2024-10-14 06:03:35,181 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 06:03:35,195 INFO  L225             Difference]: With dead ends: 12674
[2024-10-14 06:03:35,195 INFO  L226             Difference]: Without dead ends: 6713
[2024-10-14 06:03:35,206 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-14 06:03:35,209 INFO  L432           NwaCegarLoop]: 9216 mSDtfsCounter, 0 mSDsluCounter, 9211 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18427 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-14 06:03:35,209 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18427 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-14 06:03:35,221 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6713 states.
[2024-10-14 06:03:35,318 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6713 to 6713.
[2024-10-14 06:03:35,331 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6713 states, 6712 states have (on average 1.5046185935637664) internal successors, (10099), 6712 states have internal predecessors, (10099), 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)
[2024-10-14 06:03:35,350 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 10099 transitions.
[2024-10-14 06:03:35,350 INFO  L78                 Accepts]: Start accepts. Automaton has 6713 states and 10099 transitions. Word has length 3231
[2024-10-14 06:03:35,354 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 06:03:35,354 INFO  L471      AbstractCegarLoop]: Abstraction has 6713 states and 10099 transitions.
[2024-10-14 06:03:35,356 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 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)
[2024-10-14 06:03:35,356 INFO  L276                IsEmpty]: Start isEmpty. Operand 6713 states and 10099 transitions.
[2024-10-14 06:03:35,587 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3232
[2024-10-14 06:03:35,587 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 06:03:35,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-10-14 06:03:35,590 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-14 06:03:35,591 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 06:03:35,591 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 06:03:35,593 INFO  L85        PathProgramCache]: Analyzing trace with hash 1664393615, now seen corresponding path program 1 times
[2024-10-14 06:03:35,593 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 06:03:35,593 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886587386]
[2024-10-14 06:03:35,594 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 06:03:35,594 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms