./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 803cd42f
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 ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.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 272e9c9a5f36a2554793703c5d73a0d10ae846e63a9c621f2708481abf6615cc
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 04:48:19,932 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 04:48:19,994 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-22 04:48:19,998 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 04:48:19,999 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 04:48:20,026 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 04:48:20,027 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 04:48:20,027 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 04:48:20,028 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 04:48:20,029 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 04:48:20,029 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 04:48:20,029 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 04:48:20,030 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 04:48:20,032 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 04:48:20,032 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 04:48:20,032 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 04:48:20,033 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 04:48:20,033 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 04:48:20,033 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 04:48:20,033 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 04:48:20,033 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 04:48:20,034 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 04:48:20,035 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 04:48:20,035 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 04:48:20,038 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 04:48:20,038 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 04:48:20,038 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 04:48:20,038 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 04:48:20,039 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 04:48:20,039 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 04:48:20,039 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 04:48:20,039 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 04:48:20,039 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 04:48:20,039 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 04:48:20,040 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 04:48:20,040 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 04:48:20,041 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 04:48:20,042 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 04:48:20,042 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 04:48:20,042 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 -> 272e9c9a5f36a2554793703c5d73a0d10ae846e63a9c621f2708481abf6615cc
[2024-11-22 04:48:20,251 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 04:48:20,274 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 04:48:20,276 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 04:48:20,277 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 04:48:20,277 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 04:48:20,278 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c
[2024-11-22 04:48:21,701 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 04:48:22,037 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 04:48:22,037 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c
[2024-11-22 04:48:22,068 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa1e9d5de/0facffa0e6434b0882e63d9eeece83b3/FLAG7782670c9
[2024-11-22 04:48:22,083 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa1e9d5de/0facffa0e6434b0882e63d9eeece83b3
[2024-11-22 04:48:22,086 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 04:48:22,087 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 04:48:22,089 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 04:48:22,089 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 04:48:22,094 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 04:48:22,095 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:48:22" (1/1) ...
[2024-11-22 04:48:22,095 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6901f751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:22, skipping insertion in model container
[2024-11-22 04:48:22,096 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:48:22" (1/1) ...
[2024-11-22 04:48:22,173 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 04:48:22,468 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c[1245,1258]
[2024-11-22 04:48:22,982 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 04:48:22,990 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 04:48:23,000 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c[1245,1258]
[2024-11-22 04:48:23,313 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 04:48:23,327 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 04:48:23,327 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23 WrapperNode
[2024-11-22 04:48:23,328 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 04:48:23,328 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 04:48:23,328 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 04:48:23,328 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 04:48:23,334 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:23,551 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:25,173 INFO  L138                Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13096
[2024-11-22 04:48:25,174 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 04:48:25,175 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 04:48:25,175 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 04:48:25,176 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 04:48:25,186 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:25,186 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:25,515 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:25,766 INFO  L175           MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0].
[2024-11-22 04:48:25,766 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:25,767 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:26,096 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:26,209 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:26,272 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:26,318 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:26,510 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 04:48:26,511 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 04:48:26,511 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 04:48:26,511 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 04:48:26,511 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (1/1) ...
[2024-11-22 04:48:26,515 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 04:48:26,524 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 04:48:26,538 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-22 04:48:26,542 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-22 04:48:26,578 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 04:48:26,578 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 04:48:26,578 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-22 04:48:26,578 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 04:48:26,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 04:48:27,162 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 04:48:27,164 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 04:48:45,200 INFO  L?                        ?]: Removed 7082 outVars from TransFormulas that were not future-live.
[2024-11-22 04:48:45,200 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 04:48:45,257 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 04:48:45,258 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-22 04:48:45,259 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:48:45 BoogieIcfgContainer
[2024-11-22 04:48:45,259 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 04:48:45,261 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 04:48:45,262 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 04:48:45,264 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 04:48:45,265 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:48:22" (1/3) ...
[2024-11-22 04:48:45,265 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b48584b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:48:45, skipping insertion in model container
[2024-11-22 04:48:45,265 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:48:23" (2/3) ...
[2024-11-22 04:48:45,266 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b48584b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:48:45, skipping insertion in model container
[2024-11-22 04:48:45,266 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:48:45" (3/3) ...
[2024-11-22 04:48:45,267 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal35.c
[2024-11-22 04:48:45,283 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 04:48:45,284 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-22 04:48:45,396 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 04:48:45,401 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;@6147fb2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 04:48:45,402 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-22 04:48:45,418 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4308 states, 4306 states have (on average 1.5) internal successors, (6459), 4307 states have internal predecessors, (6459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:48:45,498 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1966
[2024-11-22 04:48:45,498 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 04:48:45,500 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 04:48:45,501 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 04:48:45,506 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 04:48:45,507 INFO  L85        PathProgramCache]: Analyzing trace with hash 1794592687, now seen corresponding path program 1 times
[2024-11-22 04:48:45,515 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 04:48:45,515 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056379877]
[2024-11-22 04:48:45,516 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 04:48:45,516 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 04:48:47,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 04:48:54,537 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 04:48:54,537 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 04:48:54,537 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056379877]
[2024-11-22 04:48:54,538 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056379877] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 04:48:54,538 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 04:48:54,538 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 04:48:54,540 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862456264]
[2024-11-22 04:48:54,540 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 04:48:54,547 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 04:48:54,548 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 04:48:54,569 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 04:48:54,570 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 04:48:54,580 INFO  L87              Difference]: Start difference. First operand  has 4308 states, 4306 states have (on average 1.5) internal successors, (6459), 4307 states have internal predecessors, (6459), 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 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:48:55,187 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 04:48:55,187 INFO  L93              Difference]: Finished difference Result 8514 states and 12769 transitions.
[2024-11-22 04:48:55,189 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 04:48:55,191 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 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 1965
[2024-11-22 04:48:55,199 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 04:48:55,231 INFO  L225             Difference]: With dead ends: 8514
[2024-11-22 04:48:55,231 INFO  L226             Difference]: Without dead ends: 4304
[2024-11-22 04:48:55,245 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 04:48:55,248 INFO  L432           NwaCegarLoop]: 6185 mSDtfsCounter, 4671 mSDsluCounter, 6184 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 12369 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-22 04:48:55,250 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4671 Valid, 12369 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-22 04:48:55,274 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4304 states.
[2024-11-22 04:48:55,386 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4304.
[2024-11-22 04:48:55,394 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4304 states, 4303 states have (on average 1.499419009993028) internal successors, (6452), 4303 states have internal predecessors, (6452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:48:55,406 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 6452 transitions.
[2024-11-22 04:48:55,408 INFO  L78                 Accepts]: Start accepts. Automaton has 4304 states and 6452 transitions. Word has length 1965
[2024-11-22 04:48:55,411 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 04:48:55,411 INFO  L471      AbstractCegarLoop]: Abstraction has 4304 states and 6452 transitions.
[2024-11-22 04:48:55,412 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:48:55,412 INFO  L276                IsEmpty]: Start isEmpty. Operand 4304 states and 6452 transitions.
[2024-11-22 04:48:55,467 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1967
[2024-11-22 04:48:55,468 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 04:48:55,469 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 04:48:55,469 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-22 04:48:55,469 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 04:48:55,470 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 04:48:55,471 INFO  L85        PathProgramCache]: Analyzing trace with hash 1661833658, now seen corresponding path program 1 times
[2024-11-22 04:48:55,471 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 04:48:55,471 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171070927]
[2024-11-22 04:48:55,472 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 04:48:55,472 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 04:48:56,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 04:49:00,514 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 04:49:00,514 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 04:49:00,514 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171070927]
[2024-11-22 04:49:00,514 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171070927] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 04:49:00,515 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 04:49:00,515 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 04:49:00,515 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074733005]
[2024-11-22 04:49:00,515 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 04:49:00,518 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 04:49:00,518 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 04:49:00,519 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 04:49:00,520 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-22 04:49:00,520 INFO  L87              Difference]: Start difference. First operand 4304 states and 6452 transitions. Second operand  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:00,988 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 04:49:00,989 INFO  L93              Difference]: Finished difference Result 8510 states and 12758 transitions.
[2024-11-22 04:49:00,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 04:49:00,991 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 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 1966
[2024-11-22 04:49:00,993 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 04:49:01,003 INFO  L225             Difference]: With dead ends: 8510
[2024-11-22 04:49:01,003 INFO  L226             Difference]: Without dead ends: 4304
[2024-11-22 04:49:01,010 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-22 04:49:01,011 INFO  L432           NwaCegarLoop]: 6185 mSDtfsCounter, 11103 mSDsluCounter, 6184 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11103 SdHoareTripleChecker+Valid, 12369 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-22 04:49:01,012 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11103 Valid, 12369 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-22 04:49:01,018 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4304 states.
[2024-11-22 04:49:01,055 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4304.
[2024-11-22 04:49:01,060 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4304 states, 4303 states have (on average 1.4991866139902394) internal successors, (6451), 4303 states have internal predecessors, (6451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:01,069 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 6451 transitions.
[2024-11-22 04:49:01,070 INFO  L78                 Accepts]: Start accepts. Automaton has 4304 states and 6451 transitions. Word has length 1966
[2024-11-22 04:49:01,072 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 04:49:01,072 INFO  L471      AbstractCegarLoop]: Abstraction has 4304 states and 6451 transitions.
[2024-11-22 04:49:01,073 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:01,073 INFO  L276                IsEmpty]: Start isEmpty. Operand 4304 states and 6451 transitions.
[2024-11-22 04:49:01,093 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1968
[2024-11-22 04:49:01,094 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 04:49:01,095 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 04:49:01,096 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-22 04:49:01,096 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 04:49:01,097 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 04:49:01,097 INFO  L85        PathProgramCache]: Analyzing trace with hash 1719805912, now seen corresponding path program 1 times
[2024-11-22 04:49:01,097 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 04:49:01,097 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787216598]
[2024-11-22 04:49:01,098 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 04:49:01,098 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 04:49:01,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 04:49:06,128 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 04:49:06,129 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 04:49:06,129 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787216598]
[2024-11-22 04:49:06,129 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787216598] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 04:49:06,129 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 04:49:06,129 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 04:49:06,129 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847223260]
[2024-11-22 04:49:06,129 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 04:49:06,136 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 04:49:06,136 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 04:49:06,142 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 04:49:06,143 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 04:49:06,143 INFO  L87              Difference]: Start difference. First operand 4304 states and 6451 transitions. Second operand  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:06,291 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 04:49:06,292 INFO  L93              Difference]: Finished difference Result 4308 states and 6455 transitions.
[2024-11-22 04:49:06,292 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 04:49:06,293 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 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 1967
[2024-11-22 04:49:06,295 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 04:49:06,305 INFO  L225             Difference]: With dead ends: 4308
[2024-11-22 04:49:06,305 INFO  L226             Difference]: Without dead ends: 4306
[2024-11-22 04:49:06,307 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
[2024-11-22 04:49:06,309 INFO  L432           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12892 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19341 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 04:49:06,311 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 04:49:06,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4306 states.
[2024-11-22 04:49:06,366 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 4306.
[2024-11-22 04:49:06,379 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4306 states, 4305 states have (on average 1.4989547038327526) internal successors, (6453), 4305 states have internal predecessors, (6453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:06,393 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 6453 transitions.
[2024-11-22 04:49:06,394 INFO  L78                 Accepts]: Start accepts. Automaton has 4306 states and 6453 transitions. Word has length 1967
[2024-11-22 04:49:06,396 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 04:49:06,396 INFO  L471      AbstractCegarLoop]: Abstraction has 4306 states and 6453 transitions.
[2024-11-22 04:49:06,397 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:06,397 INFO  L276                IsEmpty]: Start isEmpty. Operand 4306 states and 6453 transitions.
[2024-11-22 04:49:06,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1969
[2024-11-22 04:49:06,581 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 04:49:06,582 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 04:49:06,582 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-22 04:49:06,582 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 04:49:06,583 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 04:49:06,584 INFO  L85        PathProgramCache]: Analyzing trace with hash 1776083623, now seen corresponding path program 1 times
[2024-11-22 04:49:06,584 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 04:49:06,585 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85339937]
[2024-11-22 04:49:06,585 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 04:49:06,586 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 04:49:07,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 04:49:10,415 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 04:49:10,416 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 04:49:10,416 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85339937]
[2024-11-22 04:49:10,416 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85339937] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 04:49:10,416 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 04:49:10,416 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 04:49:10,417 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295534032]
[2024-11-22 04:49:10,417 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 04:49:10,423 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 04:49:10,423 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 04:49:10,424 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 04:49:10,424 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 04:49:10,425 INFO  L87              Difference]: Start difference. First operand 4306 states and 6453 transitions. Second operand  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:10,540 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 04:49:10,540 INFO  L93              Difference]: Finished difference Result 8516 states and 12763 transitions.
[2024-11-22 04:49:10,541 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 04:49:10,542 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 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 1968
[2024-11-22 04:49:10,544 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 04:49:10,562 INFO  L225             Difference]: With dead ends: 8516
[2024-11-22 04:49:10,563 INFO  L226             Difference]: Without dead ends: 4308
[2024-11-22 04:49:10,569 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
[2024-11-22 04:49:10,574 INFO  L432           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12888 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19337 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 04:49:10,574 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19337 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 04:49:10,583 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4308 states.
[2024-11-22 04:49:10,676 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 4308.
[2024-11-22 04:49:10,680 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4308 states, 4307 states have (on average 1.4987230090550268) internal successors, (6455), 4307 states have internal predecessors, (6455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:10,687 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4308 states to 4308 states and 6455 transitions.
[2024-11-22 04:49:10,688 INFO  L78                 Accepts]: Start accepts. Automaton has 4308 states and 6455 transitions. Word has length 1968
[2024-11-22 04:49:10,690 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 04:49:10,690 INFO  L471      AbstractCegarLoop]: Abstraction has 4308 states and 6455 transitions.
[2024-11-22 04:49:10,690 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:10,691 INFO  L276                IsEmpty]: Start isEmpty. Operand 4308 states and 6455 transitions.
[2024-11-22 04:49:10,710 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1970
[2024-11-22 04:49:10,710 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 04:49:10,711 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 04:49:10,712 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-22 04:49:10,712 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 04:49:10,712 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 04:49:10,713 INFO  L85        PathProgramCache]: Analyzing trace with hash -1873935727, now seen corresponding path program 1 times
[2024-11-22 04:49:10,713 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 04:49:10,713 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343872466]
[2024-11-22 04:49:10,713 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 04:49:10,714 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 04:49:20,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 04:49:23,381 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 04:49:23,382 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 04:49:23,382 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343872466]
[2024-11-22 04:49:23,383 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343872466] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 04:49:23,383 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 04:49:23,383 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-22 04:49:23,383 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740881032]
[2024-11-22 04:49:23,383 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 04:49:23,385 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 04:49:23,386 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 04:49:23,388 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 04:49:23,388 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-22 04:49:23,389 INFO  L87              Difference]: Start difference. First operand 4308 states and 6455 transitions. Second operand  has 6 states, 6 states have (on average 328.1666666666667) internal successors, (1969), 6 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:24,228 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 04:49:24,228 INFO  L93              Difference]: Finished difference Result 16063 states and 24076 transitions.
[2024-11-22 04:49:24,229 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-22 04:49:24,229 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 328.1666666666667) internal successors, (1969), 6 states have internal predecessors, (1969), 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 1969
[2024-11-22 04:49:24,236 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 04:49:24,297 INFO  L225             Difference]: With dead ends: 16063
[2024-11-22 04:49:24,297 INFO  L226             Difference]: Without dead ends: 8502
[2024-11-22 04:49:24,312 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-22 04:49:24,313 INFO  L432           NwaCegarLoop]: 6410 mSDtfsCounter, 14553 mSDsluCounter, 25423 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14553 SdHoareTripleChecker+Valid, 31833 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-22 04:49:24,313 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [14553 Valid, 31833 Invalid, 450 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-22 04:49:24,323 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8502 states.
[2024-11-22 04:49:24,400 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8502 to 4350.
[2024-11-22 04:49:24,406 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4350 states, 4349 states have (on average 1.498505403541044) internal successors, (6517), 4349 states have internal predecessors, (6517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:24,414 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4350 states to 4350 states and 6517 transitions.
[2024-11-22 04:49:24,415 INFO  L78                 Accepts]: Start accepts. Automaton has 4350 states and 6517 transitions. Word has length 1969
[2024-11-22 04:49:24,415 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 04:49:24,415 INFO  L471      AbstractCegarLoop]: Abstraction has 4350 states and 6517 transitions.
[2024-11-22 04:49:24,416 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 328.1666666666667) internal successors, (1969), 6 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:24,416 INFO  L276                IsEmpty]: Start isEmpty. Operand 4350 states and 6517 transitions.
[2024-11-22 04:49:24,436 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1971
[2024-11-22 04:49:24,436 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 04:49:24,437 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 04:49:24,437 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-22 04:49:24,437 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 04:49:24,438 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 04:49:24,438 INFO  L85        PathProgramCache]: Analyzing trace with hash -1658045929, now seen corresponding path program 1 times
[2024-11-22 04:49:24,438 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 04:49:24,438 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233218714]
[2024-11-22 04:49:24,439 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 04:49:24,439 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 04:49:25,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 04:49:29,053 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 04:49:29,053 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 04:49:29,053 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233218714]
[2024-11-22 04:49:29,054 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233218714] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 04:49:29,054 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 04:49:29,054 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-22 04:49:29,055 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262853016]
[2024-11-22 04:49:29,055 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 04:49:29,057 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 04:49:29,057 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 04:49:29,058 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 04:49:29,058 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-22 04:49:29,059 INFO  L87              Difference]: Start difference. First operand 4350 states and 6517 transitions. Second operand  has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:29,324 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 04:49:29,325 INFO  L93              Difference]: Finished difference Result 12720 states and 19059 transitions.
[2024-11-22 04:49:29,326 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-22 04:49:29,326 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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 1970
[2024-11-22 04:49:29,329 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 04:49:29,341 INFO  L225             Difference]: With dead ends: 12720
[2024-11-22 04:49:29,341 INFO  L226             Difference]: Without dead ends: 8468
[2024-11-22 04:49:29,351 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-22 04:49:29,352 INFO  L432           NwaCegarLoop]: 7791 mSDtfsCounter, 4572 mSDsluCounter, 28421 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4572 SdHoareTripleChecker+Valid, 36212 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 04:49:29,353 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4572 Valid, 36212 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 04:49:29,363 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8468 states.
[2024-11-22 04:49:29,454 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8468 to 7547.
[2024-11-22 04:49:29,462 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7547 states, 7546 states have (on average 1.4992048767558972) internal successors, (11313), 7546 states have internal predecessors, (11313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:29,470 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7547 states to 7547 states and 11313 transitions.
[2024-11-22 04:49:29,471 INFO  L78                 Accepts]: Start accepts. Automaton has 7547 states and 11313 transitions. Word has length 1970
[2024-11-22 04:49:29,474 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 04:49:29,475 INFO  L471      AbstractCegarLoop]: Abstraction has 7547 states and 11313 transitions.
[2024-11-22 04:49:29,475 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 04:49:29,477 INFO  L276                IsEmpty]: Start isEmpty. Operand 7547 states and 11313 transitions.
[2024-11-22 04:49:29,558 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1971
[2024-11-22 04:49:29,558 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 04:49:29,559 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, 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[2024-11-22 04:49:29,560 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-22 04:49:29,560 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 04:49:29,560 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 04:49:29,560 INFO  L85        PathProgramCache]: Analyzing trace with hash -188255900, now seen corresponding path program 1 times
[2024-11-22 04:49:29,561 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 04:49:29,561 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094715074]
[2024-11-22 04:49:29,561 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 04:49:29,561 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms