./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.needham.3.prop2-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version fca748b1
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.needham.3.prop2-func-interl.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 cd0681b440abfcb019b4847aa7480adf2cb07ebcbfbab0f8c913a2f410c53f5c
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m
[2024-11-20 01:35:50,202 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-20 01:35:50,260 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-20 01:35:50,267 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-20 01:35:50,267 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-20 01:35:50,287 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-20 01:35:50,287 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-20 01:35:50,287 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-20 01:35:50,287 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-20 01:35:50,288 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-20 01:35:50,288 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-20 01:35:50,288 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-20 01:35:50,289 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-20 01:35:50,291 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-20 01:35:50,291 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-20 01:35:50,292 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-20 01:35:50,292 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-20 01:35:50,292 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-20 01:35:50,292 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-20 01:35:50,292 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-20 01:35:50,293 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-20 01:35:50,296 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-20 01:35:50,297 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-20 01:35:50,297 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-20 01:35:50,297 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-20 01:35:50,297 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-20 01:35:50,297 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-20 01:35:50,297 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-20 01:35:50,297 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-20 01:35:50,298 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-20 01:35:50,298 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-20 01:35:50,298 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-20 01:35:50,298 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-20 01:35:50,298 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-20 01:35:50,298 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-20 01:35:50,298 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-20 01:35:50,299 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-20 01:35:50,299 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-20 01:35:50,299 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-20 01:35:50,299 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 -> cd0681b440abfcb019b4847aa7480adf2cb07ebcbfbab0f8c913a2f410c53f5c
[2024-11-20 01:35:50,561 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-20 01:35:50,585 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-20 01:35:50,588 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-20 01:35:50,589 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-20 01:35:50,589 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-20 01:35:50,590 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-func-interl.c
[2024-11-20 01:35:51,877 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-20 01:35:52,292 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-20 01:35:52,293 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-func-interl.c
[2024-11-20 01:35:52,325 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74ef030df/65727a2d207741b1a9ad981ab097ca4a/FLAG55ff35484
[2024-11-20 01:35:52,460 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74ef030df/65727a2d207741b1a9ad981ab097ca4a
[2024-11-20 01:35:52,463 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-20 01:35:52,464 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-20 01:35:52,466 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-20 01:35:52,466 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-20 01:35:52,471 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-20 01:35:52,472 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:35:52" (1/1) ...
[2024-11-20 01:35:52,472 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ce6b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:52, skipping insertion in model container
[2024-11-20 01:35:52,473 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:35:52" (1/1) ...
[2024-11-20 01:35:52,553 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-20 01:35:52,802 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.needham.3.prop2-func-interl.c[1174,1187]
[2024-11-20 01:35:53,435 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-20 01:35:53,448 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-20 01:35:53,461 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.needham.3.prop2-func-interl.c[1174,1187]
[2024-11-20 01:35:53,831 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-20 01:35:53,843 INFO  L204         MainTranslator]: Completed translation
[2024-11-20 01:35:53,843 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53 WrapperNode
[2024-11-20 01:35:53,843 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-20 01:35:53,845 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-20 01:35:53,845 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-20 01:35:53,845 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-20 01:35:53,850 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:53,969 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:56,090 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21127
[2024-11-20 01:35:56,090 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-20 01:35:56,091 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-20 01:35:56,091 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-20 01:35:56,091 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-20 01:35:56,111 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:56,111 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:56,637 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:57,169 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-20 01:35:57,171 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:57,172 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:58,056 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:58,207 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:58,409 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:58,551 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:59,024 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-20 01:35:59,034 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-20 01:35:59,034 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-20 01:35:59,034 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-20 01:35:59,035 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (1/1) ...
[2024-11-20 01:35:59,047 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-20 01:35:59,064 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-20 01:35:59,095 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)
[2024-11-20 01:35:59,104 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
[2024-11-20 01:35:59,146 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-20 01:35:59,146 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-20 01:35:59,146 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-20 01:35:59,146 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-20 01:35:59,973 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-20 01:35:59,975 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-20 01:36:36,823 INFO  L?                        ?]: Removed 11377 outVars from TransFormulas that were not future-live.
[2024-11-20 01:36:36,824 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-20 01:36:36,897 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-20 01:36:36,897 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-20 01:36:36,898 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:36:36 BoogieIcfgContainer
[2024-11-20 01:36:36,899 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-20 01:36:36,901 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-20 01:36:36,901 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-20 01:36:36,904 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-20 01:36:36,904 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:35:52" (1/3) ...
[2024-11-20 01:36:36,905 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f57765e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:36:36, skipping insertion in model container
[2024-11-20 01:36:36,906 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:53" (2/3) ...
[2024-11-20 01:36:36,906 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f57765e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:36:36, skipping insertion in model container
[2024-11-20 01:36:36,906 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:36:36" (3/3) ...
[2024-11-20 01:36:36,907 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.needham.3.prop2-func-interl.c
[2024-11-20 01:36:36,920 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-20 01:36:36,921 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-20 01:36:37,065 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-20 01:36:37,073 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;@2f1a755d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-20 01:36:37,073 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-20 01:36:37,093 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7701 states, 7699 states have (on average 1.5038316664501883) internal successors, (11578), 7700 states have internal predecessors, (11578), 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)
[2024-11-20 01:36:37,117 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 314
[2024-11-20 01:36:37,117 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 01:36:37,118 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]
[2024-11-20 01:36:37,119 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 01:36:37,123 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 01:36:37,123 INFO  L85        PathProgramCache]: Analyzing trace with hash -76029620, now seen corresponding path program 1 times
[2024-11-20 01:36:37,131 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 01:36:37,131 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486099211]
[2024-11-20 01:36:37,131 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 01:36:37,132 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 01:36:37,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 01:36:38,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-20 01:36:38,416 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 01:36:38,416 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486099211]
[2024-11-20 01:36:38,416 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486099211] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-20 01:36:38,417 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-20 01:36:38,417 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-20 01:36:38,418 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959789214]
[2024-11-20 01:36:38,419 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-20 01:36:38,423 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-20 01:36:38,424 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 01:36:38,445 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-20 01:36:38,446 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-20 01:36:38,460 INFO  L87              Difference]: Start difference. First operand  has 7701 states, 7699 states have (on average 1.5038316664501883) internal successors, (11578), 7700 states have internal predecessors, (11578), 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 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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)
[2024-11-20 01:36:38,704 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-20 01:36:38,705 INFO  L93              Difference]: Finished difference Result 15163 states and 22801 transitions.
[2024-11-20 01:36:38,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-20 01:36:38,707 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 313
[2024-11-20 01:36:38,709 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-20 01:36:38,747 INFO  L225             Difference]: With dead ends: 15163
[2024-11-20 01:36:38,747 INFO  L226             Difference]: Without dead ends: 7700
[2024-11-20 01:36:38,764 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
[2024-11-20 01:36:38,767 INFO  L432           NwaCegarLoop]: 11572 mSDtfsCounter, 0 mSDsluCounter, 23138 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34710 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-20 01:36:38,768 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34710 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-20 01:36:38,794 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7700 states.
[2024-11-20 01:36:38,930 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7700 to 7700.
[2024-11-20 01:36:38,942 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7700 states, 7699 states have (on average 1.5035718924535655) internal successors, (11576), 7699 states have internal predecessors, (11576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-20 01:36:38,954 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7700 states to 7700 states and 11576 transitions.
[2024-11-20 01:36:38,956 INFO  L78                 Accepts]: Start accepts. Automaton has 7700 states and 11576 transitions. Word has length 313
[2024-11-20 01:36:38,959 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-20 01:36:38,960 INFO  L471      AbstractCegarLoop]: Abstraction has 7700 states and 11576 transitions.
[2024-11-20 01:36:38,960 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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)
[2024-11-20 01:36:38,960 INFO  L276                IsEmpty]: Start isEmpty. Operand 7700 states and 11576 transitions.
[2024-11-20 01:36:38,965 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 315
[2024-11-20 01:36:38,965 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 01:36:38,965 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]
[2024-11-20 01:36:38,966 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-20 01:36:38,966 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 01:36:38,966 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 01:36:38,966 INFO  L85        PathProgramCache]: Analyzing trace with hash 1939746231, now seen corresponding path program 1 times
[2024-11-20 01:36:38,966 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 01:36:38,966 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985573024]
[2024-11-20 01:36:38,967 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 01:36:38,967 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 01:36:39,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 01:36:39,504 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-20 01:36:39,506 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 01:36:39,506 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985573024]
[2024-11-20 01:36:39,506 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985573024] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-20 01:36:39,506 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-20 01:36:39,506 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-20 01:36:39,507 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953878226]
[2024-11-20 01:36:39,507 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-20 01:36:39,508 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-20 01:36:39,508 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 01:36:39,509 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-20 01:36:39,509 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-20 01:36:39,509 INFO  L87              Difference]: Start difference. First operand 7700 states and 11576 transitions. Second operand  has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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)
[2024-11-20 01:36:39,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-20 01:36:39,733 INFO  L93              Difference]: Finished difference Result 15164 states and 22799 transitions.
[2024-11-20 01:36:39,734 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-20 01:36:39,734 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 314
[2024-11-20 01:36:39,735 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-20 01:36:39,756 INFO  L225             Difference]: With dead ends: 15164
[2024-11-20 01:36:39,756 INFO  L226             Difference]: Without dead ends: 7702
[2024-11-20 01:36:39,768 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
[2024-11-20 01:36:39,769 INFO  L432           NwaCegarLoop]: 11572 mSDtfsCounter, 0 mSDsluCounter, 23134 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34706 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-20 01:36:39,769 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34706 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-20 01:36:39,781 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7702 states.
[2024-11-20 01:36:39,888 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7702 to 7702.
[2024-11-20 01:36:39,903 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7702 states, 7701 states have (on average 1.5034411115439554) internal successors, (11578), 7701 states have internal predecessors, (11578), 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)
[2024-11-20 01:36:39,921 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 11578 transitions.
[2024-11-20 01:36:39,922 INFO  L78                 Accepts]: Start accepts. Automaton has 7702 states and 11578 transitions. Word has length 314
[2024-11-20 01:36:39,923 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-20 01:36:39,924 INFO  L471      AbstractCegarLoop]: Abstraction has 7702 states and 11578 transitions.
[2024-11-20 01:36:39,925 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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)
[2024-11-20 01:36:39,925 INFO  L276                IsEmpty]: Start isEmpty. Operand 7702 states and 11578 transitions.
[2024-11-20 01:36:39,931 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 316
[2024-11-20 01:36:39,931 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 01:36:39,932 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]
[2024-11-20 01:36:39,932 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-20 01:36:39,933 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 01:36:39,933 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 01:36:39,933 INFO  L85        PathProgramCache]: Analyzing trace with hash -1095372923, now seen corresponding path program 1 times
[2024-11-20 01:36:39,934 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 01:36:39,934 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557747335]
[2024-11-20 01:36:39,935 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 01:36:39,935 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 01:36:40,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 01:36:40,491 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-20 01:36:40,492 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 01:36:40,493 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557747335]
[2024-11-20 01:36:40,493 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557747335] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-20 01:36:40,493 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-20 01:36:40,493 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-20 01:36:40,493 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66984173]
[2024-11-20 01:36:40,493 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-20 01:36:40,494 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-20 01:36:40,494 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 01:36:40,495 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-20 01:36:40,495 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-20 01:36:40,496 INFO  L87              Difference]: Start difference. First operand 7702 states and 11578 transitions. Second operand  has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 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)
[2024-11-20 01:36:40,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-20 01:36:40,766 INFO  L93              Difference]: Finished difference Result 15168 states and 22803 transitions.
[2024-11-20 01:36:40,767 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-20 01:36:40,767 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 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 315
[2024-11-20 01:36:40,768 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-20 01:36:40,788 INFO  L225             Difference]: With dead ends: 15168
[2024-11-20 01:36:40,788 INFO  L226             Difference]: Without dead ends: 7704
[2024-11-20 01:36:40,797 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-20 01:36:40,801 INFO  L432           NwaCegarLoop]: 11572 mSDtfsCounter, 0 mSDsluCounter, 34688 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46260 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-20 01:36:40,801 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46260 Invalid, 36 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-20 01:36:40,812 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7704 states.
[2024-11-20 01:36:40,914 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7704 to 7704.
[2024-11-20 01:36:40,925 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7704 states, 7703 states have (on average 1.503310398546021) internal successors, (11580), 7703 states have internal predecessors, (11580), 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)
[2024-11-20 01:36:40,940 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7704 states to 7704 states and 11580 transitions.
[2024-11-20 01:36:40,941 INFO  L78                 Accepts]: Start accepts. Automaton has 7704 states and 11580 transitions. Word has length 315
[2024-11-20 01:36:40,941 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-20 01:36:40,942 INFO  L471      AbstractCegarLoop]: Abstraction has 7704 states and 11580 transitions.
[2024-11-20 01:36:40,942 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 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)
[2024-11-20 01:36:40,942 INFO  L276                IsEmpty]: Start isEmpty. Operand 7704 states and 11580 transitions.
[2024-11-20 01:36:40,945 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 317
[2024-11-20 01:36:40,945 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 01:36:40,948 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]
[2024-11-20 01:36:40,948 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-20 01:36:40,948 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 01:36:40,949 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 01:36:40,949 INFO  L85        PathProgramCache]: Analyzing trace with hash 1312066558, now seen corresponding path program 1 times
[2024-11-20 01:36:40,949 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 01:36:40,950 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331046749]
[2024-11-20 01:36:40,950 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 01:36:40,950 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 01:36:41,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 01:36:42,272 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-20 01:36:42,273 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 01:36:42,273 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331046749]
[2024-11-20 01:36:42,273 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331046749] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-20 01:36:42,273 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-20 01:36:42,273 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-20 01:36:42,274 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596131876]
[2024-11-20 01:36:42,274 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-20 01:36:42,274 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-20 01:36:42,274 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 01:36:42,275 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-20 01:36:42,275 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-20 01:36:42,275 INFO  L87              Difference]: Start difference. First operand 7704 states and 11580 transitions. Second operand  has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 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)
[2024-11-20 01:36:42,507 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-20 01:36:42,507 INFO  L93              Difference]: Finished difference Result 16251 states and 24440 transitions.
[2024-11-20 01:36:42,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-20 01:36:42,508 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 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 316
[2024-11-20 01:36:42,509 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-20 01:36:42,537 INFO  L225             Difference]: With dead ends: 16251
[2024-11-20 01:36:42,537 INFO  L226             Difference]: Without dead ends: 8785
[2024-11-20 01:36:42,547 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
[2024-11-20 01:36:42,548 INFO  L432           NwaCegarLoop]: 11570 mSDtfsCounter, 1687 mSDsluCounter, 34335 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 45905 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-20 01:36:42,548 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 45905 Invalid, 36 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-20 01:36:42,562 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8785 states.
[2024-11-20 01:36:42,655 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8785 to 8076.
[2024-11-20 01:36:42,665 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8076 states, 8075 states have (on average 1.503157894736842) internal successors, (12138), 8075 states have internal predecessors, (12138), 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)
[2024-11-20 01:36:42,677 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8076 states to 8076 states and 12138 transitions.
[2024-11-20 01:36:42,677 INFO  L78                 Accepts]: Start accepts. Automaton has 8076 states and 12138 transitions. Word has length 316
[2024-11-20 01:36:42,678 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-20 01:36:42,678 INFO  L471      AbstractCegarLoop]: Abstraction has 8076 states and 12138 transitions.
[2024-11-20 01:36:42,678 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 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)
[2024-11-20 01:36:42,678 INFO  L276                IsEmpty]: Start isEmpty. Operand 8076 states and 12138 transitions.
[2024-11-20 01:36:42,859 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3930
[2024-11-20 01:36:42,860 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 01:36:42,861 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-11-20 01:36:42,862 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-20 01:36:42,862 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 01:36:42,862 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 01:36:42,864 INFO  L85        PathProgramCache]: Analyzing trace with hash -360846369, now seen corresponding path program 1 times
[2024-11-20 01:36:42,864 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 01:36:42,864 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374968906]
[2024-11-20 01:36:42,864 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 01:36:42,865 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 01:36:48,900 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 01:36:55,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-20 01:36:55,555 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 01:36:55,556 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374968906]
[2024-11-20 01:36:55,556 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374968906] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-20 01:36:55,557 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-20 01:36:55,557 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-20 01:36:55,557 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629189857]
[2024-11-20 01:36:55,557 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-20 01:36:55,560 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-20 01:36:55,560 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 01:36:55,564 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-20 01:36:55,564 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-20 01:36:55,565 INFO  L87              Difference]: Start difference. First operand 8076 states and 12138 transitions. Second operand  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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)
[2024-11-20 01:36:55,693 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-20 01:36:55,693 INFO  L93              Difference]: Finished difference Result 15543 states and 23364 transitions.
[2024-11-20 01:36:55,694 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-20 01:36:55,695 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 3929
[2024-11-20 01:36:55,696 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-20 01:36:55,706 INFO  L225             Difference]: With dead ends: 15543
[2024-11-20 01:36:55,706 INFO  L226             Difference]: Without dead ends: 8077
[2024-11-20 01:36:55,714 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-20 01:36:55,715 INFO  L432           NwaCegarLoop]: 11573 mSDtfsCounter, 0 mSDsluCounter, 11567 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23140 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-20 01:36:55,716 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23140 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-20 01:36:55,723 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8077 states.
[2024-11-20 01:36:55,797 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8077 to 8077.
[2024-11-20 01:36:55,805 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8077 states, 8076 states have (on average 1.503095591877167) internal successors, (12139), 8076 states have internal predecessors, (12139), 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)
[2024-11-20 01:36:55,815 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8077 states to 8077 states and 12139 transitions.
[2024-11-20 01:36:55,816 INFO  L78                 Accepts]: Start accepts. Automaton has 8077 states and 12139 transitions. Word has length 3929
[2024-11-20 01:36:55,817 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-20 01:36:55,817 INFO  L471      AbstractCegarLoop]: Abstraction has 8077 states and 12139 transitions.
[2024-11-20 01:36:55,818 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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)
[2024-11-20 01:36:55,818 INFO  L276                IsEmpty]: Start isEmpty. Operand 8077 states and 12139 transitions.
[2024-11-20 01:36:56,147 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3930
[2024-11-20 01:36:56,147 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 01:36:56,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-11-20 01:36:56,150 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-20 01:36:56,151 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 01:36:56,152 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 01:36:56,153 INFO  L85        PathProgramCache]: Analyzing trace with hash -1175316914, now seen corresponding path program 1 times
[2024-11-20 01:36:56,153 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 01:36:56,153 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660318719]
[2024-11-20 01:36:56,154 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 01:36:56,154 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 01:36:59,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 01:37:04,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-20 01:37:04,642 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 01:37:04,642 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660318719]
[2024-11-20 01:37:04,642 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660318719] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-20 01:37:04,642 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-20 01:37:04,643 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-20 01:37:04,643 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486668253]
[2024-11-20 01:37:04,643 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-20 01:37:04,646 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-20 01:37:04,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 01:37:04,650 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-20 01:37:04,650 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-20 01:37:04,651 INFO  L87              Difference]: Start difference. First operand 8077 states and 12139 transitions. Second operand  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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)
[2024-11-20 01:37:04,868 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-20 01:37:04,872 INFO  L93              Difference]: Finished difference Result 15545 states and 23366 transitions.
[2024-11-20 01:37:04,872 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-20 01:37:04,874 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 3929
[2024-11-20 01:37:04,875 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-20 01:37:04,900 INFO  L225             Difference]: With dead ends: 15545
[2024-11-20 01:37:04,900 INFO  L226             Difference]: Without dead ends: 8078
[2024-11-20 01:37:04,916 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-20 01:37:04,917 INFO  L432           NwaCegarLoop]: 11573 mSDtfsCounter, 0 mSDsluCounter, 11567 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23140 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-20 01:37:04,921 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23140 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-20 01:37:04,939 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8078 states.
[2024-11-20 01:37:05,123 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8078 to 8078.
[2024-11-20 01:37:05,142 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8078 states, 8077 states have (on average 1.5030333044447195) internal successors, (12140), 8077 states have internal predecessors, (12140), 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)
[2024-11-20 01:37:05,169 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8078 states to 8078 states and 12140 transitions.
[2024-11-20 01:37:05,170 INFO  L78                 Accepts]: Start accepts. Automaton has 8078 states and 12140 transitions. Word has length 3929
[2024-11-20 01:37:05,171 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-20 01:37:05,175 INFO  L471      AbstractCegarLoop]: Abstraction has 8078 states and 12140 transitions.
[2024-11-20 01:37:05,176 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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)
[2024-11-20 01:37:05,177 INFO  L276                IsEmpty]: Start isEmpty. Operand 8078 states and 12140 transitions.
[2024-11-20 01:37:05,438 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3930
[2024-11-20 01:37:05,439 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 01:37:05,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-11-20 01:37:05,441 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-20 01:37:05,442 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 01:37:05,442 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 01:37:05,444 INFO  L85        PathProgramCache]: Analyzing trace with hash -35984387, now seen corresponding path program 1 times
[2024-11-20 01:37:05,444 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 01:37:05,444 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747025998]
[2024-11-20 01:37:05,445 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 01:37:05,445 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 01:37:09,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat