./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 023d838f
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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.cyclic_scheduler.1.prop1-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 5606bd40955c8278f2b6b1432c6d114e3c9551c4d874c0a1d6f9c688dcd7db4d
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m
[2024-11-10 01:58:08,343 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-10 01:58:08,397 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-10 01:58:08,402 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-10 01:58:08,402 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-10 01:58:08,424 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-10 01:58:08,425 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-10 01:58:08,425 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-10 01:58:08,426 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-10 01:58:08,428 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-10 01:58:08,429 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-10 01:58:08,429 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-10 01:58:08,429 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-10 01:58:08,429 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-10 01:58:08,429 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-10 01:58:08,430 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-10 01:58:08,430 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-10 01:58:08,430 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-10 01:58:08,430 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-10 01:58:08,430 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-10 01:58:08,430 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-10 01:58:08,433 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-10 01:58:08,433 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-10 01:58:08,433 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-10 01:58:08,433 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-10 01:58:08,433 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-10 01:58:08,433 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-10 01:58:08,434 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-10 01:58:08,434 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-10 01:58:08,434 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-10 01:58:08,434 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-10 01:58:08,435 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-10 01:58:08,435 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-10 01:58:08,435 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-10 01:58:08,435 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-10 01:58:08,435 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-10 01:58:08,436 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-10 01:58:08,436 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-10 01:58:08,436 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-10 01:58:08,436 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 -> 5606bd40955c8278f2b6b1432c6d114e3c9551c4d874c0a1d6f9c688dcd7db4d
[2024-11-10 01:58:08,639 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-10 01:58:08,657 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-10 01:58:08,659 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-10 01:58:08,660 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-10 01:58:08,660 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-10 01:58:08,661 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-func-interl.c
[2024-11-10 01:58:09,858 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-10 01:58:10,111 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-10 01:58:10,111 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-func-interl.c
[2024-11-10 01:58:10,137 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8000f6da/8b3fbca4700a40b3a27f37d3028a58f4/FLAGc3876cd3c
[2024-11-10 01:58:10,417 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8000f6da/8b3fbca4700a40b3a27f37d3028a58f4
[2024-11-10 01:58:10,419 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-10 01:58:10,420 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-10 01:58:10,422 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-10 01:58:10,422 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-10 01:58:10,426 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-10 01:58:10,427 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:58:10" (1/1) ...
[2024-11-10 01:58:10,427 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618180a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:10, skipping insertion in model container
[2024-11-10 01:58:10,428 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:58:10" (1/1) ...
[2024-11-10 01:58:10,490 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-10 01:58:10,670 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.cyclic_scheduler.1.prop1-func-interl.c[1183,1196]
[2024-11-10 01:58:11,088 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-10 01:58:11,108 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-10 01:58:11,138 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.cyclic_scheduler.1.prop1-func-interl.c[1183,1196]
[2024-11-10 01:58:11,333 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-10 01:58:11,348 INFO  L204         MainTranslator]: Completed translation
[2024-11-10 01:58:11,348 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11 WrapperNode
[2024-11-10 01:58:11,349 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-10 01:58:11,349 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-10 01:58:11,350 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-10 01:58:11,350 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-10 01:58:11,355 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:11,438 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:12,624 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12102
[2024-11-10 01:58:12,625 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-10 01:58:12,627 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-10 01:58:12,627 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-10 01:58:12,627 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-10 01:58:12,637 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:12,637 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:13,008 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:13,298 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].
[2024-11-10 01:58:13,299 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:13,299 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:13,648 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:13,687 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:13,739 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:13,868 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:14,060 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-10 01:58:14,061 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2024-11-10 01:58:14,062 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2024-11-10 01:58:14,062 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2024-11-10 01:58:14,062 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (1/1) ...
[2024-11-10 01:58:14,067 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-10 01:58:14,080 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-10 01:58:14,111 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)
[2024-11-10 01:58:14,112 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
[2024-11-10 01:58:14,158 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-10 01:58:14,162 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-10 01:58:14,162 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-10 01:58:14,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-10 01:58:14,767 INFO  L256             CfgBuilder]: Building ICFG
[2024-11-10 01:58:14,772 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-10 01:58:28,989 INFO  L?                        ?]: Removed 6709 outVars from TransFormulas that were not future-live.
[2024-11-10 01:58:28,990 INFO  L307             CfgBuilder]: Performing block encoding
[2024-11-10 01:58:29,233 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-10 01:58:29,234 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-10 01:58:29,234 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:58:29 BoogieIcfgContainer
[2024-11-10 01:58:29,235 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2024-11-10 01:58:29,237 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-10 01:58:29,237 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-10 01:58:29,240 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-10 01:58:29,240 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:58:10" (1/3) ...
[2024-11-10 01:58:29,240 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e94145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:58:29, skipping insertion in model container
[2024-11-10 01:58:29,240 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:58:11" (2/3) ...
[2024-11-10 01:58:29,241 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e94145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:58:29, skipping insertion in model container
[2024-11-10 01:58:29,242 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:58:29" (3/3) ...
[2024-11-10 01:58:29,243 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cyclic_scheduler.1.prop1-func-interl.c
[2024-11-10 01:58:29,257 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-10 01:58:29,257 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-10 01:58:29,351 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-10 01:58:29,356 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;@1ee1e370, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-10 01:58:29,357 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-10 01:58:29,369 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4325 states, 4323 states have (on average 1.4994216978949804) internal successors, (6482), 4324 states have internal predecessors, (6482), 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)
[2024-11-10 01:58:29,386 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 207
[2024-11-10 01:58:29,386 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 01:58:29,387 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]
[2024-11-10 01:58:29,387 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 01:58:29,391 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 01:58:29,392 INFO  L85        PathProgramCache]: Analyzing trace with hash 513258962, now seen corresponding path program 1 times
[2024-11-10 01:58:29,400 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 01:58:29,400 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936882513]
[2024-11-10 01:58:29,400 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 01:58:29,401 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 01:58:29,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 01:58:30,310 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-10 01:58:30,311 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 01:58:30,311 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936882513]
[2024-11-10 01:58:30,312 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936882513] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 01:58:30,312 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-10 01:58:30,313 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-10 01:58:30,314 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102607069]
[2024-11-10 01:58:30,314 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 01:58:30,318 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-10 01:58:30,319 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 01:58:30,340 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-10 01:58:30,340 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-10 01:58:30,350 INFO  L87              Difference]: Start difference. First operand  has 4325 states, 4323 states have (on average 1.4994216978949804) internal successors, (6482), 4324 states have internal predecessors, (6482), 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 51.5) internal successors, (206), 4 states have internal predecessors, (206), 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)
[2024-11-10 01:58:32,131 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 01:58:32,132 INFO  L93              Difference]: Finished difference Result 8353 states and 12523 transitions.
[2024-11-10 01:58:32,133 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-10 01:58:32,134 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 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 206
[2024-11-10 01:58:32,135 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 01:58:32,159 INFO  L225             Difference]: With dead ends: 8353
[2024-11-10 01:58:32,160 INFO  L226             Difference]: Without dead ends: 4322
[2024-11-10 01:58:32,171 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
[2024-11-10 01:58:32,174 INFO  L432           NwaCegarLoop]: 5396 mSDtfsCounter, 0 mSDsluCounter, 10787 mSDsCounter, 0 mSdLazyCounter, 3244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16183 SdHoareTripleChecker+Invalid, 3244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-10 01:58:32,174 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16183 Invalid, 3244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3244 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-10 01:58:32,196 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4322 states.
[2024-11-10 01:58:32,282 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4322 to 4322.
[2024-11-10 01:58:32,291 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4322 states, 4321 states have (on average 1.499190002314279) internal successors, (6478), 4321 states have internal predecessors, (6478), 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)
[2024-11-10 01:58:32,301 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4322 states to 4322 states and 6478 transitions.
[2024-11-10 01:58:32,302 INFO  L78                 Accepts]: Start accepts. Automaton has 4322 states and 6478 transitions. Word has length 206
[2024-11-10 01:58:32,305 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 01:58:32,306 INFO  L471      AbstractCegarLoop]: Abstraction has 4322 states and 6478 transitions.
[2024-11-10 01:58:32,306 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 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)
[2024-11-10 01:58:32,306 INFO  L276                IsEmpty]: Start isEmpty. Operand 4322 states and 6478 transitions.
[2024-11-10 01:58:32,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 208
[2024-11-10 01:58:32,312 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 01:58:32,312 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]
[2024-11-10 01:58:32,312 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-10 01:58:32,313 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 01:58:32,313 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 01:58:32,313 INFO  L85        PathProgramCache]: Analyzing trace with hash -1123781139, now seen corresponding path program 1 times
[2024-11-10 01:58:32,313 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 01:58:32,314 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124150734]
[2024-11-10 01:58:32,315 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 01:58:32,315 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 01:58:32,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 01:58:32,746 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-10 01:58:32,747 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 01:58:32,747 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124150734]
[2024-11-10 01:58:32,748 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124150734] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 01:58:32,748 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-10 01:58:32,748 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-10 01:58:32,748 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562978942]
[2024-11-10 01:58:32,748 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 01:58:32,750 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-10 01:58:32,751 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 01:58:32,752 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-10 01:58:32,752 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-10 01:58:32,752 INFO  L87              Difference]: Start difference. First operand 4322 states and 6478 transitions. Second operand  has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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)
[2024-11-10 01:58:34,237 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 01:58:34,237 INFO  L93              Difference]: Finished difference Result 8352 states and 12519 transitions.
[2024-11-10 01:58:34,239 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-10 01:58:34,240 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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 207
[2024-11-10 01:58:34,240 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 01:58:34,252 INFO  L225             Difference]: With dead ends: 8352
[2024-11-10 01:58:34,252 INFO  L226             Difference]: Without dead ends: 4324
[2024-11-10 01:58:34,257 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
[2024-11-10 01:58:34,257 INFO  L432           NwaCegarLoop]: 5396 mSDtfsCounter, 0 mSDsluCounter, 10784 mSDsCounter, 0 mSdLazyCounter, 3247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16180 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-10 01:58:34,259 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16180 Invalid, 3247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3247 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-10 01:58:34,264 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4324 states.
[2024-11-10 01:58:34,302 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4324 to 4324.
[2024-11-10 01:58:34,308 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4324 states, 4323 states have (on average 1.4989590562109647) internal successors, (6480), 4323 states have internal predecessors, (6480), 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)
[2024-11-10 01:58:34,313 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 6480 transitions.
[2024-11-10 01:58:34,313 INFO  L78                 Accepts]: Start accepts. Automaton has 4324 states and 6480 transitions. Word has length 207
[2024-11-10 01:58:34,314 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 01:58:34,314 INFO  L471      AbstractCegarLoop]: Abstraction has 4324 states and 6480 transitions.
[2024-11-10 01:58:34,315 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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)
[2024-11-10 01:58:34,315 INFO  L276                IsEmpty]: Start isEmpty. Operand 4324 states and 6480 transitions.
[2024-11-10 01:58:34,318 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 209
[2024-11-10 01:58:34,318 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 01:58:34,318 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]
[2024-11-10 01:58:34,319 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-10 01:58:34,319 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 01:58:34,322 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 01:58:34,322 INFO  L85        PathProgramCache]: Analyzing trace with hash -730226537, now seen corresponding path program 1 times
[2024-11-10 01:58:34,322 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 01:58:34,322 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945533561]
[2024-11-10 01:58:34,322 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 01:58:34,322 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 01:58:34,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 01:58:34,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-10 01:58:34,652 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 01:58:34,652 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945533561]
[2024-11-10 01:58:34,652 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945533561] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 01:58:34,652 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-10 01:58:34,652 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-10 01:58:34,653 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5455147]
[2024-11-10 01:58:34,653 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 01:58:34,653 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-10 01:58:34,653 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 01:58:34,654 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-10 01:58:34,654 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-10 01:58:34,654 INFO  L87              Difference]: Start difference. First operand 4324 states and 6480 transitions. Second operand  has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 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)
[2024-11-10 01:58:36,593 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 01:58:36,593 INFO  L93              Difference]: Finished difference Result 11041 states and 16548 transitions.
[2024-11-10 01:58:36,594 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-10 01:58:36,594 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 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 208
[2024-11-10 01:58:36,594 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 01:58:36,613 INFO  L225             Difference]: With dead ends: 11041
[2024-11-10 01:58:36,613 INFO  L226             Difference]: Without dead ends: 7011
[2024-11-10 01:58:36,621 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
[2024-11-10 01:58:36,622 INFO  L432           NwaCegarLoop]: 5392 mSDtfsCounter, 4274 mSDsluCounter, 15805 mSDsCounter, 0 mSdLazyCounter, 4268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4274 SdHoareTripleChecker+Valid, 21197 SdHoareTripleChecker+Invalid, 4268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-10 01:58:36,622 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4274 Valid, 21197 Invalid, 4268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4268 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-10 01:58:36,630 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7011 states.
[2024-11-10 01:58:36,695 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7011 to 4426.
[2024-11-10 01:58:36,704 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4426 states, 4425 states have (on average 1.4987570621468926) internal successors, (6632), 4425 states have internal predecessors, (6632), 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)
[2024-11-10 01:58:36,714 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4426 states to 4426 states and 6632 transitions.
[2024-11-10 01:58:36,714 INFO  L78                 Accepts]: Start accepts. Automaton has 4426 states and 6632 transitions. Word has length 208
[2024-11-10 01:58:36,714 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 01:58:36,714 INFO  L471      AbstractCegarLoop]: Abstraction has 4426 states and 6632 transitions.
[2024-11-10 01:58:36,714 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 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)
[2024-11-10 01:58:36,715 INFO  L276                IsEmpty]: Start isEmpty. Operand 4426 states and 6632 transitions.
[2024-11-10 01:58:36,792 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2222
[2024-11-10 01:58:36,793 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 01:58:36,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-10 01:58:36,797 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-10 01:58:36,797 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 01:58:36,797 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 01:58:36,798 INFO  L85        PathProgramCache]: Analyzing trace with hash -1086405925, now seen corresponding path program 1 times
[2024-11-10 01:58:36,798 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 01:58:36,799 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884248755]
[2024-11-10 01:58:36,799 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 01:58:36,799 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 01:58:38,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 01:58:42,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked.
[2024-11-10 01:58:42,197 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 01:58:42,197 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884248755]
[2024-11-10 01:58:42,197 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884248755] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 01:58:42,197 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-10 01:58:42,197 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-10 01:58:42,198 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780872967]
[2024-11-10 01:58:42,198 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 01:58:42,200 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-10 01:58:42,200 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 01:58:42,202 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-10 01:58:42,202 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-10 01:58:42,202 INFO  L87              Difference]: Start difference. First operand 4426 states and 6632 transitions. Second operand  has 5 states, 5 states have (on average 434.4) internal successors, (2172), 5 states have internal predecessors, (2172), 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)
[2024-11-10 01:58:43,708 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 01:58:43,708 INFO  L93              Difference]: Finished difference Result 8460 states and 12677 transitions.
[2024-11-10 01:58:43,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-10 01:58:43,714 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 434.4) internal successors, (2172), 5 states have internal predecessors, (2172), 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 2221
[2024-11-10 01:58:43,717 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 01:58:43,731 INFO  L225             Difference]: With dead ends: 8460
[2024-11-10 01:58:43,732 INFO  L226             Difference]: Without dead ends: 4430
[2024-11-10 01:58:43,738 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
[2024-11-10 01:58:43,742 INFO  L432           NwaCegarLoop]: 5396 mSDtfsCounter, 0 mSDsluCounter, 16165 mSDsCounter, 0 mSdLazyCounter, 4342 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21561 SdHoareTripleChecker+Invalid, 4343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-10 01:58:43,742 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21561 Invalid, 4343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4342 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-10 01:58:43,747 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4430 states.
[2024-11-10 01:58:43,790 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4430 to 4426.
[2024-11-10 01:58:43,799 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4426 states, 4425 states have (on average 1.4987570621468926) internal successors, (6632), 4425 states have internal predecessors, (6632), 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)
[2024-11-10 01:58:43,808 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4426 states to 4426 states and 6632 transitions.
[2024-11-10 01:58:43,809 INFO  L78                 Accepts]: Start accepts. Automaton has 4426 states and 6632 transitions. Word has length 2221
[2024-11-10 01:58:43,811 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 01:58:43,811 INFO  L471      AbstractCegarLoop]: Abstraction has 4426 states and 6632 transitions.
[2024-11-10 01:58:43,815 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 434.4) internal successors, (2172), 5 states have internal predecessors, (2172), 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)
[2024-11-10 01:58:43,816 INFO  L276                IsEmpty]: Start isEmpty. Operand 4426 states and 6632 transitions.
[2024-11-10 01:58:43,890 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2223
[2024-11-10 01:58:43,890 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 01:58:43,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-10 01:58:43,891 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-10 01:58:43,891 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 01:58:43,892 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 01:58:43,892 INFO  L85        PathProgramCache]: Analyzing trace with hash -909143068, now seen corresponding path program 1 times
[2024-11-10 01:58:43,893 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 01:58:43,893 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594715427]
[2024-11-10 01:58:43,893 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 01:58:43,893 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 01:58:49,514 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 01:58:52,566 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-10 01:58:52,567 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 01:58:52,567 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594715427]
[2024-11-10 01:58:52,568 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594715427] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-10 01:58:52,568 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017725618]
[2024-11-10 01:58:52,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 01:58:52,569 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-10 01:58:52,569 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-10 01:58:52,571 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-10 01:58:52,571 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-10 01:58:54,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 01:58:54,776 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9658 conjuncts, 91 conjuncts are in the unsatisfiable core
[2024-11-10 01:58:54,839 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-10 01:59:06,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-10 01:59:06,944 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-10 01:59:06,945 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017725618] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 01:59:06,945 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-10 01:59:06,945 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [7] total 42
[2024-11-10 01:59:06,945 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580492303]
[2024-11-10 01:59:06,945 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 01:59:06,947 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2024-11-10 01:59:06,947 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 01:59:06,949 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2024-11-10 01:59:06,950 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1585, Unknown=0, NotChecked=0, Total=1722
[2024-11-10 01:59:06,951 INFO  L87              Difference]: Start difference. First operand 4426 states and 6632 transitions. Second operand  has 37 states, 37 states have (on average 60.054054054054056) internal successors, (2222), 37 states have internal predecessors, (2222), 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)
[2024-11-10 01:59:20,014 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 01:59:20,014 INFO  L93              Difference]: Finished difference Result 25786 states and 38657 transitions.
[2024-11-10 01:59:20,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. 
[2024-11-10 01:59:20,015 INFO  L78                 Accepts]: Start accepts. Automaton has  has 37 states, 37 states have (on average 60.054054054054056) internal successors, (2222), 37 states have internal predecessors, (2222), 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 2222
[2024-11-10 01:59:20,018 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 01:59:20,054 INFO  L225             Difference]: With dead ends: 25786
[2024-11-10 01:59:20,055 INFO  L226             Difference]: Without dead ends: 21754
[2024-11-10 01:59:20,064 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2246 GetRequests, 2189 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=266, Invalid=3156, Unknown=0, NotChecked=0, Total=3422
[2024-11-10 01:59:20,065 INFO  L432           NwaCegarLoop]: 8687 mSDtfsCounter, 25783 mSDsluCounter, 164336 mSDsCounter, 0 mSdLazyCounter, 36206 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25783 SdHoareTripleChecker+Valid, 173023 SdHoareTripleChecker+Invalid, 36217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 36206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time
[2024-11-10 01:59:20,065 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [25783 Valid, 173023 Invalid, 36217 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [11 Valid, 36206 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time]
[2024-11-10 01:59:20,087 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21754 states.
[2024-11-10 01:59:20,220 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21754 to 8239.
[2024-11-10 01:59:20,231 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8239 states, 8238 states have (on average 1.4989075018208302) internal successors, (12348), 8238 states have internal predecessors, (12348), 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)
[2024-11-10 01:59:20,239 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8239 states to 8239 states and 12348 transitions.
[2024-11-10 01:59:20,240 INFO  L78                 Accepts]: Start accepts. Automaton has 8239 states and 12348 transitions. Word has length 2222
[2024-11-10 01:59:20,242 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 01:59:20,242 INFO  L471      AbstractCegarLoop]: Abstraction has 8239 states and 12348 transitions.
[2024-11-10 01:59:20,243 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 37 states, 37 states have (on average 60.054054054054056) internal successors, (2222), 37 states have internal predecessors, (2222), 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)
[2024-11-10 01:59:20,243 INFO  L276                IsEmpty]: Start isEmpty. Operand 8239 states and 12348 transitions.
[2024-11-10 01:59:20,272 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2224
[2024-11-10 01:59:20,272 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 01:59:20,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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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]
[2024-11-10 01:59:20,316 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-10 01:59:20,474 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-10 01:59:20,474 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 01:59:20,475 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 01:59:20,476 INFO  L85        PathProgramCache]: Analyzing trace with hash -743224877, now seen corresponding path program 1 times
[2024-11-10 01:59:20,476 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 01:59:20,476 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60693407]
[2024-11-10 01:59:20,476 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 01:59:20,477 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 01:59:21,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 01:59:23,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-10 01:59:23,621 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 01:59:23,621 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60693407]
[2024-11-10 01:59:23,621 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60693407] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 01:59:23,621 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-10 01:59:23,622 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-10 01:59:23,622 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137290637]
[2024-11-10 01:59:23,622 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 01:59:23,624 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-10 01:59:23,624 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 01:59:23,626 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-10 01:59:23,626 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-10 01:59:23,626 INFO  L87              Difference]: Start difference. First operand 8239 states and 12348 transitions. Second operand  has 4 states, 4 states have (on average 555.75) internal successors, (2223), 4 states have internal predecessors, (2223), 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)
[2024-11-10 01:59:24,803 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 01:59:24,804 INFO  L93              Difference]: Finished difference Result 16196 states and 24274 transitions.
[2024-11-10 01:59:24,806 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-10 01:59:24,807 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 555.75) internal successors, (2223), 4 states have internal predecessors, (2223), 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 2223
[2024-11-10 01:59:24,809 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 01:59:24,820 INFO  L225             Difference]: With dead ends: 16196
[2024-11-10 01:59:24,821 INFO  L226             Difference]: Without dead ends: 8251
[2024-11-10 01:59:24,828 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
[2024-11-10 01:59:24,829 INFO  L432           NwaCegarLoop]: 5396 mSDtfsCounter, 4 mSDsluCounter, 10784 mSDsCounter, 0 mSdLazyCounter, 3247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16180 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-10 01:59:24,829 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16180 Invalid, 3247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3247 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-10 01:59:24,836 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8251 states.
[2024-11-10 01:59:24,904 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8251 to 8251.
[2024-11-10 01:59:24,911 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8251 states, 8250 states have (on average 1.4986666666666666) internal successors, (12364), 8250 states have internal predecessors, (12364), 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)
[2024-11-10 01:59:24,919 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8251 states to 8251 states and 12364 transitions.
[2024-11-10 01:59:24,920 INFO  L78                 Accepts]: Start accepts. Automaton has 8251 states and 12364 transitions. Word has length 2223
[2024-11-10 01:59:24,921 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 01:59:24,921 INFO  L471      AbstractCegarLoop]: Abstraction has 8251 states and 12364 transitions.
[2024-11-10 01:59:24,922 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 555.75) internal successors, (2223), 4 states have internal predecessors, (2223), 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)
[2024-11-10 01:59:24,922 INFO  L276                IsEmpty]: Start isEmpty. Operand 8251 states and 12364 transitions.
[2024-11-10 01:59:24,949 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2224
[2024-11-10 01:59:24,950 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 01:59:24,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-11-10 01:59:24,951 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-10 01:59:24,951 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 01:59:24,952 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 01:59:24,952 INFO  L85        PathProgramCache]: Analyzing trace with hash -748689078, now seen corresponding path program 1 times
[2024-11-10 01:59:24,952 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 01:59:24,952 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392091808]
[2024-11-10 01:59:24,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 01:59:24,953 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms