./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 c7c6ca5d
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-?-c7c6ca5-m
[2024-11-08 18:12:55,390 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:12:55,469 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-08 18:12:55,478 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:12:55,479 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:12:55,509 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:12:55,510 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:12:55,510 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:12:55,511 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:12:55,512 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 18:12:55,513 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:12:55,513 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:12:55,514 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:12:55,517 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 18:12:55,517 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 18:12:55,518 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:12:55,518 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:12:55,518 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 18:12:55,519 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 18:12:55,519 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:12:55,519 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:12:55,520 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:12:55,520 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 18:12:55,520 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 18:12:55,520 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 18:12:55,520 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:12:55,521 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 18:12:55,521 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:12:55,521 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 18:12:55,521 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:12:55,522 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:12:55,522 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:12:55,522 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:12:55,523 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 18:12:55,523 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 18:12:55,524 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:12:55,524 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:12:55,524 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:12:55,525 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:12:55,525 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
[2024-11-08 18:12:55,806 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:12:55,832 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:12:55,836 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:12:55,837 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 18:12:55,838 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 18:12:55,839 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-func-interl.c
[2024-11-08 18:12:57,309 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:12:57,707 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 18:12:57,708 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-func-interl.c
[2024-11-08 18:12:57,734 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d6dcf373/c754af6825c941c3b24f310c42015c9e/FLAG6e39c73ea
[2024-11-08 18:12:57,750 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d6dcf373/c754af6825c941c3b24f310c42015c9e
[2024-11-08 18:12:57,753 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:12:57,754 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:12:57,756 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:12:57,756 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:12:57,762 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:12:57,763 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:12:57" (1/1) ...
[2024-11-08 18:12:57,764 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e967a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:57, skipping insertion in model container
[2024-11-08 18:12:57,765 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:12:57" (1/1) ...
[2024-11-08 18:12:57,843 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:12:58,075 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]
[2024-11-08 18:12:58,632 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:12:58,649 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 18:12:58,660 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]
[2024-11-08 18:12:58,974 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:12:58,992 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 18:12:58,993 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58 WrapperNode
[2024-11-08 18:12:58,993 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:12:58,994 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:12:58,994 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:12:58,994 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:12:59,000 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:12:59,153 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:00,838 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12103
[2024-11-08 18:13:00,838 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:13:00,839 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:13:00,839 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:13:00,839 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:13:00,848 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:00,848 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:01,379 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:01,739 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].
[2024-11-08 18:13:01,739 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:01,740 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:02,333 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:02,381 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:02,465 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:02,523 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:02,989 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:13:02,991 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:13:02,991 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:13:02,991 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:13:02,992 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (1/1) ...
[2024-11-08 18:13:02,997 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:13:03,008 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 18:13:03,024 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)
[2024-11-08 18:13:03,026 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
[2024-11-08 18:13:03,069 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:13:03,069 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 18:13:03,069 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:13:03,069 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:13:03,675 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 18:13:03,677 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:13:19,318 INFO  L?                        ?]: Removed 6709 outVars from TransFormulas that were not future-live.
[2024-11-08 18:13:19,318 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 18:13:19,396 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:13:19,396 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 18:13:19,397 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:13:19 BoogieIcfgContainer
[2024-11-08 18:13:19,398 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:13:19,400 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:13:19,400 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:13:19,403 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:13:19,404 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:12:57" (1/3) ...
[2024-11-08 18:13:19,404 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e03b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:13:19, skipping insertion in model container
[2024-11-08 18:13:19,405 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:58" (2/3) ...
[2024-11-08 18:13:19,405 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e03b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:13:19, skipping insertion in model container
[2024-11-08 18:13:19,405 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:13:19" (3/3) ...
[2024-11-08 18:13:19,408 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cyclic_scheduler.1.prop1-func-interl.c
[2024-11-08 18:13:19,425 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:13:19,425 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 18:13:19,564 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:13:19,571 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;@2cfddd37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:13:19,571 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 18:13:19,588 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4322 states, 4320 states have (on average 1.4997685185185186) internal successors, (6479), 4321 states have internal predecessors, (6479), 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)
[2024-11-08 18:13:19,609 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 206
[2024-11-08 18:13:19,609 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:13:19,610 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]
[2024-11-08 18:13:19,611 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:13:19,615 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:13:19,615 INFO  L85        PathProgramCache]: Analyzing trace with hash -1874980178, now seen corresponding path program 1 times
[2024-11-08 18:13:19,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:13:19,623 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964816301]
[2024-11-08 18:13:19,624 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:13:19,624 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:13:19,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:13:20,876 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:13:20,878 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:13:20,879 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964816301]
[2024-11-08 18:13:20,880 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964816301] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:13:20,880 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:13:20,881 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:13:20,882 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26565358]
[2024-11-08 18:13:20,883 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:13:20,888 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:13:20,889 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:13:20,916 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:13:20,917 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:13:20,929 INFO  L87              Difference]: Start difference. First operand  has 4322 states, 4320 states have (on average 1.4997685185185186) internal successors, (6479), 4321 states have internal predecessors, (6479), 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 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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)
[2024-11-08 18:13:21,229 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:13:21,230 INFO  L93              Difference]: Finished difference Result 8349 states and 12519 transitions.
[2024-11-08 18:13:21,232 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 18:13:21,233 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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 205
[2024-11-08 18:13:21,235 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:13:21,271 INFO  L225             Difference]: With dead ends: 8349
[2024-11-08 18:13:21,271 INFO  L226             Difference]: Without dead ends: 4321
[2024-11-08 18:13:21,283 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
[2024-11-08 18:13:21,288 INFO  L432           NwaCegarLoop]: 6473 mSDtfsCounter, 0 mSDsluCounter, 12940 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19413 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
[2024-11-08 18:13:21,290 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19413 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:13:21,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4321 states.
[2024-11-08 18:13:21,450 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4321 to 4321.
[2024-11-08 18:13:21,463 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4321 states, 4320 states have (on average 1.4993055555555554) internal successors, (6477), 4320 states have internal predecessors, (6477), 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)
[2024-11-08 18:13:21,589 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4321 states to 4321 states and 6477 transitions.
[2024-11-08 18:13:21,591 INFO  L78                 Accepts]: Start accepts. Automaton has 4321 states and 6477 transitions. Word has length 205
[2024-11-08 18:13:21,592 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:13:21,593 INFO  L471      AbstractCegarLoop]: Abstraction has 4321 states and 6477 transitions.
[2024-11-08 18:13:21,593 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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)
[2024-11-08 18:13:21,593 INFO  L276                IsEmpty]: Start isEmpty. Operand 4321 states and 6477 transitions.
[2024-11-08 18:13:21,602 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 207
[2024-11-08 18:13:21,603 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:13:21,603 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]
[2024-11-08 18:13:21,604 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 18:13:21,604 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:13:21,606 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:13:21,606 INFO  L85        PathProgramCache]: Analyzing trace with hash 2006853079, now seen corresponding path program 1 times
[2024-11-08 18:13:21,606 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:13:21,606 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043648521]
[2024-11-08 18:13:21,606 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:13:21,607 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:13:21,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:13:22,178 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:13:22,179 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:13:22,179 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043648521]
[2024-11-08 18:13:22,180 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043648521] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:13:22,180 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:13:22,180 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:13:22,180 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182962183]
[2024-11-08 18:13:22,181 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:13:22,182 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:13:22,182 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:13:22,183 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:13:22,185 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:13:22,185 INFO  L87              Difference]: Start difference. First operand 4321 states and 6477 transitions. 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)
[2024-11-08 18:13:22,373 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:13:22,374 INFO  L93              Difference]: Finished difference Result 8350 states and 12517 transitions.
[2024-11-08 18:13:22,375 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 18:13:22,375 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
[2024-11-08 18:13:22,377 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:13:22,395 INFO  L225             Difference]: With dead ends: 8350
[2024-11-08 18:13:22,395 INFO  L226             Difference]: Without dead ends: 4323
[2024-11-08 18:13:22,405 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
[2024-11-08 18:13:22,407 INFO  L432           NwaCegarLoop]: 6473 mSDtfsCounter, 0 mSDsluCounter, 12936 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19409 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:13:22,407 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19409 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:13:22,416 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4323 states.
[2024-11-08 18:13:22,491 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 4323.
[2024-11-08 18:13:22,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4323 states, 4322 states have (on average 1.499074502545118) internal successors, (6479), 4322 states have internal predecessors, (6479), 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)
[2024-11-08 18:13:22,514 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 6479 transitions.
[2024-11-08 18:13:22,516 INFO  L78                 Accepts]: Start accepts. Automaton has 4323 states and 6479 transitions. Word has length 206
[2024-11-08 18:13:22,518 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:13:22,518 INFO  L471      AbstractCegarLoop]: Abstraction has 4323 states and 6479 transitions.
[2024-11-08 18:13:22,518 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)
[2024-11-08 18:13:22,518 INFO  L276                IsEmpty]: Start isEmpty. Operand 4323 states and 6479 transitions.
[2024-11-08 18:13:22,521 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 208
[2024-11-08 18:13:22,521 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:13:22,521 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]
[2024-11-08 18:13:22,522 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 18:13:22,522 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:13:22,525 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:13:22,525 INFO  L85        PathProgramCache]: Analyzing trace with hash 984938663, now seen corresponding path program 1 times
[2024-11-08 18:13:22,525 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:13:22,526 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493778847]
[2024-11-08 18:13:22,526 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:13:22,526 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:13:22,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:13:22,988 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:13:22,989 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:13:22,989 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493778847]
[2024-11-08 18:13:22,989 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493778847] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:13:22,989 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:13:22,990 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:13:22,990 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460255248]
[2024-11-08 18:13:22,990 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:13:22,991 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:13:22,991 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:13:22,992 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:13:22,992 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:13:22,992 INFO  L87              Difference]: Start difference. First operand 4323 states and 6479 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)
[2024-11-08 18:13:23,202 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:13:23,203 INFO  L93              Difference]: Finished difference Result 8354 states and 12521 transitions.
[2024-11-08 18:13:23,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 18:13:23,204 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
[2024-11-08 18:13:23,204 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:13:23,222 INFO  L225             Difference]: With dead ends: 8354
[2024-11-08 18:13:23,222 INFO  L226             Difference]: Without dead ends: 4325
[2024-11-08 18:13:23,229 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
[2024-11-08 18:13:23,231 INFO  L432           NwaCegarLoop]: 6473 mSDtfsCounter, 0 mSDsluCounter, 12930 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19403 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:13:23,231 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19403 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:13:23,239 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4325 states.
[2024-11-08 18:13:23,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4325 to 4325.
[2024-11-08 18:13:23,339 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4325 states, 4324 states have (on average 1.4988436632747455) internal successors, (6481), 4324 states have internal predecessors, (6481), 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)
[2024-11-08 18:13:23,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 6481 transitions.
[2024-11-08 18:13:23,356 INFO  L78                 Accepts]: Start accepts. Automaton has 4325 states and 6481 transitions. Word has length 207
[2024-11-08 18:13:23,356 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:13:23,357 INFO  L471      AbstractCegarLoop]: Abstraction has 4325 states and 6481 transitions.
[2024-11-08 18:13:23,358 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)
[2024-11-08 18:13:23,358 INFO  L276                IsEmpty]: Start isEmpty. Operand 4325 states and 6481 transitions.
[2024-11-08 18:13:23,360 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 209
[2024-11-08 18:13:23,360 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:13:23,361 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]
[2024-11-08 18:13:23,362 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 18:13:23,362 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:13:23,363 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:13:23,363 INFO  L85        PathProgramCache]: Analyzing trace with hash 1377215582, now seen corresponding path program 1 times
[2024-11-08 18:13:23,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:13:23,363 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416279308]
[2024-11-08 18:13:23,367 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:13:23,367 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:13:23,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:13:23,919 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:13:23,920 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:13:23,921 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416279308]
[2024-11-08 18:13:23,921 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416279308] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:13:23,921 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:13:23,921 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 18:13:23,922 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691847291]
[2024-11-08 18:13:23,922 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:13:23,922 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 18:13:23,922 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:13:23,923 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 18:13:23,923 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 18:13:23,924 INFO  L87              Difference]: Start difference. First operand 4325 states and 6481 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)
[2024-11-08 18:13:24,144 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:13:24,145 INFO  L93              Difference]: Finished difference Result 11045 states and 16552 transitions.
[2024-11-08 18:13:24,145 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 18:13:24,146 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
[2024-11-08 18:13:24,146 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:13:24,173 INFO  L225             Difference]: With dead ends: 11045
[2024-11-08 18:13:24,174 INFO  L226             Difference]: Without dead ends: 7014
[2024-11-08 18:13:24,183 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
[2024-11-08 18:13:24,188 INFO  L432           NwaCegarLoop]: 6469 mSDtfsCounter, 4273 mSDsluCounter, 18962 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4273 SdHoareTripleChecker+Valid, 25431 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:13:24,188 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4273 Valid, 25431 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:13:24,201 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7014 states.
[2024-11-08 18:13:24,290 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7014 to 4425.
[2024-11-08 18:13:24,302 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4425 states, 4424 states have (on average 1.498869801084991) internal successors, (6631), 4424 states have internal predecessors, (6631), 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)
[2024-11-08 18:13:24,320 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4425 states to 4425 states and 6631 transitions.
[2024-11-08 18:13:24,321 INFO  L78                 Accepts]: Start accepts. Automaton has 4425 states and 6631 transitions. Word has length 208
[2024-11-08 18:13:24,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:13:24,322 INFO  L471      AbstractCegarLoop]: Abstraction has 4425 states and 6631 transitions.
[2024-11-08 18:13:24,322 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)
[2024-11-08 18:13:24,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 4425 states and 6631 transitions.
[2024-11-08 18:13:24,420 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2222
[2024-11-08 18:13:24,421 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:13:24,422 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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[2024-11-08 18:13:24,422 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 18:13:24,423 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:13:24,423 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:13:24,424 INFO  L85        PathProgramCache]: Analyzing trace with hash 907362627, now seen corresponding path program 1 times
[2024-11-08 18:13:24,424 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:13:24,425 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375577086]
[2024-11-08 18:13:24,425 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:13:24,425 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:13:32,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:13:38,036 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:13:38,036 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:13:38,036 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375577086]
[2024-11-08 18:13:38,038 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375577086] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:13:38,038 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383385458]
[2024-11-08 18:13:38,039 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:13:38,039 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:13:38,039 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 18:13:38,043 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)
[2024-11-08 18:13:38,045 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 18:13:40,859 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:13:40,923 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9657 conjuncts, 37 conjuncts are in the unsatisfiable core
[2024-11-08 18:13:40,997 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:13:51,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:13:51,148 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:13:51,148 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383385458] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:13:51,148 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 18:13:51,149 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17
[2024-11-08 18:13:51,149 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919778537]
[2024-11-08 18:13:51,149 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:13:51,151 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 18:13:51,152 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:13:51,154 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 18:13:51,154 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272
[2024-11-08 18:13:51,156 INFO  L87              Difference]: Start difference. First operand 4425 states and 6631 transitions. Second operand  has 12 states, 12 states have (on average 185.08333333333334) internal successors, (2221), 12 states have internal predecessors, (2221), 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)
[2024-11-08 18:13:52,055 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:13:52,056 INFO  L93              Difference]: Finished difference Result 17430 states and 26128 transitions.
[2024-11-08 18:13:52,056 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-11-08 18:13:52,058 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 185.08333333333334) internal successors, (2221), 12 states have internal predecessors, (2221), 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
[2024-11-08 18:13:52,062 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:13:52,112 INFO  L225             Difference]: With dead ends: 17430
[2024-11-08 18:13:52,113 INFO  L226             Difference]: Without dead ends: 13399
[2024-11-08 18:13:52,125 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2234 GetRequests, 2213 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506
[2024-11-08 18:13:52,127 INFO  L432           NwaCegarLoop]: 10482 mSDtfsCounter, 11501 mSDsluCounter, 77831 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11501 SdHoareTripleChecker+Valid, 88313 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 18:13:52,127 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11501 Valid, 88313 Invalid, 202 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 18:13:52,144 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13399 states.
[2024-11-08 18:13:52,358 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13399 to 8228.
[2024-11-08 18:13:52,372 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8228 states, 8227 states have (on average 1.4993314695514768) internal successors, (12335), 8227 states have internal predecessors, (12335), 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)
[2024-11-08 18:13:52,391 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8228 states to 8228 states and 12335 transitions.
[2024-11-08 18:13:52,392 INFO  L78                 Accepts]: Start accepts. Automaton has 8228 states and 12335 transitions. Word has length 2221
[2024-11-08 18:13:52,395 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:13:52,395 INFO  L471      AbstractCegarLoop]: Abstraction has 8228 states and 12335 transitions.
[2024-11-08 18:13:52,396 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 185.08333333333334) internal successors, (2221), 12 states have internal predecessors, (2221), 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)
[2024-11-08 18:13:52,396 INFO  L276                IsEmpty]: Start isEmpty. Operand 8228 states and 12335 transitions.
[2024-11-08 18:13:52,437 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2223
[2024-11-08 18:13:52,438 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:13:52,439 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]
[2024-11-08 18:13:52,490 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 18:13:52,640 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
[2024-11-08 18:13:52,641 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:13:52,642 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:13:52,643 INFO  L85        PathProgramCache]: Analyzing trace with hash -1143655858, now seen corresponding path program 1 times
[2024-11-08 18:13:52,644 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:13:52,644 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417640349]
[2024-11-08 18:13:52,645 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:13:52,645 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:13:58,486 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:14:01,404 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:14:01,404 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:14:01,404 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417640349]
[2024-11-08 18:14:01,404 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417640349] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:14:01,404 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345089989]
[2024-11-08 18:14:01,405 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:14:01,405 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:14:01,405 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 18:14:01,409 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:14:01,411 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 18:14:07,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:14:07,477 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9660 conjuncts, 35 conjuncts are in the unsatisfiable core
[2024-11-08 18:14:07,525 INFO  L278         TraceCheckSpWp]: Computing forward predicates...