./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version a046e57d
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b1033a3ae16a6528f3475382722a33012af32e5d099f899eddeadaa2df0dcc4
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m
[2024-10-12 23:31:13,310 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-12 23:31:13,383 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-10-12 23:31:13,386 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-12 23:31:13,387 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-12 23:31:13,408 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-12 23:31:13,409 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-12 23:31:13,409 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-12 23:31:13,410 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-12 23:31:13,411 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-12 23:31:13,412 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-12 23:31:13,412 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-12 23:31:13,412 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-12 23:31:13,413 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-12 23:31:13,414 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-12 23:31:13,414 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-12 23:31:13,415 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-12 23:31:13,415 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-12 23:31:13,415 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-12 23:31:13,415 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-12 23:31:13,415 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-12 23:31:13,416 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-12 23:31:13,416 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-12 23:31:13,416 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-12 23:31:13,416 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-12 23:31:13,417 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-12 23:31:13,417 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-12 23:31:13,417 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-12 23:31:13,417 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-12 23:31:13,418 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-12 23:31:13,418 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-12 23:31:13,418 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-12 23:31:13,418 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-12 23:31:13,419 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-12 23:31:13,419 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-12 23:31:13,419 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-12 23:31:13,419 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-12 23:31:13,419 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-12 23:31:13,420 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-12 23:31:13,420 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 -> 0b1033a3ae16a6528f3475382722a33012af32e5d099f899eddeadaa2df0dcc4
[2024-10-12 23:31:13,611 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-12 23:31:13,631 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-12 23:31:13,633 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-12 23:31:13,634 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-12 23:31:13,634 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-12 23:31:13,635 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c
[2024-10-12 23:31:14,906 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-12 23:31:15,330 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-12 23:31:15,330 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c
[2024-10-12 23:31:15,362 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/489dc58e5/f2bcc6c81c2349c6871477791f56bbfb/FLAG63eee5546
[2024-10-12 23:31:15,463 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/489dc58e5/f2bcc6c81c2349c6871477791f56bbfb
[2024-10-12 23:31:15,465 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-12 23:31:15,466 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-12 23:31:15,467 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-12 23:31:15,467 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-12 23:31:15,475 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-12 23:31:15,475 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:31:15" (1/1) ...
[2024-10-12 23:31:15,476 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564154e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:15, skipping insertion in model container
[2024-10-12 23:31:15,476 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:31:15" (1/1) ...
[2024-10-12 23:31:15,575 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-12 23:31:15,801 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c[1175,1188]
[2024-10-12 23:31:16,544 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-12 23:31:16,552 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-12 23:31:16,560 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sokoban.1.prop1-back-serstep.c[1175,1188]
[2024-10-12 23:31:17,082 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-12 23:31:17,111 INFO  L204         MainTranslator]: Completed translation
[2024-10-12 23:31:17,112 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17 WrapperNode
[2024-10-12 23:31:17,112 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-12 23:31:17,117 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-12 23:31:17,118 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-12 23:31:17,118 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-12 23:31:17,127 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:17,375 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:18,928 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21214
[2024-10-12 23:31:18,933 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-12 23:31:18,934 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-12 23:31:18,935 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-12 23:31:18,937 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-12 23:31:18,946 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:18,946 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:19,571 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:19,891 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-10-12 23:31:19,892 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:19,892 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:20,257 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:20,310 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:20,389 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:20,452 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:20,646 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-12 23:31:20,647 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-12 23:31:20,647 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-12 23:31:20,647 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-12 23:31:20,648 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (1/1) ...
[2024-10-12 23:31:20,652 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-12 23:31:20,659 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-12 23:31:20,672 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-10-12 23:31:20,674 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-10-12 23:31:20,710 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-12 23:31:20,710 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-12 23:31:20,710 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-12 23:31:20,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-12 23:31:22,049 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-12 23:31:22,050 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-12 23:31:48,286 INFO  L?                        ?]: Removed 14777 outVars from TransFormulas that were not future-live.
[2024-10-12 23:31:48,287 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-12 23:31:48,628 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-12 23:31:48,628 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-12 23:31:48,629 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:31:48 BoogieIcfgContainer
[2024-10-12 23:31:48,630 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-12 23:31:48,632 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-12 23:31:48,632 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-12 23:31:48,634 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-12 23:31:48,635 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:31:15" (1/3) ...
[2024-10-12 23:31:48,636 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6ec537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:31:48, skipping insertion in model container
[2024-10-12 23:31:48,636 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:31:17" (2/3) ...
[2024-10-12 23:31:48,637 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6ec537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:31:48, skipping insertion in model container
[2024-10-12 23:31:48,637 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:31:48" (3/3) ...
[2024-10-12 23:31:48,638 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sokoban.1.prop1-back-serstep.c
[2024-10-12 23:31:48,650 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-12 23:31:48,651 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-12 23:31:48,876 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-12 23:31:48,881 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;@2f4dca5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-12 23:31:48,881 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-12 23:31:48,898 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4887 states, 4885 states have (on average 1.5001023541453429) internal successors, (7328), 4886 states have internal predecessors, (7328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:31:48,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 437
[2024-10-12 23:31:48,919 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 23:31:48,920 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 23:31:48,921 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 23:31:48,925 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 23:31:48,925 INFO  L85        PathProgramCache]: Analyzing trace with hash 807530083, now seen corresponding path program 1 times
[2024-10-12 23:31:48,936 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 23:31:48,936 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953153189]
[2024-10-12 23:31:48,936 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 23:31:48,937 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 23:31:49,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 23:31:50,732 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 23:31:50,733 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 23:31:50,733 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953153189]
[2024-10-12 23:31:50,734 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953153189] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 23:31:50,734 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 23:31:50,734 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 23:31:50,736 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678381147]
[2024-10-12 23:31:50,736 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 23:31:50,741 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 23:31:50,742 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 23:31:50,761 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 23:31:50,762 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 23:31:50,771 INFO  L87              Difference]: Start difference. First operand  has 4887 states, 4885 states have (on average 1.5001023541453429) internal successors, (7328), 4886 states have internal predecessors, (7328), 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 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:31:50,991 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 23:31:50,991 INFO  L93              Difference]: Finished difference Result 9494 states and 14238 transitions.
[2024-10-12 23:31:50,992 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 23:31:50,994 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 436
[2024-10-12 23:31:50,998 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 23:31:51,026 INFO  L225             Difference]: With dead ends: 9494
[2024-10-12 23:31:51,026 INFO  L226             Difference]: Without dead ends: 4888
[2024-10-12 23:31:51,038 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 23:31:51,041 INFO  L432           NwaCegarLoop]: 7323 mSDtfsCounter, 0 mSDsluCounter, 14641 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21964 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 23:31:51,042 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21964 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 23:31:51,065 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4888 states.
[2024-10-12 23:31:51,167 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4888 to 4888.
[2024-10-12 23:31:51,174 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4888 states, 4887 states have (on average 1.499488438714958) internal successors, (7328), 4887 states have internal predecessors, (7328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:31:51,184 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4888 states to 4888 states and 7328 transitions.
[2024-10-12 23:31:51,186 INFO  L78                 Accepts]: Start accepts. Automaton has 4888 states and 7328 transitions. Word has length 436
[2024-10-12 23:31:51,187 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 23:31:51,187 INFO  L471      AbstractCegarLoop]: Abstraction has 4888 states and 7328 transitions.
[2024-10-12 23:31:51,187 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:31:51,187 INFO  L276                IsEmpty]: Start isEmpty. Operand 4888 states and 7328 transitions.
[2024-10-12 23:31:51,192 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 438
[2024-10-12 23:31:51,192 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 23:31:51,192 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 23:31:51,193 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-12 23:31:51,193 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 23:31:51,193 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 23:31:51,193 INFO  L85        PathProgramCache]: Analyzing trace with hash -734673242, now seen corresponding path program 1 times
[2024-10-12 23:31:51,193 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 23:31:51,194 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711027192]
[2024-10-12 23:31:51,194 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 23:31:51,194 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 23:31:51,391 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 23:31:52,136 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 23:31:52,136 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 23:31:52,136 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711027192]
[2024-10-12 23:31:52,137 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711027192] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 23:31:52,137 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 23:31:52,137 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 23:31:52,137 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197237985]
[2024-10-12 23:31:52,137 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 23:31:52,139 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 23:31:52,140 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 23:31:52,141 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 23:31:52,142 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 23:31:52,143 INFO  L87              Difference]: Start difference. First operand 4888 states and 7328 transitions. Second operand  has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:31:52,282 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 23:31:52,283 INFO  L93              Difference]: Finished difference Result 9497 states and 14238 transitions.
[2024-10-12 23:31:52,283 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 23:31:52,283 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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 437
[2024-10-12 23:31:52,284 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 23:31:52,296 INFO  L225             Difference]: With dead ends: 9497
[2024-10-12 23:31:52,296 INFO  L226             Difference]: Without dead ends: 4890
[2024-10-12 23:31:52,301 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 23:31:52,302 INFO  L432           NwaCegarLoop]: 7323 mSDtfsCounter, 0 mSDsluCounter, 14638 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21961 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 23:31:52,303 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21961 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 23:31:52,308 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4890 states.
[2024-10-12 23:31:52,352 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4890.
[2024-10-12 23:31:52,358 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4890 states, 4889 states have (on average 1.4992841071793823) internal successors, (7330), 4889 states have internal predecessors, (7330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:31:52,368 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4890 states to 4890 states and 7330 transitions.
[2024-10-12 23:31:52,369 INFO  L78                 Accepts]: Start accepts. Automaton has 4890 states and 7330 transitions. Word has length 437
[2024-10-12 23:31:52,370 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 23:31:52,370 INFO  L471      AbstractCegarLoop]: Abstraction has 4890 states and 7330 transitions.
[2024-10-12 23:31:52,370 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:31:52,370 INFO  L276                IsEmpty]: Start isEmpty. Operand 4890 states and 7330 transitions.
[2024-10-12 23:31:52,374 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 439
[2024-10-12 23:31:52,374 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 23:31:52,375 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 23:31:52,375 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-12 23:31:52,375 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 23:31:52,375 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 23:31:52,376 INFO  L85        PathProgramCache]: Analyzing trace with hash 1896970140, now seen corresponding path program 1 times
[2024-10-12 23:31:52,376 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 23:31:52,376 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614905399]
[2024-10-12 23:31:52,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 23:31:52,376 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 23:31:52,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 23:31:53,220 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 23:31:53,221 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 23:31:53,221 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614905399]
[2024-10-12 23:31:53,221 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614905399] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 23:31:53,221 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 23:31:53,221 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 23:31:53,221 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006928726]
[2024-10-12 23:31:53,222 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 23:31:53,222 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-12 23:31:53,222 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 23:31:53,223 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-12 23:31:53,223 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-12 23:31:53,223 INFO  L87              Difference]: Start difference. First operand 4890 states and 7330 transitions. Second operand  has 5 states, 5 states have (on average 87.6) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:31:53,450 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 23:31:53,450 INFO  L93              Difference]: Finished difference Result 14094 states and 21129 transitions.
[2024-10-12 23:31:53,451 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-12 23:31:53,451 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 87.6) internal successors, (438), 4 states have internal predecessors, (438), 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 438
[2024-10-12 23:31:53,452 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 23:31:53,476 INFO  L225             Difference]: With dead ends: 14094
[2024-10-12 23:31:53,476 INFO  L226             Difference]: Without dead ends: 9485
[2024-10-12 23:31:53,485 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-10-12 23:31:53,485 INFO  L432           NwaCegarLoop]: 7321 mSDtfsCounter, 6880 mSDsluCounter, 21539 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6880 SdHoareTripleChecker+Valid, 28860 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 23:31:53,486 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6880 Valid, 28860 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 23:31:53,497 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9485 states.
[2024-10-12 23:31:53,582 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9485 to 5468.
[2024-10-12 23:31:53,595 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5468 states, 5467 states have (on average 1.4991768794585696) internal successors, (8196), 5467 states have internal predecessors, (8196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:31:53,607 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5468 states to 5468 states and 8196 transitions.
[2024-10-12 23:31:53,608 INFO  L78                 Accepts]: Start accepts. Automaton has 5468 states and 8196 transitions. Word has length 438
[2024-10-12 23:31:53,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 23:31:53,609 INFO  L471      AbstractCegarLoop]: Abstraction has 5468 states and 8196 transitions.
[2024-10-12 23:31:53,609 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 87.6) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:31:53,609 INFO  L276                IsEmpty]: Start isEmpty. Operand 5468 states and 8196 transitions.
[2024-10-12 23:31:53,754 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2742
[2024-10-12 23:31:53,755 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 23:31:53,756 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-10-12 23:31:53,757 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-12 23:31:53,757 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 23:31:53,757 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 23:31:53,758 INFO  L85        PathProgramCache]: Analyzing trace with hash 1485671208, now seen corresponding path program 1 times
[2024-10-12 23:31:53,758 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 23:31:53,758 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278107680]
[2024-10-12 23:31:53,759 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 23:31:53,759 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 23:32:04,172 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 23:32:13,185 INFO  L134       CoverageAnalysis]: Checked inductivity of 294 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2024-10-12 23:32:13,185 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 23:32:13,186 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278107680]
[2024-10-12 23:32:13,186 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278107680] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 23:32:13,186 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 23:32:13,186 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-10-12 23:32:13,186 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611028706]
[2024-10-12 23:32:13,186 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 23:32:13,188 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-12 23:32:13,188 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 23:32:13,190 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-12 23:32:13,190 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-10-12 23:32:13,191 INFO  L87              Difference]: Start difference. First operand 5468 states and 8196 transitions. Second operand  has 5 states, 5 states have (on average 490.8) internal successors, (2454), 5 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:32:13,361 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 23:32:13,362 INFO  L93              Difference]: Finished difference Result 10081 states and 15110 transitions.
[2024-10-12 23:32:13,362 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 23:32:13,364 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 490.8) internal successors, (2454), 5 states have internal predecessors, (2454), 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 2741
[2024-10-12 23:32:13,367 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 23:32:13,381 INFO  L225             Difference]: With dead ends: 10081
[2024-10-12 23:32:13,381 INFO  L226             Difference]: Without dead ends: 5472
[2024-10-12 23:32:13,386 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-10-12 23:32:13,387 INFO  L432           NwaCegarLoop]: 7323 mSDtfsCounter, 0 mSDsluCounter, 21956 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29279 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 23:32:13,387 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29279 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 23:32:13,392 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5472 states.
[2024-10-12 23:32:13,447 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 5468.
[2024-10-12 23:32:13,453 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5468 states, 5467 states have (on average 1.4991768794585696) internal successors, (8196), 5467 states have internal predecessors, (8196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:32:13,466 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5468 states to 5468 states and 8196 transitions.
[2024-10-12 23:32:13,466 INFO  L78                 Accepts]: Start accepts. Automaton has 5468 states and 8196 transitions. Word has length 2741
[2024-10-12 23:32:13,469 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 23:32:13,469 INFO  L471      AbstractCegarLoop]: Abstraction has 5468 states and 8196 transitions.
[2024-10-12 23:32:13,470 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 490.8) internal successors, (2454), 5 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:32:13,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 5468 states and 8196 transitions.
[2024-10-12 23:32:13,502 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2743
[2024-10-12 23:32:13,503 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 23:32:13,504 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-10-12 23:32:13,504 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-12 23:32:13,505 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 23:32:13,505 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 23:32:13,506 INFO  L85        PathProgramCache]: Analyzing trace with hash -279943199, now seen corresponding path program 1 times
[2024-10-12 23:32:13,506 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 23:32:13,506 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876238802]
[2024-10-12 23:32:13,507 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 23:32:13,507 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 23:32:24,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 23:32:32,935 INFO  L134       CoverageAnalysis]: Checked inductivity of 294 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked.
[2024-10-12 23:32:32,935 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 23:32:32,935 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876238802]
[2024-10-12 23:32:32,935 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876238802] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 23:32:32,935 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 23:32:32,936 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-10-12 23:32:32,936 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719314760]
[2024-10-12 23:32:32,936 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 23:32:32,938 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-12 23:32:32,938 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 23:32:32,942 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-12 23:32:32,942 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-10-12 23:32:32,943 INFO  L87              Difference]: Start difference. First operand 5468 states and 8196 transitions. Second operand  has 5 states, 5 states have (on average 491.4) internal successors, (2457), 5 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:32:33,189 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 23:32:33,191 INFO  L93              Difference]: Finished difference Result 10085 states and 15116 transitions.
[2024-10-12 23:32:33,191 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 23:32:33,192 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 491.4) internal successors, (2457), 5 states have internal predecessors, (2457), 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 2742
[2024-10-12 23:32:33,195 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 23:32:33,204 INFO  L225             Difference]: With dead ends: 10085
[2024-10-12 23:32:33,206 INFO  L226             Difference]: Without dead ends: 5472
[2024-10-12 23:32:33,210 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
[2024-10-12 23:32:33,211 INFO  L432           NwaCegarLoop]: 7323 mSDtfsCounter, 0 mSDsluCounter, 14638 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21961 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-12 23:32:33,211 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21961 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-12 23:32:33,217 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5472 states.
[2024-10-12 23:32:33,264 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 5470.
[2024-10-12 23:32:33,269 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5470 states, 5469 states have (on average 1.4989943316876944) internal successors, (8198), 5469 states have internal predecessors, (8198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:32:33,274 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 8198 transitions.
[2024-10-12 23:32:33,275 INFO  L78                 Accepts]: Start accepts. Automaton has 5470 states and 8198 transitions. Word has length 2742
[2024-10-12 23:32:33,277 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 23:32:33,277 INFO  L471      AbstractCegarLoop]: Abstraction has 5470 states and 8198 transitions.
[2024-10-12 23:32:33,278 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 491.4) internal successors, (2457), 5 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-12 23:32:33,278 INFO  L276                IsEmpty]: Start isEmpty. Operand 5470 states and 8198 transitions.
[2024-10-12 23:32:33,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2744
[2024-10-12 23:32:33,309 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 23:32:33,310 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-10-12 23:32:33,311 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-12 23:32:33,311 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 23:32:33,311 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 23:32:33,312 INFO  L85        PathProgramCache]: Analyzing trace with hash 1025891425, now seen corresponding path program 1 times
[2024-10-12 23:32:33,312 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 23:32:33,312 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717755378]
[2024-10-12 23:32:33,313 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 23:32:33,313 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms