./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label30.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
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/eca-rers2012/Problem01_label30.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 6b291da6da115062c14f66e51226c64b32b538a6c3d52e3544b8930bfb203253
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 09:37:18,291 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 09:37:18,375 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 09:37:18,382 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 09:37:18,382 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 09:37:18,409 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 09:37:18,411 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 09:37:18,412 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 09:37:18,412 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 09:37:18,414 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 09:37:18,415 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 09:37:18,415 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 09:37:18,415 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 09:37:18,416 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 09:37:18,418 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 09:37:18,418 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 09:37:18,418 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 09:37:18,419 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 09:37:18,419 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 09:37:18,419 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 09:37:18,419 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 09:37:18,423 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 09:37:18,423 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 09:37:18,423 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 09:37:18,423 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 09:37:18,424 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 09:37:18,424 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 09:37:18,424 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 09:37:18,425 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 09:37:18,425 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 09:37:18,425 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 09:37:18,426 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 09:37:18,426 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 09:37:18,427 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 09:37:18,427 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 09:37:18,427 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 09:37:18,427 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 09:37:18,428 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 09:37:18,428 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 09:37:18,428 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 09:37:18,428 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 09:37:18,429 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 09:37:18,429 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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b291da6da115062c14f66e51226c64b32b538a6c3d52e3544b8930bfb203253
[2024-11-18 09:37:18,675 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 09:37:18,700 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 09:37:18,704 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 09:37:18,705 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 09:37:18,705 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 09:37:18,706 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label30.c
[2024-11-18 09:37:20,170 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 09:37:20,436 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 09:37:20,438 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label30.c
[2024-11-18 09:37:20,454 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797f978c4/20fbf8f73cf34aa59bcac4b2abaf13b5/FLAG8d781dec1
[2024-11-18 09:37:20,473 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797f978c4/20fbf8f73cf34aa59bcac4b2abaf13b5
[2024-11-18 09:37:20,476 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 09:37:20,478 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 09:37:20,482 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 09:37:20,482 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 09:37:20,488 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 09:37:20,489 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:37:20" (1/1) ...
[2024-11-18 09:37:20,490 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577e769f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:20, skipping insertion in model container
[2024-11-18 09:37:20,490 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:37:20" (1/1) ...
[2024-11-18 09:37:20,539 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 09:37:20,905 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/eca-rers2012/Problem01_label30.c[21088,21101]
[2024-11-18 09:37:20,937 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 09:37:20,947 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 09:37:21,045 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/eca-rers2012/Problem01_label30.c[21088,21101]
[2024-11-18 09:37:21,059 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 09:37:21,082 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 09:37:21,085 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21 WrapperNode
[2024-11-18 09:37:21,086 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 09:37:21,087 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 09:37:21,087 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 09:37:21,087 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 09:37:21,094 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,114 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,208 INFO  L138                Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 658
[2024-11-18 09:37:21,208 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 09:37:21,209 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 09:37:21,209 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 09:37:21,209 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 09:37:21,241 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,241 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,269 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,312 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].
[2024-11-18 09:37:21,313 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,313 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,339 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,352 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,360 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,368 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,378 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 09:37:21,381 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 09:37:21,381 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 09:37:21,382 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 09:37:21,382 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (1/1) ...
[2024-11-18 09:37:21,389 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 09:37:21,399 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:37:21,422 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)
[2024-11-18 09:37:21,429 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
[2024-11-18 09:37:21,477 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 09:37:21,477 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 09:37:21,478 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 09:37:21,478 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 09:37:21,553 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 09:37:21,555 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 09:37:22,503 INFO  L?                        ?]: Removed 75 outVars from TransFormulas that were not future-live.
[2024-11-18 09:37:22,504 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 09:37:22,526 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 09:37:22,527 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 09:37:22,527 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:37:22 BoogieIcfgContainer
[2024-11-18 09:37:22,528 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 09:37:22,530 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 09:37:22,530 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 09:37:22,534 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 09:37:22,535 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:37:20" (1/3) ...
[2024-11-18 09:37:22,535 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:37:22, skipping insertion in model container
[2024-11-18 09:37:22,536 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:37:21" (2/3) ...
[2024-11-18 09:37:22,536 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:37:22, skipping insertion in model container
[2024-11-18 09:37:22,536 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:37:22" (3/3) ...
[2024-11-18 09:37:22,538 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem01_label30.c
[2024-11-18 09:37:22,577 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 09:37:22,577 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 09:37:22,654 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 09:37:22,664 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;@5dc25792, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 09:37:22,665 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 09:37:22,672 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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)
[2024-11-18 09:37:22,685 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-18 09:37:22,685 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:22,686 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]
[2024-11-18 09:37:22,687 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:22,694 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:22,694 INFO  L85        PathProgramCache]: Analyzing trace with hash -1318724346, now seen corresponding path program 1 times
[2024-11-18 09:37:22,704 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:22,704 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986111051]
[2024-11-18 09:37:22,705 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:22,706 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:22,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:23,628 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:37:23,629 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:23,629 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986111051]
[2024-11-18 09:37:23,630 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986111051] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:23,630 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:37:23,630 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:37:23,632 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317902577]
[2024-11-18 09:37:23,633 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:23,639 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 09:37:23,640 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:23,670 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 09:37:23,671 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:23,675 INFO  L87              Difference]: Start difference. First operand  has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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)
[2024-11-18 09:37:24,745 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:24,746 INFO  L93              Difference]: Finished difference Result 662 states and 1178 transitions.
[2024-11-18 09:37:24,747 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 09:37:24,748 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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 125
[2024-11-18 09:37:24,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:24,760 INFO  L225             Difference]: With dead ends: 662
[2024-11-18 09:37:24,760 INFO  L226             Difference]: Without dead ends: 397
[2024-11-18 09:37:24,763 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:37:24,767 INFO  L432           NwaCegarLoop]: 65 mSDtfsCounter, 305 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:24,768 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 81 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-18 09:37:24,783 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 397 states.
[2024-11-18 09:37:24,818 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397.
[2024-11-18 09:37:24,821 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 397 states, 396 states have (on average 1.3055555555555556) internal successors, (517), 396 states have internal predecessors, (517), 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)
[2024-11-18 09:37:24,822 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 517 transitions.
[2024-11-18 09:37:24,826 INFO  L78                 Accepts]: Start accepts. Automaton has 397 states and 517 transitions. Word has length 125
[2024-11-18 09:37:24,827 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:24,827 INFO  L471      AbstractCegarLoop]: Abstraction has 397 states and 517 transitions.
[2024-11-18 09:37:24,828 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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)
[2024-11-18 09:37:24,828 INFO  L276                IsEmpty]: Start isEmpty. Operand 397 states and 517 transitions.
[2024-11-18 09:37:24,834 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2024-11-18 09:37:24,834 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:24,835 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-18 09:37:24,835 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-18 09:37:24,835 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:24,836 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:24,850 INFO  L85        PathProgramCache]: Analyzing trace with hash 1433476435, now seen corresponding path program 1 times
[2024-11-18 09:37:24,851 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:24,851 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121297636]
[2024-11-18 09:37:24,851 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:24,851 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:24,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:25,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:37:25,356 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:25,356 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121297636]
[2024-11-18 09:37:25,356 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121297636] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:25,357 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:37:25,357 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:37:25,357 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219517707]
[2024-11-18 09:37:25,357 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:25,358 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 09:37:25,359 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:25,360 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 09:37:25,360 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:25,362 INFO  L87              Difference]: Start difference. First operand 397 states and 517 transitions. Second operand  has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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)
[2024-11-18 09:37:25,966 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:25,966 INFO  L93              Difference]: Finished difference Result 887 states and 1235 transitions.
[2024-11-18 09:37:25,967 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 09:37:25,967 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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 132
[2024-11-18 09:37:25,968 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:25,970 INFO  L225             Difference]: With dead ends: 887
[2024-11-18 09:37:25,970 INFO  L226             Difference]: Without dead ends: 528
[2024-11-18 09:37:25,971 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:25,973 INFO  L432           NwaCegarLoop]: 71 mSDtfsCounter, 128 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:25,973 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 81 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-18 09:37:25,975 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 528 states.
[2024-11-18 09:37:25,992 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 397.
[2024-11-18 09:37:25,993 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 397 states, 396 states have (on average 1.196969696969697) internal successors, (474), 396 states have internal predecessors, (474), 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)
[2024-11-18 09:37:25,994 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 474 transitions.
[2024-11-18 09:37:25,994 INFO  L78                 Accepts]: Start accepts. Automaton has 397 states and 474 transitions. Word has length 132
[2024-11-18 09:37:25,994 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:25,995 INFO  L471      AbstractCegarLoop]: Abstraction has 397 states and 474 transitions.
[2024-11-18 09:37:25,995 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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)
[2024-11-18 09:37:25,995 INFO  L276                IsEmpty]: Start isEmpty. Operand 397 states and 474 transitions.
[2024-11-18 09:37:26,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-11-18 09:37:26,001 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:26,001 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 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]
[2024-11-18 09:37:26,001 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 09:37:26,001 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:26,002 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:26,002 INFO  L85        PathProgramCache]: Analyzing trace with hash 1235549653, now seen corresponding path program 1 times
[2024-11-18 09:37:26,006 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:26,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907951075]
[2024-11-18 09:37:26,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:26,007 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:26,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:26,189 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-18 09:37:26,192 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:26,192 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907951075]
[2024-11-18 09:37:26,192 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907951075] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:26,192 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:37:26,192 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 09:37:26,192 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685179794]
[2024-11-18 09:37:26,193 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:26,193 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:37:26,193 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:26,194 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:37:26,194 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:37:26,197 INFO  L87              Difference]: Start difference. First operand 397 states and 474 transitions. Second operand  has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 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)
[2024-11-18 09:37:26,549 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:26,550 INFO  L93              Difference]: Finished difference Result 923 states and 1105 transitions.
[2024-11-18 09:37:26,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:37:26,551 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 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 140
[2024-11-18 09:37:26,551 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:26,553 INFO  L225             Difference]: With dead ends: 923
[2024-11-18 09:37:26,553 INFO  L226             Difference]: Without dead ends: 528
[2024-11-18 09:37:26,554 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:37:26,556 INFO  L432           NwaCegarLoop]: 42 mSDtfsCounter, 125 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:26,556 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 46 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 09:37:26,558 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 528 states.
[2024-11-18 09:37:26,571 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528.
[2024-11-18 09:37:26,572 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 528 states, 527 states have (on average 1.1707779886148009) internal successors, (617), 527 states have internal predecessors, (617), 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)
[2024-11-18 09:37:26,574 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 617 transitions.
[2024-11-18 09:37:26,575 INFO  L78                 Accepts]: Start accepts. Automaton has 528 states and 617 transitions. Word has length 140
[2024-11-18 09:37:26,575 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:26,575 INFO  L471      AbstractCegarLoop]: Abstraction has 528 states and 617 transitions.
[2024-11-18 09:37:26,576 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 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)
[2024-11-18 09:37:26,576 INFO  L276                IsEmpty]: Start isEmpty. Operand 528 states and 617 transitions.
[2024-11-18 09:37:26,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2024-11-18 09:37:26,578 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:26,579 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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]
[2024-11-18 09:37:26,579 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 09:37:26,579 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:26,580 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:26,580 INFO  L85        PathProgramCache]: Analyzing trace with hash -382953037, now seen corresponding path program 1 times
[2024-11-18 09:37:26,580 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:26,581 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670921160]
[2024-11-18 09:37:26,581 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:26,581 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:26,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:26,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-18 09:37:26,741 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:26,741 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670921160]
[2024-11-18 09:37:26,741 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670921160] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:26,741 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:37:26,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:37:26,742 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670762040]
[2024-11-18 09:37:26,742 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:26,742 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:37:26,744 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:26,744 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:37:26,745 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:37:26,745 INFO  L87              Difference]: Start difference. First operand 528 states and 617 transitions. Second operand  has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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)
[2024-11-18 09:37:27,119 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:27,119 INFO  L93              Difference]: Finished difference Result 1578 states and 1846 transitions.
[2024-11-18 09:37:27,120 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:37:27,120 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 149
[2024-11-18 09:37:27,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:27,126 INFO  L225             Difference]: With dead ends: 1578
[2024-11-18 09:37:27,127 INFO  L226             Difference]: Without dead ends: 1052
[2024-11-18 09:37:27,128 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:37:27,129 INFO  L432           NwaCegarLoop]: 24 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:27,132 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 28 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 09:37:27,133 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1052 states.
[2024-11-18 09:37:27,160 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 921.
[2024-11-18 09:37:27,164 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 921 states, 920 states have (on average 1.1891304347826086) internal successors, (1094), 920 states have internal predecessors, (1094), 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)
[2024-11-18 09:37:27,167 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1094 transitions.
[2024-11-18 09:37:27,168 INFO  L78                 Accepts]: Start accepts. Automaton has 921 states and 1094 transitions. Word has length 149
[2024-11-18 09:37:27,168 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:27,168 INFO  L471      AbstractCegarLoop]: Abstraction has 921 states and 1094 transitions.
[2024-11-18 09:37:27,169 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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)
[2024-11-18 09:37:27,170 INFO  L276                IsEmpty]: Start isEmpty. Operand 921 states and 1094 transitions.
[2024-11-18 09:37:27,175 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2024-11-18 09:37:27,175 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:27,175 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-18 09:37:27,176 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 09:37:27,176 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:27,177 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:27,177 INFO  L85        PathProgramCache]: Analyzing trace with hash 796323556, now seen corresponding path program 1 times
[2024-11-18 09:37:27,177 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:27,178 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432805395]
[2024-11-18 09:37:27,178 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:27,178 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:27,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:27,422 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-18 09:37:27,423 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:27,423 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432805395]
[2024-11-18 09:37:27,424 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432805395] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:27,424 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:37:27,424 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:37:27,425 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513972402]
[2024-11-18 09:37:27,425 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:27,426 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 09:37:27,426 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:27,426 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 09:37:27,428 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:27,428 INFO  L87              Difference]: Start difference. First operand 921 states and 1094 transitions. Second operand  has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 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)
[2024-11-18 09:37:27,989 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:27,989 INFO  L93              Difference]: Finished difference Result 2364 states and 2857 transitions.
[2024-11-18 09:37:27,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 09:37:27,990 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 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 155
[2024-11-18 09:37:27,990 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:27,995 INFO  L225             Difference]: With dead ends: 2364
[2024-11-18 09:37:27,996 INFO  L226             Difference]: Without dead ends: 1445
[2024-11-18 09:37:27,997 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:27,998 INFO  L432           NwaCegarLoop]: 27 mSDtfsCounter, 258 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:27,999 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 36 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-18 09:37:28,001 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1445 states.
[2024-11-18 09:37:28,023 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1183.
[2024-11-18 09:37:28,025 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1183 states, 1182 states have (on average 1.1776649746192893) internal successors, (1392), 1182 states have internal predecessors, (1392), 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)
[2024-11-18 09:37:28,028 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1392 transitions.
[2024-11-18 09:37:28,029 INFO  L78                 Accepts]: Start accepts. Automaton has 1183 states and 1392 transitions. Word has length 155
[2024-11-18 09:37:28,029 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:28,029 INFO  L471      AbstractCegarLoop]: Abstraction has 1183 states and 1392 transitions.
[2024-11-18 09:37:28,029 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 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)
[2024-11-18 09:37:28,030 INFO  L276                IsEmpty]: Start isEmpty. Operand 1183 states and 1392 transitions.
[2024-11-18 09:37:28,032 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 170
[2024-11-18 09:37:28,032 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:28,033 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-18 09:37:28,033 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 09:37:28,033 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:28,034 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:28,034 INFO  L85        PathProgramCache]: Analyzing trace with hash -1320007935, now seen corresponding path program 1 times
[2024-11-18 09:37:28,034 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:28,034 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525957892]
[2024-11-18 09:37:28,034 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:28,034 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:28,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:28,304 INFO  L134       CoverageAnalysis]: Checked inductivity of 60 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-18 09:37:28,305 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:28,305 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525957892]
[2024-11-18 09:37:28,305 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525957892] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:28,305 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:37:28,305 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:37:28,306 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670490563]
[2024-11-18 09:37:28,306 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:28,306 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 09:37:28,306 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:28,307 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 09:37:28,307 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:28,307 INFO  L87              Difference]: Start difference. First operand 1183 states and 1392 transitions. Second operand  has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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)
[2024-11-18 09:37:28,887 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:28,887 INFO  L93              Difference]: Finished difference Result 3019 states and 3514 transitions.
[2024-11-18 09:37:28,888 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 09:37:28,888 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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 169
[2024-11-18 09:37:28,888 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:28,894 INFO  L225             Difference]: With dead ends: 3019
[2024-11-18 09:37:28,894 INFO  L226             Difference]: Without dead ends: 1707
[2024-11-18 09:37:28,896 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:28,897 INFO  L432           NwaCegarLoop]: 30 mSDtfsCounter, 245 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:28,897 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 40 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-18 09:37:28,900 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1707 states.
[2024-11-18 09:37:28,923 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576.
[2024-11-18 09:37:28,926 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1576 states, 1575 states have (on average 1.1403174603174604) internal successors, (1796), 1575 states have internal predecessors, (1796), 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)
[2024-11-18 09:37:28,929 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1796 transitions.
[2024-11-18 09:37:28,930 INFO  L78                 Accepts]: Start accepts. Automaton has 1576 states and 1796 transitions. Word has length 169
[2024-11-18 09:37:28,930 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:28,930 INFO  L471      AbstractCegarLoop]: Abstraction has 1576 states and 1796 transitions.
[2024-11-18 09:37:28,930 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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)
[2024-11-18 09:37:28,931 INFO  L276                IsEmpty]: Start isEmpty. Operand 1576 states and 1796 transitions.
[2024-11-18 09:37:28,934 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 187
[2024-11-18 09:37:28,934 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:28,934 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 09:37:28,935 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-18 09:37:28,935 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:28,935 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:28,935 INFO  L85        PathProgramCache]: Analyzing trace with hash 1887014276, now seen corresponding path program 1 times
[2024-11-18 09:37:28,935 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:28,936 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894657325]
[2024-11-18 09:37:28,936 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:28,936 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:28,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:29,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 77 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:37:29,175 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:29,175 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894657325]
[2024-11-18 09:37:29,175 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894657325] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:29,176 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:37:29,176 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 09:37:29,176 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530911099]
[2024-11-18 09:37:29,176 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:29,177 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 09:37:29,177 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:29,177 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 09:37:29,178 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:29,178 INFO  L87              Difference]: Start difference. First operand 1576 states and 1796 transitions. Second operand  has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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)
[2024-11-18 09:37:29,789 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:29,789 INFO  L93              Difference]: Finished difference Result 3543 states and 4038 transitions.
[2024-11-18 09:37:29,790 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 09:37:29,790 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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 186
[2024-11-18 09:37:29,790 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:29,797 INFO  L225             Difference]: With dead ends: 3543
[2024-11-18 09:37:29,797 INFO  L226             Difference]: Without dead ends: 1969
[2024-11-18 09:37:29,799 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:29,800 INFO  L432           NwaCegarLoop]: 17 mSDtfsCounter, 225 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:29,801 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 26 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-18 09:37:29,803 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1969 states.
[2024-11-18 09:37:29,829 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707.
[2024-11-18 09:37:29,832 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1707 states, 1706 states have (on average 1.130715123094959) internal successors, (1929), 1706 states have internal predecessors, (1929), 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)
[2024-11-18 09:37:29,837 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1929 transitions.
[2024-11-18 09:37:29,837 INFO  L78                 Accepts]: Start accepts. Automaton has 1707 states and 1929 transitions. Word has length 186
[2024-11-18 09:37:29,838 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:29,838 INFO  L471      AbstractCegarLoop]: Abstraction has 1707 states and 1929 transitions.
[2024-11-18 09:37:29,838 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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)
[2024-11-18 09:37:29,838 INFO  L276                IsEmpty]: Start isEmpty. Operand 1707 states and 1929 transitions.
[2024-11-18 09:37:29,842 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 212
[2024-11-18 09:37:29,843 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:29,843 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 09:37:29,843 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-18 09:37:29,843 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:29,844 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:29,844 INFO  L85        PathProgramCache]: Analyzing trace with hash 1514671075, now seen corresponding path program 1 times
[2024-11-18 09:37:29,844 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:29,844 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944399779]
[2024-11-18 09:37:29,844 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:29,845 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:29,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:30,152 INFO  L134       CoverageAnalysis]: Checked inductivity of 161 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked.
[2024-11-18 09:37:30,152 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:30,153 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944399779]
[2024-11-18 09:37:30,153 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944399779] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:30,153 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:37:30,153 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:37:30,153 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242673586]
[2024-11-18 09:37:30,153 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:30,154 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 09:37:30,154 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:30,156 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 09:37:30,156 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:30,156 INFO  L87              Difference]: Start difference. First operand 1707 states and 1929 transitions. Second operand  has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 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)
[2024-11-18 09:37:30,780 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:30,780 INFO  L93              Difference]: Finished difference Result 3674 states and 4206 transitions.
[2024-11-18 09:37:30,781 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 09:37:30,781 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 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 211
[2024-11-18 09:37:30,781 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:30,788 INFO  L225             Difference]: With dead ends: 3674
[2024-11-18 09:37:30,788 INFO  L226             Difference]: Without dead ends: 1969
[2024-11-18 09:37:30,791 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:37:30,792 INFO  L432           NwaCegarLoop]: 32 mSDtfsCounter, 253 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:30,792 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 44 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-18 09:37:30,794 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1969 states.
[2024-11-18 09:37:30,822 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1969.
[2024-11-18 09:37:30,824 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1969 states, 1968 states have (on average 1.1316056910569106) internal successors, (2227), 1968 states have internal predecessors, (2227), 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)
[2024-11-18 09:37:30,829 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2227 transitions.
[2024-11-18 09:37:30,829 INFO  L78                 Accepts]: Start accepts. Automaton has 1969 states and 2227 transitions. Word has length 211
[2024-11-18 09:37:30,830 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:30,830 INFO  L471      AbstractCegarLoop]: Abstraction has 1969 states and 2227 transitions.
[2024-11-18 09:37:30,830 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 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)
[2024-11-18 09:37:30,830 INFO  L276                IsEmpty]: Start isEmpty. Operand 1969 states and 2227 transitions.
[2024-11-18 09:37:30,834 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 230
[2024-11-18 09:37:30,834 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:30,835 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-18 09:37:30,835 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-18 09:37:30,835 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:30,835 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:30,836 INFO  L85        PathProgramCache]: Analyzing trace with hash 330684196, now seen corresponding path program 1 times
[2024-11-18 09:37:30,836 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:30,836 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737210345]
[2024-11-18 09:37:30,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:30,836 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:30,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:31,028 INFO  L134       CoverageAnalysis]: Checked inductivity of 186 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked.
[2024-11-18 09:37:31,028 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:31,028 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737210345]
[2024-11-18 09:37:31,028 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737210345] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:31,029 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:37:31,029 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:37:31,029 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950284514]
[2024-11-18 09:37:31,029 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:31,029 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:37:31,029 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:31,030 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:37:31,030 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:37:31,030 INFO  L87              Difference]: Start difference. First operand 1969 states and 2227 transitions. Second operand  has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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)
[2024-11-18 09:37:31,407 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:31,408 INFO  L93              Difference]: Finished difference Result 4198 states and 4725 transitions.
[2024-11-18 09:37:31,409 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:37:31,410 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 229
[2024-11-18 09:37:31,410 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:31,417 INFO  L225             Difference]: With dead ends: 4198
[2024-11-18 09:37:31,418 INFO  L226             Difference]: Without dead ends: 2231
[2024-11-18 09:37:31,421 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:37:31,422 INFO  L432           NwaCegarLoop]: 173 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:31,422 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 179 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 09:37:31,424 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2231 states.
[2024-11-18 09:37:31,461 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2100.
[2024-11-18 09:37:31,466 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2100 states, 2099 states have (on average 1.10814673654121) internal successors, (2326), 2099 states have internal predecessors, (2326), 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)
[2024-11-18 09:37:31,471 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2326 transitions.
[2024-11-18 09:37:31,472 INFO  L78                 Accepts]: Start accepts. Automaton has 2100 states and 2326 transitions. Word has length 229
[2024-11-18 09:37:31,473 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:31,473 INFO  L471      AbstractCegarLoop]: Abstraction has 2100 states and 2326 transitions.
[2024-11-18 09:37:31,474 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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)
[2024-11-18 09:37:31,474 INFO  L276                IsEmpty]: Start isEmpty. Operand 2100 states and 2326 transitions.
[2024-11-18 09:37:31,478 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2024-11-18 09:37:31,479 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:31,479 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-18 09:37:31,479 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-18 09:37:31,479 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:31,480 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:31,480 INFO  L85        PathProgramCache]: Analyzing trace with hash 1135462701, now seen corresponding path program 1 times
[2024-11-18 09:37:31,480 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:31,480 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731559171]
[2024-11-18 09:37:31,480 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:31,481 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:31,536 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:31,746 INFO  L134       CoverageAnalysis]: Checked inductivity of 218 backedges. 124 proven. 67 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2024-11-18 09:37:31,747 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:31,747 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731559171]
[2024-11-18 09:37:31,747 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731559171] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:37:31,747 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192237268]
[2024-11-18 09:37:31,747 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:31,748 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:37:31,748 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:37:31,750 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)
[2024-11-18 09:37:31,772 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-18 09:37:31,915 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:31,919 INFO  L255         TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-18 09:37:31,933 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:37:32,171 INFO  L134       CoverageAnalysis]: Checked inductivity of 218 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked.
[2024-11-18 09:37:32,171 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:37:32,171 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [192237268] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:32,171 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:37:32,172 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2024-11-18 09:37:32,172 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712390647]
[2024-11-18 09:37:32,172 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:32,172 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:37:32,172 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:32,173 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:37:32,173 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:37:32,173 INFO  L87              Difference]: Start difference. First operand 2100 states and 2326 transitions. Second operand  has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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)
[2024-11-18 09:37:32,553 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:32,553 INFO  L93              Difference]: Finished difference Result 4198 states and 4650 transitions.
[2024-11-18 09:37:32,554 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:37:32,554 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 251
[2024-11-18 09:37:32,554 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:32,562 INFO  L225             Difference]: With dead ends: 4198
[2024-11-18 09:37:32,562 INFO  L226             Difference]: Without dead ends: 2100
[2024-11-18 09:37:32,565 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:37:32,566 INFO  L432           NwaCegarLoop]: 166 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:32,567 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 172 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 09:37:32,569 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2100 states.
[2024-11-18 09:37:32,595 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969.
[2024-11-18 09:37:32,598 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1969 states, 1968 states have (on average 1.0741869918699187) internal successors, (2114), 1968 states have internal predecessors, (2114), 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)
[2024-11-18 09:37:32,603 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2114 transitions.
[2024-11-18 09:37:32,603 INFO  L78                 Accepts]: Start accepts. Automaton has 1969 states and 2114 transitions. Word has length 251
[2024-11-18 09:37:32,604 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:32,604 INFO  L471      AbstractCegarLoop]: Abstraction has 1969 states and 2114 transitions.
[2024-11-18 09:37:32,604 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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)
[2024-11-18 09:37:32,604 INFO  L276                IsEmpty]: Start isEmpty. Operand 1969 states and 2114 transitions.
[2024-11-18 09:37:32,609 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 268
[2024-11-18 09:37:32,609 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:37:32,610 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-18 09:37:32,630 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-18 09:37:32,810 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-18 09:37:32,811 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:37:32,811 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:37:32,812 INFO  L85        PathProgramCache]: Analyzing trace with hash -1118272749, now seen corresponding path program 1 times
[2024-11-18 09:37:32,812 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:37:32,812 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078706741]
[2024-11-18 09:37:32,812 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:32,812 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:37:32,870 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:33,453 INFO  L134       CoverageAnalysis]: Checked inductivity of 285 backedges. 175 proven. 83 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2024-11-18 09:37:33,453 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:37:33,454 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078706741]
[2024-11-18 09:37:33,454 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078706741] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:37:33,454 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35500183]
[2024-11-18 09:37:33,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:37:33,454 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:37:33,455 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:37:33,457 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)
[2024-11-18 09:37:33,458 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-18 09:37:33,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:37:33,627 INFO  L255         TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-18 09:37:33,636 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:37:33,829 INFO  L134       CoverageAnalysis]: Checked inductivity of 285 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-18 09:37:33,829 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:37:33,829 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [35500183] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:37:33,830 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:37:33,830 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-11-18 09:37:33,830 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902017762]
[2024-11-18 09:37:33,830 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:37:33,831 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:37:33,831 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:37:33,832 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:37:33,832 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-11-18 09:37:33,832 INFO  L87              Difference]: Start difference. First operand 1969 states and 2114 transitions. Second operand  has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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)
[2024-11-18 09:37:34,215 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:37:34,216 INFO  L93              Difference]: Finished difference Result 4065 states and 4378 transitions.
[2024-11-18 09:37:34,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:37:34,216 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 267
[2024-11-18 09:37:34,217 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:37:34,217 INFO  L225             Difference]: With dead ends: 4065
[2024-11-18 09:37:34,217 INFO  L226             Difference]: Without dead ends: 0
[2024-11-18 09:37:34,221 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-11-18 09:37:34,222 INFO  L432           NwaCegarLoop]: 156 mSDtfsCounter, 13 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-18 09:37:34,222 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 161 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-18 09:37:34,222 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-18 09:37:34,223 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-18 09:37:34,223 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2024-11-18 09:37:34,223 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-18 09:37:34,223 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 267
[2024-11-18 09:37:34,223 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:37:34,223 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-18 09:37:34,224 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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)
[2024-11-18 09:37:34,224 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-18 09:37:34,224 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-18 09:37:34,227 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-18 09:37:34,246 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-18 09:37:34,427 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-11-18 09:37:34,431 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 09:37:34,433 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-18 09:37:34,669 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-18 09:37:34,691 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:37:34 BoogieIcfgContainer
[2024-11-18 09:37:34,692 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-18 09:37:34,692 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-18 09:37:34,692 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-18 09:37:34,693 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-18 09:37:34,693 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:37:22" (3/4) ...
[2024-11-18 09:37:34,695 INFO  L142         WitnessPrinter]: Generating witness for correct program
[2024-11-18 09:37:34,718 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-18 09:37:34,719 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-18 09:37:34,720 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-18 09:37:34,721 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-18 09:37:34,868 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-18 09:37:34,869 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-18 09:37:34,869 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-18 09:37:34,870 INFO  L158              Benchmark]: Toolchain (without parser) took 14392.14ms. Allocated memory was 176.2MB in the beginning and 432.0MB in the end (delta: 255.9MB). Free memory was 118.4MB in the beginning and 227.4MB in the end (delta: -108.9MB). Peak memory consumption was 148.8MB. Max. memory is 16.1GB.
[2024-11-18 09:37:34,870 INFO  L158              Benchmark]: CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-18 09:37:34,870 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 604.47ms. Allocated memory is still 176.2MB. Free memory was 118.4MB in the beginning and 88.7MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
[2024-11-18 09:37:34,871 INFO  L158              Benchmark]: Boogie Procedure Inliner took 121.36ms. Allocated memory is still 176.2MB. Free memory was 88.7MB in the beginning and 141.5MB in the end (delta: -52.8MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB.
[2024-11-18 09:37:34,871 INFO  L158              Benchmark]: Boogie Preprocessor took 171.41ms. Allocated memory is still 176.2MB. Free memory was 141.5MB in the beginning and 135.6MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-11-18 09:37:34,871 INFO  L158              Benchmark]: RCFGBuilder took 1146.60ms. Allocated memory is still 176.2MB. Free memory was 135.6MB in the beginning and 51.7MB in the end (delta: 83.9MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB.
[2024-11-18 09:37:34,871 INFO  L158              Benchmark]: TraceAbstraction took 12161.55ms. Allocated memory was 176.2MB in the beginning and 432.0MB in the end (delta: 255.9MB). Free memory was 51.7MB in the beginning and 240.0MB in the end (delta: -188.3MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB.
[2024-11-18 09:37:34,872 INFO  L158              Benchmark]: Witness Printer took 176.87ms. Allocated memory is still 432.0MB. Free memory was 238.9MB in the beginning and 227.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-18 09:37:34,873 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 604.47ms. Allocated memory is still 176.2MB. Free memory was 118.4MB in the beginning and 88.7MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 121.36ms. Allocated memory is still 176.2MB. Free memory was 88.7MB in the beginning and 141.5MB in the end (delta: -52.8MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 171.41ms. Allocated memory is still 176.2MB. Free memory was 141.5MB in the beginning and 135.6MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
 * RCFGBuilder took 1146.60ms. Allocated memory is still 176.2MB. Free memory was 135.6MB in the beginning and 51.7MB in the end (delta: 83.9MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB.
 * TraceAbstraction took 12161.55ms. Allocated memory was 176.2MB in the beginning and 432.0MB in the end (delta: 255.9MB). Free memory was 51.7MB in the beginning and 240.0MB in the end (delta: -188.3MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB.
 * Witness Printer took 176.87ms. Allocated memory is still 432.0MB. Free memory was 238.9MB in the beginning and 227.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 561]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.8s, OverallIterations: 11, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1785 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1785 mSDsluCounter, 894 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 889 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4989 IncrementalHoareTripleChecker+Invalid, 5878 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 889 mSolverCounterUnsat, 803 mSDtfsCounter, 4989 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 555 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=9, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1179 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 2532 NumberOfCodeBlocks, 2532 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2519 ConstructedInterpolants, 0 QuantifiedInterpolants, 10376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 916 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 1447/1597 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 593]: Loop Invariant
    Derived loop invariant: (((((((((a21 <= 0) && (a16 <= 5)) || ((((((a12 == 8) && (a8 == 13)) && (a21 == 1)) && (a17 == 1)) && (a20 == 1)) && (a16 == 4))) || ((a21 <= 0) && (a17 <= 0))) || (((a7 != 1) && (a17 <= 0)) && (a21 == 1))) || (((a17 <= 0) && (a21 == 1)) && (a16 <= 5))) || ((((a7 != 1) && (6 <= a16)) && (a21 == 1)) && (a17 == 1))) || ((((a12 == 8) && (a7 != 1)) && (a21 == 1)) && (a17 == 1))) || ((((a20 != 1) && (a7 != 1)) && (a21 == 1)) && (a17 == 1)))
RESULT: Ultimate proved your program to be correct!
[2024-11-18 09:37:34,904 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE