./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label52.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/Problem03_label52.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 dadc4a7f56d2eeb12d7009442a875d9c494d437949017438f5005c98bfcd0bea
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 09:42:30,808 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 09:42:30,892 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 09:42:30,899 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 09:42:30,899 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 09:42:30,932 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 09:42:30,932 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 09:42:30,933 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 09:42:30,933 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 09:42:30,934 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 09:42:30,934 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 09:42:30,935 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 09:42:30,935 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 09:42:30,936 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 09:42:30,936 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 09:42:30,937 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 09:42:30,937 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 09:42:30,938 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 09:42:30,938 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 09:42:30,938 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 09:42:30,939 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 09:42:30,939 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 09:42:30,940 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 09:42:30,940 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 09:42:30,941 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 09:42:30,941 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 09:42:30,941 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 09:42:30,942 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 09:42:30,942 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 09:42:30,942 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 09:42:30,942 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 09:42:30,943 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 09:42:30,943 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 09:42:30,943 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 09:42:30,944 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 09:42:30,944 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 09:42:30,944 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 09:42:30,945 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 09:42:30,945 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 09:42:30,945 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 09:42:30,945 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 09:42:30,946 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 09:42:30,946 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 -> dadc4a7f56d2eeb12d7009442a875d9c494d437949017438f5005c98bfcd0bea
[2024-11-18 09:42:31,219 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 09:42:31,247 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 09:42:31,250 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 09:42:31,252 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 09:42:31,252 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 09:42:31,253 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label52.c
[2024-11-18 09:42:32,754 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 09:42:33,098 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 09:42:33,099 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label52.c
[2024-11-18 09:42:33,127 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39711994/bdb604fdc3974038b1c8bf651de2c20c/FLAG5872dea7c
[2024-11-18 09:42:33,334 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39711994/bdb604fdc3974038b1c8bf651de2c20c
[2024-11-18 09:42:33,337 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 09:42:33,338 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 09:42:33,339 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 09:42:33,339 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 09:42:33,344 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 09:42:33,345 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:42:33" (1/1) ...
[2024-11-18 09:42:33,346 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f3b3fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:33, skipping insertion in model container
[2024-11-18 09:42:33,346 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:42:33" (1/1) ...
[2024-11-18 09:42:33,410 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 09:42:33,985 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/Problem03_label52.c[53923,53936]
[2024-11-18 09:42:34,030 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 09:42:34,040 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 09:42:34,207 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/Problem03_label52.c[53923,53936]
[2024-11-18 09:42:34,227 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 09:42:34,249 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 09:42:34,250 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34 WrapperNode
[2024-11-18 09:42:34,251 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 09:42:34,252 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 09:42:34,252 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 09:42:34,252 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 09:42:34,259 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,302 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,405 INFO  L138                Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1772
[2024-11-18 09:42:34,406 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 09:42:34,407 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 09:42:34,407 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 09:42:34,407 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 09:42:34,418 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,418 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,427 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,476 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 09:42:34,476 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,477 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,518 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,536 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,551 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,560 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,569 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 09:42:34,571 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 09:42:34,572 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 09:42:34,572 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 09:42:34,573 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (1/1) ...
[2024-11-18 09:42:34,579 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 09:42:34,589 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:42:34,603 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 09:42:34,605 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 09:42:34,640 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 09:42:34,640 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 09:42:34,640 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 09:42:34,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 09:42:34,720 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 09:42:34,723 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 09:42:36,592 INFO  L?                        ?]: Removed 147 outVars from TransFormulas that were not future-live.
[2024-11-18 09:42:36,593 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 09:42:36,620 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 09:42:36,623 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 09:42:36,624 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:42:36 BoogieIcfgContainer
[2024-11-18 09:42:36,624 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 09:42:36,627 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 09:42:36,628 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 09:42:36,632 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 09:42:36,632 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:42:33" (1/3) ...
[2024-11-18 09:42:36,633 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da16454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:42:36, skipping insertion in model container
[2024-11-18 09:42:36,633 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:42:34" (2/3) ...
[2024-11-18 09:42:36,634 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da16454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:42:36, skipping insertion in model container
[2024-11-18 09:42:36,634 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:42:36" (3/3) ...
[2024-11-18 09:42:36,636 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem03_label52.c
[2024-11-18 09:42:36,654 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 09:42:36,654 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 09:42:36,733 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 09:42:36,744 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;@2fe6d938, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 09:42:36,745 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 09:42:36,752 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 09:42:36,768 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2024-11-18 09:42:36,769 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:36,770 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 09:42:36,770 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:36,775 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:36,776 INFO  L85        PathProgramCache]: Analyzing trace with hash 657543978, now seen corresponding path program 1 times
[2024-11-18 09:42:36,785 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:36,785 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022404683]
[2024-11-18 09:42:36,786 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:36,786 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:37,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:37,646 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 09:42:37,647 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:37,647 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022404683]
[2024-11-18 09:42:37,648 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022404683] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:37,648 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:37,649 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 09:42:37,650 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021246545]
[2024-11-18 09:42:37,651 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:37,656 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:37,657 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:37,686 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:37,687 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:37,691 INFO  L87              Difference]: Start difference. First operand  has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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 09:42:38,807 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:38,808 INFO  L93              Difference]: Finished difference Result 857 states and 1498 transitions.
[2024-11-18 09:42:38,809 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:38,810 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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 146
[2024-11-18 09:42:38,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:38,823 INFO  L225             Difference]: With dead ends: 857
[2024-11-18 09:42:38,823 INFO  L226             Difference]: Without dead ends: 462
[2024-11-18 09:42:38,827 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 09:42:38,830 INFO  L432           NwaCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:38,832 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 187 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-18 09:42:38,848 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 462 states.
[2024-11-18 09:42:38,890 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 460.
[2024-11-18 09:42:38,892 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 460 states, 459 states have (on average 1.5381263616557734) internal successors, (706), 459 states have internal predecessors, (706), 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 09:42:38,894 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 706 transitions.
[2024-11-18 09:42:38,895 INFO  L78                 Accepts]: Start accepts. Automaton has 460 states and 706 transitions. Word has length 146
[2024-11-18 09:42:38,896 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:38,896 INFO  L471      AbstractCegarLoop]: Abstraction has 460 states and 706 transitions.
[2024-11-18 09:42:38,897 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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 09:42:38,897 INFO  L276                IsEmpty]: Start isEmpty. Operand 460 states and 706 transitions.
[2024-11-18 09:42:38,902 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2024-11-18 09:42:38,902 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:38,902 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 09:42:38,903 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-18 09:42:38,903 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:38,904 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:38,904 INFO  L85        PathProgramCache]: Analyzing trace with hash 1092853513, now seen corresponding path program 1 times
[2024-11-18 09:42:38,904 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:38,905 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581079419]
[2024-11-18 09:42:38,905 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:38,905 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:38,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:39,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:42:39,159 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:39,160 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581079419]
[2024-11-18 09:42:39,160 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581079419] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:39,160 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:39,160 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 09:42:39,160 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489947331]
[2024-11-18 09:42:39,160 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:39,166 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:39,167 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:39,168 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:39,172 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:39,173 INFO  L87              Difference]: Start difference. First operand 460 states and 706 transitions. Second operand  has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 09:42:39,922 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:39,923 INFO  L93              Difference]: Finished difference Result 1344 states and 2079 transitions.
[2024-11-18 09:42:39,924 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:39,924 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154
[2024-11-18 09:42:39,924 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:39,929 INFO  L225             Difference]: With dead ends: 1344
[2024-11-18 09:42:39,930 INFO  L226             Difference]: Without dead ends: 886
[2024-11-18 09:42:39,931 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 09:42:39,932 INFO  L432           NwaCegarLoop]: 76 mSDtfsCounter, 249 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:39,933 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 90 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-18 09:42:39,935 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 886 states.
[2024-11-18 09:42:39,972 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 870.
[2024-11-18 09:42:39,974 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 870 states, 869 states have (on average 1.5132336018411967) internal successors, (1315), 869 states have internal predecessors, (1315), 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 09:42:39,977 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1315 transitions.
[2024-11-18 09:42:39,977 INFO  L78                 Accepts]: Start accepts. Automaton has 870 states and 1315 transitions. Word has length 154
[2024-11-18 09:42:39,977 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:39,978 INFO  L471      AbstractCegarLoop]: Abstraction has 870 states and 1315 transitions.
[2024-11-18 09:42:39,978 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 09:42:39,978 INFO  L276                IsEmpty]: Start isEmpty. Operand 870 states and 1315 transitions.
[2024-11-18 09:42:39,981 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2024-11-18 09:42:39,982 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:39,982 INFO  L215           NwaCegarLoop]: trace histogram [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, 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 09:42:39,982 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 09:42:39,982 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:39,983 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:39,983 INFO  L85        PathProgramCache]: Analyzing trace with hash 1230218740, now seen corresponding path program 1 times
[2024-11-18 09:42:39,983 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:39,984 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515187566]
[2024-11-18 09:42:39,984 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:39,984 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:40,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:40,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-18 09:42:40,296 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:40,296 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515187566]
[2024-11-18 09:42:40,296 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515187566] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:40,297 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:40,297 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:42:40,297 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250404011]
[2024-11-18 09:42:40,297 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:40,297 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:40,300 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:40,300 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:40,301 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:40,301 INFO  L87              Difference]: Start difference. First operand 870 states and 1315 transitions. Second operand  has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 09:42:41,040 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:41,041 INFO  L93              Difference]: Finished difference Result 2559 states and 3882 transitions.
[2024-11-18 09:42:41,041 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:41,042 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 161
[2024-11-18 09:42:41,043 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:41,049 INFO  L225             Difference]: With dead ends: 2559
[2024-11-18 09:42:41,049 INFO  L226             Difference]: Without dead ends: 1691
[2024-11-18 09:42:41,051 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 09:42:41,053 INFO  L432           NwaCegarLoop]: 372 mSDtfsCounter, 104 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:41,053 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 402 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-18 09:42:41,055 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1691 states.
[2024-11-18 09:42:41,091 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1685.
[2024-11-18 09:42:41,093 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1685 states, 1684 states have (on average 1.4388361045130642) internal successors, (2423), 1684 states have internal predecessors, (2423), 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 09:42:41,099 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2423 transitions.
[2024-11-18 09:42:41,099 INFO  L78                 Accepts]: Start accepts. Automaton has 1685 states and 2423 transitions. Word has length 161
[2024-11-18 09:42:41,100 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:41,100 INFO  L471      AbstractCegarLoop]: Abstraction has 1685 states and 2423 transitions.
[2024-11-18 09:42:41,101 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 09:42:41,101 INFO  L276                IsEmpty]: Start isEmpty. Operand 1685 states and 2423 transitions.
[2024-11-18 09:42:41,108 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-18 09:42:41,109 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:41,109 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 09:42:41,109 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 09:42:41,109 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:41,110 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:41,111 INFO  L85        PathProgramCache]: Analyzing trace with hash 1453208832, now seen corresponding path program 1 times
[2024-11-18 09:42:41,111 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:41,111 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685043430]
[2024-11-18 09:42:41,111 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:41,111 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:41,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:41,488 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-18 09:42:41,489 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:41,489 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685043430]
[2024-11-18 09:42:41,489 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685043430] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:41,490 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:41,490 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:42:41,490 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531591174]
[2024-11-18 09:42:41,490 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:41,491 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:41,491 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:41,491 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:41,492 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:41,492 INFO  L87              Difference]: Start difference. First operand 1685 states and 2423 transitions. Second operand  has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 09:42:42,287 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:42,288 INFO  L93              Difference]: Finished difference Result 4192 states and 5968 transitions.
[2024-11-18 09:42:42,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:42,289 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 167
[2024-11-18 09:42:42,289 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:42,298 INFO  L225             Difference]: With dead ends: 4192
[2024-11-18 09:42:42,298 INFO  L226             Difference]: Without dead ends: 2509
[2024-11-18 09:42:42,302 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 09:42:42,303 INFO  L432           NwaCegarLoop]: 384 mSDtfsCounter, 216 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:42,303 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 407 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-18 09:42:42,306 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2509 states.
[2024-11-18 09:42:42,342 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2505.
[2024-11-18 09:42:42,345 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2505 states, 2504 states have (on average 1.3857827476038338) internal successors, (3470), 2504 states have internal predecessors, (3470), 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 09:42:42,353 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3470 transitions.
[2024-11-18 09:42:42,354 INFO  L78                 Accepts]: Start accepts. Automaton has 2505 states and 3470 transitions. Word has length 167
[2024-11-18 09:42:42,354 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:42,355 INFO  L471      AbstractCegarLoop]: Abstraction has 2505 states and 3470 transitions.
[2024-11-18 09:42:42,355 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 09:42:42,355 INFO  L276                IsEmpty]: Start isEmpty. Operand 2505 states and 3470 transitions.
[2024-11-18 09:42:42,359 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 170
[2024-11-18 09:42:42,359 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:42,359 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:42:42,360 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 09:42:42,360 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:42,360 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:42,361 INFO  L85        PathProgramCache]: Analyzing trace with hash 343754573, now seen corresponding path program 1 times
[2024-11-18 09:42:42,361 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:42,361 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091897509]
[2024-11-18 09:42:42,361 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:42,361 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:42,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:42,594 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:42:42,595 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:42,595 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091897509]
[2024-11-18 09:42:42,595 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091897509] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:42,597 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:42,597 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 09:42:42,597 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505597503]
[2024-11-18 09:42:42,597 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:42,598 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:42,598 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:42,598 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:42,598 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:42,599 INFO  L87              Difference]: Start difference. First operand 2505 states and 3470 transitions. Second operand  has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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 09:42:43,409 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:43,409 INFO  L93              Difference]: Finished difference Result 7464 states and 10343 transitions.
[2024-11-18 09:42:43,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:43,410 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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 09:42:43,411 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:43,430 INFO  L225             Difference]: With dead ends: 7464
[2024-11-18 09:42:43,430 INFO  L226             Difference]: Without dead ends: 4961
[2024-11-18 09:42:43,435 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 09:42:43,436 INFO  L432           NwaCegarLoop]: 123 mSDtfsCounter, 241 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:43,436 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 156 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-18 09:42:43,441 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4961 states.
[2024-11-18 09:42:43,518 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4961 to 4958.
[2024-11-18 09:42:43,525 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4958 states, 4957 states have (on average 1.333266088359895) internal successors, (6609), 4957 states have internal predecessors, (6609), 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 09:42:43,541 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4958 states to 4958 states and 6609 transitions.
[2024-11-18 09:42:43,541 INFO  L78                 Accepts]: Start accepts. Automaton has 4958 states and 6609 transitions. Word has length 169
[2024-11-18 09:42:43,541 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:43,541 INFO  L471      AbstractCegarLoop]: Abstraction has 4958 states and 6609 transitions.
[2024-11-18 09:42:43,542 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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 09:42:43,542 INFO  L276                IsEmpty]: Start isEmpty. Operand 4958 states and 6609 transitions.
[2024-11-18 09:42:43,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 175
[2024-11-18 09:42:43,581 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:43,583 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:42:43,583 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 09:42:43,583 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:43,584 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:43,584 INFO  L85        PathProgramCache]: Analyzing trace with hash 621189392, now seen corresponding path program 1 times
[2024-11-18 09:42:43,584 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:43,584 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439693194]
[2024-11-18 09:42:43,584 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:43,585 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:43,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:43,864 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:42:43,864 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:43,865 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439693194]
[2024-11-18 09:42:43,865 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439693194] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:43,865 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:43,865 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 09:42:43,865 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269565151]
[2024-11-18 09:42:43,866 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:43,866 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:43,866 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:43,867 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:43,867 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:43,868 INFO  L87              Difference]: Start difference. First operand 4958 states and 6609 transitions. Second operand  has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 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 09:42:44,755 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:44,756 INFO  L93              Difference]: Finished difference Result 12402 states and 16491 transitions.
[2024-11-18 09:42:44,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:44,756 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 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 174
[2024-11-18 09:42:44,758 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:44,787 INFO  L225             Difference]: With dead ends: 12402
[2024-11-18 09:42:44,788 INFO  L226             Difference]: Without dead ends: 7446
[2024-11-18 09:42:44,795 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 09:42:44,797 INFO  L432           NwaCegarLoop]: 110 mSDtfsCounter, 222 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:44,799 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 131 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-18 09:42:44,808 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7446 states.
[2024-11-18 09:42:44,915 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7446 to 7441.
[2024-11-18 09:42:44,927 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7441 states, 7440 states have (on average 1.3233870967741936) internal successors, (9846), 7440 states have internal predecessors, (9846), 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 09:42:44,946 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7441 states to 7441 states and 9846 transitions.
[2024-11-18 09:42:44,950 INFO  L78                 Accepts]: Start accepts. Automaton has 7441 states and 9846 transitions. Word has length 174
[2024-11-18 09:42:44,952 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:44,952 INFO  L471      AbstractCegarLoop]: Abstraction has 7441 states and 9846 transitions.
[2024-11-18 09:42:44,952 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 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 09:42:44,953 INFO  L276                IsEmpty]: Start isEmpty. Operand 7441 states and 9846 transitions.
[2024-11-18 09:42:44,961 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2024-11-18 09:42:44,962 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:44,962 INFO  L215           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:42:44,962 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-18 09:42:44,963 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:44,963 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:44,963 INFO  L85        PathProgramCache]: Analyzing trace with hash 1533082747, now seen corresponding path program 1 times
[2024-11-18 09:42:44,964 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:44,964 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74708053]
[2024-11-18 09:42:44,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:44,965 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:45,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:45,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:42:45,420 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:45,420 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74708053]
[2024-11-18 09:42:45,420 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74708053] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:42:45,420 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290989799]
[2024-11-18 09:42:45,420 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:45,421 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:42:45,421 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:42:45,423 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 09:42:45,425 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 09:42:45,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:45,621 INFO  L255         TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-18 09:42:45,635 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:42:45,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-18 09:42:45,860 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:42:45,861 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290989799] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:45,861 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:42:45,861 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-18 09:42:45,861 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422175375]
[2024-11-18 09:42:45,863 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:45,863 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:45,864 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:45,864 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:45,864 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:42:45,864 INFO  L87              Difference]: Start difference. First operand 7441 states and 9846 transitions. Second operand  has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 09:42:46,719 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:46,720 INFO  L93              Difference]: Finished difference Result 21991 states and 29091 transitions.
[2024-11-18 09:42:46,721 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:46,721 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 181
[2024-11-18 09:42:46,722 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:46,780 INFO  L225             Difference]: With dead ends: 21991
[2024-11-18 09:42:46,781 INFO  L226             Difference]: Without dead ends: 14552
[2024-11-18 09:42:46,794 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:42:46,795 INFO  L432           NwaCegarLoop]: 390 mSDtfsCounter, 90 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:46,796 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 419 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-18 09:42:46,814 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14552 states.
[2024-11-18 09:42:47,040 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14552 to 14546.
[2024-11-18 09:42:47,068 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14546 states, 14545 states have (on average 1.2149192162255071) internal successors, (17671), 14545 states have internal predecessors, (17671), 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 09:42:47,104 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14546 states to 14546 states and 17671 transitions.
[2024-11-18 09:42:47,106 INFO  L78                 Accepts]: Start accepts. Automaton has 14546 states and 17671 transitions. Word has length 181
[2024-11-18 09:42:47,106 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:47,106 INFO  L471      AbstractCegarLoop]: Abstraction has 14546 states and 17671 transitions.
[2024-11-18 09:42:47,110 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 09:42:47,110 INFO  L276                IsEmpty]: Start isEmpty. Operand 14546 states and 17671 transitions.
[2024-11-18 09:42:47,131 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 194
[2024-11-18 09:42:47,131 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:47,131 INFO  L215           NwaCegarLoop]: trace histogram [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, 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]
[2024-11-18 09:42:47,154 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-18 09:42:47,332 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:42:47,333 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:47,333 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:47,333 INFO  L85        PathProgramCache]: Analyzing trace with hash 1401996613, now seen corresponding path program 1 times
[2024-11-18 09:42:47,333 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:47,333 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875675669]
[2024-11-18 09:42:47,334 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:47,334 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:47,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:47,642 INFO  L134       CoverageAnalysis]: Checked inductivity of 47 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 09:42:47,685 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:47,685 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875675669]
[2024-11-18 09:42:47,686 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875675669] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:47,686 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:47,686 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 09:42:47,686 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227617467]
[2024-11-18 09:42:47,686 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:47,687 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:47,688 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:47,688 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:47,688 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:47,688 INFO  L87              Difference]: Start difference. First operand 14546 states and 17671 transitions. Second operand  has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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 09:42:48,607 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:48,608 INFO  L93              Difference]: Finished difference Result 36845 states and 44730 transitions.
[2024-11-18 09:42:48,609 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:48,609 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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 193
[2024-11-18 09:42:48,609 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:48,647 INFO  L225             Difference]: With dead ends: 36845
[2024-11-18 09:42:48,648 INFO  L226             Difference]: Without dead ends: 22301
[2024-11-18 09:42:48,667 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 09:42:48,668 INFO  L432           NwaCegarLoop]: 139 mSDtfsCounter, 204 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:48,669 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 156 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-18 09:42:48,693 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22301 states.
[2024-11-18 09:42:48,973 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22301 to 22299.
[2024-11-18 09:42:49,009 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22299 states, 22298 states have (on average 1.190644900887972) internal successors, (26549), 22298 states have internal predecessors, (26549), 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 09:42:49,046 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22299 states to 22299 states and 26549 transitions.
[2024-11-18 09:42:49,047 INFO  L78                 Accepts]: Start accepts. Automaton has 22299 states and 26549 transitions. Word has length 193
[2024-11-18 09:42:49,047 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:49,047 INFO  L471      AbstractCegarLoop]: Abstraction has 22299 states and 26549 transitions.
[2024-11-18 09:42:49,048 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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 09:42:49,048 INFO  L276                IsEmpty]: Start isEmpty. Operand 22299 states and 26549 transitions.
[2024-11-18 09:42:49,069 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 201
[2024-11-18 09:42:49,069 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:49,070 INFO  L215           NwaCegarLoop]: trace histogram [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, 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]
[2024-11-18 09:42:49,071 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-18 09:42:49,071 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:49,071 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:49,072 INFO  L85        PathProgramCache]: Analyzing trace with hash 562174970, now seen corresponding path program 1 times
[2024-11-18 09:42:49,072 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:49,072 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454739042]
[2024-11-18 09:42:49,072 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:49,072 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:49,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:49,233 INFO  L134       CoverageAnalysis]: Checked inductivity of 64 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-18 09:42:49,233 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:49,233 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454739042]
[2024-11-18 09:42:49,233 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454739042] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:49,233 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:49,233 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:42:49,234 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13271401]
[2024-11-18 09:42:49,234 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:49,234 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:49,234 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:49,235 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:49,235 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:49,235 INFO  L87              Difference]: Start difference. First operand 22299 states and 26549 transitions. Second operand  has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 09:42:49,813 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:49,813 INFO  L93              Difference]: Finished difference Result 64823 states and 77291 transitions.
[2024-11-18 09:42:49,814 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:49,814 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 200
[2024-11-18 09:42:49,814 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:49,911 INFO  L225             Difference]: With dead ends: 64823
[2024-11-18 09:42:49,912 INFO  L226             Difference]: Without dead ends: 42526
[2024-11-18 09:42:49,955 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 09:42:49,956 INFO  L432           NwaCegarLoop]: 653 mSDtfsCounter, 332 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:49,957 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 948 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-18 09:42:49,993 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42526 states.
[2024-11-18 09:42:50,550 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42526 to 42522.
[2024-11-18 09:42:50,596 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42522 states, 42521 states have (on average 1.1770419322217258) internal successors, (50049), 42521 states have internal predecessors, (50049), 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 09:42:50,667 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42522 states to 42522 states and 50049 transitions.
[2024-11-18 09:42:50,668 INFO  L78                 Accepts]: Start accepts. Automaton has 42522 states and 50049 transitions. Word has length 200
[2024-11-18 09:42:50,668 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:50,668 INFO  L471      AbstractCegarLoop]: Abstraction has 42522 states and 50049 transitions.
[2024-11-18 09:42:50,669 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 09:42:50,669 INFO  L276                IsEmpty]: Start isEmpty. Operand 42522 states and 50049 transitions.
[2024-11-18 09:42:50,713 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 208
[2024-11-18 09:42:50,714 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:50,714 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 09:42:50,714 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-18 09:42:50,715 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:50,715 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:50,715 INFO  L85        PathProgramCache]: Analyzing trace with hash -775382883, now seen corresponding path program 2 times
[2024-11-18 09:42:50,715 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:50,716 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149461171]
[2024-11-18 09:42:50,716 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-18 09:42:50,716 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:50,935 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-18 09:42:50,935 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-18 09:42:51,118 INFO  L134       CoverageAnalysis]: Checked inductivity of 88 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-11-18 09:42:51,119 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:51,119 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149461171]
[2024-11-18 09:42:51,119 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149461171] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:51,119 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:51,119 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:42:51,119 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951897802]
[2024-11-18 09:42:51,120 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:51,120 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:51,120 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:51,121 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:51,121 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:51,121 INFO  L87              Difference]: Start difference. First operand 42522 states and 50049 transitions. Second operand  has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 09:42:52,225 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:52,226 INFO  L93              Difference]: Finished difference Result 83161 states and 97704 transitions.
[2024-11-18 09:42:52,226 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:52,226 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207
[2024-11-18 09:42:52,226 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:52,301 INFO  L225             Difference]: With dead ends: 83161
[2024-11-18 09:42:52,302 INFO  L226             Difference]: Without dead ends: 40641
[2024-11-18 09:42:52,328 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 09:42:52,329 INFO  L432           NwaCegarLoop]: 360 mSDtfsCounter, 277 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:52,330 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 385 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-18 09:42:52,360 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40641 states.
[2024-11-18 09:42:52,774 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40641 to 40637.
[2024-11-18 09:42:52,813 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40637 states, 40636 states have (on average 1.1377350132887096) internal successors, (46233), 40636 states have internal predecessors, (46233), 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 09:42:53,006 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40637 states to 40637 states and 46233 transitions.
[2024-11-18 09:42:53,007 INFO  L78                 Accepts]: Start accepts. Automaton has 40637 states and 46233 transitions. Word has length 207
[2024-11-18 09:42:53,007 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:53,008 INFO  L471      AbstractCegarLoop]: Abstraction has 40637 states and 46233 transitions.
[2024-11-18 09:42:53,008 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 09:42:53,008 INFO  L276                IsEmpty]: Start isEmpty. Operand 40637 states and 46233 transitions.
[2024-11-18 09:42:53,049 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 217
[2024-11-18 09:42:53,049 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:53,050 INFO  L215           NwaCegarLoop]: trace histogram [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, 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]
[2024-11-18 09:42:53,050 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-18 09:42:53,050 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:53,051 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:53,051 INFO  L85        PathProgramCache]: Analyzing trace with hash -1742331789, now seen corresponding path program 1 times
[2024-11-18 09:42:53,051 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:53,051 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485665719]
[2024-11-18 09:42:53,051 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:53,051 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:53,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:53,477 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2024-11-18 09:42:53,478 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:53,478 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485665719]
[2024-11-18 09:42:53,478 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485665719] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:53,478 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:53,478 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 09:42:53,479 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315700354]
[2024-11-18 09:42:53,479 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:53,479 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:53,479 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:53,480 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:53,480 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:53,481 INFO  L87              Difference]: Start difference. First operand 40637 states and 46233 transitions. Second operand  has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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 09:42:54,510 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:54,510 INFO  L93              Difference]: Finished difference Result 95076 states and 109249 transitions.
[2024-11-18 09:42:54,511 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:54,511 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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 216
[2024-11-18 09:42:54,511 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:54,591 INFO  L225             Difference]: With dead ends: 95076
[2024-11-18 09:42:54,592 INFO  L226             Difference]: Without dead ends: 54441
[2024-11-18 09:42:54,626 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 09:42:54,627 INFO  L432           NwaCegarLoop]: 166 mSDtfsCounter, 178 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:54,627 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 199 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-18 09:42:54,674 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54441 states.
[2024-11-18 09:42:55,386 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54441 to 54441.
[2024-11-18 09:42:55,424 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54441 states, 54440 states have (on average 1.1151359294636296) internal successors, (60708), 54440 states have internal predecessors, (60708), 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 09:42:55,498 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54441 states to 54441 states and 60708 transitions.
[2024-11-18 09:42:55,499 INFO  L78                 Accepts]: Start accepts. Automaton has 54441 states and 60708 transitions. Word has length 216
[2024-11-18 09:42:55,499 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:55,499 INFO  L471      AbstractCegarLoop]: Abstraction has 54441 states and 60708 transitions.
[2024-11-18 09:42:55,500 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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 09:42:55,500 INFO  L276                IsEmpty]: Start isEmpty. Operand 54441 states and 60708 transitions.
[2024-11-18 09:42:55,517 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2024-11-18 09:42:55,518 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:55,518 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:42:55,518 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-18 09:42:55,518 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:55,519 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:55,519 INFO  L85        PathProgramCache]: Analyzing trace with hash -2061399050, now seen corresponding path program 1 times
[2024-11-18 09:42:55,519 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:55,519 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236178324]
[2024-11-18 09:42:55,519 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:55,519 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:55,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:56,222 INFO  L134       CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:42:56,222 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:56,223 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236178324]
[2024-11-18 09:42:56,223 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236178324] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:42:56,223 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541423335]
[2024-11-18 09:42:56,223 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:56,223 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:42:56,224 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:42:56,225 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 09:42:56,227 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 09:42:56,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:56,413 INFO  L255         TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-18 09:42:56,421 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:42:56,616 INFO  L134       CoverageAnalysis]: Checked inductivity of 73 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:42:56,618 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:42:56,618 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [541423335] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:56,619 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:42:56,619 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-18 09:42:56,619 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928662234]
[2024-11-18 09:42:56,619 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:56,621 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:56,621 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:56,621 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:56,622 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:42:56,623 INFO  L87              Difference]: Start difference. First operand 54441 states and 60708 transitions. Second operand  has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 09:42:57,624 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:42:57,624 INFO  L93              Difference]: Finished difference Result 107492 states and 119764 transitions.
[2024-11-18 09:42:57,624 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:42:57,625 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 220
[2024-11-18 09:42:57,625 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:42:57,699 INFO  L225             Difference]: With dead ends: 107492
[2024-11-18 09:42:57,699 INFO  L226             Difference]: Without dead ends: 53053
[2024-11-18 09:42:57,744 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 219 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 09:42:57,745 INFO  L432           NwaCegarLoop]: 393 mSDtfsCounter, 92 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-18 09:42:57,745 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 415 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-18 09:42:57,789 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53053 states.
[2024-11-18 09:42:58,324 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53053 to 53017.
[2024-11-18 09:42:58,363 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53017 states, 53016 states have (on average 1.1097781801720235) internal successors, (58836), 53016 states have internal predecessors, (58836), 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 09:42:58,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53017 states to 53017 states and 58836 transitions.
[2024-11-18 09:42:58,684 INFO  L78                 Accepts]: Start accepts. Automaton has 53017 states and 58836 transitions. Word has length 220
[2024-11-18 09:42:58,685 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:42:58,685 INFO  L471      AbstractCegarLoop]: Abstraction has 53017 states and 58836 transitions.
[2024-11-18 09:42:58,685 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 09:42:58,685 INFO  L276                IsEmpty]: Start isEmpty. Operand 53017 states and 58836 transitions.
[2024-11-18 09:42:58,757 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 228
[2024-11-18 09:42:58,757 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:42:58,757 INFO  L215           NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 09:42:58,774 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-18 09:42:58,958 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,SelfDestructingSolverStorable11
[2024-11-18 09:42:58,958 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:42:58,959 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:42:58,959 INFO  L85        PathProgramCache]: Analyzing trace with hash 1429396155, now seen corresponding path program 1 times
[2024-11-18 09:42:58,959 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:42:58,959 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290656478]
[2024-11-18 09:42:58,959 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:42:58,959 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:42:59,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:42:59,203 INFO  L134       CoverageAnalysis]: Checked inductivity of 81 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-18 09:42:59,204 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:42:59,204 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290656478]
[2024-11-18 09:42:59,204 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290656478] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:42:59,204 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:42:59,204 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 09:42:59,205 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586236229]
[2024-11-18 09:42:59,205 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:42:59,205 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:42:59,205 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:42:59,207 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:42:59,207 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:42:59,207 INFO  L87              Difference]: Start difference. First operand 53017 states and 58836 transitions. Second operand  has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 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 09:43:00,373 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:43:00,373 INFO  L93              Difference]: Finished difference Result 120914 states and 134815 transitions.
[2024-11-18 09:43:00,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:43:00,374 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 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 227
[2024-11-18 09:43:00,374 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:43:00,452 INFO  L225             Difference]: With dead ends: 120914
[2024-11-18 09:43:00,452 INFO  L226             Difference]: Without dead ends: 67899
[2024-11-18 09:43:00,494 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 09:43:00,494 INFO  L432           NwaCegarLoop]: 188 mSDtfsCounter, 170 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-18 09:43:00,495 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 222 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-18 09:43:00,530 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 67899 states.
[2024-11-18 09:43:01,298 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 67899 to 63375.
[2024-11-18 09:43:01,344 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 63375 states, 63374 states have (on average 1.1205699498216934) internal successors, (71015), 63374 states have internal predecessors, (71015), 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 09:43:01,412 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63375 states to 63375 states and 71015 transitions.
[2024-11-18 09:43:01,414 INFO  L78                 Accepts]: Start accepts. Automaton has 63375 states and 71015 transitions. Word has length 227
[2024-11-18 09:43:01,414 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:43:01,414 INFO  L471      AbstractCegarLoop]: Abstraction has 63375 states and 71015 transitions.
[2024-11-18 09:43:01,414 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 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 09:43:01,414 INFO  L276                IsEmpty]: Start isEmpty. Operand 63375 states and 71015 transitions.
[2024-11-18 09:43:01,444 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 249
[2024-11-18 09:43:01,444 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:43:01,444 INFO  L215           NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 09:43:01,444 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-18 09:43:01,445 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:43:01,445 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:43:01,445 INFO  L85        PathProgramCache]: Analyzing trace with hash 1310461643, now seen corresponding path program 1 times
[2024-11-18 09:43:01,445 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:43:01,445 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439218968]
[2024-11-18 09:43:01,446 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:01,446 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:43:01,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:02,110 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:43:02,110 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:43:02,110 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439218968]
[2024-11-18 09:43:02,110 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439218968] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:43:02,110 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:43:02,111 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 09:43:02,111 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963214888]
[2024-11-18 09:43:02,111 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:43:02,111 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 09:43:02,111 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:43:02,112 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 09:43:02,112 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 09:43:02,112 INFO  L87              Difference]: Start difference. First operand 63375 states and 71015 transitions. Second operand  has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 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 09:43:03,504 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:43:03,504 INFO  L93              Difference]: Finished difference Result 135533 states and 151862 transitions.
[2024-11-18 09:43:03,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 09:43:03,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 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 248
[2024-11-18 09:43:03,505 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:43:03,600 INFO  L225             Difference]: With dead ends: 135533
[2024-11-18 09:43:03,600 INFO  L226             Difference]: Without dead ends: 72160
[2024-11-18 09:43:03,648 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 09:43:03,649 INFO  L432           NwaCegarLoop]: 127 mSDtfsCounter, 357 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-18 09:43:03,649 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 168 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-18 09:43:03,700 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72160 states.
[2024-11-18 09:43:04,452 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72160 to 69697.
[2024-11-18 09:43:04,498 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 69697 states, 69696 states have (on average 1.1186868686868687) internal successors, (77968), 69696 states have internal predecessors, (77968), 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 09:43:04,912 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 69697 states to 69697 states and 77968 transitions.
[2024-11-18 09:43:04,914 INFO  L78                 Accepts]: Start accepts. Automaton has 69697 states and 77968 transitions. Word has length 248
[2024-11-18 09:43:04,914 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:43:04,914 INFO  L471      AbstractCegarLoop]: Abstraction has 69697 states and 77968 transitions.
[2024-11-18 09:43:04,914 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 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 09:43:04,915 INFO  L276                IsEmpty]: Start isEmpty. Operand 69697 states and 77968 transitions.
[2024-11-18 09:43:04,957 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2024-11-18 09:43:04,958 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:43:04,958 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 09:43:04,958 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-18 09:43:04,959 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:43:04,959 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:43:04,959 INFO  L85        PathProgramCache]: Analyzing trace with hash -1889943752, now seen corresponding path program 1 times
[2024-11-18 09:43:04,959 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:43:04,960 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676939403]
[2024-11-18 09:43:04,960 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:04,960 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:43:05,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:05,516 INFO  L134       CoverageAnalysis]: Checked inductivity of 246 backedges. 121 proven. 6 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked.
[2024-11-18 09:43:05,516 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:43:05,517 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676939403]
[2024-11-18 09:43:05,517 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676939403] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:43:05,517 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145850560]
[2024-11-18 09:43:05,517 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:05,517 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:43:05,517 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:43:05,520 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 09:43:05,521 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-18 09:43:05,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:05,707 INFO  L255         TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-18 09:43:05,712 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:43:05,754 INFO  L134       CoverageAnalysis]: Checked inductivity of 246 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked.
[2024-11-18 09:43:05,754 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:43:05,754 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145850560] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:43:05,755 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:43:05,755 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-18 09:43:05,755 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509489644]
[2024-11-18 09:43:05,755 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:43:05,756 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:43:05,756 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:43:05,757 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:43:05,757 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:43:05,757 INFO  L87              Difference]: Start difference. First operand 69697 states and 77968 transitions. Second operand  has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 09:43:06,665 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:43:06,665 INFO  L93              Difference]: Finished difference Result 192319 states and 214993 transitions.
[2024-11-18 09:43:06,665 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:43:06,666 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 09:43:06,666 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:43:06,815 INFO  L225             Difference]: With dead ends: 192319
[2024-11-18 09:43:06,815 INFO  L226             Difference]: Without dead ends: 122624
[2024-11-18 09:43:06,869 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:43:06,870 INFO  L432           NwaCegarLoop]: 608 mSDtfsCounter, 303 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 09:43:06,870 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 878 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 09:43:06,954 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 122624 states.
[2024-11-18 09:43:08,129 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 122624 to 117733.
[2024-11-18 09:43:08,215 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 117733 states, 117732 states have (on average 1.1090357761696055) internal successors, (130569), 117732 states have internal predecessors, (130569), 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 09:43:08,798 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 117733 states to 117733 states and 130569 transitions.
[2024-11-18 09:43:08,801 INFO  L78                 Accepts]: Start accepts. Automaton has 117733 states and 130569 transitions. Word has length 251
[2024-11-18 09:43:08,801 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:43:08,801 INFO  L471      AbstractCegarLoop]: Abstraction has 117733 states and 130569 transitions.
[2024-11-18 09:43:08,801 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 09:43:08,801 INFO  L276                IsEmpty]: Start isEmpty. Operand 117733 states and 130569 transitions.
[2024-11-18 09:43:08,833 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 254
[2024-11-18 09:43:08,833 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:43:08,833 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 09:43:08,846 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-18 09:43:09,033 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:43:09,034 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:43:09,035 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:43:09,035 INFO  L85        PathProgramCache]: Analyzing trace with hash -568790229, now seen corresponding path program 1 times
[2024-11-18 09:43:09,035 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:43:09,035 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85631186]
[2024-11-18 09:43:09,035 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:09,035 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:43:09,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:09,446 INFO  L134       CoverageAnalysis]: Checked inductivity of 262 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked.
[2024-11-18 09:43:09,446 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:43:09,446 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85631186]
[2024-11-18 09:43:09,447 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85631186] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:43:09,447 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020817283]
[2024-11-18 09:43:09,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:09,447 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:43:09,447 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:43:09,449 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 09:43:09,450 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-18 09:43:09,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:09,606 INFO  L255         TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-18 09:43:09,609 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:43:09,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 262 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked.
[2024-11-18 09:43:09,815 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:43:09,815 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020817283] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:43:09,815 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:43:09,816 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-18 09:43:09,816 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727904292]
[2024-11-18 09:43:09,816 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:43:09,816 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:43:09,816 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:43:09,817 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:43:09,817 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:43:09,817 INFO  L87              Difference]: Start difference. First operand 117733 states and 130569 transitions. Second operand  has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 09:43:11,265 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:43:11,265 INFO  L93              Difference]: Finished difference Result 235455 states and 261119 transitions.
[2024-11-18 09:43:11,266 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:43:11,266 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 253
[2024-11-18 09:43:11,266 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:43:11,440 INFO  L225             Difference]: With dead ends: 235455
[2024-11-18 09:43:11,440 INFO  L226             Difference]: Without dead ends: 117724
[2024-11-18 09:43:11,526 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:43:11,526 INFO  L432           NwaCegarLoop]: 321 mSDtfsCounter, 123 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-18 09:43:11,526 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 342 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-18 09:43:11,618 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 117724 states.
[2024-11-18 09:43:12,998 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 117724 to 116500.
[2024-11-18 09:43:13,564 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 116500 states, 116499 states have (on average 1.102472982600709) internal successors, (128437), 116499 states have internal predecessors, (128437), 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 09:43:13,727 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 116500 states to 116500 states and 128437 transitions.
[2024-11-18 09:43:13,730 INFO  L78                 Accepts]: Start accepts. Automaton has 116500 states and 128437 transitions. Word has length 253
[2024-11-18 09:43:13,730 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:43:13,731 INFO  L471      AbstractCegarLoop]: Abstraction has 116500 states and 128437 transitions.
[2024-11-18 09:43:13,731 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 09:43:13,731 INFO  L276                IsEmpty]: Start isEmpty. Operand 116500 states and 128437 transitions.
[2024-11-18 09:43:13,763 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 277
[2024-11-18 09:43:13,763 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:43:13,763 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 09:43:13,776 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-18 09:43:13,963 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-11-18 09:43:13,964 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:43:13,965 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:43:13,965 INFO  L85        PathProgramCache]: Analyzing trace with hash -914918116, now seen corresponding path program 1 times
[2024-11-18 09:43:13,965 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:43:13,965 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271665020]
[2024-11-18 09:43:13,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:13,965 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:43:14,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:14,319 INFO  L134       CoverageAnalysis]: Checked inductivity of 129 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:43:14,319 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:43:14,319 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271665020]
[2024-11-18 09:43:14,319 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271665020] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:43:14,319 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 09:43:14,320 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-18 09:43:14,320 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600143719]
[2024-11-18 09:43:14,320 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:43:14,320 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:43:14,321 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:43:14,321 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:43:14,321 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 09:43:14,322 INFO  L87              Difference]: Start difference. First operand 116500 states and 128437 transitions. Second operand  has 3 states, 3 states have (on average 92.0) internal successors, (276), 2 states have internal predecessors, (276), 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 09:43:15,705 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:43:15,705 INFO  L93              Difference]: Finished difference Result 248660 states and 273939 transitions.
[2024-11-18 09:43:15,705 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:43:15,706 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 92.0) internal successors, (276), 2 states have internal predecessors, (276), 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 276
[2024-11-18 09:43:15,706 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:43:15,882 INFO  L225             Difference]: With dead ends: 248660
[2024-11-18 09:43:15,882 INFO  L226             Difference]: Without dead ends: 132162
[2024-11-18 09:43:15,962 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 09:43:15,963 INFO  L432           NwaCegarLoop]: 180 mSDtfsCounter, 95 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-18 09:43:15,964 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 203 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-18 09:43:16,063 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 132162 states.
[2024-11-18 09:43:17,754 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 132162 to 131316.
[2024-11-18 09:43:17,843 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 131316 states, 131315 states have (on average 1.0876518295701176) internal successors, (142825), 131315 states have internal predecessors, (142825), 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 09:43:18,600 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 131316 states to 131316 states and 142825 transitions.
[2024-11-18 09:43:18,606 INFO  L78                 Accepts]: Start accepts. Automaton has 131316 states and 142825 transitions. Word has length 276
[2024-11-18 09:43:18,607 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:43:18,607 INFO  L471      AbstractCegarLoop]: Abstraction has 131316 states and 142825 transitions.
[2024-11-18 09:43:18,607 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 92.0) internal successors, (276), 2 states have internal predecessors, (276), 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 09:43:18,607 INFO  L276                IsEmpty]: Start isEmpty. Operand 131316 states and 142825 transitions.
[2024-11-18 09:43:18,661 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-18 09:43:18,662 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:43:18,662 INFO  L215           NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 09:43:18,662 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-18 09:43:18,662 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:43:18,662 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:43:18,663 INFO  L85        PathProgramCache]: Analyzing trace with hash 1697126471, now seen corresponding path program 1 times
[2024-11-18 09:43:18,663 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:43:18,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055288096]
[2024-11-18 09:43:18,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:18,663 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:43:18,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:19,094 INFO  L134       CoverageAnalysis]: Checked inductivity of 142 backedges. 136 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:43:19,095 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:43:19,095 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055288096]
[2024-11-18 09:43:19,095 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055288096] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:43:19,095 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958235155]
[2024-11-18 09:43:19,095 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:19,095 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:43:19,095 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:43:19,097 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 09:43:19,098 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-18 09:43:19,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:19,267 INFO  L255         TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-18 09:43:19,273 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:43:19,594 INFO  L134       CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 09:43:19,594 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:43:19,595 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958235155] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:43:19,595 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:43:19,595 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-18 09:43:19,595 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107313875]
[2024-11-18 09:43:19,595 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:43:19,596 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 09:43:19,596 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:43:19,596 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 09:43:19,596 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-18 09:43:19,596 INFO  L87              Difference]: Start difference. First operand 131316 states and 142825 transitions. Second operand  has 4 states, 4 states have (on average 70.75) internal successors, (283), 3 states have internal predecessors, (283), 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 09:43:21,415 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:43:21,415 INFO  L93              Difference]: Finished difference Result 273825 states and 298662 transitions.
[2024-11-18 09:43:21,416 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 09:43:21,416 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 70.75) internal successors, (283), 3 states have internal predecessors, (283), 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 283
[2024-11-18 09:43:21,416 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:43:21,597 INFO  L225             Difference]: With dead ends: 273825
[2024-11-18 09:43:21,598 INFO  L226             Difference]: Without dead ends: 142511
[2024-11-18 09:43:21,687 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-18 09:43:21,688 INFO  L432           NwaCegarLoop]: 125 mSDtfsCounter, 355 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-18 09:43:21,688 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 171 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-18 09:43:21,785 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 142511 states.
[2024-11-18 09:43:23,619 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 142511 to 130882.
[2024-11-18 09:43:23,709 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 130882 states, 130881 states have (on average 1.0727760331904554) internal successors, (140406), 130881 states have internal predecessors, (140406), 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 09:43:23,917 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 130882 states to 130882 states and 140406 transitions.
[2024-11-18 09:43:23,921 INFO  L78                 Accepts]: Start accepts. Automaton has 130882 states and 140406 transitions. Word has length 283
[2024-11-18 09:43:23,921 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:43:23,921 INFO  L471      AbstractCegarLoop]: Abstraction has 130882 states and 140406 transitions.
[2024-11-18 09:43:23,921 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 70.75) internal successors, (283), 3 states have internal predecessors, (283), 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 09:43:23,921 INFO  L276                IsEmpty]: Start isEmpty. Operand 130882 states and 140406 transitions.
[2024-11-18 09:43:23,984 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 290
[2024-11-18 09:43:23,984 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:43:23,985 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 09:43:23,998 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-18 09:43:24,185 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-11-18 09:43:24,186 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:43:24,186 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:43:24,186 INFO  L85        PathProgramCache]: Analyzing trace with hash 1571528202, now seen corresponding path program 1 times
[2024-11-18 09:43:24,187 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:43:24,187 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818489313]
[2024-11-18 09:43:24,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:24,187 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:43:24,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:24,731 INFO  L134       CoverageAnalysis]: Checked inductivity of 367 backedges. 153 proven. 6 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked.
[2024-11-18 09:43:24,731 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:43:24,731 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818489313]
[2024-11-18 09:43:24,731 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818489313] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:43:24,732 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082988332]
[2024-11-18 09:43:24,732 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:24,732 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:43:24,732 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:43:24,733 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 09:43:24,734 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-18 09:43:24,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:24,943 INFO  L255         TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-18 09:43:24,948 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:43:25,010 INFO  L134       CoverageAnalysis]: Checked inductivity of 367 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked.
[2024-11-18 09:43:25,011 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:43:25,011 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082988332] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:43:25,011 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:43:25,011 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2024-11-18 09:43:25,011 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547971580]
[2024-11-18 09:43:25,011 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:43:25,012 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:43:25,012 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:43:25,012 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:43:25,013 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:43:25,013 INFO  L87              Difference]: Start difference. First operand 130882 states and 140406 transitions. Second operand  has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 09:43:26,203 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:43:26,203 INFO  L93              Difference]: Finished difference Result 246970 states and 265131 transitions.
[2024-11-18 09:43:26,204 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:43:26,204 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 289
[2024-11-18 09:43:26,204 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:43:26,355 INFO  L225             Difference]: With dead ends: 246970
[2024-11-18 09:43:26,355 INFO  L226             Difference]: Without dead ends: 116090
[2024-11-18 09:43:26,435 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:43:26,436 INFO  L432           NwaCegarLoop]: 31 mSDtfsCounter, 308 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-18 09:43:26,436 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-18 09:43:26,520 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 116090 states.
[2024-11-18 09:43:27,816 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 116090 to 114060.
[2024-11-18 09:43:27,901 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 114060 states, 114059 states have (on average 1.0699374884927977) internal successors, (122036), 114059 states have internal predecessors, (122036), 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 09:43:28,030 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 114060 states to 114060 states and 122036 transitions.
[2024-11-18 09:43:28,034 INFO  L78                 Accepts]: Start accepts. Automaton has 114060 states and 122036 transitions. Word has length 289
[2024-11-18 09:43:28,034 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:43:28,035 INFO  L471      AbstractCegarLoop]: Abstraction has 114060 states and 122036 transitions.
[2024-11-18 09:43:28,035 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 09:43:28,035 INFO  L276                IsEmpty]: Start isEmpty. Operand 114060 states and 122036 transitions.
[2024-11-18 09:43:28,074 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 312
[2024-11-18 09:43:28,074 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:43:28,075 INFO  L215           NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 09:43:28,094 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-18 09:43:28,275 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:43:28,276 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:43:28,276 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:43:28,276 INFO  L85        PathProgramCache]: Analyzing trace with hash 1300233773, now seen corresponding path program 1 times
[2024-11-18 09:43:28,276 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:43:28,276 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378788357]
[2024-11-18 09:43:28,276 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:28,277 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:43:28,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:29,158 INFO  L134       CoverageAnalysis]: Checked inductivity of 204 backedges. 68 proven. 6 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked.
[2024-11-18 09:43:29,158 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:43:29,158 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378788357]
[2024-11-18 09:43:29,158 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378788357] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:43:29,158 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553711745]
[2024-11-18 09:43:29,159 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:29,159 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:43:29,159 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:43:29,161 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 09:43:29,162 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-18 09:43:29,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:29,352 INFO  L255         TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-18 09:43:29,357 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:43:29,476 INFO  L134       CoverageAnalysis]: Checked inductivity of 204 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-18 09:43:29,477 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:43:29,477 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553711745] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:43:29,477 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:43:29,477 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-18 09:43:29,478 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088784649]
[2024-11-18 09:43:29,478 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:43:29,478 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:43:29,478 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:43:29,479 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:43:29,479 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:43:29,479 INFO  L87              Difference]: Start difference. First operand 114060 states and 122036 transitions. Second operand  has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 09:43:30,852 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:43:30,852 INFO  L93              Difference]: Finished difference Result 214904 states and 229506 transitions.
[2024-11-18 09:43:30,853 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:43:30,853 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 311
[2024-11-18 09:43:30,853 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:43:31,004 INFO  L225             Difference]: With dead ends: 214904
[2024-11-18 09:43:31,005 INFO  L226             Difference]: Without dead ends: 100846
[2024-11-18 09:43:31,046 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:43:31,047 INFO  L432           NwaCegarLoop]: 295 mSDtfsCounter, 121 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-18 09:43:31,047 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 310 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-18 09:43:31,117 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100846 states.
[2024-11-18 09:43:32,463 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100846 to 91909.
[2024-11-18 09:43:32,515 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91909 states, 91908 states have (on average 1.0541519780650215) internal successors, (96885), 91908 states have internal predecessors, (96885), 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 09:43:32,617 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91909 states to 91909 states and 96885 transitions.
[2024-11-18 09:43:32,623 INFO  L78                 Accepts]: Start accepts. Automaton has 91909 states and 96885 transitions. Word has length 311
[2024-11-18 09:43:32,623 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:43:32,623 INFO  L471      AbstractCegarLoop]: Abstraction has 91909 states and 96885 transitions.
[2024-11-18 09:43:32,623 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 09:43:32,623 INFO  L276                IsEmpty]: Start isEmpty. Operand 91909 states and 96885 transitions.
[2024-11-18 09:43:32,651 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 318
[2024-11-18 09:43:32,651 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:43:32,651 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-18 09:43:32,665 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-18 09:43:32,852 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:43:32,852 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:43:32,853 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:43:32,853 INFO  L85        PathProgramCache]: Analyzing trace with hash 400304536, now seen corresponding path program 1 times
[2024-11-18 09:43:32,853 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:43:32,853 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431495298]
[2024-11-18 09:43:32,853 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:32,853 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:43:32,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:33,183 INFO  L134       CoverageAnalysis]: Checked inductivity of 286 backedges. 102 proven. 6 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked.
[2024-11-18 09:43:33,184 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:43:33,184 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431495298]
[2024-11-18 09:43:33,184 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431495298] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:43:33,184 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307468727]
[2024-11-18 09:43:33,184 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:33,184 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:43:33,184 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:43:33,186 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 09:43:33,188 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-18 09:43:33,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:33,358 INFO  L255         TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-18 09:43:33,363 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:43:33,492 INFO  L134       CoverageAnalysis]: Checked inductivity of 286 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked.
[2024-11-18 09:43:33,493 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:43:33,493 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [307468727] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:43:33,493 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:43:33,493 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-18 09:43:33,493 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669772644]
[2024-11-18 09:43:33,493 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:43:33,494 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 09:43:33,494 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:43:33,494 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 09:43:33,494 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:43:33,494 INFO  L87              Difference]: Start difference. First operand 91909 states and 96885 transitions. Second operand  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 09:43:34,637 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 09:43:34,637 INFO  L93              Difference]: Finished difference Result 185665 states and 195535 transitions.
[2024-11-18 09:43:34,637 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 09:43:34,638 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 317
[2024-11-18 09:43:34,638 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 09:43:34,742 INFO  L225             Difference]: With dead ends: 185665
[2024-11-18 09:43:34,742 INFO  L226             Difference]: Without dead ends: 93758
[2024-11-18 09:43:34,795 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 09:43:34,796 INFO  L432           NwaCegarLoop]: 318 mSDtfsCounter, 88 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-18 09:43:34,796 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 343 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-18 09:43:34,858 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93758 states.
[2024-11-18 09:43:35,888 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93758 to 91697.
[2024-11-18 09:43:35,959 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91697 states, 91696 states have (on average 1.0502421043447916) internal successors, (96303), 91696 states have internal predecessors, (96303), 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 09:43:36,061 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91697 states to 91697 states and 96303 transitions.
[2024-11-18 09:43:36,065 INFO  L78                 Accepts]: Start accepts. Automaton has 91697 states and 96303 transitions. Word has length 317
[2024-11-18 09:43:36,066 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 09:43:36,066 INFO  L471      AbstractCegarLoop]: Abstraction has 91697 states and 96303 transitions.
[2024-11-18 09:43:36,066 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 09:43:36,066 INFO  L276                IsEmpty]: Start isEmpty. Operand 91697 states and 96303 transitions.
[2024-11-18 09:43:36,098 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 352
[2024-11-18 09:43:36,098 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 09:43:36,098 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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]
[2024-11-18 09:43:36,113 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-18 09:43:36,299 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20
[2024-11-18 09:43:36,300 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 09:43:36,300 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 09:43:36,300 INFO  L85        PathProgramCache]: Analyzing trace with hash 2012699548, now seen corresponding path program 1 times
[2024-11-18 09:43:36,300 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 09:43:36,300 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112814036]
[2024-11-18 09:43:36,300 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:36,300 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 09:43:36,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:36,595 INFO  L134       CoverageAnalysis]: Checked inductivity of 354 backedges. 102 proven. 6 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2024-11-18 09:43:36,595 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 09:43:36,595 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112814036]
[2024-11-18 09:43:36,595 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112814036] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 09:43:36,595 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124092437]
[2024-11-18 09:43:36,595 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 09:43:36,595 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 09:43:36,595 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 09:43:36,596 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 09:43:36,597 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-18 09:43:37,211 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 09:43:37,213 INFO  L255         TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-18 09:43:37,219 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 09:43:37,321 INFO  L134       CoverageAnalysis]: Checked inductivity of 354 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2024-11-18 09:43:37,321 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 09:43:37,321 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124092437] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 09:43:37,321 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 09:43:37,322 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-18 09:43:37,322 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712907024]
[2024-11-18 09:43:37,322 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 09:43:37,323 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 09:43:37,323 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 09:43:37,324 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 09:43:37,324 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-18 09:43:37,324 INFO  L87              Difference]: Start difference. First operand 91697 states and 96303 transitions. Second operand  has 4 states, 4 states have (on average 45.75) internal successors, (183), 3 states have internal predecessors, (183), 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)