./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-88.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 803cd42f
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-88.i -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 483b9d73fcfcbe30e6a47224b392863d5ebfca3910dfd0deef6d7653b488cd58
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 12:06:14,905 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 12:06:14,946 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-22 12:06:14,950 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 12:06:14,950 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 12:06:14,965 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 12:06:14,965 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 12:06:14,966 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 12:06:14,966 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 12:06:14,966 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 12:06:14,967 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 12:06:14,967 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 12:06:14,967 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 12:06:14,968 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 12:06:14,968 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 12:06:14,968 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 12:06:14,968 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 12:06:14,969 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-22 12:06:14,969 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 12:06:14,969 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-22 12:06:14,970 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 12:06:14,970 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 12:06:14,970 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 12:06:14,971 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 12:06:14,971 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 12:06:14,971 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-22 12:06:14,972 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 12:06:14,972 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 12:06:14,972 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 12:06:14,972 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 12:06:14,973 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 12:06:14,973 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 12:06:14,973 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 12:06:14,973 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 12:06:14,974 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 12:06:14,974 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 12:06:14,974 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 12:06:14,974 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 12:06:14,975 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 12:06:14,975 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 12:06:14,975 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 12:06:14,975 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 12:06:14,976 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 -> 483b9d73fcfcbe30e6a47224b392863d5ebfca3910dfd0deef6d7653b488cd58
[2024-11-22 12:06:15,183 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 12:06:15,208 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 12:06:15,211 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 12:06:15,212 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 12:06:15,213 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 12:06:15,213 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-88.i
[2024-11-22 12:06:16,528 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 12:06:16,721 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 12:06:16,722 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-88.i
[2024-11-22 12:06:16,736 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/162589ede/3b1f75df05a94105bd39b94e1e06d646/FLAGa5e0c5ab6
[2024-11-22 12:06:17,098 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/162589ede/3b1f75df05a94105bd39b94e1e06d646
[2024-11-22 12:06:17,101 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 12:06:17,102 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 12:06:17,104 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 12:06:17,104 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 12:06:17,108 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 12:06:17,109 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:17,112 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2c764b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17, skipping insertion in model container
[2024-11-22 12:06:17,112 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:17,194 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 12:06:17,453 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/hardness-nfm22/hardness_operatoramount_amount500_file-88.i[916,929]
[2024-11-22 12:06:17,694 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 12:06:17,711 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 12:06:17,721 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/hardness-nfm22/hardness_operatoramount_amount500_file-88.i[916,929]
[2024-11-22 12:06:17,891 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 12:06:17,932 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 12:06:17,936 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17 WrapperNode
[2024-11-22 12:06:17,937 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 12:06:17,938 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 12:06:17,938 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 12:06:17,938 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 12:06:17,951 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:17,978 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,070 INFO  L138                Inliner]: procedures = 26, calls = 78, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 760
[2024-11-22 12:06:18,071 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 12:06:18,072 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 12:06:18,072 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 12:06:18,072 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 12:06:18,080 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,081 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,096 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,139 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].
[2024-11-22 12:06:18,140 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,140 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,171 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,183 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,198 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,206 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,221 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 12:06:18,223 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 12:06:18,223 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 12:06:18,223 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 12:06:18,224 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (1/1) ...
[2024-11-22 12:06:18,228 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 12:06:18,238 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 12:06:18,254 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)
[2024-11-22 12:06:18,260 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
[2024-11-22 12:06:18,308 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 12:06:18,308 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-22 12:06:18,308 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-22 12:06:18,308 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 12:06:18,308 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 12:06:18,308 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 12:06:18,407 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 12:06:18,408 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 12:06:19,425 INFO  L?                        ?]: Removed 119 outVars from TransFormulas that were not future-live.
[2024-11-22 12:06:19,426 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 12:06:19,445 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 12:06:19,445 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-22 12:06:19,445 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:06:19 BoogieIcfgContainer
[2024-11-22 12:06:19,446 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 12:06:19,447 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 12:06:19,447 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 12:06:19,450 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 12:06:19,450 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:06:17" (1/3) ...
[2024-11-22 12:06:19,451 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dffece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:06:19, skipping insertion in model container
[2024-11-22 12:06:19,451 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:06:17" (2/3) ...
[2024-11-22 12:06:19,452 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dffece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:06:19, skipping insertion in model container
[2024-11-22 12:06:19,452 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:06:19" (3/3) ...
[2024-11-22 12:06:19,453 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-88.i
[2024-11-22 12:06:19,465 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 12:06:19,465 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-22 12:06:19,531 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 12:06:19,538 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;@5a568ce5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 12:06:19,539 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-22 12:06:19,544 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 306 states, 238 states have (on average 1.550420168067227) internal successors, (369), 239 states have internal predecessors, (369), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65)
[2024-11-22 12:06:19,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 465
[2024-11-22 12:06:19,575 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 12:06:19,577 INFO  L215           NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 12:06:19,577 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 12:06:19,583 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 12:06:19,584 INFO  L85        PathProgramCache]: Analyzing trace with hash 1192747511, now seen corresponding path program 1 times
[2024-11-22 12:06:19,591 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 12:06:19,591 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277801316]
[2024-11-22 12:06:19,591 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 12:06:19,592 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 12:06:19,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 12:06:20,076 INFO  L134       CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked.
[2024-11-22 12:06:20,078 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 12:06:20,078 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277801316]
[2024-11-22 12:06:20,079 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277801316] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 12:06:20,079 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316865260]
[2024-11-22 12:06:20,080 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 12:06:20,080 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 12:06:20,080 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 12:06:20,087 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)
[2024-11-22 12:06:20,092 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-22 12:06:20,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 12:06:20,422 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-22 12:06:20,433 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 12:06:20,467 INFO  L134       CoverageAnalysis]: Checked inductivity of 8320 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked.
[2024-11-22 12:06:20,468 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 12:06:20,468 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [316865260] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 12:06:20,468 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 12:06:20,468 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-22 12:06:20,471 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916767332]
[2024-11-22 12:06:20,471 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 12:06:20,475 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-22 12:06:20,475 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 12:06:20,491 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-22 12:06:20,492 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 12:06:20,494 INFO  L87              Difference]: Start difference. First operand  has 306 states, 238 states have (on average 1.550420168067227) internal successors, (369), 239 states have internal predecessors, (369), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand  has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65)
[2024-11-22 12:06:20,540 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 12:06:20,541 INFO  L93              Difference]: Finished difference Result 605 states and 1057 transitions.
[2024-11-22 12:06:20,542 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-22 12:06:20,543 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65) Word has length 464
[2024-11-22 12:06:20,543 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 12:06:20,553 INFO  L225             Difference]: With dead ends: 605
[2024-11-22 12:06:20,553 INFO  L226             Difference]: Without dead ends: 302
[2024-11-22 12:06:20,560 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 12:06:20,564 INFO  L432           NwaCegarLoop]: 492 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 12:06:20,565 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 12:06:20,581 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 302 states.
[2024-11-22 12:06:20,636 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302.
[2024-11-22 12:06:20,638 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 302 states, 235 states have (on average 1.5404255319148936) internal successors, (362), 235 states have internal predecessors, (362), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65)
[2024-11-22 12:06:20,643 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 492 transitions.
[2024-11-22 12:06:20,648 INFO  L78                 Accepts]: Start accepts. Automaton has 302 states and 492 transitions. Word has length 464
[2024-11-22 12:06:20,649 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 12:06:20,649 INFO  L471      AbstractCegarLoop]: Abstraction has 302 states and 492 transitions.
[2024-11-22 12:06:20,649 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65)
[2024-11-22 12:06:20,649 INFO  L276                IsEmpty]: Start isEmpty. Operand 302 states and 492 transitions.
[2024-11-22 12:06:20,659 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 465
[2024-11-22 12:06:20,659 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 12:06:20,659 INFO  L215           NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 12:06:20,672 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-22 12:06:20,860 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-22 12:06:20,861 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 12:06:20,862 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 12:06:20,862 INFO  L85        PathProgramCache]: Analyzing trace with hash -1630816699, now seen corresponding path program 1 times
[2024-11-22 12:06:20,862 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 12:06:20,862 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223869252]
[2024-11-22 12:06:20,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 12:06:20,862 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 12:06:20,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 12:06:21,223 INFO  L134       CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked.
[2024-11-22 12:06:21,225 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 12:06:21,225 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223869252]
[2024-11-22 12:06:21,225 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223869252] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 12:06:21,225 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 12:06:21,225 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 12:06:21,226 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553953997]
[2024-11-22 12:06:21,226 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 12:06:21,229 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 12:06:21,229 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 12:06:21,230 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 12:06:21,230 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 12:06:21,230 INFO  L87              Difference]: Start difference. First operand 302 states and 492 transitions. Second operand  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:21,355 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 12:06:21,357 INFO  L93              Difference]: Finished difference Result 799 states and 1301 transitions.
[2024-11-22 12:06:21,357 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 12:06:21,358 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 464
[2024-11-22 12:06:21,359 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 12:06:21,365 INFO  L225             Difference]: With dead ends: 799
[2024-11-22 12:06:21,366 INFO  L226             Difference]: Without dead ends: 500
[2024-11-22 12:06:21,367 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
[2024-11-22 12:06:21,368 INFO  L432           NwaCegarLoop]: 536 mSDtfsCounter, 336 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 12:06:21,369 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 966 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 12:06:21,370 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 500 states.
[2024-11-22 12:06:21,404 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 497.
[2024-11-22 12:06:21,408 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 497 states, 416 states have (on average 1.5600961538461537) internal successors, (649), 417 states have internal predecessors, (649), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78)
[2024-11-22 12:06:21,410 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 805 transitions.
[2024-11-22 12:06:21,413 INFO  L78                 Accepts]: Start accepts. Automaton has 497 states and 805 transitions. Word has length 464
[2024-11-22 12:06:21,414 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 12:06:21,414 INFO  L471      AbstractCegarLoop]: Abstraction has 497 states and 805 transitions.
[2024-11-22 12:06:21,414 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:21,414 INFO  L276                IsEmpty]: Start isEmpty. Operand 497 states and 805 transitions.
[2024-11-22 12:06:21,416 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 465
[2024-11-22 12:06:21,418 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 12:06:21,418 INFO  L215           NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 12:06:21,418 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-22 12:06:21,418 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 12:06:21,419 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 12:06:21,420 INFO  L85        PathProgramCache]: Analyzing trace with hash 1521648131, now seen corresponding path program 1 times
[2024-11-22 12:06:21,420 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 12:06:21,420 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895577083]
[2024-11-22 12:06:21,420 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 12:06:21,421 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 12:06:21,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 12:06:21,736 INFO  L134       CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked.
[2024-11-22 12:06:21,737 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 12:06:21,738 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895577083]
[2024-11-22 12:06:21,738 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895577083] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 12:06:21,739 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 12:06:21,739 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 12:06:21,739 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208612115]
[2024-11-22 12:06:21,739 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 12:06:21,740 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 12:06:21,740 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 12:06:21,741 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 12:06:21,741 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 12:06:21,741 INFO  L87              Difference]: Start difference. First operand 497 states and 805 transitions. Second operand  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:21,792 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 12:06:21,793 INFO  L93              Difference]: Finished difference Result 1463 states and 2368 transitions.
[2024-11-22 12:06:21,793 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 12:06:21,793 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 464
[2024-11-22 12:06:21,794 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 12:06:21,799 INFO  L225             Difference]: With dead ends: 1463
[2024-11-22 12:06:21,799 INFO  L226             Difference]: Without dead ends: 969
[2024-11-22 12:06:21,800 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
[2024-11-22 12:06:21,801 INFO  L432           NwaCegarLoop]: 488 mSDtfsCounter, 465 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 12:06:21,801 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 969 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 12:06:21,803 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 969 states.
[2024-11-22 12:06:21,828 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 505.
[2024-11-22 12:06:21,829 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 505 states, 424 states have (on average 1.5566037735849056) internal successors, (660), 425 states have internal predecessors, (660), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78)
[2024-11-22 12:06:21,831 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 816 transitions.
[2024-11-22 12:06:21,832 INFO  L78                 Accepts]: Start accepts. Automaton has 505 states and 816 transitions. Word has length 464
[2024-11-22 12:06:21,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 12:06:21,833 INFO  L471      AbstractCegarLoop]: Abstraction has 505 states and 816 transitions.
[2024-11-22 12:06:21,833 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:21,833 INFO  L276                IsEmpty]: Start isEmpty. Operand 505 states and 816 transitions.
[2024-11-22 12:06:21,835 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 465
[2024-11-22 12:06:21,835 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 12:06:21,835 INFO  L215           NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 12:06:21,836 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-22 12:06:21,836 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 12:06:21,836 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 12:06:21,836 INFO  L85        PathProgramCache]: Analyzing trace with hash 1548713733, now seen corresponding path program 1 times
[2024-11-22 12:06:21,836 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 12:06:21,836 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080584048]
[2024-11-22 12:06:21,837 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 12:06:21,837 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 12:06:21,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 12:06:22,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked.
[2024-11-22 12:06:22,311 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 12:06:22,311 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080584048]
[2024-11-22 12:06:22,312 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080584048] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 12:06:22,312 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 12:06:22,312 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 12:06:22,312 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465816067]
[2024-11-22 12:06:22,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 12:06:22,314 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 12:06:22,314 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 12:06:22,315 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 12:06:22,316 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 12:06:22,316 INFO  L87              Difference]: Start difference. First operand 505 states and 816 transitions. Second operand  has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:22,407 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 12:06:22,407 INFO  L93              Difference]: Finished difference Result 1360 states and 2198 transitions.
[2024-11-22 12:06:22,408 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 12:06:22,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 464
[2024-11-22 12:06:22,409 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 12:06:22,414 INFO  L225             Difference]: With dead ends: 1360
[2024-11-22 12:06:22,414 INFO  L226             Difference]: Without dead ends: 858
[2024-11-22 12:06:22,416 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 12:06:22,416 INFO  L432           NwaCegarLoop]: 696 mSDtfsCounter, 335 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 12:06:22,417 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 1861 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 12:06:22,420 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 858 states.
[2024-11-22 12:06:22,468 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 856.
[2024-11-22 12:06:22,470 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 856 states, 695 states have (on average 1.5381294964028778) internal successors, (1069), 697 states have internal predecessors, (1069), 156 states have call successors, (156), 4 states have call predecessors, (156), 4 states have return successors, (156), 154 states have call predecessors, (156), 156 states have call successors, (156)
[2024-11-22 12:06:22,473 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1381 transitions.
[2024-11-22 12:06:22,474 INFO  L78                 Accepts]: Start accepts. Automaton has 856 states and 1381 transitions. Word has length 464
[2024-11-22 12:06:22,475 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 12:06:22,475 INFO  L471      AbstractCegarLoop]: Abstraction has 856 states and 1381 transitions.
[2024-11-22 12:06:22,475 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:22,475 INFO  L276                IsEmpty]: Start isEmpty. Operand 856 states and 1381 transitions.
[2024-11-22 12:06:22,478 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 465
[2024-11-22 12:06:22,478 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 12:06:22,478 INFO  L215           NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 12:06:22,478 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-22 12:06:22,479 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 12:06:22,479 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 12:06:22,479 INFO  L85        PathProgramCache]: Analyzing trace with hash 272731721, now seen corresponding path program 1 times
[2024-11-22 12:06:22,482 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 12:06:22,482 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920960875]
[2024-11-22 12:06:22,483 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 12:06:22,483 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 12:06:22,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 12:06:23,033 INFO  L134       CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked.
[2024-11-22 12:06:23,033 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 12:06:23,034 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920960875]
[2024-11-22 12:06:23,034 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920960875] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 12:06:23,034 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 12:06:23,034 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 12:06:23,034 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402149946]
[2024-11-22 12:06:23,035 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 12:06:23,035 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 12:06:23,035 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 12:06:23,036 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 12:06:23,036 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 12:06:23,037 INFO  L87              Difference]: Start difference. First operand 856 states and 1381 transitions. Second operand  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:23,148 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 12:06:23,148 INFO  L93              Difference]: Finished difference Result 2301 states and 3707 transitions.
[2024-11-22 12:06:23,149 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 12:06:23,149 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 464
[2024-11-22 12:06:23,150 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 12:06:23,157 INFO  L225             Difference]: With dead ends: 2301
[2024-11-22 12:06:23,157 INFO  L226             Difference]: Without dead ends: 1471
[2024-11-22 12:06:23,160 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
[2024-11-22 12:06:23,160 INFO  L432           NwaCegarLoop]: 556 mSDtfsCounter, 310 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 12:06:23,160 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1003 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 12:06:23,162 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1471 states.
[2024-11-22 12:06:23,226 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1467.
[2024-11-22 12:06:23,228 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1467 states, 1255 states have (on average 1.545816733067729) internal successors, (1940), 1260 states have internal predecessors, (1940), 203 states have call successors, (203), 8 states have call predecessors, (203), 8 states have return successors, (203), 198 states have call predecessors, (203), 203 states have call successors, (203)
[2024-11-22 12:06:23,232 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2346 transitions.
[2024-11-22 12:06:23,233 INFO  L78                 Accepts]: Start accepts. Automaton has 1467 states and 2346 transitions. Word has length 464
[2024-11-22 12:06:23,234 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 12:06:23,234 INFO  L471      AbstractCegarLoop]: Abstraction has 1467 states and 2346 transitions.
[2024-11-22 12:06:23,234 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:23,234 INFO  L276                IsEmpty]: Start isEmpty. Operand 1467 states and 2346 transitions.
[2024-11-22 12:06:23,238 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 465
[2024-11-22 12:06:23,239 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 12:06:23,239 INFO  L215           NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 12:06:23,239 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-22 12:06:23,239 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 12:06:23,240 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 12:06:23,240 INFO  L85        PathProgramCache]: Analyzing trace with hash -2083073529, now seen corresponding path program 1 times
[2024-11-22 12:06:23,240 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 12:06:23,240 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115472187]
[2024-11-22 12:06:23,240 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 12:06:23,240 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 12:06:23,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 12:06:23,505 INFO  L134       CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked.
[2024-11-22 12:06:23,505 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 12:06:23,505 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115472187]
[2024-11-22 12:06:23,506 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115472187] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 12:06:23,506 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 12:06:23,506 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 12:06:23,506 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955402487]
[2024-11-22 12:06:23,506 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 12:06:23,507 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 12:06:23,507 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 12:06:23,507 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 12:06:23,508 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 12:06:23,508 INFO  L87              Difference]: Start difference. First operand 1467 states and 2346 transitions. Second operand  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:23,621 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 12:06:23,621 INFO  L93              Difference]: Finished difference Result 4034 states and 6425 transitions.
[2024-11-22 12:06:23,622 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 12:06:23,622 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 464
[2024-11-22 12:06:23,623 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 12:06:23,643 INFO  L225             Difference]: With dead ends: 4034
[2024-11-22 12:06:23,643 INFO  L226             Difference]: Without dead ends: 2593
[2024-11-22 12:06:23,652 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
[2024-11-22 12:06:23,652 INFO  L432           NwaCegarLoop]: 484 mSDtfsCounter, 245 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 12:06:23,652 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 950 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 12:06:23,658 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2593 states.
[2024-11-22 12:06:23,736 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 2587.
[2024-11-22 12:06:23,740 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2587 states, 2281 states have (on average 1.5418676019289785) internal successors, (3517), 2292 states have internal predecessors, (3517), 289 states have call successors, (289), 16 states have call predecessors, (289), 16 states have return successors, (289), 278 states have call predecessors, (289), 289 states have call successors, (289)
[2024-11-22 12:06:23,749 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 4095 transitions.
[2024-11-22 12:06:23,751 INFO  L78                 Accepts]: Start accepts. Automaton has 2587 states and 4095 transitions. Word has length 464
[2024-11-22 12:06:23,752 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 12:06:23,753 INFO  L471      AbstractCegarLoop]: Abstraction has 2587 states and 4095 transitions.
[2024-11-22 12:06:23,753 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:23,753 INFO  L276                IsEmpty]: Start isEmpty. Operand 2587 states and 4095 transitions.
[2024-11-22 12:06:23,757 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 465
[2024-11-22 12:06:23,757 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 12:06:23,757 INFO  L215           NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 12:06:23,758 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-22 12:06:23,758 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 12:06:23,758 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 12:06:23,758 INFO  L85        PathProgramCache]: Analyzing trace with hash 1308496063, now seen corresponding path program 1 times
[2024-11-22 12:06:23,759 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 12:06:23,759 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631178607]
[2024-11-22 12:06:23,759 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 12:06:23,759 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 12:06:23,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 12:06:24,770 INFO  L134       CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked.
[2024-11-22 12:06:24,771 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 12:06:24,771 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631178607]
[2024-11-22 12:06:24,771 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631178607] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 12:06:24,771 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 12:06:24,771 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 12:06:24,771 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282444382]
[2024-11-22 12:06:24,772 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 12:06:24,772 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 12:06:24,772 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 12:06:24,773 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 12:06:24,773 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-22 12:06:24,773 INFO  L87              Difference]: Start difference. First operand 2587 states and 4095 transitions. Second operand  has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:25,189 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 12:06:25,189 INFO  L93              Difference]: Finished difference Result 6545 states and 10333 transitions.
[2024-11-22 12:06:25,190 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 12:06:25,190 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 464
[2024-11-22 12:06:25,191 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 12:06:25,205 INFO  L225             Difference]: With dead ends: 6545
[2024-11-22 12:06:25,205 INFO  L226             Difference]: Without dead ends: 3984
[2024-11-22 12:06:25,211 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-22 12:06:25,212 INFO  L432           NwaCegarLoop]: 736 mSDtfsCounter, 603 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 12:06:25,212 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1363 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 12:06:25,215 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3984 states.
[2024-11-22 12:06:25,355 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3984 to 2383.
[2024-11-22 12:06:25,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2383 states, 2129 states have (on average 1.5514325974635979) internal successors, (3303), 2136 states have internal predecessors, (3303), 237 states have call successors, (237), 16 states have call predecessors, (237), 16 states have return successors, (237), 230 states have call predecessors, (237), 237 states have call successors, (237)
[2024-11-22 12:06:25,365 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3777 transitions.
[2024-11-22 12:06:25,367 INFO  L78                 Accepts]: Start accepts. Automaton has 2383 states and 3777 transitions. Word has length 464
[2024-11-22 12:06:25,367 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 12:06:25,368 INFO  L471      AbstractCegarLoop]: Abstraction has 2383 states and 3777 transitions.
[2024-11-22 12:06:25,368 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:25,368 INFO  L276                IsEmpty]: Start isEmpty. Operand 2383 states and 3777 transitions.
[2024-11-22 12:06:25,373 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 466
[2024-11-22 12:06:25,374 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 12:06:25,374 INFO  L215           NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 12:06:25,374 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-22 12:06:25,375 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 12:06:25,375 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 12:06:25,375 INFO  L85        PathProgramCache]: Analyzing trace with hash -1057600179, now seen corresponding path program 1 times
[2024-11-22 12:06:25,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 12:06:25,375 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273090788]
[2024-11-22 12:06:25,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 12:06:25,376 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 12:06:25,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 12:06:26,005 INFO  L134       CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked.
[2024-11-22 12:06:26,005 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 12:06:26,005 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273090788]
[2024-11-22 12:06:26,005 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273090788] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 12:06:26,006 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 12:06:26,006 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 12:06:26,006 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812149215]
[2024-11-22 12:06:26,006 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 12:06:26,006 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 12:06:26,006 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 12:06:26,007 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 12:06:26,007 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-22 12:06:26,007 INFO  L87              Difference]: Start difference. First operand 2383 states and 3777 transitions. Second operand  has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:26,224 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 12:06:26,225 INFO  L93              Difference]: Finished difference Result 4888 states and 7709 transitions.
[2024-11-22 12:06:26,225 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 12:06:26,225 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 465
[2024-11-22 12:06:26,226 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 12:06:26,234 INFO  L225             Difference]: With dead ends: 4888
[2024-11-22 12:06:26,234 INFO  L226             Difference]: Without dead ends: 2531
[2024-11-22 12:06:26,238 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-22 12:06:26,238 INFO  L432           NwaCegarLoop]: 555 mSDtfsCounter, 535 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 12:06:26,239 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 1298 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 12:06:26,240 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2531 states.
[2024-11-22 12:06:26,326 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 2523.
[2024-11-22 12:06:26,330 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2523 states, 2229 states have (on average 1.5343203230148048) internal successors, (3420), 2238 states have internal predecessors, (3420), 271 states have call successors, (271), 22 states have call predecessors, (271), 22 states have return successors, (271), 262 states have call predecessors, (271), 271 states have call successors, (271)
[2024-11-22 12:06:26,335 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3962 transitions.
[2024-11-22 12:06:26,336 INFO  L78                 Accepts]: Start accepts. Automaton has 2523 states and 3962 transitions. Word has length 465
[2024-11-22 12:06:26,337 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 12:06:26,337 INFO  L471      AbstractCegarLoop]: Abstraction has 2523 states and 3962 transitions.
[2024-11-22 12:06:26,337 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65)
[2024-11-22 12:06:26,337 INFO  L276                IsEmpty]: Start isEmpty. Operand 2523 states and 3962 transitions.
[2024-11-22 12:06:26,341 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 466
[2024-11-22 12:06:26,341 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 12:06:26,341 INFO  L215           NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 12:06:26,341 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-22 12:06:26,341 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 12:06:26,342 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 12:06:26,342 INFO  L85        PathProgramCache]: Analyzing trace with hash -1480302005, now seen corresponding path program 1 times
[2024-11-22 12:06:26,342 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 12:06:26,342 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402108955]
[2024-11-22 12:06:26,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 12:06:26,342 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 12:06:26,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat