./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Dubois-060.c --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/xcsp/Dubois-060.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c6c6bcdd72ea020631275d05f53f3a85eefff832aea60657c8517ea7b38d6be
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 03:08:30,591 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 03:08:30,650 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-22 03:08:30,653 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 03:08:30,655 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 03:08:30,682 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 03:08:30,684 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 03:08:30,684 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 03:08:30,684 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 03:08:30,685 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 03:08:30,686 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 03:08:30,686 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 03:08:30,687 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 03:08:30,687 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 03:08:30,687 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 03:08:30,688 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 03:08:30,688 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 03:08:30,688 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-22 03:08:30,690 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 03:08:30,691 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-22 03:08:30,691 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 03:08:30,691 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 03:08:30,691 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 03:08:30,692 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 03:08:30,692 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 03:08:30,692 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-22 03:08:30,692 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 03:08:30,692 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 03:08:30,692 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 03:08:30,692 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 03:08:30,692 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 03:08:30,693 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 03:08:30,693 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 03:08:30,693 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 03:08:30,693 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 03:08:30,693 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 03:08:30,693 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 03:08:30,693 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 03:08:30,693 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 03:08:30,694 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 03:08:30,694 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 03:08:30,696 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 03:08:30,696 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 -> 6c6c6bcdd72ea020631275d05f53f3a85eefff832aea60657c8517ea7b38d6be
[2024-11-22 03:08:30,903 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 03:08:30,924 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 03:08:30,927 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 03:08:30,928 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 03:08:30,928 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 03:08:30,929 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Dubois-060.c
[2024-11-22 03:08:32,152 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 03:08:32,364 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 03:08:32,365 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-060.c
[2024-11-22 03:08:32,383 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea754f3d2/0b08195bf3b74aadb1ec5f31f543a54f/FLAG332f174e2
[2024-11-22 03:08:32,393 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea754f3d2/0b08195bf3b74aadb1ec5f31f543a54f
[2024-11-22 03:08:32,396 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 03:08:32,397 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 03:08:32,399 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 03:08:32,399 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 03:08:32,403 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 03:08:32,404 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:08:32" (1/1) ...
[2024-11-22 03:08:32,405 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e37597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32, skipping insertion in model container
[2024-11-22 03:08:32,405 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:08:32" (1/1) ...
[2024-11-22 03:08:32,444 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 03:08:32,820 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/xcsp/Dubois-060.c[42720,42733]
[2024-11-22 03:08:32,852 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 03:08:32,863 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 03:08:33,039 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/xcsp/Dubois-060.c[42720,42733]
[2024-11-22 03:08:33,057 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 03:08:33,070 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 03:08:33,071 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33 WrapperNode
[2024-11-22 03:08:33,071 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 03:08:33,071 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 03:08:33,072 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 03:08:33,072 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 03:08:33,077 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:33,138 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:33,595 INFO  L138                Inliner]: procedures = 13, calls = 487, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11956
[2024-11-22 03:08:33,595 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 03:08:33,596 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 03:08:33,596 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 03:08:33,596 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 03:08:33,608 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:33,608 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:33,763 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:33,849 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 03:08:33,849 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:33,849 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:34,084 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:34,131 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:34,166 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:34,194 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:34,281 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 03:08:34,283 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 03:08:34,283 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 03:08:34,283 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 03:08:34,283 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (1/1) ...
[2024-11-22 03:08:34,288 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 03:08:34,296 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:08:34,308 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 03:08:34,310 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 03:08:34,342 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 03:08:34,342 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 03:08:34,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 03:08:34,342 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 03:08:34,342 INFO  L130     BoogieDeclarations]: Found specification of procedure assume
[2024-11-22 03:08:34,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume
[2024-11-22 03:08:34,604 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 03:08:34,606 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 03:08:45,047 INFO  L?                        ?]: Removed 4145 outVars from TransFormulas that were not future-live.
[2024-11-22 03:08:45,047 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 03:08:45,115 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 03:08:45,115 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-22 03:08:45,116 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:08:45 BoogieIcfgContainer
[2024-11-22 03:08:45,116 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 03:08:45,117 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 03:08:45,118 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 03:08:45,120 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 03:08:45,120 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:08:32" (1/3) ...
[2024-11-22 03:08:45,121 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75da024d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:08:45, skipping insertion in model container
[2024-11-22 03:08:45,122 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:33" (2/3) ...
[2024-11-22 03:08:45,122 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75da024d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:08:45, skipping insertion in model container
[2024-11-22 03:08:45,122 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:08:45" (3/3) ...
[2024-11-22 03:08:45,124 INFO  L112   eAbstractionObserver]: Analyzing ICFG Dubois-060.c
[2024-11-22 03:08:45,138 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 03:08:45,139 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-22 03:08:45,275 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 03:08:45,284 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;@29a59bdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 03:08:45,284 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-22 03:08:45,300 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4751 states, 4268 states have (on average 1.6190253045923149) internal successors, (6910), 4269 states have internal predecessors, (6910), 480 states have call successors, (480), 1 states have call predecessors, (480), 1 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480)
[2024-11-22 03:08:45,529 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4024
[2024-11-22 03:08:45,529 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:08:45,532 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:08:45,532 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:08:45,536 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:08:45,537 INFO  L85        PathProgramCache]: Analyzing trace with hash -1215258338, now seen corresponding path program 1 times
[2024-11-22 03:08:45,544 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:08:45,544 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839202680]
[2024-11-22 03:08:45,545 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:08:45,545 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:08:45,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:08:48,063 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 0 proven. 958 refuted. 0 times theorem prover too weak. 458882 trivial. 0 not checked.
[2024-11-22 03:08:48,064 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:08:48,064 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839202680]
[2024-11-22 03:08:48,065 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839202680] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:08:48,065 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402786198]
[2024-11-22 03:08:48,066 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:08:48,066 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:08:48,066 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:08:48,068 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 03:08:48,069 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 03:08:49,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:08:49,377 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8786 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-22 03:08:49,449 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:08:49,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 958 proven. 0 refuted. 0 times theorem prover too weak. 458882 trivial. 0 not checked.
[2024-11-22 03:08:49,653 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:08:49,654 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402786198] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:08:49,654 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:08:49,655 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-22 03:08:49,657 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636644516]
[2024-11-22 03:08:49,657 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:08:49,665 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-22 03:08:49,665 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:08:49,689 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-22 03:08:49,690 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 03:08:49,702 INFO  L87              Difference]: Start difference. First operand  has 4751 states, 4268 states have (on average 1.6190253045923149) internal successors, (6910), 4269 states have internal predecessors, (6910), 480 states have call successors, (480), 1 states have call predecessors, (480), 1 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) Second operand  has 2 states, 2 states have (on average 814.0) internal successors, (1628), 2 states have internal predecessors, (1628), 2 states have call successors, (480), 2 states have call predecessors, (480), 1 states have return successors, (480), 1 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:08:49,860 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:08:49,860 INFO  L93              Difference]: Finished difference Result 9496 states and 16214 transitions.
[2024-11-22 03:08:49,861 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-22 03:08:49,863 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 814.0) internal successors, (1628), 2 states have internal predecessors, (1628), 2 states have call successors, (480), 2 states have call predecessors, (480), 1 states have return successors, (480), 1 states have call predecessors, (480), 2 states have call successors, (480) Word has length 4023
[2024-11-22 03:08:49,863 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:08:49,896 INFO  L225             Difference]: With dead ends: 9496
[2024-11-22 03:08:49,896 INFO  L226             Difference]: Without dead ends: 4748
[2024-11-22 03:08:49,911 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4024 GetRequests, 4024 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 03:08:49,915 INFO  L432           NwaCegarLoop]: 7866 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, 7866 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 03:08:49,916 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7866 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:08:49,938 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4748 states.
[2024-11-22 03:08:50,252 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4748.
[2024-11-22 03:08:50,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4748 states, 4266 states have (on average 1.6188466947960618) internal successors, (6906), 4266 states have internal predecessors, (6906), 480 states have call successors, (480), 1 states have call predecessors, (480), 1 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480)
[2024-11-22 03:08:50,273 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4748 states to 4748 states and 7866 transitions.
[2024-11-22 03:08:50,276 INFO  L78                 Accepts]: Start accepts. Automaton has 4748 states and 7866 transitions. Word has length 4023
[2024-11-22 03:08:50,277 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:08:50,278 INFO  L471      AbstractCegarLoop]: Abstraction has 4748 states and 7866 transitions.
[2024-11-22 03:08:50,279 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 814.0) internal successors, (1628), 2 states have internal predecessors, (1628), 2 states have call successors, (480), 2 states have call predecessors, (480), 1 states have return successors, (480), 1 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:08:50,279 INFO  L276                IsEmpty]: Start isEmpty. Operand 4748 states and 7866 transitions.
[2024-11-22 03:08:50,364 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4024
[2024-11-22 03:08:50,364 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:08:50,365 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:08:50,383 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-22 03:08:50,567 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 03:08:50,567 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:08:50,568 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:08:50,569 INFO  L85        PathProgramCache]: Analyzing trace with hash 651767838, now seen corresponding path program 1 times
[2024-11-22 03:08:50,569 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:08:50,569 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169514039]
[2024-11-22 03:08:50,570 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:08:50,570 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:08:50,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:08:55,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1080 proven. 357 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:08:55,850 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:08:55,850 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169514039]
[2024-11-22 03:08:55,851 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169514039] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:08:55,851 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014251358]
[2024-11-22 03:08:55,852 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:08:55,852 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:08:55,852 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:08:55,854 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 03:08:55,855 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-22 03:08:57,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:08:57,109 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8786 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-22 03:08:57,150 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:08:57,308 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1437 proven. 0 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:08:57,309 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:08:57,309 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014251358] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:08:57,309 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:08:57,310 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8
[2024-11-22 03:08:57,310 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935146572]
[2024-11-22 03:08:57,310 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:08:57,313 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 03:08:57,313 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:08:57,316 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 03:08:57,316 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:08:57,317 INFO  L87              Difference]: Start difference. First operand 4748 states and 7866 transitions. Second operand  has 6 states, 5 states have (on average 325.8) internal successors, (1629), 6 states have internal predecessors, (1629), 2 states have call successors, (480), 1 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:08:59,221 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:08:59,222 INFO  L93              Difference]: Finished difference Result 4760 states and 7880 transitions.
[2024-11-22 03:08:59,222 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-22 03:08:59,223 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 325.8) internal successors, (1629), 6 states have internal predecessors, (1629), 2 states have call successors, (480), 1 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480) Word has length 4023
[2024-11-22 03:08:59,236 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:08:59,251 INFO  L225             Difference]: With dead ends: 4760
[2024-11-22 03:08:59,251 INFO  L226             Difference]: Without dead ends: 4750
[2024-11-22 03:08:59,253 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4028 GetRequests, 4022 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:08:59,254 INFO  L432           NwaCegarLoop]: 7382 mSDtfsCounter, 1 mSDsluCounter, 28555 mSDsCounter, 0 mSdLazyCounter, 3389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35937 SdHoareTripleChecker+Invalid, 3390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-22 03:08:59,254 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35937 Invalid, 3390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3389 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-22 03:08:59,259 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4750 states.
[2024-11-22 03:08:59,450 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 4750.
[2024-11-22 03:08:59,459 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4750 states, 4268 states have (on average 1.6185567010309279) internal successors, (6908), 4268 states have internal predecessors, (6908), 480 states have call successors, (480), 1 states have call predecessors, (480), 1 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480)
[2024-11-22 03:08:59,471 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4750 states to 4750 states and 7868 transitions.
[2024-11-22 03:08:59,474 INFO  L78                 Accepts]: Start accepts. Automaton has 4750 states and 7868 transitions. Word has length 4023
[2024-11-22 03:08:59,484 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:08:59,484 INFO  L471      AbstractCegarLoop]: Abstraction has 4750 states and 7868 transitions.
[2024-11-22 03:08:59,485 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 325.8) internal successors, (1629), 6 states have internal predecessors, (1629), 2 states have call successors, (480), 1 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:08:59,485 INFO  L276                IsEmpty]: Start isEmpty. Operand 4750 states and 7868 transitions.
[2024-11-22 03:08:59,572 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4025
[2024-11-22 03:08:59,572 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:08:59,574 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 03:08:59,592 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-22 03:08:59,774 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2024-11-22 03:08:59,775 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:08:59,775 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:08:59,777 INFO  L85        PathProgramCache]: Analyzing trace with hash -1794010116, now seen corresponding path program 1 times
[2024-11-22 03:08:59,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:08:59,777 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274235358]
[2024-11-22 03:08:59,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:08:59,777 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:08:59,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:03,418 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1080 proven. 357 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:09:03,418 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:03,419 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274235358]
[2024-11-22 03:09:03,422 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274235358] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:03,423 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338807429]
[2024-11-22 03:09:03,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:03,425 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:03,425 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:03,427 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 03:09:03,429 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-22 03:09:04,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:04,580 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8789 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:04,616 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:04,718 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1916 proven. 0 refuted. 0 times theorem prover too weak. 457924 trivial. 0 not checked.
[2024-11-22 03:09:04,718 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:04,719 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338807429] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:04,719 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:04,719 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8
[2024-11-22 03:09:04,719 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176218478]
[2024-11-22 03:09:04,720 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:04,722 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 03:09:04,722 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:04,724 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 03:09:04,724 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:09:04,725 INFO  L87              Difference]: Start difference. First operand 4750 states and 7868 transitions. Second operand  has 4 states, 4 states have (on average 407.5) internal successors, (1630), 4 states have internal predecessors, (1630), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:04,825 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:04,825 INFO  L93              Difference]: Finished difference Result 4780 states and 7910 transitions.
[2024-11-22 03:09:04,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 03:09:04,827 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 407.5) internal successors, (1630), 4 states have internal predecessors, (1630), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480) Word has length 4024
[2024-11-22 03:09:04,832 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:04,848 INFO  L225             Difference]: With dead ends: 4780
[2024-11-22 03:09:04,848 INFO  L226             Difference]: Without dead ends: 4759
[2024-11-22 03:09:04,850 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4029 GetRequests, 4023 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:09:04,852 INFO  L432           NwaCegarLoop]: 7862 mSDtfsCounter, 9 mSDsluCounter, 15711 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 23573 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 03:09:04,854 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 23573 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:04,861 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4759 states.
[2024-11-22 03:09:04,998 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4759 to 4759.
[2024-11-22 03:09:05,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4759 states, 4277 states have (on average 1.61819032031798) internal successors, (6921), 4277 states have internal predecessors, (6921), 480 states have call successors, (480), 1 states have call predecessors, (480), 1 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480)
[2024-11-22 03:09:05,014 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4759 states to 4759 states and 7881 transitions.
[2024-11-22 03:09:05,016 INFO  L78                 Accepts]: Start accepts. Automaton has 4759 states and 7881 transitions. Word has length 4024
[2024-11-22 03:09:05,024 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:05,024 INFO  L471      AbstractCegarLoop]: Abstraction has 4759 states and 7881 transitions.
[2024-11-22 03:09:05,025 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 407.5) internal successors, (1630), 4 states have internal predecessors, (1630), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:05,026 INFO  L276                IsEmpty]: Start isEmpty. Operand 4759 states and 7881 transitions.
[2024-11-22 03:09:05,121 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4025
[2024-11-22 03:09:05,121 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:05,123 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 03:09:05,139 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-22 03:09:05,323 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:05,324 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:05,324 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:05,325 INFO  L85        PathProgramCache]: Analyzing trace with hash 1071034070, now seen corresponding path program 1 times
[2024-11-22 03:09:05,325 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:05,325 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127899237]
[2024-11-22 03:09:05,326 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:05,326 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:05,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:08,347 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1080 proven. 357 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:09:08,348 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:08,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127899237]
[2024-11-22 03:09:08,348 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127899237] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:08,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065551954]
[2024-11-22 03:09:08,349 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:08,349 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:08,349 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:08,351 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 03:09:08,352 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-22 03:09:09,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:09,741 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8789 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:09,800 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:09,959 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1916 proven. 0 refuted. 0 times theorem prover too weak. 457924 trivial. 0 not checked.
[2024-11-22 03:09:09,959 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:09,959 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065551954] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:09,960 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:09,960 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-22 03:09:09,961 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299433354]
[2024-11-22 03:09:09,961 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:09,964 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 03:09:09,964 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:09,967 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 03:09:09,968 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:09,969 INFO  L87              Difference]: Start difference. First operand 4759 states and 7881 transitions. Second operand  has 3 states, 3 states have (on average 543.3333333333334) internal successors, (1630), 3 states have internal predecessors, (1630), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:10,056 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:10,057 INFO  L93              Difference]: Finished difference Result 4777 states and 7903 transitions.
[2024-11-22 03:09:10,058 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 03:09:10,059 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 543.3333333333334) internal successors, (1630), 3 states have internal predecessors, (1630), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480) Word has length 4024
[2024-11-22 03:09:10,065 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:10,080 INFO  L225             Difference]: With dead ends: 4777
[2024-11-22 03:09:10,081 INFO  L226             Difference]: Without dead ends: 4760
[2024-11-22 03:09:10,086 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4029 GetRequests, 4024 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:10,087 INFO  L432           NwaCegarLoop]: 7865 mSDtfsCounter, 0 mSDsluCounter, 7856 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15721 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 03:09:10,087 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15721 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:10,095 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4760 states.
[2024-11-22 03:09:10,288 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4760 to 4760.
[2024-11-22 03:09:10,293 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4760 states, 4278 states have (on average 1.61781206171108) internal successors, (6921), 4278 states have internal predecessors, (6921), 480 states have call successors, (480), 1 states have call predecessors, (480), 1 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480)
[2024-11-22 03:09:10,302 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4760 states to 4760 states and 7881 transitions.
[2024-11-22 03:09:10,304 INFO  L78                 Accepts]: Start accepts. Automaton has 4760 states and 7881 transitions. Word has length 4024
[2024-11-22 03:09:10,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:10,307 INFO  L471      AbstractCegarLoop]: Abstraction has 4760 states and 7881 transitions.
[2024-11-22 03:09:10,308 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 543.3333333333334) internal successors, (1630), 3 states have internal predecessors, (1630), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:10,308 INFO  L276                IsEmpty]: Start isEmpty. Operand 4760 states and 7881 transitions.
[2024-11-22 03:09:10,370 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4026
[2024-11-22 03:09:10,371 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:10,372 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 03:09:10,388 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-22 03:09:10,572 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:10,573 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:10,573 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:10,575 INFO  L85        PathProgramCache]: Analyzing trace with hash 1493006212, now seen corresponding path program 1 times
[2024-11-22 03:09:10,575 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:10,575 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093514149]
[2024-11-22 03:09:10,575 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:10,575 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:10,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:13,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1080 proven. 357 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:09:13,202 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:13,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093514149]
[2024-11-22 03:09:13,202 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093514149] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:13,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10843297]
[2024-11-22 03:09:13,203 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:13,203 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:13,203 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:13,207 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 03:09:13,208 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-22 03:09:14,261 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:14,290 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8792 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:14,329 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:14,421 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1916 proven. 0 refuted. 0 times theorem prover too weak. 457924 trivial. 0 not checked.
[2024-11-22 03:09:14,421 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:14,421 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [10843297] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:14,422 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:14,423 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8
[2024-11-22 03:09:14,423 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211442595]
[2024-11-22 03:09:14,423 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:14,427 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 03:09:14,427 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:14,429 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 03:09:14,429 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:09:14,429 INFO  L87              Difference]: Start difference. First operand 4760 states and 7881 transitions. Second operand  has 4 states, 4 states have (on average 407.75) internal successors, (1631), 4 states have internal predecessors, (1631), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:14,526 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:14,526 INFO  L93              Difference]: Finished difference Result 4809 states and 7952 transitions.
[2024-11-22 03:09:14,526 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 03:09:14,527 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 407.75) internal successors, (1631), 4 states have internal predecessors, (1631), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480) Word has length 4025
[2024-11-22 03:09:14,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:14,562 INFO  L225             Difference]: With dead ends: 4809
[2024-11-22 03:09:14,562 INFO  L226             Difference]: Without dead ends: 4770
[2024-11-22 03:09:14,566 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4030 GetRequests, 4024 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:09:14,566 INFO  L432           NwaCegarLoop]: 7862 mSDtfsCounter, 9 mSDsluCounter, 15711 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 23573 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 03:09:14,567 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 23573 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:14,578 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4770 states.
[2024-11-22 03:09:14,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4770 to 4770.
[2024-11-22 03:09:14,807 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4770 states, 4288 states have (on average 1.617537313432836) internal successors, (6936), 4288 states have internal predecessors, (6936), 480 states have call successors, (480), 1 states have call predecessors, (480), 1 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480)
[2024-11-22 03:09:14,817 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4770 states to 4770 states and 7896 transitions.
[2024-11-22 03:09:14,818 INFO  L78                 Accepts]: Start accepts. Automaton has 4770 states and 7896 transitions. Word has length 4025
[2024-11-22 03:09:14,822 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:14,822 INFO  L471      AbstractCegarLoop]: Abstraction has 4770 states and 7896 transitions.
[2024-11-22 03:09:14,823 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 407.75) internal successors, (1631), 4 states have internal predecessors, (1631), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:14,823 INFO  L276                IsEmpty]: Start isEmpty. Operand 4770 states and 7896 transitions.
[2024-11-22 03:09:14,890 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4026
[2024-11-22 03:09:14,890 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:14,891 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 03:09:14,911 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-22 03:09:15,092 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:15,093 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:15,094 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:15,095 INFO  L85        PathProgramCache]: Analyzing trace with hash 1416811384, now seen corresponding path program 1 times
[2024-11-22 03:09:15,095 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:15,095 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155104170]
[2024-11-22 03:09:15,096 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:15,096 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:15,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:17,877 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1080 proven. 357 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:09:17,878 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:17,878 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155104170]
[2024-11-22 03:09:17,878 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155104170] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:17,878 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358348863]
[2024-11-22 03:09:17,879 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:17,879 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:17,879 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:17,881 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 03:09:17,882 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-22 03:09:18,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:18,956 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8792 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:19,070 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:22,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1916 proven. 0 refuted. 0 times theorem prover too weak. 457924 trivial. 0 not checked.
[2024-11-22 03:09:22,002 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:22,002 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [358348863] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:22,002 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:22,002 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-22 03:09:22,003 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827092430]
[2024-11-22 03:09:22,003 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:22,005 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 03:09:22,005 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:22,008 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 03:09:22,008 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:22,009 INFO  L87              Difference]: Start difference. First operand 4770 states and 7896 transitions. Second operand  has 3 states, 3 states have (on average 543.6666666666666) internal successors, (1631), 3 states have internal predecessors, (1631), 3 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 3 states have call predecessors, (480), 3 states have call successors, (480)
[2024-11-22 03:09:22,167 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:22,168 INFO  L93              Difference]: Finished difference Result 13159 states and 21785 transitions.
[2024-11-22 03:09:22,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 03:09:22,169 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 543.6666666666666) internal successors, (1631), 3 states have internal predecessors, (1631), 3 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 3 states have call predecessors, (480), 3 states have call successors, (480) Word has length 4025
[2024-11-22 03:09:22,172 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:22,193 INFO  L225             Difference]: With dead ends: 13159
[2024-11-22 03:09:22,193 INFO  L226             Difference]: Without dead ends: 8954
[2024-11-22 03:09:22,203 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4030 GetRequests, 4025 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:22,205 INFO  L432           NwaCegarLoop]: 11170 mSDtfsCounter, 5269 mSDsluCounter, 7880 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5269 SdHoareTripleChecker+Valid, 19050 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 03:09:22,205 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [5269 Valid, 19050 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:22,216 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8954 states.
[2024-11-22 03:09:22,445 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8954 to 8954.
[2024-11-22 03:09:22,454 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8954 states, 8353 states have (on average 1.631629354722854) internal successors, (13629), 8353 states have internal predecessors, (13629), 599 states have call successors, (599), 1 states have call predecessors, (599), 1 states have return successors, (599), 599 states have call predecessors, (599), 599 states have call successors, (599)
[2024-11-22 03:09:22,469 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8954 states to 8954 states and 14827 transitions.
[2024-11-22 03:09:22,471 INFO  L78                 Accepts]: Start accepts. Automaton has 8954 states and 14827 transitions. Word has length 4025
[2024-11-22 03:09:22,473 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:22,473 INFO  L471      AbstractCegarLoop]: Abstraction has 8954 states and 14827 transitions.
[2024-11-22 03:09:22,474 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 543.6666666666666) internal successors, (1631), 3 states have internal predecessors, (1631), 3 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 3 states have call predecessors, (480), 3 states have call successors, (480)
[2024-11-22 03:09:22,474 INFO  L276                IsEmpty]: Start isEmpty. Operand 8954 states and 14827 transitions.
[2024-11-22 03:09:22,542 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4026
[2024-11-22 03:09:22,542 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:22,543 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 03:09:22,566 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-22 03:09:22,744 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:22,748 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:22,748 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:22,749 INFO  L85        PathProgramCache]: Analyzing trace with hash -1817864866, now seen corresponding path program 1 times
[2024-11-22 03:09:22,749 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:22,749 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224727209]
[2024-11-22 03:09:22,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:22,750 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:22,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:25,723 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1080 proven. 357 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:09:25,724 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:25,724 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224727209]
[2024-11-22 03:09:25,724 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224727209] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:25,724 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855688367]
[2024-11-22 03:09:25,724 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:25,725 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:25,725 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:25,730 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 03:09:25,733 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-22 03:09:26,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:26,820 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8792 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:27,045 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:27,173 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1916 proven. 0 refuted. 0 times theorem prover too weak. 457924 trivial. 0 not checked.
[2024-11-22 03:09:27,174 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:27,174 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [855688367] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:27,174 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:27,175 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-22 03:09:27,175 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386062438]
[2024-11-22 03:09:27,175 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:27,179 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 03:09:27,181 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:27,184 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 03:09:27,185 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:27,186 INFO  L87              Difference]: Start difference. First operand 8954 states and 14827 transitions. Second operand  has 3 states, 3 states have (on average 543.6666666666666) internal successors, (1631), 3 states have internal predecessors, (1631), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:27,282 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:27,282 INFO  L93              Difference]: Finished difference Result 8985 states and 14868 transitions.
[2024-11-22 03:09:27,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 03:09:27,283 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 543.6666666666666) internal successors, (1631), 3 states have internal predecessors, (1631), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480) Word has length 4025
[2024-11-22 03:09:27,288 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:27,303 INFO  L225             Difference]: With dead ends: 8985
[2024-11-22 03:09:27,304 INFO  L226             Difference]: Without dead ends: 8947
[2024-11-22 03:09:27,307 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4030 GetRequests, 4025 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:27,308 INFO  L432           NwaCegarLoop]: 7865 mSDtfsCounter, 0 mSDsluCounter, 7856 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15721 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 03:09:27,309 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15721 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:27,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8947 states.
[2024-11-22 03:09:27,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8947 to 8947.
[2024-11-22 03:09:27,614 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8947 states, 8346 states have (on average 1.631320393002636) internal successors, (13615), 8346 states have internal predecessors, (13615), 599 states have call successors, (599), 1 states have call predecessors, (599), 1 states have return successors, (599), 599 states have call predecessors, (599), 599 states have call successors, (599)
[2024-11-22 03:09:27,632 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 14813 transitions.
[2024-11-22 03:09:27,635 INFO  L78                 Accepts]: Start accepts. Automaton has 8947 states and 14813 transitions. Word has length 4025
[2024-11-22 03:09:27,638 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:27,638 INFO  L471      AbstractCegarLoop]: Abstraction has 8947 states and 14813 transitions.
[2024-11-22 03:09:27,639 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 543.6666666666666) internal successors, (1631), 3 states have internal predecessors, (1631), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:27,639 INFO  L276                IsEmpty]: Start isEmpty. Operand 8947 states and 14813 transitions.
[2024-11-22 03:09:27,828 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4027
[2024-11-22 03:09:27,829 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:27,830 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 03:09:27,847 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-22 03:09:28,030 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:28,031 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:28,031 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:28,032 INFO  L85        PathProgramCache]: Analyzing trace with hash -1690489220, now seen corresponding path program 1 times
[2024-11-22 03:09:28,032 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:28,032 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865540532]
[2024-11-22 03:09:28,033 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:28,033 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:28,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:30,839 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1080 proven. 357 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:09:30,839 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:30,839 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865540532]
[2024-11-22 03:09:30,839 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865540532] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:30,839 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395209007]
[2024-11-22 03:09:30,840 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:30,840 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:30,840 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:30,841 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 03:09:30,842 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-22 03:09:31,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:32,036 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8795 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:32,069 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:32,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1916 proven. 0 refuted. 0 times theorem prover too weak. 457924 trivial. 0 not checked.
[2024-11-22 03:09:32,146 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:32,146 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [395209007] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:32,146 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:32,147 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-22 03:09:32,149 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362048216]
[2024-11-22 03:09:32,149 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:32,151 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 03:09:32,151 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:32,153 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 03:09:32,153 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:32,154 INFO  L87              Difference]: Start difference. First operand 8947 states and 14813 transitions. Second operand  has 3 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:32,308 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:32,308 INFO  L93              Difference]: Finished difference Result 8997 states and 14882 transitions.
[2024-11-22 03:09:32,309 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 03:09:32,309 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480) Word has length 4026
[2024-11-22 03:09:32,312 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:32,327 INFO  L225             Difference]: With dead ends: 8997
[2024-11-22 03:09:32,328 INFO  L226             Difference]: Without dead ends: 8943
[2024-11-22 03:09:32,330 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4031 GetRequests, 4026 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:32,330 INFO  L432           NwaCegarLoop]: 7865 mSDtfsCounter, 0 mSDsluCounter, 7856 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15721 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 03:09:32,331 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15721 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:32,338 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8943 states.
[2024-11-22 03:09:32,522 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8943 to 8943.
[2024-11-22 03:09:32,532 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8943 states, 8342 states have (on average 1.6311436106449293) internal successors, (13607), 8342 states have internal predecessors, (13607), 599 states have call successors, (599), 1 states have call predecessors, (599), 1 states have return successors, (599), 599 states have call predecessors, (599), 599 states have call successors, (599)
[2024-11-22 03:09:32,545 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8943 states to 8943 states and 14805 transitions.
[2024-11-22 03:09:32,548 INFO  L78                 Accepts]: Start accepts. Automaton has 8943 states and 14805 transitions. Word has length 4026
[2024-11-22 03:09:32,550 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:32,550 INFO  L471      AbstractCegarLoop]: Abstraction has 8943 states and 14805 transitions.
[2024-11-22 03:09:32,551 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:32,551 INFO  L276                IsEmpty]: Start isEmpty. Operand 8943 states and 14805 transitions.
[2024-11-22 03:09:32,616 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4027
[2024-11-22 03:09:32,616 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:32,617 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 03:09:32,635 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-22 03:09:32,818 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-11-22 03:09:32,821 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:32,822 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:32,822 INFO  L85        PathProgramCache]: Analyzing trace with hash -1733701738, now seen corresponding path program 1 times
[2024-11-22 03:09:32,823 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:32,823 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370105441]
[2024-11-22 03:09:32,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:32,823 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:33,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:36,005 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1080 proven. 357 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:09:36,005 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:36,005 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370105441]
[2024-11-22 03:09:36,005 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370105441] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:36,006 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232623546]
[2024-11-22 03:09:36,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:36,006 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:36,007 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:36,008 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 03:09:36,010 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-22 03:09:37,044 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:37,075 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8795 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:37,106 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:40,049 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1916 proven. 0 refuted. 0 times theorem prover too weak. 457924 trivial. 0 not checked.
[2024-11-22 03:09:40,049 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:40,049 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232623546] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:40,050 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:40,050 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-22 03:09:40,050 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528633263]
[2024-11-22 03:09:40,050 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:40,053 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 03:09:40,053 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:40,054 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 03:09:40,055 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:40,055 INFO  L87              Difference]: Start difference. First operand 8943 states and 14805 transitions. Second operand  has 3 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 3 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 3 states have call predecessors, (480), 3 states have call successors, (480)
[2024-11-22 03:09:40,200 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:40,200 INFO  L93              Difference]: Finished difference Result 17307 states and 28645 transitions.
[2024-11-22 03:09:40,200 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 03:09:40,201 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 3 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 3 states have call predecessors, (480), 3 states have call successors, (480) Word has length 4026
[2024-11-22 03:09:40,205 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:40,229 INFO  L225             Difference]: With dead ends: 17307
[2024-11-22 03:09:40,230 INFO  L226             Difference]: Without dead ends: 13110
[2024-11-22 03:09:40,241 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4031 GetRequests, 4026 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:40,243 INFO  L432           NwaCegarLoop]: 10120 mSDtfsCounter, 5269 mSDsluCounter, 7856 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5269 SdHoareTripleChecker+Valid, 17976 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 03:09:40,243 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [5269 Valid, 17976 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:40,255 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13110 states.
[2024-11-22 03:09:40,568 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13110 to 13097.
[2024-11-22 03:09:40,583 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13097 states, 12377 states have (on average 1.635856831219197) internal successors, (20247), 12377 states have internal predecessors, (20247), 718 states have call successors, (718), 1 states have call predecessors, (718), 1 states have return successors, (718), 718 states have call predecessors, (718), 718 states have call successors, (718)
[2024-11-22 03:09:40,603 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13097 states to 13097 states and 21683 transitions.
[2024-11-22 03:09:40,606 INFO  L78                 Accepts]: Start accepts. Automaton has 13097 states and 21683 transitions. Word has length 4026
[2024-11-22 03:09:40,607 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:40,608 INFO  L471      AbstractCegarLoop]: Abstraction has 13097 states and 21683 transitions.
[2024-11-22 03:09:40,608 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 3 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 3 states have call predecessors, (480), 3 states have call successors, (480)
[2024-11-22 03:09:40,608 INFO  L276                IsEmpty]: Start isEmpty. Operand 13097 states and 21683 transitions.
[2024-11-22 03:09:40,680 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4027
[2024-11-22 03:09:40,681 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:40,682 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 03:09:40,700 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-11-22 03:09:40,883 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:40,883 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:40,884 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:40,884 INFO  L85        PathProgramCache]: Analyzing trace with hash 1340837282, now seen corresponding path program 1 times
[2024-11-22 03:09:40,885 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:40,885 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752025746]
[2024-11-22 03:09:40,885 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:40,885 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:41,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:43,660 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1080 proven. 357 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:09:43,660 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:43,660 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752025746]
[2024-11-22 03:09:43,660 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752025746] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:43,660 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087260319]
[2024-11-22 03:09:43,661 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:43,661 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:43,661 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:43,666 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 03:09:43,667 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-22 03:09:44,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:44,768 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8795 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:44,796 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:44,869 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1916 proven. 0 refuted. 0 times theorem prover too weak. 457924 trivial. 0 not checked.
[2024-11-22 03:09:44,869 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:44,870 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087260319] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:44,870 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:44,870 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-22 03:09:44,871 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757458356]
[2024-11-22 03:09:44,871 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:44,873 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 03:09:44,873 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:44,875 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 03:09:44,875 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:44,875 INFO  L87              Difference]: Start difference. First operand 13097 states and 21683 transitions. Second operand  has 3 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:44,952 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:44,953 INFO  L93              Difference]: Finished difference Result 13162 states and 21772 transitions.
[2024-11-22 03:09:44,953 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 03:09:44,954 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480) Word has length 4026
[2024-11-22 03:09:44,956 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:44,979 INFO  L225             Difference]: With dead ends: 13162
[2024-11-22 03:09:44,979 INFO  L226             Difference]: Without dead ends: 13110
[2024-11-22 03:09:44,984 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4031 GetRequests, 4026 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:44,984 INFO  L432           NwaCegarLoop]: 7865 mSDtfsCounter, 8 mSDsluCounter, 7857 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15722 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 03:09:44,985 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15722 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:44,993 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13110 states.
[2024-11-22 03:09:45,305 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13110 to 13110.
[2024-11-22 03:09:45,315 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13110 states, 12390 states have (on average 1.6355125100887813) internal successors, (20264), 12390 states have internal predecessors, (20264), 718 states have call successors, (718), 1 states have call predecessors, (718), 1 states have return successors, (718), 718 states have call predecessors, (718), 718 states have call successors, (718)
[2024-11-22 03:09:45,332 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13110 states to 13110 states and 21700 transitions.
[2024-11-22 03:09:45,334 INFO  L78                 Accepts]: Start accepts. Automaton has 13110 states and 21700 transitions. Word has length 4026
[2024-11-22 03:09:45,336 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:45,336 INFO  L471      AbstractCegarLoop]: Abstraction has 13110 states and 21700 transitions.
[2024-11-22 03:09:45,337 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 2 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 2 states have call predecessors, (480), 2 states have call successors, (480)
[2024-11-22 03:09:45,337 INFO  L276                IsEmpty]: Start isEmpty. Operand 13110 states and 21700 transitions.
[2024-11-22 03:09:45,405 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4027
[2024-11-22 03:09:45,405 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:45,406 INFO  L215           NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 03:09:45,424 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-22 03:09:45,607 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-22 03:09:45,608 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:45,608 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:45,609 INFO  L85        PathProgramCache]: Analyzing trace with hash -1965089924, now seen corresponding path program 1 times
[2024-11-22 03:09:45,609 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:45,609 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729051902]
[2024-11-22 03:09:45,610 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:45,610 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:45,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:48,554 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 1080 proven. 357 refuted. 0 times theorem prover too weak. 458403 trivial. 0 not checked.
[2024-11-22 03:09:48,555 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:48,555 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729051902]
[2024-11-22 03:09:48,555 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729051902] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:48,555 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675574669]
[2024-11-22 03:09:48,556 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:48,556 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:48,556 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:48,558 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 03:09:48,559 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-22 03:09:49,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:49,652 INFO  L255         TraceCheckSpWp]: Trace formula consists of 8795 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:49,690 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:49,771 INFO  L134       CoverageAnalysis]: Checked inductivity of 459840 backedges. 3350 proven. 0 refuted. 0 times theorem prover too weak. 456490 trivial. 0 not checked.
[2024-11-22 03:09:49,771 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:49,771 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [675574669] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:49,771 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:49,772 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8
[2024-11-22 03:09:49,772 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085660723]
[2024-11-22 03:09:49,772 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:49,775 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 03:09:49,775 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:49,776 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 03:09:49,777 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:09:49,777 INFO  L87              Difference]: Start difference. First operand 13110 states and 21700 transitions. Second operand  has 6 states, 5 states have (on average 327.0) internal successors, (1635), 6 states have internal predecessors, (1635), 3 states have call successors, (480), 2 states have call predecessors, (480), 3 states have return successors, (480), 2 states have call predecessors, (480), 3 states have call successors, (480)