./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Dubois-065.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-065.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 c9789ed3fb7c723a015b476139983e23c0e32cb4759acdfba93a51a8c26be62c
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 03:08:35,718 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 03:08:35,798 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-22 03:08:35,804 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 03:08:35,805 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 03:08:35,833 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 03:08:35,834 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 03:08:35,834 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 03:08:35,835 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 03:08:35,837 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 03:08:35,837 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 03:08:35,837 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 03:08:35,838 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 03:08:35,838 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 03:08:35,839 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 03:08:35,839 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 03:08:35,839 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 03:08:35,840 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-22 03:08:35,840 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 03:08:35,842 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-22 03:08:35,846 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 03:08:35,848 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 03:08:35,848 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 03:08:35,848 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 03:08:35,848 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 03:08:35,849 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-22 03:08:35,849 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 03:08:35,849 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 03:08:35,849 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 03:08:35,849 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 03:08:35,850 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 03:08:35,850 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 03:08:35,850 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 03:08:35,850 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 03:08:35,850 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 03:08:35,851 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 03:08:35,851 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 03:08:35,851 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 03:08:35,853 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 03:08:35,853 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 03:08:35,853 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 03:08:35,857 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 03:08:35,857 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 -> c9789ed3fb7c723a015b476139983e23c0e32cb4759acdfba93a51a8c26be62c
[2024-11-22 03:08:36,126 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 03:08:36,151 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 03:08:36,153 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 03:08:36,155 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 03:08:36,155 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 03:08:36,156 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Dubois-065.c
[2024-11-22 03:08:37,815 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 03:08:38,156 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 03:08:38,157 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-065.c
[2024-11-22 03:08:38,169 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e4a40637/467577ed48864409a65ce79866267d94/FLAGa472e07ca
[2024-11-22 03:08:38,181 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e4a40637/467577ed48864409a65ce79866267d94
[2024-11-22 03:08:38,183 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 03:08:38,184 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 03:08:38,188 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 03:08:38,189 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 03:08:38,194 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 03:08:38,195 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:38,196 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79975bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38, skipping insertion in model container
[2024-11-22 03:08:38,196 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:38,250 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 03:08:38,725 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-065.c[46320,46333]
[2024-11-22 03:08:38,783 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 03:08:38,794 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 03:08:38,963 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-065.c[46320,46333]
[2024-11-22 03:08:38,979 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 03:08:38,992 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 03:08:38,992 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38 WrapperNode
[2024-11-22 03:08:38,992 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 03:08:38,993 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 03:08:38,993 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 03:08:38,993 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 03:08:38,999 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:39,144 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:39,916 INFO  L138                Inliner]: procedures = 13, calls = 527, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12951
[2024-11-22 03:08:39,920 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 03:08:39,921 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 03:08:39,921 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 03:08:39,921 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 03:08:39,938 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:39,939 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:40,236 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:40,437 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 03:08:40,442 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:40,442 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:40,746 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:40,793 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:40,836 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:40,869 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:41,013 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 03:08:41,014 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 03:08:41,015 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 03:08:41,015 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 03:08:41,016 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (1/1) ...
[2024-11-22 03:08:41,022 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 03:08:41,137 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:08:41,162 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 03:08:41,164 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 03:08:41,196 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 03:08:41,197 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 03:08:41,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 03:08:41,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 03:08:41,197 INFO  L130     BoogieDeclarations]: Found specification of procedure assume
[2024-11-22 03:08:41,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume
[2024-11-22 03:08:41,477 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 03:08:41,479 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 03:08:55,660 INFO  L?                        ?]: Removed 4490 outVars from TransFormulas that were not future-live.
[2024-11-22 03:08:55,660 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 03:08:55,736 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 03:08:55,736 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-22 03:08:55,737 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:08:55 BoogieIcfgContainer
[2024-11-22 03:08:55,737 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 03:08:55,739 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 03:08:55,740 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 03:08:55,742 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 03:08:55,743 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:08:38" (1/3) ...
[2024-11-22 03:08:55,743 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256e7eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:08:55, skipping insertion in model container
[2024-11-22 03:08:55,744 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:38" (2/3) ...
[2024-11-22 03:08:55,744 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256e7eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:08:55, skipping insertion in model container
[2024-11-22 03:08:55,744 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:08:55" (3/3) ...
[2024-11-22 03:08:55,745 INFO  L112   eAbstractionObserver]: Analyzing ICFG Dubois-065.c
[2024-11-22 03:08:55,758 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 03:08:55,759 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-22 03:08:55,923 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 03:08:55,932 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;@4663a55c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 03:08:55,932 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-22 03:08:55,948 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5146 states, 4623 states have (on average 1.6190785204412719) internal successors, (7485), 4624 states have internal predecessors, (7485), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-22 03:08:56,185 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4359
[2024-11-22 03:08:56,186 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:08:56,189 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-11-22 03:08:56,189 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:08:56,193 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:08:56,194 INFO  L85        PathProgramCache]: Analyzing trace with hash 650817423, now seen corresponding path program 1 times
[2024-11-22 03:08:56,201 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:08:56,201 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413996699]
[2024-11-22 03:08:56,202 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:08:56,203 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:08:56,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:08:59,606 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 0 proven. 1038 refuted. 0 times theorem prover too weak. 538722 trivial. 0 not checked.
[2024-11-22 03:08:59,607 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:08:59,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413996699]
[2024-11-22 03:08:59,611 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413996699] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:08:59,611 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713254906]
[2024-11-22 03:08:59,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:08:59,612 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:08:59,612 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:08:59,616 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 03:08:59,617 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 03:09:01,104 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:01,145 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9516 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:01,302 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:01,637 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1038 proven. 0 refuted. 0 times theorem prover too weak. 538722 trivial. 0 not checked.
[2024-11-22 03:09:01,637 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:01,638 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713254906] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:01,638 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:01,639 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-22 03:09:01,642 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313382519]
[2024-11-22 03:09:01,642 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:01,653 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-22 03:09:01,653 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:01,679 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-22 03:09:01,680 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 03:09:01,707 INFO  L87              Difference]: Start difference. First operand  has 5146 states, 4623 states have (on average 1.6190785204412719) internal successors, (7485), 4624 states have internal predecessors, (7485), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520) Second operand  has 2 states, 2 states have (on average 881.5) internal successors, (1763), 2 states have internal predecessors, (1763), 2 states have call successors, (520), 2 states have call predecessors, (520), 1 states have return successors, (520), 1 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:01,956 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:01,957 INFO  L93              Difference]: Finished difference Result 10286 states and 17564 transitions.
[2024-11-22 03:09:01,958 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-22 03:09:01,960 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 881.5) internal successors, (1763), 2 states have internal predecessors, (1763), 2 states have call successors, (520), 2 states have call predecessors, (520), 1 states have return successors, (520), 1 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4358
[2024-11-22 03:09:01,961 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:01,990 INFO  L225             Difference]: With dead ends: 10286
[2024-11-22 03:09:01,990 INFO  L226             Difference]: Without dead ends: 5143
[2024-11-22 03:09:02,011 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4359 GetRequests, 4359 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 03:09:02,014 INFO  L432           NwaCegarLoop]: 8521 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, 8521 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 03:09:02,015 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8521 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:02,038 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5143 states.
[2024-11-22 03:09:02,451 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5143 to 5143.
[2024-11-22 03:09:02,460 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5143 states, 4621 states have (on average 1.6189136550530188) internal successors, (7481), 4621 states have internal predecessors, (7481), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-22 03:09:02,487 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 8521 transitions.
[2024-11-22 03:09:02,494 INFO  L78                 Accepts]: Start accepts. Automaton has 5143 states and 8521 transitions. Word has length 4358
[2024-11-22 03:09:02,495 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:02,495 INFO  L471      AbstractCegarLoop]: Abstraction has 5143 states and 8521 transitions.
[2024-11-22 03:09:02,497 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 881.5) internal successors, (1763), 2 states have internal predecessors, (1763), 2 states have call successors, (520), 2 states have call predecessors, (520), 1 states have return successors, (520), 1 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:02,497 INFO  L276                IsEmpty]: Start isEmpty. Operand 5143 states and 8521 transitions.
[2024-11-22 03:09:03,094 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4359
[2024-11-22 03:09:03,095 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:03,096 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:03,117 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 03:09:03,297 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 03:09:03,298 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:03,299 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:03,300 INFO  L85        PathProgramCache]: Analyzing trace with hash -469668593, now seen corresponding path program 1 times
[2024-11-22 03:09:03,300 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:03,301 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680155211]
[2024-11-22 03:09:03,301 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:03,301 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:03,605 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:09,237 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-22 03:09:09,244 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:09,245 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680155211]
[2024-11-22 03:09:09,245 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680155211] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:09,245 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501817753]
[2024-11-22 03:09:09,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:09,246 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:09,246 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:09,250 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 03:09:09,252 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 03:09:11,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:11,108 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9516 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:11,322 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:11,499 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 197601 proven. 0 refuted. 0 times theorem prover too weak. 342159 trivial. 0 not checked.
[2024-11-22 03:09:11,499 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:11,500 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [501817753] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:11,500 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:11,501 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8
[2024-11-22 03:09:11,501 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552231064]
[2024-11-22 03:09:11,502 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:11,507 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 03:09:11,508 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:11,511 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 03:09:11,511 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:09:11,516 INFO  L87              Difference]: Start difference. First operand 5143 states and 8521 transitions. Second operand  has 6 states, 5 states have (on average 353.4) internal successors, (1767), 6 states have internal predecessors, (1767), 3 states have call successors, (520), 2 states have call predecessors, (520), 3 states have return successors, (520), 2 states have call predecessors, (520), 3 states have call successors, (520)
[2024-11-22 03:09:14,197 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:14,198 INFO  L93              Difference]: Finished difference Result 9495 states and 15727 transitions.
[2024-11-22 03:09:14,198 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-22 03:09:14,199 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 353.4) internal successors, (1767), 6 states have internal predecessors, (1767), 3 states have call successors, (520), 2 states have call predecessors, (520), 3 states have return successors, (520), 2 states have call predecessors, (520), 3 states have call successors, (520) Word has length 4358
[2024-11-22 03:09:14,208 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:14,230 INFO  L225             Difference]: With dead ends: 9495
[2024-11-22 03:09:14,230 INFO  L226             Difference]: Without dead ends: 5145
[2024-11-22 03:09:14,237 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4363 GetRequests, 4357 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 03:09:14,238 INFO  L432           NwaCegarLoop]: 7997 mSDtfsCounter, 1 mSDsluCounter, 30935 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38932 SdHoareTripleChecker+Invalid, 3670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-22 03:09:14,239 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38932 Invalid, 3670 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-22 03:09:14,247 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5145 states.
[2024-11-22 03:09:14,421 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5145 to 5145.
[2024-11-22 03:09:14,428 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5145 states, 4623 states have (on average 1.618645900930132) internal successors, (7483), 4623 states have internal predecessors, (7483), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-22 03:09:14,439 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 8523 transitions.
[2024-11-22 03:09:14,442 INFO  L78                 Accepts]: Start accepts. Automaton has 5145 states and 8523 transitions. Word has length 4358
[2024-11-22 03:09:14,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:14,452 INFO  L471      AbstractCegarLoop]: Abstraction has 5145 states and 8523 transitions.
[2024-11-22 03:09:14,453 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 353.4) internal successors, (1767), 6 states have internal predecessors, (1767), 3 states have call successors, (520), 2 states have call predecessors, (520), 3 states have return successors, (520), 2 states have call predecessors, (520), 3 states have call successors, (520)
[2024-11-22 03:09:14,453 INFO  L276                IsEmpty]: Start isEmpty. Operand 5145 states and 8523 transitions.
[2024-11-22 03:09:14,600 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4360
[2024-11-22 03:09:14,600 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:14,602 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:14,623 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-22 03:09:14,807 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 03:09:14,808 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:14,808 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:14,810 INFO  L85        PathProgramCache]: Analyzing trace with hash -1906132276, now seen corresponding path program 1 times
[2024-11-22 03:09:14,810 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:14,810 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746906205]
[2024-11-22 03:09:14,814 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:14,815 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:15,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:19,878 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-22 03:09:19,879 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:19,879 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746906205]
[2024-11-22 03:09:19,879 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746906205] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:19,880 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631130804]
[2024-11-22 03:09:19,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:19,881 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:19,881 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:19,883 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 03:09:19,883 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 03:09:21,408 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:21,443 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9519 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:21,511 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:21,609 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 197500 proven. 0 refuted. 0 times theorem prover too weak. 342260 trivial. 0 not checked.
[2024-11-22 03:09:21,609 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:21,610 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [631130804] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:21,610 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:21,610 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8
[2024-11-22 03:09:21,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356224014]
[2024-11-22 03:09:21,611 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:21,735 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 03:09:21,735 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:21,738 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 03:09:21,738 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:09:21,738 INFO  L87              Difference]: Start difference. First operand 5145 states and 8523 transitions. Second operand  has 4 states, 4 states have (on average 441.25) internal successors, (1765), 4 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:21,855 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:21,856 INFO  L93              Difference]: Finished difference Result 9515 states and 15757 transitions.
[2024-11-22 03:09:21,856 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 03:09:21,857 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 441.25) internal successors, (1765), 4 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4359
[2024-11-22 03:09:21,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:21,876 INFO  L225             Difference]: With dead ends: 9515
[2024-11-22 03:09:21,876 INFO  L226             Difference]: Without dead ends: 5154
[2024-11-22 03:09:21,883 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4364 GetRequests, 4358 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 03:09:21,884 INFO  L432           NwaCegarLoop]: 8517 mSDtfsCounter, 9 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25538 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 03:09:21,885 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25538 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:21,894 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5154 states.
[2024-11-22 03:09:22,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5154 to 5154.
[2024-11-22 03:09:22,065 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5154 states, 4632 states have (on average 1.618307426597582) internal successors, (7496), 4632 states have internal predecessors, (7496), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-22 03:09:22,075 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 8536 transitions.
[2024-11-22 03:09:22,077 INFO  L78                 Accepts]: Start accepts. Automaton has 5154 states and 8536 transitions. Word has length 4359
[2024-11-22 03:09:22,082 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:22,082 INFO  L471      AbstractCegarLoop]: Abstraction has 5154 states and 8536 transitions.
[2024-11-22 03:09:22,083 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 441.25) internal successors, (1765), 4 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:22,083 INFO  L276                IsEmpty]: Start isEmpty. Operand 5154 states and 8536 transitions.
[2024-11-22 03:09:22,158 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4360
[2024-11-22 03:09:22,158 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:22,160 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:22,177 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-22 03:09:22,360 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 03:09:22,362 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:22,362 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:22,364 INFO  L85        PathProgramCache]: Analyzing trace with hash 2024112806, now seen corresponding path program 1 times
[2024-11-22 03:09:22,364 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:22,364 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340600255]
[2024-11-22 03:09:22,364 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:22,364 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:22,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:28,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-22 03:09:28,196 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:28,196 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340600255]
[2024-11-22 03:09:28,196 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340600255] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:28,196 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248125454]
[2024-11-22 03:09:28,197 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:28,197 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:28,197 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:28,199 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 03:09:28,201 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 03:09:29,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:29,805 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9519 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:29,872 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:30,030 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 197500 proven. 0 refuted. 0 times theorem prover too weak. 342260 trivial. 0 not checked.
[2024-11-22 03:09:30,031 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:30,031 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248125454] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:30,031 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:30,032 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-22 03:09:30,033 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729966843]
[2024-11-22 03:09:30,033 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:30,040 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 03:09:30,041 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:30,045 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 03:09:30,046 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:30,047 INFO  L87              Difference]: Start difference. First operand 5154 states and 8536 transitions. Second operand  has 3 states, 3 states have (on average 588.3333333333334) internal successors, (1765), 3 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:30,173 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:30,173 INFO  L93              Difference]: Finished difference Result 9512 states and 15750 transitions.
[2024-11-22 03:09:30,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 03:09:30,175 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 588.3333333333334) internal successors, (1765), 3 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4359
[2024-11-22 03:09:30,179 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:30,260 INFO  L225             Difference]: With dead ends: 9512
[2024-11-22 03:09:30,260 INFO  L226             Difference]: Without dead ends: 5155
[2024-11-22 03:09:30,264 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4364 GetRequests, 4359 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 03:09:30,266 INFO  L432           NwaCegarLoop]: 8520 mSDtfsCounter, 0 mSDsluCounter, 8511 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17031 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 03:09:30,266 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17031 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:30,272 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5155 states.
[2024-11-22 03:09:30,422 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5155 to 5155.
[2024-11-22 03:09:30,427 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5155 states, 4633 states have (on average 1.6179581264839198) internal successors, (7496), 4633 states have internal predecessors, (7496), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-22 03:09:30,437 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 8536 transitions.
[2024-11-22 03:09:30,439 INFO  L78                 Accepts]: Start accepts. Automaton has 5155 states and 8536 transitions. Word has length 4359
[2024-11-22 03:09:30,442 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:30,442 INFO  L471      AbstractCegarLoop]: Abstraction has 5155 states and 8536 transitions.
[2024-11-22 03:09:30,443 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 588.3333333333334) internal successors, (1765), 3 states have internal predecessors, (1765), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:30,443 INFO  L276                IsEmpty]: Start isEmpty. Operand 5155 states and 8536 transitions.
[2024-11-22 03:09:30,621 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4361
[2024-11-22 03:09:30,621 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:30,623 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:30,655 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 03:09:30,823 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 03:09:30,825 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:30,826 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:30,828 INFO  L85        PathProgramCache]: Analyzing trace with hash -583771831, now seen corresponding path program 1 times
[2024-11-22 03:09:30,830 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:30,831 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373241048]
[2024-11-22 03:09:30,831 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:30,832 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:31,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:35,267 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-22 03:09:35,268 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:35,268 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373241048]
[2024-11-22 03:09:35,268 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373241048] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:35,268 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256447117]
[2024-11-22 03:09:35,269 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:35,269 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:35,269 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:35,274 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 03:09:35,275 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 03:09:36,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:36,929 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9522 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:36,978 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:37,177 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1557 proven. 0 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-22 03:09:37,177 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:37,177 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256447117] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:37,178 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:37,182 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8
[2024-11-22 03:09:37,183 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767241829]
[2024-11-22 03:09:37,183 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:37,187 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 03:09:37,187 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:37,190 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 03:09:37,190 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:09:37,191 INFO  L87              Difference]: Start difference. First operand 5155 states and 8536 transitions. Second operand  has 6 states, 5 states have (on average 353.2) internal successors, (1766), 6 states have internal predecessors, (1766), 2 states have call successors, (520), 1 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:39,835 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:39,835 INFO  L93              Difference]: Finished difference Result 5167 states and 8550 transitions.
[2024-11-22 03:09:39,836 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-22 03:09:39,837 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 353.2) internal successors, (1766), 6 states have internal predecessors, (1766), 2 states have call successors, (520), 1 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4360
[2024-11-22 03:09:39,844 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:39,862 INFO  L225             Difference]: With dead ends: 5167
[2024-11-22 03:09:39,862 INFO  L226             Difference]: Without dead ends: 5157
[2024-11-22 03:09:39,866 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4365 GetRequests, 4359 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 03:09:39,866 INFO  L432           NwaCegarLoop]: 7997 mSDtfsCounter, 1 mSDsluCounter, 30935 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38932 SdHoareTripleChecker+Invalid, 3670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-22 03:09:39,867 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38932 Invalid, 3670 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-22 03:09:39,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5157 states.
[2024-11-22 03:09:40,103 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5157 to 5157.
[2024-11-22 03:09:40,111 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5157 states, 4635 states have (on average 1.6176914778856526) internal successors, (7498), 4635 states have internal predecessors, (7498), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-22 03:09:40,126 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 8538 transitions.
[2024-11-22 03:09:40,129 INFO  L78                 Accepts]: Start accepts. Automaton has 5157 states and 8538 transitions. Word has length 4360
[2024-11-22 03:09:40,135 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:40,136 INFO  L471      AbstractCegarLoop]: Abstraction has 5157 states and 8538 transitions.
[2024-11-22 03:09:40,137 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 353.2) internal successors, (1766), 6 states have internal predecessors, (1766), 2 states have call successors, (520), 1 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:40,137 INFO  L276                IsEmpty]: Start isEmpty. Operand 5157 states and 8538 transitions.
[2024-11-22 03:09:40,305 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4362
[2024-11-22 03:09:40,305 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:40,308 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:40,334 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-22 03:09:40,511 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 03:09:40,512 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:40,513 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:40,515 INFO  L85        PathProgramCache]: Analyzing trace with hash -1148394790, now seen corresponding path program 1 times
[2024-11-22 03:09:40,515 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:40,516 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370695885]
[2024-11-22 03:09:40,516 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:40,516 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:40,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:43,982 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-22 03:09:43,982 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:43,982 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370695885]
[2024-11-22 03:09:43,983 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370695885] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:43,983 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956805624]
[2024-11-22 03:09:43,983 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:43,984 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:43,984 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:43,986 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 03:09:43,987 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 03:09:45,534 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:45,575 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9525 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:45,636 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:45,827 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 2076 proven. 0 refuted. 0 times theorem prover too weak. 537684 trivial. 0 not checked.
[2024-11-22 03:09:45,827 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:45,827 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [956805624] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:45,827 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:45,828 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8
[2024-11-22 03:09:45,828 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583598669]
[2024-11-22 03:09:45,828 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:45,833 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 03:09:45,835 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:45,841 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 03:09:45,842 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-22 03:09:45,843 INFO  L87              Difference]: Start difference. First operand 5157 states and 8538 transitions. Second operand  has 4 states, 4 states have (on average 441.75) internal successors, (1767), 4 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:45,997 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:45,997 INFO  L93              Difference]: Finished difference Result 5187 states and 8580 transitions.
[2024-11-22 03:09:45,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 03:09:45,998 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 441.75) internal successors, (1767), 4 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4361
[2024-11-22 03:09:46,009 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:46,041 INFO  L225             Difference]: With dead ends: 5187
[2024-11-22 03:09:46,047 INFO  L226             Difference]: Without dead ends: 5166
[2024-11-22 03:09:46,051 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4366 GetRequests, 4360 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 03:09:46,054 INFO  L432           NwaCegarLoop]: 8517 mSDtfsCounter, 9 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25538 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 03:09:46,055 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25538 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:46,070 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5166 states.
[2024-11-22 03:09:46,497 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166.
[2024-11-22 03:09:46,519 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5166 states, 4644 states have (on average 1.6173557278208441) internal successors, (7511), 4644 states have internal predecessors, (7511), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-22 03:09:46,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 8551 transitions.
[2024-11-22 03:09:46,555 INFO  L78                 Accepts]: Start accepts. Automaton has 5166 states and 8551 transitions. Word has length 4361
[2024-11-22 03:09:46,566 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:46,566 INFO  L471      AbstractCegarLoop]: Abstraction has 5166 states and 8551 transitions.
[2024-11-22 03:09:46,571 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 441.75) internal successors, (1767), 4 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:46,574 INFO  L276                IsEmpty]: Start isEmpty. Operand 5166 states and 8551 transitions.
[2024-11-22 03:09:46,717 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4362
[2024-11-22 03:09:46,717 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:46,718 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:46,739 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 03:09:46,919 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 03:09:46,923 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:46,923 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:46,925 INFO  L85        PathProgramCache]: Analyzing trace with hash 1716649396, now seen corresponding path program 1 times
[2024-11-22 03:09:46,926 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:46,926 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391352398]
[2024-11-22 03:09:46,930 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:46,931 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:47,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:51,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-22 03:09:51,397 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:51,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391352398]
[2024-11-22 03:09:51,398 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391352398] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:51,398 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662009212]
[2024-11-22 03:09:51,398 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:51,399 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:51,399 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:51,400 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 03:09:51,402 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 03:09:53,043 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:53,088 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9525 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-22 03:09:53,590 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 03:09:53,666 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 2076 proven. 0 refuted. 0 times theorem prover too weak. 537684 trivial. 0 not checked.
[2024-11-22 03:09:53,666 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 03:09:53,666 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [662009212] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 03:09:53,666 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 03:09:53,667 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-22 03:09:53,667 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070715286]
[2024-11-22 03:09:53,667 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 03:09:53,669 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 03:09:53,670 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 03:09:53,672 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 03:09:53,673 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 03:09:53,674 INFO  L87              Difference]: Start difference. First operand 5166 states and 8551 transitions. Second operand  has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:53,725 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 03:09:53,725 INFO  L93              Difference]: Finished difference Result 5184 states and 8573 transitions.
[2024-11-22 03:09:53,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 03:09:53,726 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520) Word has length 4361
[2024-11-22 03:09:53,732 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 03:09:53,746 INFO  L225             Difference]: With dead ends: 5184
[2024-11-22 03:09:53,747 INFO  L226             Difference]: Without dead ends: 5167
[2024-11-22 03:09:53,750 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4366 GetRequests, 4361 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 03:09:53,750 INFO  L432           NwaCegarLoop]: 8520 mSDtfsCounter, 0 mSDsluCounter, 8511 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17031 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 03:09:53,750 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17031 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 03:09:53,757 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5167 states.
[2024-11-22 03:09:53,899 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 5167.
[2024-11-22 03:09:53,905 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 4645 states have (on average 1.6170075349838535) internal successors, (7511), 4645 states have internal predecessors, (7511), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520)
[2024-11-22 03:09:53,913 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8551 transitions.
[2024-11-22 03:09:53,915 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8551 transitions. Word has length 4361
[2024-11-22 03:09:53,918 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 03:09:53,919 INFO  L471      AbstractCegarLoop]: Abstraction has 5167 states and 8551 transitions.
[2024-11-22 03:09:53,919 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 2 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 2 states have call predecessors, (520), 2 states have call successors, (520)
[2024-11-22 03:09:53,920 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8551 transitions.
[2024-11-22 03:09:54,107 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4363
[2024-11-22 03:09:54,108 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 03:09:54,109 INFO  L215           NwaCegarLoop]: trace histogram [520, 520, 520, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:54,130 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 03:09:54,310 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 03:09:54,316 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 03:09:54,318 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 03:09:54,319 INFO  L85        PathProgramCache]: Analyzing trace with hash 248689411, now seen corresponding path program 1 times
[2024-11-22 03:09:54,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 03:09:54,320 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970118207]
[2024-11-22 03:09:54,320 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:54,320 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 03:09:54,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:09:58,818 INFO  L134       CoverageAnalysis]: Checked inductivity of 539760 backedges. 1170 proven. 387 refuted. 0 times theorem prover too weak. 538203 trivial. 0 not checked.
[2024-11-22 03:09:58,822 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 03:09:58,822 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970118207]
[2024-11-22 03:09:58,822 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970118207] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 03:09:58,822 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319419568]
[2024-11-22 03:09:58,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 03:09:58,823 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 03:09:58,823 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 03:09:58,827 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 03:09:58,829 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 03:10:00,412 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 03:10:00,455 INFO  L255         TraceCheckSpWp]: Trace formula consists of 9528 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-22 03:10:00,493 INFO  L278         TraceCheckSpWp]: Computing forward predicates...