./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/id_o1000.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 8be7027f
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/id_o1000.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 1ac5ce2c5b306e431b6746a0cb1bbdfcd1ec9c3d54097bd6037af4480ff2bd07
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m
[2024-11-11 21:00:09,741 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-11 21:00:09,827 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-11 21:00:09,833 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-11 21:00:09,833 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-11 21:00:09,864 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-11 21:00:09,865 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-11 21:00:09,866 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-11 21:00:09,866 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-11 21:00:09,867 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-11 21:00:09,867 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-11 21:00:09,868 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-11 21:00:09,868 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-11 21:00:09,869 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-11 21:00:09,869 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-11 21:00:09,870 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-11 21:00:09,870 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-11 21:00:09,870 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-11 21:00:09,871 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-11 21:00:09,871 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-11 21:00:09,872 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-11 21:00:09,872 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-11 21:00:09,872 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-11 21:00:09,873 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-11 21:00:09,873 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-11 21:00:09,873 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-11 21:00:09,874 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-11 21:00:09,874 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-11 21:00:09,874 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-11 21:00:09,875 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-11 21:00:09,875 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-11 21:00:09,875 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-11 21:00:09,876 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-11 21:00:09,876 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-11 21:00:09,876 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-11 21:00:09,877 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-11 21:00:09,877 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-11 21:00:09,877 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-11 21:00:09,877 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-11 21:00:09,878 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-11 21:00:09,878 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-11 21:00:09,878 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-11 21:00:09,878 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 -> 1ac5ce2c5b306e431b6746a0cb1bbdfcd1ec9c3d54097bd6037af4480ff2bd07
[2024-11-11 21:00:10,137 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-11 21:00:10,160 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-11 21:00:10,163 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-11 21:00:10,164 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-11 21:00:10,164 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-11 21:00:10,165 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_o1000.c
[2024-11-11 21:00:11,601 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-11 21:00:11,774 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-11 21:00:11,775 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_o1000.c
[2024-11-11 21:00:11,781 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b732394bd/d01c81c592d1412d946a0cb718975153/FLAG821bdb14c
[2024-11-11 21:00:11,796 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b732394bd/d01c81c592d1412d946a0cb718975153
[2024-11-11 21:00:11,800 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-11 21:00:11,802 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-11 21:00:11,804 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-11 21:00:11,804 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-11 21:00:11,808 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-11 21:00:11,809 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:00:11" (1/1) ...
[2024-11-11 21:00:11,810 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2813c01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:11, skipping insertion in model container
[2024-11-11 21:00:11,810 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:00:11" (1/1) ...
[2024-11-11 21:00:11,825 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-11 21:00:12,013 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/recursive-simple/id_o1000.c[520,533]
[2024-11-11 21:00:12,017 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-11 21:00:12,032 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-11 21:00:12,044 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/recursive-simple/id_o1000.c[520,533]
[2024-11-11 21:00:12,046 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-11 21:00:12,062 INFO  L204         MainTranslator]: Completed translation
[2024-11-11 21:00:12,062 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12 WrapperNode
[2024-11-11 21:00:12,063 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-11 21:00:12,063 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-11 21:00:12,064 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-11 21:00:12,064 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-11 21:00:12,071 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,076 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,091 INFO  L138                Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19
[2024-11-11 21:00:12,092 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-11 21:00:12,093 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-11 21:00:12,093 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-11 21:00:12,093 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-11 21:00:12,103 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,103 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,105 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,115 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].
[2024-11-11 21:00:12,116 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,116 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,119 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,120 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,124 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,125 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,126 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-11 21:00:12,127 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-11 21:00:12,130 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-11 21:00:12,131 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-11 21:00:12,131 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (1/1) ...
[2024-11-11 21:00:12,137 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-11 21:00:12,148 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 21:00:12,163 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)
[2024-11-11 21:00:12,165 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
[2024-11-11 21:00:12,203 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-11 21:00:12,204 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-11 21:00:12,204 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-11 21:00:12,204 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-11 21:00:12,204 INFO  L130     BoogieDeclarations]: Found specification of procedure id
[2024-11-11 21:00:12,204 INFO  L138     BoogieDeclarations]: Found implementation of procedure id
[2024-11-11 21:00:12,256 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-11 21:00:12,258 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-11 21:00:12,353 INFO  L?                        ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2024-11-11 21:00:12,353 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-11 21:00:12,363 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-11 21:00:12,363 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-11 21:00:12,364 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:00:12 BoogieIcfgContainer
[2024-11-11 21:00:12,367 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-11 21:00:12,369 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-11 21:00:12,369 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-11 21:00:12,374 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-11 21:00:12,374 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:00:11" (1/3) ...
[2024-11-11 21:00:12,376 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d0a367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:00:12, skipping insertion in model container
[2024-11-11 21:00:12,376 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:00:12" (2/3) ...
[2024-11-11 21:00:12,377 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d0a367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:00:12, skipping insertion in model container
[2024-11-11 21:00:12,377 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:00:12" (3/3) ...
[2024-11-11 21:00:12,378 INFO  L112   eAbstractionObserver]: Analyzing ICFG id_o1000.c
[2024-11-11 21:00:12,396 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-11 21:00:12,396 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-11 21:00:12,456 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-11 21:00:12,462 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;@42dd5782, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-11 21:00:12,463 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-11 21:00:12,466 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-11 21:00:12,472 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-11 21:00:12,473 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 21:00:12,473 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 21:00:12,474 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 21:00:12,479 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 21:00:12,480 INFO  L85        PathProgramCache]: Analyzing trace with hash -358017204, now seen corresponding path program 1 times
[2024-11-11 21:00:12,486 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 21:00:12,486 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681910607]
[2024-11-11 21:00:12,486 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 21:00:12,487 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 21:00:12,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:12,721 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:12,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:12,772 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-11 21:00:12,773 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 21:00:12,773 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681910607]
[2024-11-11 21:00:12,774 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681910607] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 21:00:12,774 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 21:00:12,774 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-11 21:00:12,776 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577891344]
[2024-11-11 21:00:12,776 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 21:00:12,780 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-11 21:00:12,780 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 21:00:12,800 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-11 21:00:12,801 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-11 21:00:12,803 INFO  L87              Difference]: Start difference. First operand  has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-11 21:00:12,841 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 21:00:12,842 INFO  L93              Difference]: Finished difference Result 25 states and 28 transitions.
[2024-11-11 21:00:12,843 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-11 21:00:12,844 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10
[2024-11-11 21:00:12,845 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 21:00:12,852 INFO  L225             Difference]: With dead ends: 25
[2024-11-11 21:00:12,852 INFO  L226             Difference]: Without dead ends: 15
[2024-11-11 21:00:12,855 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-11 21:00:12,859 INFO  L435           NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-11 21:00:12,860 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-11 21:00:12,876 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-11-11 21:00:12,892 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2024-11-11 21:00:12,894 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-11 21:00:12,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions.
[2024-11-11 21:00:12,896 INFO  L78                 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10
[2024-11-11 21:00:12,897 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 21:00:12,897 INFO  L471      AbstractCegarLoop]: Abstraction has 15 states and 16 transitions.
[2024-11-11 21:00:12,898 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-11 21:00:12,898 INFO  L276                IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions.
[2024-11-11 21:00:12,899 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-11 21:00:12,900 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 21:00:12,900 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 21:00:12,901 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-11 21:00:12,901 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 21:00:12,902 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 21:00:12,903 INFO  L85        PathProgramCache]: Analyzing trace with hash 679465686, now seen corresponding path program 1 times
[2024-11-11 21:00:12,903 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 21:00:12,903 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417829403]
[2024-11-11 21:00:12,903 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 21:00:12,904 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 21:00:12,932 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:13,086 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:13,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:13,159 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:13,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:13,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-11 21:00:13,216 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 21:00:13,216 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417829403]
[2024-11-11 21:00:13,217 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417829403] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-11 21:00:13,217 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957812290]
[2024-11-11 21:00:13,217 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 21:00:13,217 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 21:00:13,218 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 21:00:13,220 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)
[2024-11-11 21:00:13,222 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-11 21:00:13,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:13,287 INFO  L256         TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-11 21:00:13,294 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-11 21:00:13,365 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-11 21:00:13,365 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-11 21:00:13,536 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-11 21:00:13,536 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957812290] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-11 21:00:13,536 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-11 21:00:13,536 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13
[2024-11-11 21:00:13,538 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262510725]
[2024-11-11 21:00:13,538 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-11 21:00:13,539 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-11 21:00:13,539 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 21:00:13,540 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-11 21:00:13,540 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2024-11-11 21:00:13,541 INFO  L87              Difference]: Start difference. First operand 15 states and 16 transitions. Second operand  has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4)
[2024-11-11 21:00:13,595 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 21:00:13,596 INFO  L93              Difference]: Finished difference Result 27 states and 29 transitions.
[2024-11-11 21:00:13,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-11 21:00:13,597 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 16
[2024-11-11 21:00:13,597 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 21:00:13,598 INFO  L225             Difference]: With dead ends: 27
[2024-11-11 21:00:13,598 INFO  L226             Difference]: Without dead ends: 21
[2024-11-11 21:00:13,599 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2024-11-11 21:00:13,601 INFO  L435           NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-11 21:00:13,602 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-11 21:00:13,602 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-11-11 21:00:13,608 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2024-11-11 21:00:13,609 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-11 21:00:13,610 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions.
[2024-11-11 21:00:13,611 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16
[2024-11-11 21:00:13,612 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 21:00:13,612 INFO  L471      AbstractCegarLoop]: Abstraction has 21 states and 22 transitions.
[2024-11-11 21:00:13,612 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4)
[2024-11-11 21:00:13,612 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions.
[2024-11-11 21:00:13,613 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-11 21:00:13,613 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 21:00:13,614 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 21:00:13,633 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-11 21:00:13,818 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 21:00:13,819 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 21:00:13,820 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 21:00:13,820 INFO  L85        PathProgramCache]: Analyzing trace with hash 1769866774, now seen corresponding path program 2 times
[2024-11-11 21:00:13,820 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 21:00:13,820 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966184093]
[2024-11-11 21:00:13,820 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 21:00:13,822 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 21:00:13,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:14,019 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:14,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:14,101 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:14,108 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:14,173 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:14,179 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:14,222 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:14,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:14,257 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-11 21:00:14,257 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 21:00:14,257 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966184093]
[2024-11-11 21:00:14,257 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966184093] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-11 21:00:14,258 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783015687]
[2024-11-11 21:00:14,258 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-11 21:00:14,258 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 21:00:14,258 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 21:00:14,260 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)
[2024-11-11 21:00:14,262 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-11 21:00:14,308 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-11 21:00:14,308 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-11 21:00:14,309 INFO  L256         TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-11 21:00:14,311 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-11 21:00:14,365 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-11 21:00:14,368 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-11 21:00:14,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-11 21:00:14,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783015687] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-11 21:00:14,687 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-11 21:00:14,687 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21
[2024-11-11 21:00:14,688 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971850428]
[2024-11-11 21:00:14,688 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-11 21:00:14,688 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-11 21:00:14,688 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 21:00:14,690 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-11 21:00:14,690 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420
[2024-11-11 21:00:14,691 INFO  L87              Difference]: Start difference. First operand 21 states and 22 transitions. Second operand  has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8)
[2024-11-11 21:00:14,885 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 21:00:14,885 INFO  L93              Difference]: Finished difference Result 39 states and 43 transitions.
[2024-11-11 21:00:14,885 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2024-11-11 21:00:14,886 INFO  L78                 Accepts]: Start accepts. Automaton has  has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) Word has length 28
[2024-11-11 21:00:14,886 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 21:00:14,887 INFO  L225             Difference]: With dead ends: 39
[2024-11-11 21:00:14,887 INFO  L226             Difference]: Without dead ends: 33
[2024-11-11 21:00:14,888 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600
[2024-11-11 21:00:14,888 INFO  L435           NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-11 21:00:14,889 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-11 21:00:14,890 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2024-11-11 21:00:14,898 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2024-11-11 21:00:14,900 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (9), 8 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-11 21:00:14,902 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions.
[2024-11-11 21:00:14,902 INFO  L78                 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 28
[2024-11-11 21:00:14,902 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 21:00:14,902 INFO  L471      AbstractCegarLoop]: Abstraction has 33 states and 34 transitions.
[2024-11-11 21:00:14,903 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8)
[2024-11-11 21:00:14,903 INFO  L276                IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions.
[2024-11-11 21:00:14,904 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-11 21:00:14,905 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 21:00:14,905 INFO  L218           NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 21:00:14,922 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-11 21:00:15,105 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,SelfDestructingSolverStorable2
[2024-11-11 21:00:15,106 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 21:00:15,107 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 21:00:15,107 INFO  L85        PathProgramCache]: Analyzing trace with hash -626238314, now seen corresponding path program 3 times
[2024-11-11 21:00:15,107 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 21:00:15,107 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033748455]
[2024-11-11 21:00:15,107 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 21:00:15,108 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 21:00:15,130 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:15,293 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:15,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:15,385 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:15,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:15,494 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:15,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:15,585 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:15,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:15,655 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:15,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:15,720 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:15,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:15,775 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:15,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:15,821 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:15,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:15,849 INFO  L134       CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2024-11-11 21:00:15,849 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 21:00:15,849 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033748455]
[2024-11-11 21:00:15,849 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033748455] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-11 21:00:15,849 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200363118]
[2024-11-11 21:00:15,850 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-11 21:00:15,850 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 21:00:15,850 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 21:00:15,852 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)
[2024-11-11 21:00:15,858 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-11 21:00:15,926 INFO  L229   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s)
[2024-11-11 21:00:15,926 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-11 21:00:15,927 INFO  L256         TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 36 conjuncts are in the unsatisfiable core
[2024-11-11 21:00:15,930 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-11 21:00:16,016 INFO  L134       CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2024-11-11 21:00:16,016 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-11 21:00:16,908 INFO  L134       CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2024-11-11 21:00:16,909 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [200363118] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-11 21:00:16,909 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-11 21:00:16,909 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 37
[2024-11-11 21:00:16,909 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069734824]
[2024-11-11 21:00:16,910 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-11 21:00:16,910 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2024-11-11 21:00:16,910 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 21:00:16,911 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2024-11-11 21:00:16,913 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1144, Unknown=0, NotChecked=0, Total=1332
[2024-11-11 21:00:16,913 INFO  L87              Difference]: Start difference. First operand 33 states and 34 transitions. Second operand  has 37 states, 37 states have (on average 1.162162162162162) internal successors, (43), 21 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-11 21:00:17,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 21:00:17,959 INFO  L93              Difference]: Finished difference Result 63 states and 71 transitions.
[2024-11-11 21:00:17,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2024-11-11 21:00:17,961 INFO  L78                 Accepts]: Start accepts. Automaton has  has 37 states, 37 states have (on average 1.162162162162162) internal successors, (43), 21 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) Word has length 52
[2024-11-11 21:00:17,962 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 21:00:17,963 INFO  L225             Difference]: With dead ends: 63
[2024-11-11 21:00:17,963 INFO  L226             Difference]: Without dead ends: 57
[2024-11-11 21:00:17,965 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=386, Invalid=1966, Unknown=0, NotChecked=0, Total=2352
[2024-11-11 21:00:17,967 INFO  L435           NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-11 21:00:17,969 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 452 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-11 21:00:17,969 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-11-11 21:00:17,986 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2024-11-11 21:00:17,986 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 39 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (17), 16 states have call predecessors, (17), 2 states have call successors, (17)
[2024-11-11 21:00:17,988 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions.
[2024-11-11 21:00:17,989 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 52
[2024-11-11 21:00:17,989 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 21:00:17,990 INFO  L471      AbstractCegarLoop]: Abstraction has 57 states and 58 transitions.
[2024-11-11 21:00:17,990 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 37 states, 37 states have (on average 1.162162162162162) internal successors, (43), 21 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-11 21:00:17,992 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions.
[2024-11-11 21:00:17,994 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2024-11-11 21:00:17,995 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 21:00:17,995 INFO  L218           NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 21:00:18,012 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-11 21:00:18,199 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 21:00:18,200 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 21:00:18,200 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 21:00:18,201 INFO  L85        PathProgramCache]: Analyzing trace with hash 415287702, now seen corresponding path program 4 times
[2024-11-11 21:00:18,201 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 21:00:18,201 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982469733]
[2024-11-11 21:00:18,201 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 21:00:18,201 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 21:00:18,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:18,486 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:18,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:18,697 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:18,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:18,920 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:18,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:19,085 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:19,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:19,214 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:19,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:19,353 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:19,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:19,488 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:19,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:19,587 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:19,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:19,686 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:19,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:19,788 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:19,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:19,867 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:19,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:19,942 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:19,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:20,011 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:20,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:20,079 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:20,082 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:20,147 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:20,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:20,213 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:20,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:20,252 INFO  L134       CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2024-11-11 21:00:20,252 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 21:00:20,253 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982469733]
[2024-11-11 21:00:20,253 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982469733] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-11 21:00:20,253 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347878208]
[2024-11-11 21:00:20,253 INFO  L95    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-11 21:00:20,253 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 21:00:20,253 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 21:00:20,255 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)
[2024-11-11 21:00:20,256 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-11 21:00:20,317 INFO  L229   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-11 21:00:20,317 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-11 21:00:20,319 INFO  L256         TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 68 conjuncts are in the unsatisfiable core
[2024-11-11 21:00:20,322 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-11 21:00:20,423 INFO  L134       CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2024-11-11 21:00:20,423 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-11 21:00:23,018 INFO  L134       CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2024-11-11 21:00:23,019 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347878208] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-11 21:00:23,019 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-11 21:00:23,019 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 69
[2024-11-11 21:00:23,019 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018133096]
[2024-11-11 21:00:23,019 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-11 21:00:23,021 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 69 states
[2024-11-11 21:00:23,023 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 21:00:23,024 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants.
[2024-11-11 21:00:23,026 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=620, Invalid=4072, Unknown=0, NotChecked=0, Total=4692
[2024-11-11 21:00:23,026 INFO  L87              Difference]: Start difference. First operand 57 states and 58 transitions. Second operand  has 69 states, 69 states have (on average 1.0869565217391304) internal successors, (75), 37 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32)
[2024-11-11 21:00:28,930 WARN  L286               SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-11 21:00:43,566 WARN  L286               SmtUtils]: Spent 7.02s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-11 21:00:53,897 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 21:00:53,897 INFO  L93              Difference]: Finished difference Result 111 states and 127 transitions.
[2024-11-11 21:00:53,900 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2024-11-11 21:00:53,900 INFO  L78                 Accepts]: Start accepts. Automaton has  has 69 states, 69 states have (on average 1.0869565217391304) internal successors, (75), 37 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) Word has length 100
[2024-11-11 21:00:53,901 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 21:00:53,902 INFO  L225             Difference]: With dead ends: 111
[2024-11-11 21:00:53,902 INFO  L226             Difference]: Without dead ends: 105
[2024-11-11 21:00:53,907 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 32.4s TimeCoverageRelationStatistics Valid=1530, Invalid=7782, Unknown=0, NotChecked=0, Total=9312
[2024-11-11 21:00:53,908 INFO  L435           NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-11 21:00:53,908 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1284 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-11 21:00:53,909 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 105 states.
[2024-11-11 21:00:53,924 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105.
[2024-11-11 21:00:53,924 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 105 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 71 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (33), 32 states have call predecessors, (33), 2 states have call successors, (33)
[2024-11-11 21:00:53,926 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 106 transitions.
[2024-11-11 21:00:53,926 INFO  L78                 Accepts]: Start accepts. Automaton has 105 states and 106 transitions. Word has length 100
[2024-11-11 21:00:53,927 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 21:00:53,927 INFO  L471      AbstractCegarLoop]: Abstraction has 105 states and 106 transitions.
[2024-11-11 21:00:53,927 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 69 states, 69 states have (on average 1.0869565217391304) internal successors, (75), 37 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32)
[2024-11-11 21:00:53,927 INFO  L276                IsEmpty]: Start isEmpty. Operand 105 states and 106 transitions.
[2024-11-11 21:00:53,930 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 197
[2024-11-11 21:00:53,931 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 21:00:53,931 INFO  L218           NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-11 21:00:53,944 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-11 21:00:54,134 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 21:00:54,135 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 21:00:54,135 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 21:00:54,135 INFO  L85        PathProgramCache]: Analyzing trace with hash 1665704854, now seen corresponding path program 5 times
[2024-11-11 21:00:54,136 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 21:00:54,136 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498600396]
[2024-11-11 21:00:54,136 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 21:00:54,136 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 21:00:54,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:54,824 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:54,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:55,411 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:55,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:55,959 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:56,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:56,418 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:56,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:56,841 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:56,896 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:57,270 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:57,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:57,647 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:57,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:57,994 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:58,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:58,445 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:58,474 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:58,780 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:58,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:59,075 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:59,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:59,339 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:59,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:59,587 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:59,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:00:59,807 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:00:59,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:00,066 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:00,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:00,312 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:00,325 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:00,490 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:00,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:00,664 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:00,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:00,853 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:00,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:01,018 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:01,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:01,184 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:01,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:01,335 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:01,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:01,480 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:01,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:01,615 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:01,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:01,758 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:01,763 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:01,885 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:01,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:02,008 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:02,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:02,131 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:02,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:02,249 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:02,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:02,374 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:02,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:02,495 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:02,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:02,596 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-11 21:01:02,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 21:01:02,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked.
[2024-11-11 21:01:02,654 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 21:01:02,654 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498600396]
[2024-11-11 21:01:02,654 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498600396] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-11 21:01:02,654 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149114216]
[2024-11-11 21:01:02,654 INFO  L95    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-11 21:01:02,655 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-11 21:01:02,655 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 21:01:02,657 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)
[2024-11-11 21:01:02,658 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-11 21:01:03,118 INFO  L229   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s)
[2024-11-11 21:01:03,118 INFO  L230   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-11 21:01:03,120 INFO  L256         TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 132 conjuncts are in the unsatisfiable core
[2024-11-11 21:01:03,125 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-11 21:01:03,289 INFO  L134       CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked.
[2024-11-11 21:01:03,290 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-11 21:01:11,734 INFO  L134       CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked.
[2024-11-11 21:01:11,735 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [149114216] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-11 21:01:11,735 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-11 21:01:11,735 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67, 67] total 133
[2024-11-11 21:01:11,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311810202]
[2024-11-11 21:01:11,735 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-11 21:01:11,736 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 133 states
[2024-11-11 21:01:11,736 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 21:01:11,739 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants.
[2024-11-11 21:01:11,743 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=2252, Invalid=15304, Unknown=0, NotChecked=0, Total=17556
[2024-11-11 21:01:11,743 INFO  L87              Difference]: Start difference. First operand 105 states and 106 transitions. Second operand  has 133 states, 133 states have (on average 1.0451127819548873) internal successors, (139), 69 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 64 states have return successors, (64), 64 states have call predecessors, (64), 1 states have call successors, (64)