./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label14.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 023d838f
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label14.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 471d591bac756b3641e5eebd3ed64b220338148881b3c7fbab3f4295451226cd
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m
[2024-11-09 18:37:32,538 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-09 18:37:32,607 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-09 18:37:32,612 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-09 18:37:32,625 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-09 18:37:32,661 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-09 18:37:32,663 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-09 18:37:32,663 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-09 18:37:32,664 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-09 18:37:32,665 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-09 18:37:32,665 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-09 18:37:32,666 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-09 18:37:32,666 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-09 18:37:32,667 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-09 18:37:32,667 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-09 18:37:32,669 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-09 18:37:32,669 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-09 18:37:32,669 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-09 18:37:32,669 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-09 18:37:32,670 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-09 18:37:32,670 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-09 18:37:32,673 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-09 18:37:32,674 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-09 18:37:32,674 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-09 18:37:32,674 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-09 18:37:32,674 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-09 18:37:32,674 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-09 18:37:32,675 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-09 18:37:32,675 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-09 18:37:32,675 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-09 18:37:32,676 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-09 18:37:32,676 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-09 18:37:32,676 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-09 18:37:32,676 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-09 18:37:32,676 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-09 18:37:32,676 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-09 18:37:32,676 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-09 18:37:32,677 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-09 18:37:32,677 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-09 18:37:32,677 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-09 18:37:32,677 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-09 18:37:32,678 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-09 18:37:32,678 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 -> 471d591bac756b3641e5eebd3ed64b220338148881b3c7fbab3f4295451226cd
[2024-11-09 18:37:32,874 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-09 18:37:32,895 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-09 18:37:32,898 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-09 18:37:32,900 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-09 18:37:32,900 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-09 18:37:32,902 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label14.c
[2024-11-09 18:37:34,150 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-09 18:37:34,387 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-09 18:37:34,388 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label14.c
[2024-11-09 18:37:34,398 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae7f4a73/5c3b337da69349a6b2622a6911eaa16f/FLAG2e1251ea5
[2024-11-09 18:37:34,414 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae7f4a73/5c3b337da69349a6b2622a6911eaa16f
[2024-11-09 18:37:34,417 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-09 18:37:34,419 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-09 18:37:34,420 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-09 18:37:34,420 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-09 18:37:34,427 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-09 18:37:34,427 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:34,428 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511c5aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34, skipping insertion in model container
[2024-11-09 18:37:34,428 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:34,478 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-09 18:37:34,738 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label14.c[18715,18728]
[2024-11-09 18:37:34,783 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-09 18:37:34,791 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-09 18:37:34,849 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label14.c[18715,18728]
[2024-11-09 18:37:34,862 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-09 18:37:34,878 INFO  L204         MainTranslator]: Completed translation
[2024-11-09 18:37:34,879 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34 WrapperNode
[2024-11-09 18:37:34,879 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-09 18:37:34,880 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-09 18:37:34,880 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-09 18:37:34,880 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-09 18:37:34,885 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:34,898 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:34,938 INFO  L138                Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668
[2024-11-09 18:37:34,939 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-09 18:37:34,939 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-09 18:37:34,939 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-09 18:37:34,940 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-09 18:37:34,949 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:34,949 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:34,952 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:34,985 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].
[2024-11-09 18:37:34,986 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:34,987 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:35,000 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:35,002 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:35,006 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:35,008 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:35,013 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-09 18:37:35,014 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2024-11-09 18:37:35,014 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2024-11-09 18:37:35,014 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2024-11-09 18:37:35,015 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (1/1) ...
[2024-11-09 18:37:35,022 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-09 18:37:35,032 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-09 18:37:35,049 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)
[2024-11-09 18:37:35,052 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
[2024-11-09 18:37:35,092 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-09 18:37:35,093 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-09 18:37:35,094 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-09 18:37:35,094 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-09 18:37:35,156 INFO  L256             CfgBuilder]: Building ICFG
[2024-11-09 18:37:35,158 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-09 18:37:35,945 INFO  L?                        ?]: Removed 84 outVars from TransFormulas that were not future-live.
[2024-11-09 18:37:35,945 INFO  L307             CfgBuilder]: Performing block encoding
[2024-11-09 18:37:35,963 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-09 18:37:35,964 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-09 18:37:35,964 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:37:35 BoogieIcfgContainer
[2024-11-09 18:37:35,964 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2024-11-09 18:37:35,966 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-09 18:37:35,967 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-09 18:37:35,970 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-09 18:37:35,971 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:37:34" (1/3) ...
[2024-11-09 18:37:35,971 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e845b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:37:35, skipping insertion in model container
[2024-11-09 18:37:35,972 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:34" (2/3) ...
[2024-11-09 18:37:35,972 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e845b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:37:35, skipping insertion in model container
[2024-11-09 18:37:35,972 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:37:35" (3/3) ...
[2024-11-09 18:37:35,973 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem02_label14.c
[2024-11-09 18:37:35,987 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-09 18:37:35,988 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-09 18:37:36,041 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-09 18:37:36,046 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;@1f76bbed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-09 18:37:36,047 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-09 18:37:36,052 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 230 states, 228 states have (on average 1.6578947368421053) internal successors, (378), 229 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:36,063 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-11-09 18:37:36,063 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:36,064 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:36,065 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:36,068 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:36,069 INFO  L85        PathProgramCache]: Analyzing trace with hash -1564413899, now seen corresponding path program 1 times
[2024-11-09 18:37:36,075 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:36,076 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625725727]
[2024-11-09 18:37:36,076 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:36,076 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:36,245 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:36,494 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:36,495 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:36,495 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625725727]
[2024-11-09 18:37:36,495 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625725727] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:36,496 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:36,496 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-09 18:37:36,498 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842675833]
[2024-11-09 18:37:36,499 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:36,503 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:36,505 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:36,527 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:36,527 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:36,530 INFO  L87              Difference]: Start difference. First operand  has 230 states, 228 states have (on average 1.6578947368421053) internal successors, (378), 229 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:37,143 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:37,144 INFO  L93              Difference]: Finished difference Result 607 states and 1041 transitions.
[2024-11-09 18:37:37,145 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:37,146 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119
[2024-11-09 18:37:37,147 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:37,157 INFO  L225             Difference]: With dead ends: 607
[2024-11-09 18:37:37,157 INFO  L226             Difference]: Without dead ends: 313
[2024-11-09 18:37:37,160 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:37,163 INFO  L432           NwaCegarLoop]: 99 mSDtfsCounter, 117 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:37,163 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 121 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-09 18:37:37,179 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 313 states.
[2024-11-09 18:37:37,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313.
[2024-11-09 18:37:37,200 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 313 states, 312 states have (on average 1.4326923076923077) internal successors, (447), 312 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:37,201 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 447 transitions.
[2024-11-09 18:37:37,203 INFO  L78                 Accepts]: Start accepts. Automaton has 313 states and 447 transitions. Word has length 119
[2024-11-09 18:37:37,203 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:37,203 INFO  L471      AbstractCegarLoop]: Abstraction has 313 states and 447 transitions.
[2024-11-09 18:37:37,204 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:37,204 INFO  L276                IsEmpty]: Start isEmpty. Operand 313 states and 447 transitions.
[2024-11-09 18:37:37,206 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2024-11-09 18:37:37,206 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:37,206 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:37,206 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-09 18:37:37,206 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:37,207 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:37,207 INFO  L85        PathProgramCache]: Analyzing trace with hash 802740505, now seen corresponding path program 1 times
[2024-11-09 18:37:37,207 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:37,207 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850301418]
[2024-11-09 18:37:37,207 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:37,208 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:37,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:37,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:37,450 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:37,450 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850301418]
[2024-11-09 18:37:37,450 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850301418] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:37,450 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:37,450 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-09 18:37:37,451 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294650339]
[2024-11-09 18:37:37,451 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:37,452 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:37,452 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:37,454 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:37,454 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:37,455 INFO  L87              Difference]: Start difference. First operand 313 states and 447 transitions. Second operand  has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:37,818 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:37,818 INFO  L93              Difference]: Finished difference Result 922 states and 1323 transitions.
[2024-11-09 18:37:37,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:37,819 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138
[2024-11-09 18:37:37,819 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:37,822 INFO  L225             Difference]: With dead ends: 922
[2024-11-09 18:37:37,822 INFO  L226             Difference]: Without dead ends: 611
[2024-11-09 18:37:37,823 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:37,824 INFO  L432           NwaCegarLoop]: 72 mSDtfsCounter, 159 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:37,824 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 101 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-09 18:37:37,825 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 611 states.
[2024-11-09 18:37:37,841 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 603.
[2024-11-09 18:37:37,842 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 603 states, 602 states have (on average 1.393687707641196) internal successors, (839), 602 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:37,844 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 839 transitions.
[2024-11-09 18:37:37,844 INFO  L78                 Accepts]: Start accepts. Automaton has 603 states and 839 transitions. Word has length 138
[2024-11-09 18:37:37,844 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:37,844 INFO  L471      AbstractCegarLoop]: Abstraction has 603 states and 839 transitions.
[2024-11-09 18:37:37,844 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:37,845 INFO  L276                IsEmpty]: Start isEmpty. Operand 603 states and 839 transitions.
[2024-11-09 18:37:37,847 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2024-11-09 18:37:37,847 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:37,847 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:37,848 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-09 18:37:37,848 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:37,848 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:37,848 INFO  L85        PathProgramCache]: Analyzing trace with hash -2116104797, now seen corresponding path program 1 times
[2024-11-09 18:37:37,849 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:37,849 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871974202]
[2024-11-09 18:37:37,849 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:37,849 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:37,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:37,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:37,947 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:37,947 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871974202]
[2024-11-09 18:37:37,947 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871974202] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:37,947 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:37,948 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-09 18:37:37,948 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44247522]
[2024-11-09 18:37:37,948 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:37,948 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:37,948 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:37,949 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:37,949 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:37,949 INFO  L87              Difference]: Start difference. First operand 603 states and 839 transitions. Second operand  has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:38,341 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:38,341 INFO  L93              Difference]: Finished difference Result 1785 states and 2491 transitions.
[2024-11-09 18:37:38,343 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:38,344 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139
[2024-11-09 18:37:38,344 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:38,347 INFO  L225             Difference]: With dead ends: 1785
[2024-11-09 18:37:38,347 INFO  L226             Difference]: Without dead ends: 1184
[2024-11-09 18:37:38,348 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:38,349 INFO  L432           NwaCegarLoop]: 101 mSDtfsCounter, 185 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:38,350 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 123 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-09 18:37:38,351 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1184 states.
[2024-11-09 18:37:38,370 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1184.
[2024-11-09 18:37:38,371 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1184 states, 1183 states have (on average 1.3431952662721893) internal successors, (1589), 1183 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:38,374 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1589 transitions.
[2024-11-09 18:37:38,374 INFO  L78                 Accepts]: Start accepts. Automaton has 1184 states and 1589 transitions. Word has length 139
[2024-11-09 18:37:38,374 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:38,375 INFO  L471      AbstractCegarLoop]: Abstraction has 1184 states and 1589 transitions.
[2024-11-09 18:37:38,375 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:38,375 INFO  L276                IsEmpty]: Start isEmpty. Operand 1184 states and 1589 transitions.
[2024-11-09 18:37:38,377 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2024-11-09 18:37:38,377 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:38,377 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:38,378 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-09 18:37:38,378 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:38,378 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:38,378 INFO  L85        PathProgramCache]: Analyzing trace with hash -653693219, now seen corresponding path program 1 times
[2024-11-09 18:37:38,378 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:38,379 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929478238]
[2024-11-09 18:37:38,379 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:38,379 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:38,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:38,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:38,475 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:38,475 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929478238]
[2024-11-09 18:37:38,476 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929478238] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:38,476 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:38,476 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-09 18:37:38,476 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697119617]
[2024-11-09 18:37:38,476 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:38,477 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:38,477 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:38,477 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:38,477 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:38,478 INFO  L87              Difference]: Start difference. First operand 1184 states and 1589 transitions. Second operand  has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:38,835 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:38,835 INFO  L93              Difference]: Finished difference Result 3494 states and 4696 transitions.
[2024-11-09 18:37:38,836 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:38,836 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143
[2024-11-09 18:37:38,836 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:38,842 INFO  L225             Difference]: With dead ends: 3494
[2024-11-09 18:37:38,842 INFO  L226             Difference]: Without dead ends: 2312
[2024-11-09 18:37:38,844 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:38,845 INFO  L432           NwaCegarLoop]: 79 mSDtfsCounter, 152 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:38,845 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 91 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-09 18:37:38,849 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2312 states.
[2024-11-09 18:37:38,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312.
[2024-11-09 18:37:38,889 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2312 states, 2311 states have (on average 1.2881869320640416) internal successors, (2977), 2311 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:38,894 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 2977 transitions.
[2024-11-09 18:37:38,895 INFO  L78                 Accepts]: Start accepts. Automaton has 2312 states and 2977 transitions. Word has length 143
[2024-11-09 18:37:38,895 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:38,895 INFO  L471      AbstractCegarLoop]: Abstraction has 2312 states and 2977 transitions.
[2024-11-09 18:37:38,895 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:38,896 INFO  L276                IsEmpty]: Start isEmpty. Operand 2312 states and 2977 transitions.
[2024-11-09 18:37:38,899 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2024-11-09 18:37:38,899 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:38,899 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:38,899 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-09 18:37:38,900 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:38,900 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:38,900 INFO  L85        PathProgramCache]: Analyzing trace with hash 1202390601, now seen corresponding path program 1 times
[2024-11-09 18:37:38,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:38,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040314145]
[2024-11-09 18:37:38,901 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:38,901 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:38,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:39,200 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:39,201 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:39,201 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040314145]
[2024-11-09 18:37:39,202 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040314145] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-09 18:37:39,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413909764]
[2024-11-09 18:37:39,203 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:39,203 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-09 18:37:39,204 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-09 18:37:39,206 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)
[2024-11-09 18:37:39,208 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-09 18:37:39,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:39,293 INFO  L255         TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-09 18:37:39,301 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-09 18:37:39,462 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-09 18:37:39,462 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-09 18:37:39,462 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413909764] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:39,463 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-09 18:37:39,463 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-09 18:37:39,463 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234913099]
[2024-11-09 18:37:39,463 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:39,463 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:39,467 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:39,467 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:39,468 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-09 18:37:39,468 INFO  L87              Difference]: Start difference. First operand 2312 states and 2977 transitions. Second operand  has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:39,846 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:39,846 INFO  L93              Difference]: Finished difference Result 4622 states and 5952 transitions.
[2024-11-09 18:37:39,846 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:39,847 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148
[2024-11-09 18:37:39,847 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:39,853 INFO  L225             Difference]: With dead ends: 4622
[2024-11-09 18:37:39,854 INFO  L226             Difference]: Without dead ends: 2312
[2024-11-09 18:37:39,856 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-09 18:37:39,857 INFO  L432           NwaCegarLoop]: 232 mSDtfsCounter, 46 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:39,858 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 252 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-09 18:37:39,860 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2312 states.
[2024-11-09 18:37:39,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312.
[2024-11-09 18:37:39,890 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2312 states, 2311 states have (on average 1.1748160969277368) internal successors, (2715), 2311 states have internal predecessors, (2715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:39,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 2715 transitions.
[2024-11-09 18:37:39,895 INFO  L78                 Accepts]: Start accepts. Automaton has 2312 states and 2715 transitions. Word has length 148
[2024-11-09 18:37:39,896 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:39,896 INFO  L471      AbstractCegarLoop]: Abstraction has 2312 states and 2715 transitions.
[2024-11-09 18:37:39,896 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:39,897 INFO  L276                IsEmpty]: Start isEmpty. Operand 2312 states and 2715 transitions.
[2024-11-09 18:37:39,900 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2024-11-09 18:37:39,900 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:39,900 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:39,914 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-09 18:37:40,101 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-09 18:37:40,101 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:40,101 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:40,102 INFO  L85        PathProgramCache]: Analyzing trace with hash -1031592190, now seen corresponding path program 1 times
[2024-11-09 18:37:40,104 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:40,104 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756785068]
[2024-11-09 18:37:40,104 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:40,104 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:40,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:40,211 INFO  L134       CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:40,211 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:40,211 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756785068]
[2024-11-09 18:37:40,211 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756785068] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:40,211 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:40,212 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-09 18:37:40,212 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490267779]
[2024-11-09 18:37:40,212 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:40,212 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:40,212 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:40,213 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:40,213 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:40,213 INFO  L87              Difference]: Start difference. First operand 2312 states and 2715 transitions. Second operand  has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:40,576 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:40,577 INFO  L93              Difference]: Finished difference Result 5187 states and 6044 transitions.
[2024-11-09 18:37:40,579 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:40,580 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150
[2024-11-09 18:37:40,580 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:40,586 INFO  L225             Difference]: With dead ends: 5187
[2024-11-09 18:37:40,587 INFO  L226             Difference]: Without dead ends: 2310
[2024-11-09 18:37:40,591 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:40,593 INFO  L432           NwaCegarLoop]: 55 mSDtfsCounter, 163 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:40,594 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 63 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-09 18:37:40,597 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2310 states.
[2024-11-09 18:37:40,623 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2309.
[2024-11-09 18:37:40,625 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2309 states, 2308 states have (on average 1.1213171577123051) internal successors, (2588), 2308 states have internal predecessors, (2588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:40,630 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 2588 transitions.
[2024-11-09 18:37:40,630 INFO  L78                 Accepts]: Start accepts. Automaton has 2309 states and 2588 transitions. Word has length 150
[2024-11-09 18:37:40,630 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:40,630 INFO  L471      AbstractCegarLoop]: Abstraction has 2309 states and 2588 transitions.
[2024-11-09 18:37:40,631 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:40,631 INFO  L276                IsEmpty]: Start isEmpty. Operand 2309 states and 2588 transitions.
[2024-11-09 18:37:40,633 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2024-11-09 18:37:40,634 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:40,634 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:40,635 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-09 18:37:40,635 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:40,635 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:40,635 INFO  L85        PathProgramCache]: Analyzing trace with hash -2027946056, now seen corresponding path program 1 times
[2024-11-09 18:37:40,635 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:40,635 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586427198]
[2024-11-09 18:37:40,636 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:40,636 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:40,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:40,858 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:40,858 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:40,859 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586427198]
[2024-11-09 18:37:40,859 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586427198] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:40,859 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:40,859 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-09 18:37:40,859 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274384386]
[2024-11-09 18:37:40,859 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:40,860 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-09 18:37:40,860 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:40,860 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-09 18:37:40,860 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-09 18:37:40,860 INFO  L87              Difference]: Start difference. First operand 2309 states and 2588 transitions. Second operand  has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:41,493 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:41,494 INFO  L93              Difference]: Finished difference Result 5885 states and 6561 transitions.
[2024-11-09 18:37:41,494 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-09 18:37:41,494 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154
[2024-11-09 18:37:41,495 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:41,505 INFO  L225             Difference]: With dead ends: 5885
[2024-11-09 18:37:41,505 INFO  L226             Difference]: Without dead ends: 3578
[2024-11-09 18:37:41,508 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-09 18:37:41,509 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 327 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:41,510 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 154 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-09 18:37:41,513 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3578 states.
[2024-11-09 18:37:41,543 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 2732.
[2024-11-09 18:37:41,546 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2732 states, 2731 states have (on average 1.113877700476016) internal successors, (3042), 2731 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:41,549 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 3042 transitions.
[2024-11-09 18:37:41,550 INFO  L78                 Accepts]: Start accepts. Automaton has 2732 states and 3042 transitions. Word has length 154
[2024-11-09 18:37:41,551 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:41,551 INFO  L471      AbstractCegarLoop]: Abstraction has 2732 states and 3042 transitions.
[2024-11-09 18:37:41,551 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:41,552 INFO  L276                IsEmpty]: Start isEmpty. Operand 2732 states and 3042 transitions.
[2024-11-09 18:37:41,554 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-09 18:37:41,555 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:41,555 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:41,555 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-09 18:37:41,555 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:41,556 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:41,556 INFO  L85        PathProgramCache]: Analyzing trace with hash 1693145405, now seen corresponding path program 1 times
[2024-11-09 18:37:41,556 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:41,556 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374978641]
[2024-11-09 18:37:41,557 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:41,557 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:41,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:41,627 INFO  L134       CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:41,628 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:41,628 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374978641]
[2024-11-09 18:37:41,628 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374978641] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:41,628 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:41,628 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-09 18:37:41,628 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841507466]
[2024-11-09 18:37:41,628 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:41,629 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:41,629 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:41,629 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:41,629 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:41,630 INFO  L87              Difference]: Start difference. First operand 2732 states and 3042 transitions. Second operand  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:41,976 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:41,976 INFO  L93              Difference]: Finished difference Result 5302 states and 5909 transitions.
[2024-11-09 18:37:41,976 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:41,977 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167
[2024-11-09 18:37:41,977 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:41,981 INFO  L225             Difference]: With dead ends: 5302
[2024-11-09 18:37:41,981 INFO  L226             Difference]: Without dead ends: 1723
[2024-11-09 18:37:41,983 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 18:37:41,984 INFO  L432           NwaCegarLoop]: 215 mSDtfsCounter, 118 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:41,984 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 234 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-09 18:37:41,986 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1723 states.
[2024-11-09 18:37:42,002 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723.
[2024-11-09 18:37:42,004 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1723 states, 1722 states have (on average 1.0830429732868758) internal successors, (1865), 1722 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:42,006 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 1865 transitions.
[2024-11-09 18:37:42,007 INFO  L78                 Accepts]: Start accepts. Automaton has 1723 states and 1865 transitions. Word has length 167
[2024-11-09 18:37:42,007 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:42,007 INFO  L471      AbstractCegarLoop]: Abstraction has 1723 states and 1865 transitions.
[2024-11-09 18:37:42,007 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:42,007 INFO  L276                IsEmpty]: Start isEmpty. Operand 1723 states and 1865 transitions.
[2024-11-09 18:37:42,009 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 189
[2024-11-09 18:37:42,009 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:42,010 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:42,010 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-09 18:37:42,010 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:42,010 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:42,010 INFO  L85        PathProgramCache]: Analyzing trace with hash 2059462440, now seen corresponding path program 1 times
[2024-11-09 18:37:42,010 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:42,011 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530593621]
[2024-11-09 18:37:42,011 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:42,011 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:42,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:42,252 INFO  L134       CoverageAnalysis]: Checked inductivity of 68 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:42,253 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:42,254 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530593621]
[2024-11-09 18:37:42,254 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530593621] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:42,254 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 18:37:42,254 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-09 18:37:42,254 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724650330]
[2024-11-09 18:37:42,255 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:42,255 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-09 18:37:42,255 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:42,255 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-09 18:37:42,256 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-09 18:37:42,256 INFO  L87              Difference]: Start difference. First operand 1723 states and 1865 transitions. Second operand  has 4 states, 4 states have (on average 47.0) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:42,632 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:42,632 INFO  L93              Difference]: Finished difference Result 3589 states and 3883 transitions.
[2024-11-09 18:37:42,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-09 18:37:42,633 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 47.0) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188
[2024-11-09 18:37:42,633 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:42,637 INFO  L225             Difference]: With dead ends: 3589
[2024-11-09 18:37:42,637 INFO  L226             Difference]: Without dead ends: 1868
[2024-11-09 18:37:42,639 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-09 18:37:42,639 INFO  L432           NwaCegarLoop]: 77 mSDtfsCounter, 104 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:42,640 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 113 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-09 18:37:42,641 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1868 states.
[2024-11-09 18:37:42,658 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1864.
[2024-11-09 18:37:42,660 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1864 states, 1863 states have (on average 1.0783682232957594) internal successors, (2009), 1863 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:42,662 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 2009 transitions.
[2024-11-09 18:37:42,663 INFO  L78                 Accepts]: Start accepts. Automaton has 1864 states and 2009 transitions. Word has length 188
[2024-11-09 18:37:42,663 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:42,663 INFO  L471      AbstractCegarLoop]: Abstraction has 1864 states and 2009 transitions.
[2024-11-09 18:37:42,663 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 47.0) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:42,663 INFO  L276                IsEmpty]: Start isEmpty. Operand 1864 states and 2009 transitions.
[2024-11-09 18:37:42,665 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 220
[2024-11-09 18:37:42,666 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:42,666 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:42,666 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-09 18:37:42,666 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:42,666 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:42,666 INFO  L85        PathProgramCache]: Analyzing trace with hash 1787754662, now seen corresponding path program 1 times
[2024-11-09 18:37:42,666 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:42,667 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039235016]
[2024-11-09 18:37:42,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:42,667 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:42,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:42,929 INFO  L134       CoverageAnalysis]: Checked inductivity of 129 backedges. 69 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:42,929 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:42,929 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039235016]
[2024-11-09 18:37:42,929 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039235016] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-09 18:37:42,929 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467072262]
[2024-11-09 18:37:42,930 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:42,930 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-09 18:37:42,930 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-09 18:37:42,931 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)
[2024-11-09 18:37:42,933 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-09 18:37:43,014 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:43,015 INFO  L255         TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-09 18:37:43,019 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-09 18:37:43,133 INFO  L134       CoverageAnalysis]: Checked inductivity of 129 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-11-09 18:37:43,134 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-09 18:37:43,134 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [467072262] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:43,134 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-09 18:37:43,134 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-09 18:37:43,134 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878630630]
[2024-11-09 18:37:43,134 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:43,135 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:43,135 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:43,135 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:43,135 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-09 18:37:43,135 INFO  L87              Difference]: Start difference. First operand 1864 states and 2009 transitions. Second operand  has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:43,441 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:43,441 INFO  L93              Difference]: Finished difference Result 3727 states and 4017 transitions.
[2024-11-09 18:37:43,441 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:43,441 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219
[2024-11-09 18:37:43,442 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:43,445 INFO  L225             Difference]: With dead ends: 3727
[2024-11-09 18:37:43,445 INFO  L226             Difference]: Without dead ends: 1724
[2024-11-09 18:37:43,447 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-09 18:37:43,447 INFO  L432           NwaCegarLoop]: 208 mSDtfsCounter, 44 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:43,448 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 233 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-09 18:37:43,449 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1724 states.
[2024-11-09 18:37:43,465 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1578.
[2024-11-09 18:37:43,466 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1578 states, 1577 states have (on average 1.0634115409004439) internal successors, (1677), 1577 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:43,469 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 1677 transitions.
[2024-11-09 18:37:43,469 INFO  L78                 Accepts]: Start accepts. Automaton has 1578 states and 1677 transitions. Word has length 219
[2024-11-09 18:37:43,469 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:43,469 INFO  L471      AbstractCegarLoop]: Abstraction has 1578 states and 1677 transitions.
[2024-11-09 18:37:43,470 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:43,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 1578 states and 1677 transitions.
[2024-11-09 18:37:43,472 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 253
[2024-11-09 18:37:43,473 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 18:37:43,473 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:43,487 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-09 18:37:43,673 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,SelfDestructingSolverStorable9
[2024-11-09 18:37:43,674 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-09 18:37:43,674 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 18:37:43,674 INFO  L85        PathProgramCache]: Analyzing trace with hash 36755137, now seen corresponding path program 1 times
[2024-11-09 18:37:43,675 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 18:37:43,675 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599210243]
[2024-11-09 18:37:43,675 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:43,675 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 18:37:43,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:44,018 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 96 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 18:37:44,018 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 18:37:44,018 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599210243]
[2024-11-09 18:37:44,018 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599210243] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-09 18:37:44,018 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274162714]
[2024-11-09 18:37:44,018 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 18:37:44,018 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-09 18:37:44,018 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-09 18:37:44,020 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)
[2024-11-09 18:37:44,022 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-09 18:37:44,111 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 18:37:44,113 INFO  L255         TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-09 18:37:44,116 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-09 18:37:44,369 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked.
[2024-11-09 18:37:44,369 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-09 18:37:44,369 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274162714] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 18:37:44,370 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-09 18:37:44,370 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6
[2024-11-09 18:37:44,370 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324646778]
[2024-11-09 18:37:44,370 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 18:37:44,370 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 18:37:44,370 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 18:37:44,371 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 18:37:44,371 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2024-11-09 18:37:44,371 INFO  L87              Difference]: Start difference. First operand 1578 states and 1677 transitions. Second operand  has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:44,689 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 18:37:44,690 INFO  L93              Difference]: Finished difference Result 3714 states and 3961 transitions.
[2024-11-09 18:37:44,690 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 18:37:44,690 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 252
[2024-11-09 18:37:44,691 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 18:37:44,691 INFO  L225             Difference]: With dead ends: 3714
[2024-11-09 18:37:44,691 INFO  L226             Difference]: Without dead ends: 0
[2024-11-09 18:37:44,693 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2024-11-09 18:37:44,694 INFO  L432           NwaCegarLoop]: 32 mSDtfsCounter, 64 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-09 18:37:44,694 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 38 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-09 18:37:44,694 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-09 18:37:44,695 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-09 18:37:44,695 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:44,695 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-09 18:37:44,695 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 252
[2024-11-09 18:37:44,695 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-09 18:37:44,695 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-09 18:37:44,695 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-09 18:37:44,696 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-09 18:37:44,696 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-09 18:37:44,698 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-09 18:37:44,711 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-09 18:37:44,898 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-09 18:37:44,902 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 18:37:44,903 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-09 18:37:45,187 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-09 18:37:45,200 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:37:45 BoogieIcfgContainer
[2024-11-09 18:37:45,200 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-09 18:37:45,201 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-09 18:37:45,201 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-09 18:37:45,201 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-09 18:37:45,201 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:37:35" (3/4) ...
[2024-11-09 18:37:45,203 INFO  L143         WitnessPrinter]: Generating witness for correct program
[2024-11-09 18:37:45,222 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2024-11-09 18:37:45,223 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-09 18:37:45,223 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-09 18:37:45,224 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-09 18:37:45,346 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-09 18:37:45,347 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-09 18:37:45,347 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-09 18:37:45,348 INFO  L158              Benchmark]: Toolchain (without parser) took 10929.09ms. Allocated memory was 188.7MB in the beginning and 346.0MB in the end (delta: 157.3MB). Free memory was 157.4MB in the beginning and 299.6MB in the end (delta: -142.2MB). Peak memory consumption was 212.1MB. Max. memory is 16.1GB.
[2024-11-09 18:37:45,348 INFO  L158              Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-09 18:37:45,348 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 459.39ms. Allocated memory is still 188.7MB. Free memory was 157.2MB in the beginning and 132.1MB in the end (delta: 25.1MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB.
[2024-11-09 18:37:45,348 INFO  L158              Benchmark]: Boogie Procedure Inliner took 59.12ms. Allocated memory is still 188.7MB. Free memory was 132.1MB in the beginning and 126.6MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-09 18:37:45,348 INFO  L158              Benchmark]: Boogie Preprocessor took 74.20ms. Allocated memory is still 188.7MB. Free memory was 126.6MB in the beginning and 121.6MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-11-09 18:37:45,349 INFO  L158              Benchmark]: IcfgBuilder took 950.62ms. Allocated memory is still 188.7MB. Free memory was 121.6MB in the beginning and 102.4MB in the end (delta: 19.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB.
[2024-11-09 18:37:45,349 INFO  L158              Benchmark]: TraceAbstraction took 9234.10ms. Allocated memory was 188.7MB in the beginning and 346.0MB in the end (delta: 157.3MB). Free memory was 101.4MB in the beginning and 107.9MB in the end (delta: -6.6MB). Peak memory consumption was 152.8MB. Max. memory is 16.1GB.
[2024-11-09 18:37:45,349 INFO  L158              Benchmark]: Witness Printer took 146.65ms. Allocated memory is still 346.0MB. Free memory was 107.9MB in the beginning and 299.6MB in the end (delta: -191.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-11-09 18:37:45,350 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 459.39ms. Allocated memory is still 188.7MB. Free memory was 157.2MB in the beginning and 132.1MB in the end (delta: 25.1MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 59.12ms. Allocated memory is still 188.7MB. Free memory was 132.1MB in the beginning and 126.6MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 74.20ms. Allocated memory is still 188.7MB. Free memory was 126.6MB in the beginning and 121.6MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
 * IcfgBuilder took 950.62ms. Allocated memory is still 188.7MB. Free memory was 121.6MB in the beginning and 102.4MB in the end (delta: 19.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB.
 * TraceAbstraction took 9234.10ms. Allocated memory was 188.7MB in the beginning and 346.0MB in the end (delta: 157.3MB). Free memory was 101.4MB in the beginning and 107.9MB in the end (delta: -6.6MB). Peak memory consumption was 152.8MB. Max. memory is 16.1GB.
 * Witness Printer took 146.65ms. Allocated memory is still 346.0MB. Free memory was 107.9MB in the beginning and 299.6MB in the end (delta: -191.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 533]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1479 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1479 mSDsluCounter, 1523 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 273 mSDsCounter, 660 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4720 IncrementalHoareTripleChecker+Invalid, 5380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 660 mSolverCounterUnsat, 1250 mSDtfsCounter, 4720 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 653 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2732occurred in iteration=7, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1005 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 2436 NumberOfCodeBlocks, 2436 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2422 ConstructedInterpolants, 0 QuantifiedInterpolants, 11591 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1009 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 809/991 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 616]: Location Invariant
    Derived location invariant: null
RESULT: Ultimate proved your program to be correct!
[2024-11-09 18:37:45,378 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE