./Ultimate.py --spec /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/properties/unreach-call.prp --file /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.10.i --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/mnt/thread-witnesses/replication/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /mnt/thread-witnesses/replication/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /mnt/thread-witnesses/replication/UAutomizer-linux/data -tc /mnt/thread-witnesses/replication/UAutomizer-linux/config/AutomizerReach.xml -i /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.10.i -s /mnt/thread-witnesses/replication/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /mnt/thread-witnesses/replication/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 55b5907667de8828dab419c82ab626d27191191343b82d619fed89d8923b6a77
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-01-31 08:39:03,858 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-01-31 08:39:03,860 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-01-31 08:39:03,909 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-01-31 08:39:03,909 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-01-31 08:39:03,916 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-01-31 08:39:03,917 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-01-31 08:39:03,919 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-01-31 08:39:03,920 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-01-31 08:39:03,924 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-01-31 08:39:03,925 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-01-31 08:39:03,926 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-01-31 08:39:03,926 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-01-31 08:39:03,928 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-01-31 08:39:03,929 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-01-31 08:39:03,930 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-01-31 08:39:03,931 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-01-31 08:39:03,931 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-01-31 08:39:03,932 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-01-31 08:39:03,936 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-01-31 08:39:03,937 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-01-31 08:39:03,938 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-01-31 08:39:03,939 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-01-31 08:39:03,939 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-01-31 08:39:03,959 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-01-31 08:39:03,959 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-01-31 08:39:03,959 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-01-31 08:39:03,960 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-01-31 08:39:03,961 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-01-31 08:39:03,962 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-01-31 08:39:03,962 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-01-31 08:39:03,962 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-01-31 08:39:03,964 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-01-31 08:39:03,964 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-01-31 08:39:03,965 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-01-31 08:39:03,965 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-01-31 08:39:03,966 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-01-31 08:39:03,966 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-01-31 08:39:03,966 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-01-31 08:39:03,967 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-01-31 08:39:03,967 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-01-31 08:39:03,969 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/thread-witnesses/replication/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2023-01-31 08:39:04,004 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-01-31 08:39:04,004 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-01-31 08:39:04,005 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-01-31 08:39:04,005 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-01-31 08:39:04,006 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-01-31 08:39:04,006 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-01-31 08:39:04,007 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-01-31 08:39:04,007 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-01-31 08:39:04,007 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-01-31 08:39:04,007 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-01-31 08:39:04,008 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-01-31 08:39:04,008 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-01-31 08:39:04,008 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-01-31 08:39:04,009 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-01-31 08:39:04,009 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-01-31 08:39:04,009 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-01-31 08:39:04,009 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-01-31 08:39:04,009 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-01-31 08:39:04,010 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-01-31 08:39:04,010 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-01-31 08:39:04,010 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-01-31 08:39:04,010 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-01-31 08:39:04,023 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-01-31 08:39:04,024 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-01-31 08:39:04,024 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-01-31 08:39:04,024 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-01-31 08:39:04,024 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-01-31 08:39:04,025 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-01-31 08:39:04,025 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-01-31 08:39:04,025 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-01-31 08:39:04,025 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-01-31 08:39:04,026 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-01-31 08:39:04,026 INFO  L138        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:/mnt/thread-witnesses/replication/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 -> /mnt/thread-witnesses/replication/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55b5907667de8828dab419c82ab626d27191191343b82d619fed89d8923b6a77
[2023-01-31 08:39:04,382 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-01-31 08:39:04,406 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-01-31 08:39:04,408 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-01-31 08:39:04,409 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-01-31 08:39:04,409 INFO  L275        PluginConnector]: CDTParser initialized
[2023-01-31 08:39:04,410 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.10.i
[2023-01-31 08:39:06,036 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-01-31 08:39:06,295 INFO  L351              CDTParser]: Found 1 translation units.
[2023-01-31 08:39:06,296 INFO  L172              CDTParser]: Scanning /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.10.i
[2023-01-31 08:39:06,300 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/thread-witnesses/replication/UAutomizer-linux/data/0b73729db/9e3bca1f504c4941b0892182acd16c64/FLAG8648afa8f
[2023-01-31 08:39:06,315 INFO  L402              CDTParser]: Successfully deleted /mnt/thread-witnesses/replication/UAutomizer-linux/data/0b73729db/9e3bca1f504c4941b0892182acd16c64
[2023-01-31 08:39:06,318 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-01-31 08:39:06,327 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-01-31 08:39:06,336 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-01-31 08:39:06,336 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-01-31 08:39:06,340 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-01-31 08:39:06,344 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,344 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525ddce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06, skipping insertion in model container
[2023-01-31 08:39:06,345 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,363 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-01-31 08:39:06,389 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-01-31 08:39:06,611 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.10.i[813,826]
[2023-01-31 08:39:06,622 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-01-31 08:39:06,640 INFO  L203         MainTranslator]: Completed pre-run
[2023-01-31 08:39:06,648 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.10.i[813,826]
[2023-01-31 08:39:06,653 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-01-31 08:39:06,664 INFO  L208         MainTranslator]: Completed translation
[2023-01-31 08:39:06,665 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06 WrapperNode
[2023-01-31 08:39:06,666 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-01-31 08:39:06,667 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-01-31 08:39:06,667 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-01-31 08:39:06,667 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-01-31 08:39:06,672 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,678 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,695 INFO  L138                Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21
[2023-01-31 08:39:06,695 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-01-31 08:39:06,697 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-01-31 08:39:06,697 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-01-31 08:39:06,697 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-01-31 08:39:06,703 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,704 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,705 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,705 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,708 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,712 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,715 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,716 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,722 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-01-31 08:39:06,724 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-01-31 08:39:06,729 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-01-31 08:39:06,730 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-01-31 08:39:06,731 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (1/1) ...
[2023-01-31 08:39:06,741 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-01-31 08:39:06,756 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/thread-witnesses/replication/UAutomizer-linux/z3
[2023-01-31 08:39:06,772 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /mnt/thread-witnesses/replication/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-01-31 08:39:06,804 INFO  L327       MonitoredProcess]: [MP /mnt/thread-witnesses/replication/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-01-31 08:39:06,833 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-01-31 08:39:06,834 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-01-31 08:39:06,834 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-01-31 08:39:06,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-01-31 08:39:06,834 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-01-31 08:39:06,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-01-31 08:39:06,911 INFO  L235             CfgBuilder]: Building ICFG
[2023-01-31 08:39:06,913 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-01-31 08:39:07,064 INFO  L276             CfgBuilder]: Performing block encoding
[2023-01-31 08:39:07,079 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-01-31 08:39:07,087 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2023-01-31 08:39:07,089 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:39:07 BoogieIcfgContainer
[2023-01-31 08:39:07,089 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-01-31 08:39:07,091 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-01-31 08:39:07,091 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-01-31 08:39:07,093 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-01-31 08:39:07,106 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 08:39:06" (1/3) ...
[2023-01-31 08:39:07,107 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f902eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:39:07, skipping insertion in model container
[2023-01-31 08:39:07,107 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:06" (2/3) ...
[2023-01-31 08:39:07,108 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f902eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:39:07, skipping insertion in model container
[2023-01-31 08:39:07,108 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:39:07" (3/3) ...
[2023-01-31 08:39:07,109 INFO  L112   eAbstractionObserver]: Analyzing ICFG mine-tutorial-ex4.10.i
[2023-01-31 08:39:07,142 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-01-31 08:39:07,143 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-01-31 08:39:07,257 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-01-31 08:39:07,263 INFO  L357      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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@47efa110, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-01-31 08:39:07,264 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-01-31 08:39:07,267 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2023-01-31 08:39:07,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-01-31 08:39:07,278 INFO  L187           NwaCegarLoop]: Found error trace
[2023-01-31 08:39:07,278 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-01-31 08:39:07,284 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-01-31 08:39:07,290 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-31 08:39:07,302 INFO  L85        PathProgramCache]: Analyzing trace with hash 1816030752, now seen corresponding path program 1 times
[2023-01-31 08:39:07,317 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-31 08:39:07,317 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484061249]
[2023-01-31 08:39:07,318 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-31 08:39:07,318 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-31 08:39:07,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:07,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-01-31 08:39:07,583 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-31 08:39:07,584 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484061249]
[2023-01-31 08:39:07,584 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484061249] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-31 08:39:07,585 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-31 08:39:07,585 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-01-31 08:39:07,586 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529729501]
[2023-01-31 08:39:07,586 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-31 08:39:07,589 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-01-31 08:39:07,600 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-31 08:39:07,624 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-01-31 08:39:07,625 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-01-31 08:39:07,627 INFO  L87              Difference]: Start difference. First operand  has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand  has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-01-31 08:39:07,654 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-01-31 08:39:07,654 INFO  L93              Difference]: Finished difference Result 34 states and 48 transitions.
[2023-01-31 08:39:07,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-01-31 08:39:07,656 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2023-01-31 08:39:07,657 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-01-31 08:39:07,662 INFO  L225             Difference]: With dead ends: 34
[2023-01-31 08:39:07,662 INFO  L226             Difference]: Without dead ends: 14
[2023-01-31 08:39:07,681 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-01-31 08:39:07,691 INFO  L413           NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-01-31 08:39:07,692 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-01-31 08:39:07,721 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2023-01-31 08:39:07,740 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2023-01-31 08:39:07,743 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14 states, 8 states have (on average 1.25) internal successors, (10), 10 states have internal predecessors, (10), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-01-31 08:39:07,745 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions.
[2023-01-31 08:39:07,746 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 7
[2023-01-31 08:39:07,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-01-31 08:39:07,760 INFO  L495      AbstractCegarLoop]: Abstraction has 14 states and 17 transitions.
[2023-01-31 08:39:07,760 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-01-31 08:39:07,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions.
[2023-01-31 08:39:07,762 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-01-31 08:39:07,763 INFO  L187           NwaCegarLoop]: Found error trace
[2023-01-31 08:39:07,763 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-01-31 08:39:07,763 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-01-31 08:39:07,764 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-01-31 08:39:07,770 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-31 08:39:07,770 INFO  L85        PathProgramCache]: Analyzing trace with hash 1809566105, now seen corresponding path program 1 times
[2023-01-31 08:39:07,771 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-31 08:39:07,771 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006522132]
[2023-01-31 08:39:07,772 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-31 08:39:07,772 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-31 08:39:07,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:07,889 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-01-31 08:39:07,890 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-31 08:39:07,890 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006522132]
[2023-01-31 08:39:07,890 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006522132] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-31 08:39:07,890 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-31 08:39:07,891 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-01-31 08:39:07,891 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688966129]
[2023-01-31 08:39:07,891 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-31 08:39:07,892 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-01-31 08:39:07,893 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-31 08:39:07,894 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-01-31 08:39:07,894 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-01-31 08:39:07,894 INFO  L87              Difference]: Start difference. First operand 14 states and 17 transitions. Second operand  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-01-31 08:39:07,943 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-01-31 08:39:07,943 INFO  L93              Difference]: Finished difference Result 25 states and 30 transitions.
[2023-01-31 08:39:07,943 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-01-31 08:39:07,944 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2023-01-31 08:39:07,944 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-01-31 08:39:07,953 INFO  L225             Difference]: With dead ends: 25
[2023-01-31 08:39:07,953 INFO  L226             Difference]: Without dead ends: 17
[2023-01-31 08:39:07,954 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-01-31 08:39:07,956 INFO  L413           NwaCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-01-31 08:39:07,964 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-01-31 08:39:07,966 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2023-01-31 08:39:07,981 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15.
[2023-01-31 08:39:07,983 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-01-31 08:39:07,987 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions.
[2023-01-31 08:39:07,988 INFO  L78                 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 7
[2023-01-31 08:39:07,988 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-01-31 08:39:07,988 INFO  L495      AbstractCegarLoop]: Abstraction has 15 states and 18 transitions.
[2023-01-31 08:39:07,989 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-01-31 08:39:07,989 INFO  L276                IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions.
[2023-01-31 08:39:07,990 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-01-31 08:39:07,990 INFO  L187           NwaCegarLoop]: Found error trace
[2023-01-31 08:39:07,992 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-01-31 08:39:07,992 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-01-31 08:39:07,993 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-01-31 08:39:07,993 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-31 08:39:07,997 INFO  L85        PathProgramCache]: Analyzing trace with hash 1811293983, now seen corresponding path program 1 times
[2023-01-31 08:39:07,999 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-31 08:39:08,000 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192718669]
[2023-01-31 08:39:08,000 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-31 08:39:08,000 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-31 08:39:08,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:08,219 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-01-31 08:39:08,223 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-31 08:39:08,223 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192718669]
[2023-01-31 08:39:08,224 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192718669] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-31 08:39:08,224 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-31 08:39:08,224 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-01-31 08:39:08,225 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850471792]
[2023-01-31 08:39:08,225 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-31 08:39:08,226 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-01-31 08:39:08,226 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-31 08:39:08,227 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-01-31 08:39:08,227 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-01-31 08:39:08,228 INFO  L87              Difference]: Start difference. First operand 15 states and 18 transitions. Second operand  has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-01-31 08:39:08,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-01-31 08:39:08,306 INFO  L93              Difference]: Finished difference Result 21 states and 23 transitions.
[2023-01-31 08:39:08,306 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-01-31 08:39:08,307 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2023-01-31 08:39:08,307 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-01-31 08:39:08,307 INFO  L225             Difference]: With dead ends: 21
[2023-01-31 08:39:08,308 INFO  L226             Difference]: Without dead ends: 19
[2023-01-31 08:39:08,308 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-01-31 08:39:08,309 INFO  L413           NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-01-31 08:39:08,317 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 28 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-01-31 08:39:08,318 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2023-01-31 08:39:08,320 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2023-01-31 08:39:08,320 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-01-31 08:39:08,321 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2023-01-31 08:39:08,325 INFO  L78                 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 7
[2023-01-31 08:39:08,326 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-01-31 08:39:08,326 INFO  L495      AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2023-01-31 08:39:08,327 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-01-31 08:39:08,327 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2023-01-31 08:39:08,328 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2023-01-31 08:39:08,328 INFO  L187           NwaCegarLoop]: Found error trace
[2023-01-31 08:39:08,328 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-01-31 08:39:08,328 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-01-31 08:39:08,329 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-01-31 08:39:08,329 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-31 08:39:08,331 INFO  L85        PathProgramCache]: Analyzing trace with hash -461769827, now seen corresponding path program 1 times
[2023-01-31 08:39:08,331 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-31 08:39:08,331 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737167675]
[2023-01-31 08:39:08,332 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-31 08:39:08,332 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-31 08:39:08,341 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:08,517 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-01-31 08:39:08,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:08,523 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-01-31 08:39:08,523 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-31 08:39:08,524 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737167675]
[2023-01-31 08:39:08,524 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737167675] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-31 08:39:08,524 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-31 08:39:08,524 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-01-31 08:39:08,525 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3798219]
[2023-01-31 08:39:08,525 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-31 08:39:08,525 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-01-31 08:39:08,526 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-31 08:39:08,526 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-01-31 08:39:08,531 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-01-31 08:39:08,531 INFO  L87              Difference]: Start difference. First operand 19 states and 21 transitions. Second operand  has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-01-31 08:39:08,627 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-01-31 08:39:08,631 INFO  L93              Difference]: Finished difference Result 41 states and 46 transitions.
[2023-01-31 08:39:08,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-01-31 08:39:08,632 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13
[2023-01-31 08:39:08,632 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-01-31 08:39:08,633 INFO  L225             Difference]: With dead ends: 41
[2023-01-31 08:39:08,633 INFO  L226             Difference]: Without dead ends: 33
[2023-01-31 08:39:08,633 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-01-31 08:39:08,635 INFO  L413           NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-01-31 08:39:08,635 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 42 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-01-31 08:39:08,636 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2023-01-31 08:39:08,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31.
[2023-01-31 08:39:08,660 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2023-01-31 08:39:08,661 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions.
[2023-01-31 08:39:08,661 INFO  L78                 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 13
[2023-01-31 08:39:08,661 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-01-31 08:39:08,661 INFO  L495      AbstractCegarLoop]: Abstraction has 31 states and 33 transitions.
[2023-01-31 08:39:08,661 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-01-31 08:39:08,662 INFO  L276                IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions.
[2023-01-31 08:39:08,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2023-01-31 08:39:08,662 INFO  L187           NwaCegarLoop]: Found error trace
[2023-01-31 08:39:08,663 INFO  L195           NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1]
[2023-01-31 08:39:08,663 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-01-31 08:39:08,663 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-01-31 08:39:08,664 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-31 08:39:08,664 INFO  L85        PathProgramCache]: Analyzing trace with hash -973345769, now seen corresponding path program 1 times
[2023-01-31 08:39:08,664 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-31 08:39:08,664 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324339171]
[2023-01-31 08:39:08,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-31 08:39:08,664 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-31 08:39:08,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:08,849 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-01-31 08:39:08,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:08,859 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2023-01-31 08:39:08,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:08,867 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2023-01-31 08:39:08,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:08,887 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2023-01-31 08:39:08,889 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-31 08:39:08,889 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324339171]
[2023-01-31 08:39:08,890 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324339171] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-31 08:39:08,890 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-31 08:39:08,890 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-01-31 08:39:08,890 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011626457]
[2023-01-31 08:39:08,891 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-31 08:39:08,892 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-01-31 08:39:08,892 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-31 08:39:08,892 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-01-31 08:39:08,893 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-01-31 08:39:08,893 INFO  L87              Difference]: Start difference. First operand 31 states and 33 transitions. Second operand  has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2023-01-31 08:39:08,978 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-01-31 08:39:08,979 INFO  L93              Difference]: Finished difference Result 37 states and 38 transitions.
[2023-01-31 08:39:08,979 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-01-31 08:39:08,980 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25
[2023-01-31 08:39:08,980 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-01-31 08:39:08,981 INFO  L225             Difference]: With dead ends: 37
[2023-01-31 08:39:08,981 INFO  L226             Difference]: Without dead ends: 32
[2023-01-31 08:39:08,982 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-01-31 08:39:08,984 INFO  L413           NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-01-31 08:39:08,987 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 41 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-01-31 08:39:08,990 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2023-01-31 08:39:08,994 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2023-01-31 08:39:08,996 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2023-01-31 08:39:08,997 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions.
[2023-01-31 08:39:08,998 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 25
[2023-01-31 08:39:08,998 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-01-31 08:39:09,001 INFO  L495      AbstractCegarLoop]: Abstraction has 32 states and 32 transitions.
[2023-01-31 08:39:09,002 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2023-01-31 08:39:09,005 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions.
[2023-01-31 08:39:09,005 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2023-01-31 08:39:09,006 INFO  L187           NwaCegarLoop]: Found error trace
[2023-01-31 08:39:09,006 INFO  L195           NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1]
[2023-01-31 08:39:09,006 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-01-31 08:39:09,006 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-01-31 08:39:09,007 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-31 08:39:09,007 INFO  L85        PathProgramCache]: Analyzing trace with hash 1851284109, now seen corresponding path program 1 times
[2023-01-31 08:39:09,007 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-31 08:39:09,008 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542893697]
[2023-01-31 08:39:09,008 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-31 08:39:09,008 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-31 08:39:09,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:09,165 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-01-31 08:39:09,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:09,183 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2023-01-31 08:39:09,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:09,192 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2023-01-31 08:39:09,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:09,197 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-01-31 08:39:09,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:09,203 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2023-01-31 08:39:09,203 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-31 08:39:09,203 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542893697]
[2023-01-31 08:39:09,203 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542893697] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-31 08:39:09,204 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-31 08:39:09,204 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-01-31 08:39:09,204 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995514890]
[2023-01-31 08:39:09,204 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-31 08:39:09,204 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-01-31 08:39:09,205 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-31 08:39:09,206 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-01-31 08:39:09,206 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-01-31 08:39:09,206 INFO  L87              Difference]: Start difference. First operand 32 states and 32 transitions. Second operand  has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-01-31 08:39:09,254 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-01-31 08:39:09,254 INFO  L93              Difference]: Finished difference Result 32 states and 32 transitions.
[2023-01-31 08:39:09,254 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-01-31 08:39:09,254 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31
[2023-01-31 08:39:09,255 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-01-31 08:39:09,255 INFO  L225             Difference]: With dead ends: 32
[2023-01-31 08:39:09,267 INFO  L226             Difference]: Without dead ends: 0
[2023-01-31 08:39:09,268 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-01-31 08:39:09,269 INFO  L413           NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-01-31 08:39:09,269 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 37 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-01-31 08:39:09,269 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-01-31 08:39:09,270 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-01-31 08:39:09,270 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)
[2023-01-31 08:39:09,270 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-01-31 08:39:09,270 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31
[2023-01-31 08:39:09,270 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-01-31 08:39:09,271 INFO  L495      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-01-31 08:39:09,271 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-01-31 08:39:09,271 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-01-31 08:39:09,271 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2023-01-31 08:39:09,273 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-01-31 08:39:09,283 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-01-31 08:39:09,285 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-01-31 08:39:09,372 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-01-31 08:39:09,373 INFO  L899   garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2023-01-31 08:39:09,373 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2023-01-31 08:39:09,373 INFO  L899   garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed.
[2023-01-31 08:39:09,373 INFO  L895   garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~v~0#1| 52) (<= 1 |ULTIMATE.start_main_~v~0#1|))
[2023-01-31 08:39:09,373 INFO  L895   garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~v~0#1| 52) (<= 1 |ULTIMATE.start_main_~v~0#1|))
[2023-01-31 08:39:09,374 INFO  L895   garLoopResultBuilder]: At program point L19-1(lines 16 20) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~v~0#1| 52) (<= 1 |ULTIMATE.start_main_~v~0#1|))
[2023-01-31 08:39:09,374 INFO  L895   garLoopResultBuilder]: At program point L17(line 17) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~v~0#1| 50) (<= 1 |ULTIMATE.start_main_~v~0#1|))
[2023-01-31 08:39:09,374 INFO  L899   garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed.
[2023-01-31 08:39:09,374 INFO  L895   garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (< 50 |ULTIMATE.start_main_~v~0#1|) (<= |ULTIMATE.start_main_~v~0#1| 52))
[2023-01-31 08:39:09,374 INFO  L899   garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-01-31 08:39:09,375 INFO  L902   garLoopResultBuilder]: At program point main_returnLabel#1(lines 14 24) the Hoare annotation is: true
[2023-01-31 08:39:09,375 INFO  L899   garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed.
[2023-01-31 08:39:09,375 INFO  L899   garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed.
[2023-01-31 08:39:09,375 INFO  L899   garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed.
[2023-01-31 08:39:09,375 INFO  L899   garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(line 13) no Hoare annotation was computed.
[2023-01-31 08:39:09,375 INFO  L902   garLoopResultBuilder]: At program point $Ultimate##0(line 13) the Hoare annotation is: true
[2023-01-31 08:39:09,376 INFO  L899   garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed.
[2023-01-31 08:39:09,378 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2023-01-31 08:39:09,380 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-01-31 08:39:09,408 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 08:39:09 BoogieIcfgContainer
[2023-01-31 08:39:09,408 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-01-31 08:39:09,409 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-01-31 08:39:09,409 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2023-01-31 08:39:09,409 INFO  L275        PluginConnector]: Witness Printer initialized
[2023-01-31 08:39:09,412 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:39:07" (3/4) ...
[2023-01-31 08:39:09,414 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2023-01-31 08:39:09,419 INFO  L361     RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2023-01-31 08:39:09,436 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2023-01-31 08:39:09,436 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-01-31 08:39:09,436 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2023-01-31 08:39:09,436 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-01-31 08:39:09,483 INFO  L141         WitnessManager]: Wrote witness to /mnt/thread-witnesses/replication/UAutomizer-linux/witness.graphml
[2023-01-31 08:39:09,483 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-01-31 08:39:09,483 INFO  L158              Benchmark]: Toolchain (without parser) took 3156.82ms. Allocated memory was 42.1MB in the beginning and 51.2MB in the end (delta: 9.0MB). Free memory was 14.9MB in the beginning and 27.0MB in the end (delta: -12.1MB). Peak memory consumption was 8.8MB. Max. memory is 15.6GB.
[2023-01-31 08:39:09,484 INFO  L158              Benchmark]: CDTParser took 0.39ms. Allocated memory is still 37.8MB. Free memory was 13.7MB in the beginning and 13.7MB in the end (delta: 42.3kB). Peak memory consumption was 42.3kB. Max. memory is 15.6GB.
[2023-01-31 08:39:09,484 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 329.99ms. Allocated memory is still 42.1MB. Free memory was 14.7MB in the beginning and 15.8MB in the end (delta: -1.1MB). Peak memory consumption was 4.9MB. Max. memory is 15.6GB.
[2023-01-31 08:39:09,484 INFO  L158              Benchmark]: Boogie Procedure Inliner took 28.81ms. Allocated memory is still 42.1MB. Free memory was 15.8MB in the beginning and 14.5MB in the end (delta: 1.3MB). Peak memory consumption was 1.3MB. Max. memory is 15.6GB.
[2023-01-31 08:39:09,485 INFO  L158              Benchmark]: Boogie Preprocessor took 25.45ms. Allocated memory is still 42.1MB. Free memory was 14.5MB in the beginning and 13.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 15.6GB.
[2023-01-31 08:39:09,485 INFO  L158              Benchmark]: RCFGBuilder took 365.76ms. Allocated memory is still 42.1MB. Free memory was 13.3MB in the beginning and 15.5MB in the end (delta: -2.2MB). Peak memory consumption was 4.7MB. Max. memory is 15.6GB.
[2023-01-31 08:39:09,486 INFO  L158              Benchmark]: TraceAbstraction took 2317.88ms. Allocated memory was 42.1MB in the beginning and 51.2MB in the end (delta: 9.0MB). Free memory was 14.8MB in the beginning and 15.2MB in the end (delta: -346.5kB). Peak memory consumption was 8.7MB. Max. memory is 15.6GB.
[2023-01-31 08:39:09,486 INFO  L158              Benchmark]: Witness Printer took 74.22ms. Allocated memory is still 51.2MB. Free memory was 15.2MB in the beginning and 27.0MB in the end (delta: -11.9MB). Peak memory consumption was 37.5kB. Max. memory is 15.6GB.
[2023-01-31 08:39:09,488 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.39ms. Allocated memory is still 37.8MB. Free memory was 13.7MB in the beginning and 13.7MB in the end (delta: 42.3kB). Peak memory consumption was 42.3kB. Max. memory is 15.6GB.
 * CACSL2BoogieTranslator took 329.99ms. Allocated memory is still 42.1MB. Free memory was 14.7MB in the beginning and 15.8MB in the end (delta: -1.1MB). Peak memory consumption was 4.9MB. Max. memory is 15.6GB.
 * Boogie Procedure Inliner took 28.81ms. Allocated memory is still 42.1MB. Free memory was 15.8MB in the beginning and 14.5MB in the end (delta: 1.3MB). Peak memory consumption was 1.3MB. Max. memory is 15.6GB.
 * Boogie Preprocessor took 25.45ms. Allocated memory is still 42.1MB. Free memory was 14.5MB in the beginning and 13.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 15.6GB.
 * RCFGBuilder took 365.76ms. Allocated memory is still 42.1MB. Free memory was 13.3MB in the beginning and 15.5MB in the end (delta: -2.2MB). Peak memory consumption was 4.7MB. Max. memory is 15.6GB.
 * TraceAbstraction took 2317.88ms. Allocated memory was 42.1MB in the beginning and 51.2MB in the end (delta: 9.0MB). Free memory was 14.8MB in the beginning and 15.2MB in the end (delta: -346.5kB). Peak memory consumption was 8.7MB. Max. memory is 15.6GB.
 * Witness Printer took 74.22ms. Allocated memory is still 51.2MB. Free memory was 15.2MB in the beginning and 27.0MB in the end (delta: -11.9MB). Peak memory consumption was 37.5kB. Max. memory is 15.6GB.
 * 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: 13]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 194 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 89 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=5, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 20 PreInvPairs, 30 NumberOfFragments, 37 HoareAnnotationTreeSize, 20 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 62/62 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: 14]: Loop Invariant
    Derived loop invariant: 1
  - InvariantResult [Line: 16]: Loop Invariant
    Derived loop invariant: v <= 52 && 1 <= v
RESULT: Ultimate proved your program to be correct!
[2023-01-31 08:39:09,532 INFO  L552       MonitoredProcess]: [MP /mnt/thread-witnesses/replication/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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
