./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/WhilePart.c --full-output --architecture 64bit


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


Checking for termination
Using default analysis
Version a4ecdabc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhilePart.c -s /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0243e777c754f4d015f916e05482f6a7188e03cf
..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(TERM)
--- Real Ultimate output ---
This is Ultimate 0.2.0-a4ecdab
[2020-11-29 18:24:30,562 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-11-29 18:24:30,565 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-29 18:24:30,618 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-29 18:24:30,618 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-29 18:24:30,645 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-29 18:24:30,649 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-11-29 18:24:30,654 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-11-29 18:24:30,658 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-11-29 18:24:30,665 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-11-29 18:24:30,667 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-11-29 18:24:30,670 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-11-29 18:24:30,670 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-11-29 18:24:30,675 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-11-29 18:24:30,676 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-11-29 18:24:30,679 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-29 18:24:30,681 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-29 18:24:30,682 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-29 18:24:30,689 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-29 18:24:30,698 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-29 18:24:30,701 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-29 18:24:30,703 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-11-29 18:24:30,705 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-11-29 18:24:30,707 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-11-29 18:24:30,718 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-11-29 18:24:30,718 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-11-29 18:24:30,719 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-11-29 18:24:30,721 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-11-29 18:24:30,722 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-11-29 18:24:30,724 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-11-29 18:24:30,724 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-11-29 18:24:30,726 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-11-29 18:24:30,728 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-11-29 18:24:30,730 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-11-29 18:24:30,731 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-11-29 18:24:30,732 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-11-29 18:24:30,733 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-11-29 18:24:30,733 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-11-29 18:24:30,733 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-11-29 18:24:30,735 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-11-29 18:24:30,736 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-11-29 18:24:30,739 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf
[2020-11-29 18:24:30,789 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-11-29 18:24:30,790 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-29 18:24:30,792 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-11-29 18:24:30,792 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-11-29 18:24:30,793 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-11-29 18:24:30,793 INFO  L136        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2020-11-29 18:24:30,793 INFO  L138        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2020-11-29 18:24:30,794 INFO  L138        SettingsManager]:  * Use old map elimination=false
[2020-11-29 18:24:30,794 INFO  L138        SettingsManager]:  * Use external solver (rank synthesis)=false
[2020-11-29 18:24:30,794 INFO  L138        SettingsManager]:  * Use only trivial implications for array writes=true
[2020-11-29 18:24:30,795 INFO  L138        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2020-11-29 18:24:30,796 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-29 18:24:30,796 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2020-11-29 18:24:30,796 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-11-29 18:24:30,796 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-11-29 18:24:30,797 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2020-11-29 18:24:30,797 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2020-11-29 18:24:30,797 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2020-11-29 18:24:30,797 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-11-29 18:24:30,798 INFO  L138        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2020-11-29 18:24:30,798 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-11-29 18:24:30,798 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2020-11-29 18:24:30,798 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-29 18:24:30,799 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-11-29 18:24:30,799 INFO  L138        SettingsManager]:  * To the following directory=/home/matthias/ultimate/dump
[2020-11-29 18:24:30,799 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-29 18:24:30,800 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-11-29 18:24:30,800 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-11-29 18:24:30,800 INFO  L138        SettingsManager]:  * Dump automata to the following directory=/home/matthias/ultimate/dump/auto
[2020-11-29 18:24:30,803 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2020-11-29 18:24:30,803 INFO  L138        SettingsManager]:  * TransformationType=MODULO_NEIGHBOR
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/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 -> /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer
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(F end) )


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 -> 0243e777c754f4d015f916e05482f6a7188e03cf
[2020-11-29 18:24:31,174 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-29 18:24:31,220 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-29 18:24:31,225 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-29 18:24:31,227 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-11-29 18:24:31,228 INFO  L275        PluginConnector]: CDTParser initialized
[2020-11-29 18:24:31,229 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/WhilePart.c
[2020-11-29 18:24:31,317 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/data/1f49d70a0/76bab5ab2b9e461788c7f5ad49ff0e20/FLAGe4fa3b684
[2020-11-29 18:24:31,955 INFO  L306              CDTParser]: Found 1 translation units.
[2020-11-29 18:24:31,956 INFO  L160              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/sv-benchmarks/c/termination-restricted-15/WhilePart.c
[2020-11-29 18:24:31,968 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/data/1f49d70a0/76bab5ab2b9e461788c7f5ad49ff0e20/FLAGe4fa3b684
[2020-11-29 18:24:32,327 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/data/1f49d70a0/76bab5ab2b9e461788c7f5ad49ff0e20
[2020-11-29 18:24:32,338 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-29 18:24:32,342 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2020-11-29 18:24:32,347 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-29 18:24:32,348 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-29 18:24:32,352 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-29 18:24:32,354 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,357 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7c5f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32, skipping insertion in model container
[2020-11-29 18:24:32,357 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,367 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-11-29 18:24:32,382 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-11-29 18:24:32,575 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-29 18:24:32,580 INFO  L203         MainTranslator]: Completed pre-run
[2020-11-29 18:24:32,628 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-29 18:24:32,644 INFO  L208         MainTranslator]: Completed translation
[2020-11-29 18:24:32,648 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32 WrapperNode
[2020-11-29 18:24:32,648 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-29 18:24:32,649 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-11-29 18:24:32,650 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-11-29 18:24:32,650 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-11-29 18:24:32,660 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,665 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,685 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-11-29 18:24:32,686 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-29 18:24:32,686 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-29 18:24:32,686 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-11-29 18:24:32,697 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,697 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,698 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,698 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,700 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,705 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,706 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (1/1) ...
[2020-11-29 18:24:32,707 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-29 18:24:32,709 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-29 18:24:32,709 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-11-29 18:24:32,709 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-11-29 18:24:32,711 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:32,804 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-29 18:24:32,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-29 18:24:32,973 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-29 18:24:32,975 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-11-29 18:24:32,978 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:24:32 BoogieIcfgContainer
[2020-11-29 18:24:32,978 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-29 18:24:32,980 INFO  L113        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2020-11-29 18:24:32,980 INFO  L271        PluginConnector]: Initializing BuchiAutomizer...
[2020-11-29 18:24:32,985 INFO  L275        PluginConnector]: BuchiAutomizer initialized
[2020-11-29 18:24:32,986 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2020-11-29 18:24:32,986 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:24:32" (1/3) ...
[2020-11-29 18:24:32,988 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70f3d229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:24:32, skipping insertion in model container
[2020-11-29 18:24:32,989 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2020-11-29 18:24:32,989 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:32" (2/3) ...
[2020-11-29 18:24:32,990 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70f3d229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:24:32, skipping insertion in model container
[2020-11-29 18:24:32,991 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2020-11-29 18:24:32,991 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:24:32" (3/3) ...
[2020-11-29 18:24:32,993 INFO  L373   chiAutomizerObserver]: Analyzing ICFG WhilePart.c
[2020-11-29 18:24:33,072 INFO  L359         BuchiCegarLoop]: Interprodecural is true
[2020-11-29 18:24:33,072 INFO  L360         BuchiCegarLoop]: Hoare is false
[2020-11-29 18:24:33,073 INFO  L361         BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2020-11-29 18:24:33,073 INFO  L362         BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2020-11-29 18:24:33,073 INFO  L363         BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-11-29 18:24:33,073 INFO  L364         BuchiCegarLoop]: Difference is false
[2020-11-29 18:24:33,073 INFO  L365         BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-11-29 18:24:33,074 INFO  L368         BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2020-11-29 18:24:33,088 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states.
[2020-11-29 18:24:33,110 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2020-11-29 18:24:33,111 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2020-11-29 18:24:33,111 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2020-11-29 18:24:33,118 INFO  L852         BuchiCegarLoop]: Counterexample stem histogram [1]
[2020-11-29 18:24:33,118 INFO  L853         BuchiCegarLoop]: Counterexample loop histogram [1, 1]
[2020-11-29 18:24:33,119 INFO  L427         BuchiCegarLoop]: ======== Iteration 1============
[2020-11-29 18:24:33,119 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states.
[2020-11-29 18:24:33,120 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2020-11-29 18:24:33,120 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2020-11-29 18:24:33,120 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2020-11-29 18:24:33,121 INFO  L852         BuchiCegarLoop]: Counterexample stem histogram [1]
[2020-11-29 18:24:33,121 INFO  L853         BuchiCegarLoop]: Counterexample loop histogram [1, 1]
[2020-11-29 18:24:33,129 INFO  L794   eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true 
[2020-11-29 18:24:33,130 INFO  L796   eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 > 5); 4#L10true assume main_~i~0 < 10;main_~i~0 := main_~i~0 - 1; 8#L10-2true 
[2020-11-29 18:24:33,137 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 18:24:33,137 INFO  L82        PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times
[2020-11-29 18:24:33,148 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 18:24:33,149 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613461257]
[2020-11-29 18:24:33,149 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 18:24:33,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:33,244 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:33,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:33,255 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:33,274 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 18:24:33,278 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 18:24:33,279 INFO  L82        PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times
[2020-11-29 18:24:33,279 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 18:24:33,281 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252224861]
[2020-11-29 18:24:33,281 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 18:24:33,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:33,308 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:33,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:33,319 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:33,321 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 18:24:33,336 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 18:24:33,336 INFO  L82        PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times
[2020-11-29 18:24:33,337 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 18:24:33,337 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632331689]
[2020-11-29 18:24:33,338 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 18:24:33,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:33,351 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:33,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:33,358 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:33,362 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 18:24:33,510 WARN  L193               SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 10
[2020-11-29 18:24:33,573 INFO  L210          LassoAnalysis]: Preferences:
[2020-11-29 18:24:33,574 INFO  L126   ssoRankerPreferences]: Compute integeral hull: false
[2020-11-29 18:24:33,574 INFO  L127   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2020-11-29 18:24:33,575 INFO  L128   ssoRankerPreferences]: Term annotations enabled: false
[2020-11-29 18:24:33,575 INFO  L129   ssoRankerPreferences]: Use exernal solver: true
[2020-11-29 18:24:33,575 INFO  L130   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:33,575 INFO  L131   ssoRankerPreferences]: Dump SMT script to file: false
[2020-11-29 18:24:33,576 INFO  L132   ssoRankerPreferences]: Path of dumped script: 
[2020-11-29 18:24:33,576 INFO  L133   ssoRankerPreferences]: Filename of dumped script: WhilePart.c_Iteration1_Loop
[2020-11-29 18:24:33,576 INFO  L134   ssoRankerPreferences]: MapElimAlgo: Frank
[2020-11-29 18:24:33,576 INFO  L274          LassoAnalysis]: Starting lasso preprocessing...
[2020-11-29 18:24:33,603 INFO  L141          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2020-11-29 18:24:33,654 INFO  L141          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2020-11-29 18:24:33,674 INFO  L141          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2020-11-29 18:24:33,857 INFO  L292          LassoAnalysis]: Preprocessing complete.
[2020-11-29 18:24:33,858 INFO  L404          LassoAnalysis]: Checking for nontermination...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2020-11-29 18:24:33,865 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2020-11-29 18:24:33,866 INFO  L160   nArgumentSynthesizer]: Using integer mode.
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:33,877 INFO  L437          LassoAnalysis]: Proved nontermination for one component.
[2020-11-29 18:24:33,877 INFO  L440          LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:33,915 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2020-11-29 18:24:33,915 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2020-11-29 18:24:33,924 INFO  L437          LassoAnalysis]: Proved nontermination for one component.
[2020-11-29 18:24:33,924 INFO  L440          LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/z3
Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:33,957 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2020-11-29 18:24:33,958 INFO  L160   nArgumentSynthesizer]: Using integer mode.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/z3
Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2020-11-29 18:24:33,992 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2020-11-29 18:24:33,993 INFO  L160   nArgumentSynthesizer]: Using integer mode.
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:34,001 INFO  L444          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2020-11-29 18:24:34,030 INFO  L210          LassoAnalysis]: Preferences:
[2020-11-29 18:24:34,031 INFO  L126   ssoRankerPreferences]: Compute integeral hull: false
[2020-11-29 18:24:34,031 INFO  L127   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2020-11-29 18:24:34,031 INFO  L128   ssoRankerPreferences]: Term annotations enabled: false
[2020-11-29 18:24:34,031 INFO  L129   ssoRankerPreferences]: Use exernal solver: false
[2020-11-29 18:24:34,031 INFO  L130   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:34,031 INFO  L131   ssoRankerPreferences]: Dump SMT script to file: false
[2020-11-29 18:24:34,031 INFO  L132   ssoRankerPreferences]: Path of dumped script: 
[2020-11-29 18:24:34,031 INFO  L133   ssoRankerPreferences]: Filename of dumped script: WhilePart.c_Iteration1_Loop
[2020-11-29 18:24:34,032 INFO  L134   ssoRankerPreferences]: MapElimAlgo: Frank
[2020-11-29 18:24:34,032 INFO  L274          LassoAnalysis]: Starting lasso preprocessing...
[2020-11-29 18:24:34,033 INFO  L141          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2020-11-29 18:24:34,047 INFO  L141          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2020-11-29 18:24:34,055 INFO  L141          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2020-11-29 18:24:34,190 INFO  L292          LassoAnalysis]: Preprocessing complete.
[2020-11-29 18:24:34,204 INFO  L489          LassoAnalysis]: Using template 'affine'.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/z3
Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2020-11-29 18:24:34,263 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings:
Termination analysis: LINEAR_WITH_GUESSES
Number of strict supporting invariants: 0
Number of non-strict supporting invariants: 1
Consider only non-deceasing supporting invariants: true
Simplify termination arguments: true
Simplify supporting invariants: trueOverapproximate stem: false
[2020-11-29 18:24:34,266 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2020-11-29 18:24:34,266 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2020-11-29 18:24:34,267 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2020-11-29 18:24:34,267 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2020-11-29 18:24:34,273 INFO  L401   nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2020-11-29 18:24:34,274 INFO  L402   nArgumentSynthesizer]: A total of 2 supporting invariants were added.
Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:34,300 INFO  L522          LassoAnalysis]: Proving termination failed for this template and these settings.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/z3
Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2020-11-29 18:24:34,423 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings:
Termination analysis: LINEAR_WITH_GUESSES
Number of strict supporting invariants: 0
Number of non-strict supporting invariants: 1
Consider only non-deceasing supporting invariants: true
Simplify termination arguments: true
Simplify supporting invariants: trueOverapproximate stem: false
[2020-11-29 18:24:34,426 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2020-11-29 18:24:34,426 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2020-11-29 18:24:34,426 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2020-11-29 18:24:34,426 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2020-11-29 18:24:34,438 INFO  L401   nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2020-11-29 18:24:34,438 INFO  L402   nArgumentSynthesizer]: A total of 2 supporting invariants were added.
Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:34,459 INFO  L522          LassoAnalysis]: Proving termination failed for this template and these settings.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/z3
Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2020-11-29 18:24:34,508 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings:
Termination analysis: LINEAR_WITH_GUESSES
Number of strict supporting invariants: 0
Number of non-strict supporting invariants: 1
Consider only non-deceasing supporting invariants: true
Simplify termination arguments: true
Simplify supporting invariants: trueOverapproximate stem: false
[2020-11-29 18:24:34,511 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2020-11-29 18:24:34,511 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2020-11-29 18:24:34,512 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2020-11-29 18:24:34,512 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2020-11-29 18:24:34,512 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2020-11-29 18:24:34,516 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2020-11-29 18:24:34,523 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:34,535 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2020-11-29 18:24:34,542 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2020-11-29 18:24:34,542 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/z3
Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2020-11-29 18:24:34,552 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2020-11-29 18:24:34,553 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2020-11-29 18:24:34,553 INFO  L510          LassoAnalysis]: Proved termination.
[2020-11-29 18:24:34,553 INFO  L512          LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0
Supporting invariants []
Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 18:24:34,594 INFO  L297   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2020-11-29 18:24:34,630 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 18:24:34,644 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-29 18:24:34,646 WARN  L261         TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core
[2020-11-29 18:24:34,647 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-29 18:24:34,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-29 18:24:34,665 WARN  L261         TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-11-29 18:24:34,665 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-29 18:24:34,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-29 18:24:34,704 INFO  L152   lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates 
[2020-11-29 18:24:34,706 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states.
[2020-11-29 18:24:34,795 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 7 states.
[2020-11-29 18:24:34,797 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states 
[2020-11-29 18:24:34,799 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2020-11-29 18:24:34,800 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions.
[2020-11-29 18:24:34,802 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters.
[2020-11-29 18:24:34,803 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2020-11-29 18:24:34,810 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters.
[2020-11-29 18:24:34,811 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2020-11-29 18:24:34,812 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters.
[2020-11-29 18:24:34,812 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2020-11-29 18:24:34,813 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions.
[2020-11-29 18:24:34,816 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2020-11-29 18:24:34,824 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions.
[2020-11-29 18:24:34,825 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 4
[2020-11-29 18:24:34,826 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 5
[2020-11-29 18:24:34,827 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions.
[2020-11-29 18:24:34,828 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2020-11-29 18:24:34,828 INFO  L691         BuchiCegarLoop]: Abstraction has 8 states and 11 transitions.
[2020-11-29 18:24:34,848 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions.
[2020-11-29 18:24:34,858 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7.
[2020-11-29 18:24:34,859 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2020-11-29 18:24:34,859 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions.
[2020-11-29 18:24:34,861 INFO  L714         BuchiCegarLoop]: Abstraction has 7 states and 10 transitions.
[2020-11-29 18:24:34,861 INFO  L594         BuchiCegarLoop]: Abstraction has 7 states and 10 transitions.
[2020-11-29 18:24:34,861 INFO  L427         BuchiCegarLoop]: ======== Iteration 2============
[2020-11-29 18:24:34,862 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions.
[2020-11-29 18:24:34,863 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2020-11-29 18:24:34,863 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2020-11-29 18:24:34,863 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2020-11-29 18:24:34,864 INFO  L852         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2020-11-29 18:24:34,864 INFO  L853         BuchiCegarLoop]: Counterexample loop histogram [1, 1]
[2020-11-29 18:24:34,864 INFO  L794   eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 69#L10-2 assume !!(main_~i~0 > 5); 63#L10 
[2020-11-29 18:24:34,864 INFO  L796   eck$LassoCheckResult]: Loop: 63#L10 assume !(main_~i~0 < 10); 64#L10-2 assume !!(main_~i~0 > 5); 63#L10 
[2020-11-29 18:24:34,866 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 18:24:34,866 INFO  L82        PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times
[2020-11-29 18:24:34,867 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 18:24:34,867 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144574110]
[2020-11-29 18:24:34,867 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 18:24:34,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:34,876 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:34,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:34,881 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:34,883 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 18:24:34,884 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 18:24:34,884 INFO  L82        PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times
[2020-11-29 18:24:34,884 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 18:24:34,885 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146472508]
[2020-11-29 18:24:34,885 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 18:24:34,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:34,895 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:34,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:34,899 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:34,901 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 18:24:34,902 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 18:24:34,902 INFO  L82        PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times
[2020-11-29 18:24:34,902 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 18:24:34,903 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784995178]
[2020-11-29 18:24:34,903 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 18:24:34,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:34,915 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:34,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 18:24:34,921 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 18:24:34,924 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 18:24:34,992 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:24:34 BoogieIcfgContainer
[2020-11-29 18:24:34,992 INFO  L132        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2020-11-29 18:24:34,993 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2020-11-29 18:24:34,993 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2020-11-29 18:24:34,993 INFO  L275        PluginConnector]: Witness Printer initialized
[2020-11-29 18:24:34,994 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:24:32" (3/4) ...
[2020-11-29 18:24:35,000 INFO  L134         WitnessPrinter]: Generating witness for non-termination counterexample
[2020-11-29 18:24:35,052 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_569441e6-6836-4513-9053-19bc83c23445/bin/uautomizer/witness.graphml
[2020-11-29 18:24:35,052 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2020-11-29 18:24:35,054 INFO  L168              Benchmark]: Toolchain (without parser) took 2710.82 ms. Allocated memory is still 111.1 MB. Free memory was 76.4 MB in the beginning and 61.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB.
[2020-11-29 18:24:35,054 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 111.1 MB. Free memory was 83.7 MB in the beginning and 83.7 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-29 18:24:35,056 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 301.31 ms. Allocated memory is still 111.1 MB. Free memory was 76.2 MB in the beginning and 88.5 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2020-11-29 18:24:35,057 INFO  L168              Benchmark]: Boogie Procedure Inliner took 35.52 ms. Allocated memory is still 111.1 MB. Free memory was 88.5 MB in the beginning and 87.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-29 18:24:35,060 INFO  L168              Benchmark]: Boogie Preprocessor took 21.92 ms. Allocated memory is still 111.1 MB. Free memory was 87.0 MB in the beginning and 86.5 MB in the end (delta: 566.2 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-29 18:24:35,061 INFO  L168              Benchmark]: RCFGBuilder took 269.94 ms. Allocated memory is still 111.1 MB. Free memory was 86.0 MB in the beginning and 78.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2020-11-29 18:24:35,062 INFO  L168              Benchmark]: BuchiAutomizer took 2012.49 ms. Allocated memory is still 111.1 MB. Free memory was 78.0 MB in the beginning and 62.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB.
[2020-11-29 18:24:35,062 INFO  L168              Benchmark]: Witness Printer took 59.21 ms. Allocated memory is still 111.1 MB. Free memory was 62.6 MB in the beginning and 61.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-29 18:24:35,065 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28 ms. Allocated memory is still 111.1 MB. Free memory was 83.7 MB in the beginning and 83.7 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 301.31 ms. Allocated memory is still 111.1 MB. Free memory was 76.2 MB in the beginning and 88.5 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 35.52 ms. Allocated memory is still 111.1 MB. Free memory was 88.5 MB in the beginning and 87.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 21.92 ms. Allocated memory is still 111.1 MB. Free memory was 87.0 MB in the beginning and 86.5 MB in the end (delta: 566.2 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * RCFGBuilder took 269.94 ms. Allocated memory is still 111.1 MB. Free memory was 86.0 MB in the beginning and 78.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * BuchiAutomizer took 2012.49 ms. Allocated memory is still 111.1 MB. Free memory was 78.0 MB in the beginning and 62.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB.
 * Witness Printer took 59.21 ms. Allocated memory is still 111.1 MB. Free memory was 62.6 MB in the beginning and 61.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Constructed decomposition of program
    Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 5 locations.  The remainder module has 7 locations.
  - StatisticsResult: Timing statistics
    BüchiAutomizer plugin needed 1.9s and 2 iterations.  TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1.	Nontrivial modules had stage [1, 0, 0, 0, 0].	InterpolantCoveringCapabilityFinite: 0/0	InterpolantCoveringCapabilityBuchi: 0/0	HoareTripleCheckerStatistics: 4 SDtfs, 7 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time	LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks:   Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 94ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2	LassoNonterminationAnalysisSatUnbounded: 0	LassoNonterminationAnalysisUnsat: 1	LassoNonterminationAnalysisUnknown: 0	LassoNonterminationAnalysisTime: 0.0s	
  - TerminationAnalysisResult: Nontermination possible
    Buchi Automizer proved that your program is nonterminating for some inputs
  - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution.
    Nontermination argument in form of an infinite execution
State at position 0 is
{}
State at position 1 is
{org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fbcb9d1=0, \result=0, i=10}
  - StatisticsResult: NonterminationArgumentStatistics
    Fixpoint
  - NonterminatingLassoResult [Line: 10]: Nonterminating execution
    Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L6]             int i;
[L7]             i = __VERIFIER_nondet_int()
[L9]  COND TRUE  i > 5
Loop:
[L10]  COND FALSE  !(i < 10)
[L9]   COND TRUE   i > 5
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...