./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/WhileSingle.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_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhileSingle.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/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 d930bfd65ed5d5f664b4fae9868151a005b1916b
..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 22:54:51,781 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-11-29 22:54:51,785 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-29 22:54:51,885 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-29 22:54:51,886 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-29 22:54:51,891 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-29 22:54:51,894 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-11-29 22:54:51,902 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-11-29 22:54:51,909 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-11-29 22:54:51,912 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-11-29 22:54:51,914 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-11-29 22:54:51,917 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-11-29 22:54:51,918 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-11-29 22:54:51,928 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-11-29 22:54:51,931 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-11-29 22:54:51,933 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-29 22:54:51,936 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-29 22:54:51,940 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-29 22:54:51,949 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-29 22:54:51,953 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-29 22:54:51,961 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-29 22:54:51,963 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-11-29 22:54:51,968 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-11-29 22:54:51,970 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-11-29 22:54:51,979 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-11-29 22:54:51,980 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-11-29 22:54:51,980 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-11-29 22:54:51,984 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-11-29 22:54:51,985 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-11-29 22:54:51,987 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-11-29 22:54:51,987 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-11-29 22:54:51,989 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-11-29 22:54:51,992 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-11-29 22:54:51,994 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-11-29 22:54:51,996 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-11-29 22:54:51,996 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-11-29 22:54:51,998 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-11-29 22:54:51,998 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-11-29 22:54:51,999 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-11-29 22:54:52,000 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-11-29 22:54:52,001 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-11-29 22:54:52,004 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf
[2020-11-29 22:54:52,051 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-11-29 22:54:52,051 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-29 22:54:52,054 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-11-29 22:54:52,054 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-11-29 22:54:52,055 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-11-29 22:54:52,055 INFO  L136        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2020-11-29 22:54:52,055 INFO  L138        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2020-11-29 22:54:52,056 INFO  L138        SettingsManager]:  * Use old map elimination=false
[2020-11-29 22:54:52,056 INFO  L138        SettingsManager]:  * Use external solver (rank synthesis)=false
[2020-11-29 22:54:52,056 INFO  L138        SettingsManager]:  * Use only trivial implications for array writes=true
[2020-11-29 22:54:52,057 INFO  L138        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2020-11-29 22:54:52,058 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-29 22:54:52,058 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2020-11-29 22:54:52,058 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-11-29 22:54:52,059 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-11-29 22:54:52,059 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2020-11-29 22:54:52,060 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2020-11-29 22:54:52,060 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2020-11-29 22:54:52,060 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-11-29 22:54:52,061 INFO  L138        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2020-11-29 22:54:52,061 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-11-29 22:54:52,061 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2020-11-29 22:54:52,061 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-29 22:54:52,062 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-11-29 22:54:52,062 INFO  L138        SettingsManager]:  * To the following directory=/home/matthias/ultimate/dump
[2020-11-29 22:54:52,062 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-29 22:54:52,063 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-11-29 22:54:52,063 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-11-29 22:54:52,063 INFO  L138        SettingsManager]:  * Dump automata to the following directory=/home/matthias/ultimate/dump/auto
[2020-11-29 22:54:52,066 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2020-11-29 22:54:52,067 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_c1da6415-7c12-466d-9eef-0be95ac01464/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_c1da6415-7c12-466d-9eef-0be95ac01464/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 -> d930bfd65ed5d5f664b4fae9868151a005b1916b
[2020-11-29 22:54:52,427 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-29 22:54:52,493 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-29 22:54:52,497 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-29 22:54:52,501 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-11-29 22:54:52,502 INFO  L275        PluginConnector]: CDTParser initialized
[2020-11-29 22:54:52,503 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/WhileSingle.c
[2020-11-29 22:54:52,588 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/data/e7f30e1b3/221a5fa95882451a8f3a128afe59c944/FLAG5a261d34c
[2020-11-29 22:54:53,230 INFO  L306              CDTParser]: Found 1 translation units.
[2020-11-29 22:54:53,231 INFO  L160              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/sv-benchmarks/c/termination-restricted-15/WhileSingle.c
[2020-11-29 22:54:53,239 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/data/e7f30e1b3/221a5fa95882451a8f3a128afe59c944/FLAG5a261d34c
[2020-11-29 22:54:53,581 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/data/e7f30e1b3/221a5fa95882451a8f3a128afe59c944
[2020-11-29 22:54:53,585 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-29 22:54:53,587 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2020-11-29 22:54:53,588 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-29 22:54:53,589 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-29 22:54:53,593 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-29 22:54:53,594 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,597 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44baa604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53, skipping insertion in model container
[2020-11-29 22:54:53,598 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,606 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-11-29 22:54:53,621 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-11-29 22:54:53,813 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-29 22:54:53,818 INFO  L203         MainTranslator]: Completed pre-run
[2020-11-29 22:54:53,846 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-29 22:54:53,864 INFO  L208         MainTranslator]: Completed translation
[2020-11-29 22:54:53,865 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53 WrapperNode
[2020-11-29 22:54:53,865 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-29 22:54:53,866 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-11-29 22:54:53,867 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-11-29 22:54:53,867 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-11-29 22:54:53,879 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,886 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,911 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-11-29 22:54:53,912 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-29 22:54:53,913 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-29 22:54:53,913 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-11-29 22:54:53,932 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,932 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,934 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,934 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,937 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,942 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,944 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (1/1) ...
[2020-11-29 22:54:53,945 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-29 22:54:53,947 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-29 22:54:53,948 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-11-29 22:54:53,948 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-11-29 22:54:53,950 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/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 22:54:54,064 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-29 22:54:54,066 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-29 22:54:54,242 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-29 22:54:54,245 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-11-29 22:54:54,247 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:54:54 BoogieIcfgContainer
[2020-11-29 22:54:54,248 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-29 22:54:54,249 INFO  L113        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2020-11-29 22:54:54,249 INFO  L271        PluginConnector]: Initializing BuchiAutomizer...
[2020-11-29 22:54:54,255 INFO  L275        PluginConnector]: BuchiAutomizer initialized
[2020-11-29 22:54:54,256 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2020-11-29 22:54:54,257 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:54:53" (1/3) ...
[2020-11-29 22:54:54,260 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b08c587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:54:54, skipping insertion in model container
[2020-11-29 22:54:54,260 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2020-11-29 22:54:54,260 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:53" (2/3) ...
[2020-11-29 22:54:54,261 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b08c587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:54:54, skipping insertion in model container
[2020-11-29 22:54:54,261 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2020-11-29 22:54:54,261 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:54:54" (3/3) ...
[2020-11-29 22:54:54,263 INFO  L373   chiAutomizerObserver]: Analyzing ICFG WhileSingle.c
[2020-11-29 22:54:54,332 INFO  L359         BuchiCegarLoop]: Interprodecural is true
[2020-11-29 22:54:54,332 INFO  L360         BuchiCegarLoop]: Hoare is false
[2020-11-29 22:54:54,332 INFO  L361         BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2020-11-29 22:54:54,333 INFO  L362         BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2020-11-29 22:54:54,333 INFO  L363         BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-11-29 22:54:54,333 INFO  L364         BuchiCegarLoop]: Difference is false
[2020-11-29 22:54:54,333 INFO  L365         BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-11-29 22:54:54,333 INFO  L368         BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2020-11-29 22:54:54,350 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states.
[2020-11-29 22:54:54,371 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2020-11-29 22:54:54,371 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2020-11-29 22:54:54,371 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2020-11-29 22:54:54,377 INFO  L852         BuchiCegarLoop]: Counterexample stem histogram [1]
[2020-11-29 22:54:54,377 INFO  L853         BuchiCegarLoop]: Counterexample loop histogram [1, 1]
[2020-11-29 22:54:54,377 INFO  L427         BuchiCegarLoop]: ======== Iteration 1============
[2020-11-29 22:54:54,378 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states.
[2020-11-29 22:54:54,379 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2020-11-29 22:54:54,379 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2020-11-29 22:54:54,379 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2020-11-29 22:54:54,380 INFO  L852         BuchiCegarLoop]: Counterexample stem histogram [1]
[2020-11-29 22:54:54,380 INFO  L853         BuchiCegarLoop]: Counterexample loop histogram [1, 1]
[2020-11-29 22:54:54,389 INFO  L794   eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true 
[2020-11-29 22:54:54,390 INFO  L796   eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 < 10); 4#L10true assume 3 != main_~i~0;main_~i~0 := 1 + main_~i~0; 8#L10-2true 
[2020-11-29 22:54:54,397 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 22:54:54,398 INFO  L82        PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times
[2020-11-29 22:54:54,410 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 22:54:54,410 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682293661]
[2020-11-29 22:54:54,411 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 22:54:54,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:54,485 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:54,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:54,491 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:54,510 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 22:54:54,512 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 22:54:54,513 INFO  L82        PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times
[2020-11-29 22:54:54,513 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 22:54:54,514 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092285547]
[2020-11-29 22:54:54,514 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 22:54:54,528 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:54,529 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:54,534 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:54,535 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:54,537 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 22:54:54,539 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 22:54:54,539 INFO  L82        PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times
[2020-11-29 22:54:54,539 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 22:54:54,540 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823792122]
[2020-11-29 22:54:54,540 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 22:54:54,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:54,550 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:54,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:54,556 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:54,558 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 22:54:54,668 INFO  L210          LassoAnalysis]: Preferences:
[2020-11-29 22:54:54,669 INFO  L126   ssoRankerPreferences]: Compute integeral hull: false
[2020-11-29 22:54:54,670 INFO  L127   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2020-11-29 22:54:54,670 INFO  L128   ssoRankerPreferences]: Term annotations enabled: false
[2020-11-29 22:54:54,670 INFO  L129   ssoRankerPreferences]: Use exernal solver: true
[2020-11-29 22:54:54,670 INFO  L130   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 22:54:54,670 INFO  L131   ssoRankerPreferences]: Dump SMT script to file: false
[2020-11-29 22:54:54,671 INFO  L132   ssoRankerPreferences]: Path of dumped script: 
[2020-11-29 22:54:54,671 INFO  L133   ssoRankerPreferences]: Filename of dumped script: WhileSingle.c_Iteration1_Loop
[2020-11-29 22:54:54,671 INFO  L134   ssoRankerPreferences]: MapElimAlgo: Frank
[2020-11-29 22:54:54,671 INFO  L274          LassoAnalysis]: Starting lasso preprocessing...
[2020-11-29 22:54:54,699 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 22:54:54,749 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 22:54:54,760 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 22:54:55,086 WARN  L193               SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 16
[2020-11-29 22:54:55,095 INFO  L292          LassoAnalysis]: Preprocessing complete.
[2020-11-29 22:54:55,097 INFO  L404          LassoAnalysis]: Checking for nontermination...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/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 22:54:55,113 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2020-11-29 22:54:55,113 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 22:54:55,134 INFO  L437          LassoAnalysis]: Proved nontermination for one component.
[2020-11-29 22:54:55,134 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_c1da6415-7c12-466d-9eef-0be95ac01464/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)
[2020-11-29 22:54:55,181 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2020-11-29 22:54:55,181 INFO  L160   nArgumentSynthesizer]: Using integer mode.
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 22:54:55,194 INFO  L437          LassoAnalysis]: Proved nontermination for one component.
[2020-11-29 22:54:55,194 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_c1da6415-7c12-466d-9eef-0be95ac01464/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)
[2020-11-29 22:54:55,252 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2020-11-29 22:54:55,252 INFO  L160   nArgumentSynthesizer]: Using integer mode.
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/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)
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 22:54:55,310 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2020-11-29 22:54:55,311 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2020-11-29 22:54:55,355 INFO  L444          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2020-11-29 22:54:55,357 INFO  L210          LassoAnalysis]: Preferences:
[2020-11-29 22:54:55,358 INFO  L126   ssoRankerPreferences]: Compute integeral hull: false
[2020-11-29 22:54:55,358 INFO  L127   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2020-11-29 22:54:55,358 INFO  L128   ssoRankerPreferences]: Term annotations enabled: false
[2020-11-29 22:54:55,358 INFO  L129   ssoRankerPreferences]: Use exernal solver: false
[2020-11-29 22:54:55,358 INFO  L130   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 22:54:55,358 INFO  L131   ssoRankerPreferences]: Dump SMT script to file: false
[2020-11-29 22:54:55,359 INFO  L132   ssoRankerPreferences]: Path of dumped script: 
[2020-11-29 22:54:55,359 INFO  L133   ssoRankerPreferences]: Filename of dumped script: WhileSingle.c_Iteration1_Loop
[2020-11-29 22:54:55,359 INFO  L134   ssoRankerPreferences]: MapElimAlgo: Frank
[2020-11-29 22:54:55,359 INFO  L274          LassoAnalysis]: Starting lasso preprocessing...
[2020-11-29 22:54:55,363 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 22:54:55,376 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 22:54:55,382 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 22:54:55,581 INFO  L292          LassoAnalysis]: Preprocessing complete.
[2020-11-29 22:54:55,587 INFO  L489          LassoAnalysis]: Using template 'affine'.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/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 22:54:55,597 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 22:54:55,601 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2020-11-29 22:54:55,601 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2020-11-29 22:54:55,601 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2020-11-29 22:54:55,601 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2020-11-29 22:54:55,615 INFO  L401   nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2020-11-29 22:54:55,615 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 22:54:55,627 INFO  L522          LassoAnalysis]: Proving termination failed for this template and these settings.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/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)
Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 22:54:55,669 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 22:54:55,673 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2020-11-29 22:54:55,673 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2020-11-29 22:54:55,673 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2020-11-29 22:54:55,673 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2020-11-29 22:54:55,679 INFO  L401   nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2020-11-29 22:54:55,679 INFO  L402   nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2020-11-29 22:54:55,685 INFO  L522          LassoAnalysis]: Proving termination failed for this template and these settings.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/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)
Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 22:54:55,734 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 22:54:55,736 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2020-11-29 22:54:55,737 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2020-11-29 22:54:55,737 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2020-11-29 22:54:55,738 INFO  L204   nArgumentSynthesizer]: 2 loop disjuncts
[2020-11-29 22:54:55,738 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2020-11-29 22:54:55,742 INFO  L401   nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2020-11-29 22:54:55,742 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2020-11-29 22:54:55,747 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2020-11-29 22:54:55,761 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2020-11-29 22:54:55,761 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/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)
Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-11-29 22:54:55,808 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2020-11-29 22:54:55,809 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2020-11-29 22:54:55,809 INFO  L510          LassoAnalysis]: Proved termination.
[2020-11-29 22:54:55,809 INFO  L512          LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 19
Supporting invariants []
[2020-11-29 22:54:55,846 INFO  L297   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2020-11-29 22:54:55,893 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 22:54:55,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-29 22:54:55,909 WARN  L261         TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core
[2020-11-29 22:54:55,910 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-29 22:54:55,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-29 22:54:55,932 WARN  L261         TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-11-29 22:54:55,934 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-29 22:54:55,954 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 22:54:55,978 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 22:54:55,979 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states.
[2020-11-29 22:54:56,074 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 22:54:56,075 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 22:54:56,077 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2020-11-29 22:54:56,078 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions.
[2020-11-29 22:54:56,079 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters.
[2020-11-29 22:54:56,080 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2020-11-29 22:54:56,080 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters.
[2020-11-29 22:54:56,081 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2020-11-29 22:54:56,081 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters.
[2020-11-29 22:54:56,081 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2020-11-29 22:54:56,082 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions.
[2020-11-29 22:54:56,085 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2020-11-29 22:54:56,089 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions.
[2020-11-29 22:54:56,090 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 4
[2020-11-29 22:54:56,090 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 5
[2020-11-29 22:54:56,091 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions.
[2020-11-29 22:54:56,091 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2020-11-29 22:54:56,092 INFO  L691         BuchiCegarLoop]: Abstraction has 8 states and 11 transitions.
[2020-11-29 22:54:56,109 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions.
[2020-11-29 22:54:56,151 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7.
[2020-11-29 22:54:56,152 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2020-11-29 22:54:56,152 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions.
[2020-11-29 22:54:56,154 INFO  L714         BuchiCegarLoop]: Abstraction has 7 states and 10 transitions.
[2020-11-29 22:54:56,154 INFO  L594         BuchiCegarLoop]: Abstraction has 7 states and 10 transitions.
[2020-11-29 22:54:56,155 INFO  L427         BuchiCegarLoop]: ======== Iteration 2============
[2020-11-29 22:54:56,155 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions.
[2020-11-29 22:54:56,155 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2020-11-29 22:54:56,155 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2020-11-29 22:54:56,156 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2020-11-29 22:54:56,156 INFO  L852         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2020-11-29 22:54:56,156 INFO  L853         BuchiCegarLoop]: Counterexample loop histogram [1, 1]
[2020-11-29 22:54:56,156 INFO  L794   eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 69#L10-2 assume !!(main_~i~0 < 10); 63#L10 
[2020-11-29 22:54:56,157 INFO  L796   eck$LassoCheckResult]: Loop: 63#L10 assume !(3 != main_~i~0); 64#L10-2 assume !!(main_~i~0 < 10); 63#L10 
[2020-11-29 22:54:56,157 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 22:54:56,157 INFO  L82        PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times
[2020-11-29 22:54:56,158 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 22:54:56,158 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592664476]
[2020-11-29 22:54:56,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 22:54:56,163 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:56,164 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:56,167 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:56,167 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:56,168 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 22:54:56,169 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 22:54:56,170 INFO  L82        PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times
[2020-11-29 22:54:56,170 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 22:54:56,170 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814190766]
[2020-11-29 22:54:56,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 22:54:56,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:56,177 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:56,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:56,180 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:56,181 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 22:54:56,182 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-29 22:54:56,182 INFO  L82        PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times
[2020-11-29 22:54:56,183 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-29 22:54:56,183 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083768572]
[2020-11-29 22:54:56,183 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-29 22:54:56,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:56,189 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:56,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-29 22:54:56,192 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-29 22:54:56,194 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-11-29 22:54:56,259 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:54:56 BoogieIcfgContainer
[2020-11-29 22:54:56,259 INFO  L132        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2020-11-29 22:54:56,260 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2020-11-29 22:54:56,260 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2020-11-29 22:54:56,260 INFO  L275        PluginConnector]: Witness Printer initialized
[2020-11-29 22:54:56,261 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:54:54" (3/4) ...
[2020-11-29 22:54:56,269 INFO  L134         WitnessPrinter]: Generating witness for non-termination counterexample
[2020-11-29 22:54:56,314 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c1da6415-7c12-466d-9eef-0be95ac01464/bin/uautomizer/witness.graphml
[2020-11-29 22:54:56,314 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2020-11-29 22:54:56,316 INFO  L168              Benchmark]: Toolchain (without parser) took 2728.75 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 76.2 MB in the beginning and 95.8 MB in the end (delta: -19.6 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB.
[2020-11-29 22:54:56,317 INFO  L168              Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 100.7 MB. Free memory is still 57.2 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-29 22:54:56,317 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 276.99 ms. Allocated memory is still 100.7 MB. Free memory was 76.1 MB in the beginning and 79.8 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2020-11-29 22:54:56,318 INFO  L168              Benchmark]: Boogie Procedure Inliner took 45.17 ms. Allocated memory is still 100.7 MB. Free memory was 79.8 MB in the beginning and 78.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-29 22:54:56,319 INFO  L168              Benchmark]: Boogie Preprocessor took 33.07 ms. Allocated memory is still 100.7 MB. Free memory was 78.5 MB in the beginning and 77.7 MB in the end (delta: 882.7 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-29 22:54:56,319 INFO  L168              Benchmark]: RCFGBuilder took 301.17 ms. Allocated memory is still 100.7 MB. Free memory was 77.7 MB in the beginning and 70.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2020-11-29 22:54:56,320 INFO  L168              Benchmark]: BuchiAutomizer took 2009.61 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 69.9 MB in the beginning and 97.1 MB in the end (delta: -27.2 MB). Peak memory consumption was 531.3 kB. Max. memory is 16.1 GB.
[2020-11-29 22:54:56,321 INFO  L168              Benchmark]: Witness Printer took 54.54 ms. Allocated memory is still 125.8 MB. Free memory was 97.1 MB in the beginning and 95.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-29 22:54:56,325 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.43 ms. Allocated memory is still 100.7 MB. Free memory is still 57.2 MB. There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 276.99 ms. Allocated memory is still 100.7 MB. Free memory was 76.1 MB in the beginning and 79.8 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 45.17 ms. Allocated memory is still 100.7 MB. Free memory was 79.8 MB in the beginning and 78.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 33.07 ms. Allocated memory is still 100.7 MB. Free memory was 78.5 MB in the beginning and 77.7 MB in the end (delta: 882.7 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * RCFGBuilder took 301.17 ms. Allocated memory is still 100.7 MB. Free memory was 77.7 MB in the beginning and 70.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * BuchiAutomizer took 2009.61 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 69.9 MB in the beginning and 97.1 MB in the end (delta: -27.2 MB). Peak memory consumption was 531.3 kB. Max. memory is 16.1 GB.
 * Witness Printer took 54.54 ms. Allocated memory is still 125.8 MB. Free memory was 97.1 MB in the beginning and 95.8 MB in the end (delta: 1.2 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 -2 * i + 19 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: inital14 mio100 ax185 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2	LassoNonterminationAnalysisSatUnbounded: 0	LassoNonterminationAnalysisUnsat: 1	LassoNonterminationAnalysisUnknown: 0	LassoNonterminationAnalysisTime: 0.1s	
  - 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@755f25c7=0, \result=0, i=3}
  - 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 < 10
Loop:
[L10]  COND FALSE  !(i != 3)
[L9]   COND TRUE   i < 10
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...