./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version 1dbac8bc
Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/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 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41
...........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.1.23-1dbac8b
[2018-11-10 04:51:47,005 INFO L170 SettingsManager]: Resetting all preferences to default values...
[2018-11-10 04:51:47,006 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values
[2018-11-10 04:51:47,014 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-11-10 04:51:47,014 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-11-10 04:51:47,015 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-11-10 04:51:47,016 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-11-10 04:51:47,017 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values
[2018-11-10 04:51:47,018 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-11-10 04:51:47,018 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-11-10 04:51:47,019 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-11-10 04:51:47,019 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-11-10 04:51:47,019 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-11-10 04:51:47,020 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-11-10 04:51:47,021 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-11-10 04:51:47,021 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-11-10 04:51:47,022 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-11-10 04:51:47,023 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-11-10 04:51:47,025 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values
[2018-11-10 04:51:47,026 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-11-10 04:51:47,026 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-11-10 04:51:47,027 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-11-10 04:51:47,029 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-11-10 04:51:47,029 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-11-10 04:51:47,029 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-11-10 04:51:47,030 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-11-10 04:51:47,031 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-11-10 04:51:47,031 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-11-10 04:51:47,032 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values
[2018-11-10 04:51:47,033 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-11-10 04:51:47,033 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values
[2018-11-10 04:51:47,034 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-11-10 04:51:47,034 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-11-10 04:51:47,034 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values
[2018-11-10 04:51:47,034 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values
[2018-11-10 04:51:47,035 INFO L181 SettingsManager]: Finished resetting all preferences to default values...
[2018-11-10 04:51:47,035 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf
[2018-11-10 04:51:47,043 INFO L110 SettingsManager]: Loading preferences was successful
[2018-11-10 04:51:47,043 INFO L112 SettingsManager]: Preferences different from defaults after loading the file:
[2018-11-10 04:51:47,044 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-11-10 04:51:47,044 INFO L133 SettingsManager]: * Create parallel compositions if possible=false
[2018-11-10 04:51:47,044 INFO L133 SettingsManager]: * Use SBE=true
[2018-11-10 04:51:47,044 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2018-11-10 04:51:47,044 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2018-11-10 04:51:47,044 INFO L133 SettingsManager]: * Use old map elimination=false
[2018-11-10 04:51:47,045 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false
[2018-11-10 04:51:47,045 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true
[2018-11-10 04:51:47,045 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2018-11-10 04:51:47,045 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-11-10 04:51:47,045 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2018-11-10 04:51:47,045 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true
[2018-11-10 04:51:47,045 INFO L133 SettingsManager]: * Check division by zero=IGNORE
[2018-11-10 04:51:47,046 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2018-11-10 04:51:47,046 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2018-11-10 04:51:47,046 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2018-11-10 04:51:47,046 INFO L133 SettingsManager]: * Check if freed pointer was valid=false
[2018-11-10 04:51:47,046 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false
[2018-11-10 04:51:47,046 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2018-11-10 04:51:47,046 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-11-10 04:51:47,046 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements
[2018-11-10 04:51:47,047 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump
[2018-11-10 04:51:47,047 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-11-10 04:51:47,047 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL
[2018-11-10 04:51:47,047 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto
[2018-11-10 04:51:47,048 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2018-11-10 04:51:47,048 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR
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/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/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 -> 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41
[2018-11-10 04:51:47,075 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2018-11-10 04:51:47,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-11-10 04:51:47,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-11-10 04:51:47,088 INFO L271 PluginConnector]: Initializing CDTParser...
[2018-11-10 04:51:47,088 INFO L276 PluginConnector]: CDTParser initialized
[2018-11-10 04:51:47,088 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c
[2018-11-10 04:51:47,131 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/data/21f8f4297/6846d8da633d487f8c200417b9554341/FLAG2d3cbe8cc
[2018-11-10 04:51:47,430 INFO L298 CDTParser]: Found 1 translation units.
[2018-11-10 04:51:47,431 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c
[2018-11-10 04:51:47,435 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/data/21f8f4297/6846d8da633d487f8c200417b9554341/FLAG2d3cbe8cc
[2018-11-10 04:51:47,445 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/data/21f8f4297/6846d8da633d487f8c200417b9554341
[2018-11-10 04:51:47,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-11-10 04:51:47,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2018-11-10 04:51:47,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-11-10 04:51:47,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-11-10 04:51:47,452 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized
[2018-11-10 04:51:47,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372d3e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47, skipping insertion in model container
[2018-11-10 04:51:47,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2018-11-10 04:51:47,472 INFO L174 MainTranslator]: Built tables and reachable declarations
[2018-11-10 04:51:47,570 INFO L202 PostProcessor]: Analyzing one entry point: main
[2018-11-10 04:51:47,573 INFO L189 MainTranslator]: Completed pre-run
[2018-11-10 04:51:47,582 INFO L202 PostProcessor]: Analyzing one entry point: main
[2018-11-10 04:51:47,590 INFO L193 MainTranslator]: Completed translation
[2018-11-10 04:51:47,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47 WrapperNode
[2018-11-10 04:51:47,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-11-10 04:51:47,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-11-10 04:51:47,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-11-10 04:51:47,591 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized
[2018-11-10 04:51:47,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-11-10 04:51:47,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-11-10 04:51:47,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2018-11-10 04:51:47,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized
[2018-11-10 04:51:47,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (1/1) ...
[2018-11-10 04:51:47,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-11-10 04:51:47,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-11-10 04:51:47,628 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2018-11-10 04:51:47,628 INFO L276 PluginConnector]: RCFGBuilder initialized
[2018-11-10 04:51:47,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/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
[2018-11-10 04:51:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-11-10 04:51:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-11-10 04:51:47,782 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-11-10 04:51:47,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:51:47 BoogieIcfgContainer
[2018-11-10 04:51:47,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-11-10 04:51:47,783 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2018-11-10 04:51:47,783 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2018-11-10 04:51:47,786 INFO L276 PluginConnector]: BuchiAutomizer initialized
[2018-11-10 04:51:47,786 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2018-11-10 04:51:47,786 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 04:51:47" (1/3) ...
[2018-11-10 04:51:47,787 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a8bf3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 04:51:47, skipping insertion in model container
[2018-11-10 04:51:47,787 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2018-11-10 04:51:47,787 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:47" (2/3) ...
[2018-11-10 04:51:47,788 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a8bf3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 04:51:47, skipping insertion in model container
[2018-11-10 04:51:47,788 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2018-11-10 04:51:47,788 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:51:47" (3/3) ...
[2018-11-10 04:51:47,789 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c
[2018-11-10 04:51:47,823 INFO L135 ementStrategyFactory]: Using default assertion order modulation
[2018-11-10 04:51:47,824 INFO L374 BuchiCegarLoop]: Interprodecural is true
[2018-11-10 04:51:47,824 INFO L375 BuchiCegarLoop]: Hoare is false
[2018-11-10 04:51:47,824 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2018-11-10 04:51:47,824 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2018-11-10 04:51:47,824 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-11-10 04:51:47,824 INFO L379 BuchiCegarLoop]: Difference is false
[2018-11-10 04:51:47,824 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-11-10 04:51:47,824 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2018-11-10 04:51:47,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states.
[2018-11-10 04:51:47,847 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2018-11-10 04:51:47,847 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2018-11-10 04:51:47,847 INFO L119 BuchiIsEmpty]: Starting construction of run
[2018-11-10 04:51:47,851 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2018-11-10 04:51:47,852 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2018-11-10 04:51:47,852 INFO L442 BuchiCegarLoop]: ======== Iteration 1============
[2018-11-10 04:51:47,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states.
[2018-11-10 04:51:47,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2018-11-10 04:51:47,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2018-11-10 04:51:47,853 INFO L119 BuchiIsEmpty]: Starting construction of run
[2018-11-10 04:51:47,853 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2018-11-10 04:51:47,853 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2018-11-10 04:51:47,858 INFO L793 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L19-2true
[2018-11-10 04:51:47,858 INFO L795 eck$LassoCheckResult]: Loop: 7#L19-2true assume true; 8#L18-1true assume !!(main_~x~0 > 0 && main_~y~0 > 0); 10#L19true assume !(main_#t~nondet2 != 0);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 7#L19-2true
[2018-11-10 04:51:47,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:47,862 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times
[2018-11-10 04:51:47,863 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-10 04:51:47,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-10 04:51:47,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:47,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-10 04:51:47,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:47,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:47,920 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 1 times
[2018-11-10 04:51:47,920 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-10 04:51:47,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-10 04:51:47,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:47,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-10 04:51:47,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:47,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:47,931 INFO L82 PathProgramCache]: Analyzing trace with hash 28694888, now seen corresponding path program 1 times
[2018-11-10 04:51:47,931 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-10 04:51:47,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-10 04:51:47,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:47,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-10 04:51:47,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:47,984 INFO L214 LassoAnalysis]: Preferences:
[2018-11-10 04:51:47,985 INFO L124 ssoRankerPreferences]: Compute integeral hull: false
[2018-11-10 04:51:47,985 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2018-11-10 04:51:47,986 INFO L126 ssoRankerPreferences]: Term annotations enabled: false
[2018-11-10 04:51:47,986 INFO L127 ssoRankerPreferences]: Use exernal solver: true
[2018-11-10 04:51:47,986 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:47,986 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false
[2018-11-10 04:51:47,986 INFO L130 ssoRankerPreferences]: Path of dumped script:
[2018-11-10 04:51:47,986 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c_Iteration1_Loop
[2018-11-10 04:51:47,986 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank
[2018-11-10 04:51:47,987 INFO L280 LassoAnalysis]: Starting lasso preprocessing...
[2018-11-10 04:51:48,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,151 INFO L298 LassoAnalysis]: Preprocessing complete.
[2018-11-10 04:51:48,151 INFO L410 LassoAnalysis]: Checking for nontermination...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/z3
Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:48,154 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2018-11-10 04:51:48,154 INFO L163 nArgumentSynthesizer]: Using integer mode.
[2018-11-10 04:51:48,166 INFO L443 LassoAnalysis]: Proved nontermination for one component.
[2018-11-10 04:51:48,166 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet3=4} Honda state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet3=4} Generalized eigenvectors: [] Lambdas: [] Nus: []
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/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
[2018-11-10 04:51:48,182 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2018-11-10 04:51:48,182 INFO L163 nArgumentSynthesizer]: Using integer mode.
[2018-11-10 04:51:48,199 INFO L443 LassoAnalysis]: Proved nontermination for one component.
[2018-11-10 04:51:48,199 INFO L446 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/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/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
[2018-11-10 04:51:48,201 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2018-11-10 04:51:48,202 INFO L163 nArgumentSynthesizer]: Using integer mode.
[2018-11-10 04:51:48,218 INFO L443 LassoAnalysis]: Proved nontermination for one component.
[2018-11-10 04:51:48,218 INFO L446 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/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/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
[2018-11-10 04:51:48,220 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2018-11-10 04:51:48,220 INFO L163 nArgumentSynthesizer]: Using integer mode.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/z3
Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:48,238 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2018-11-10 04:51:48,238 INFO L163 nArgumentSynthesizer]: Using integer mode.
[2018-11-10 04:51:48,255 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2018-11-10 04:51:48,256 INFO L214 LassoAnalysis]: Preferences:
[2018-11-10 04:51:48,256 INFO L124 ssoRankerPreferences]: Compute integeral hull: false
[2018-11-10 04:51:48,257 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2018-11-10 04:51:48,257 INFO L126 ssoRankerPreferences]: Term annotations enabled: false
[2018-11-10 04:51:48,257 INFO L127 ssoRankerPreferences]: Use exernal solver: false
[2018-11-10 04:51:48,257 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:48,257 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false
[2018-11-10 04:51:48,257 INFO L130 ssoRankerPreferences]: Path of dumped script:
[2018-11-10 04:51:48,257 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c_Iteration1_Loop
[2018-11-10 04:51:48,257 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank
[2018-11-10 04:51:48,257 INFO L280 LassoAnalysis]: Starting lasso preprocessing...
[2018-11-10 04:51:48,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,338 INFO L298 LassoAnalysis]: Preprocessing complete.
[2018-11-10 04:51:48,341 INFO L496 LassoAnalysis]: Using template 'affine'.
[2018-11-10 04:51:48,342 INFO L122 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
[2018-11-10 04:51:48,343 INFO L339 nArgumentSynthesizer]: Template has degree 0.
[2018-11-10 04:51:48,343 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2018-11-10 04:51:48,344 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts
[2018-11-10 04:51:48,344 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts
[2018-11-10 04:51:48,344 INFO L207 nArgumentSynthesizer]: 2 template conjuncts.
[2018-11-10 04:51:48,346 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2018-11-10 04:51:48,346 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2018-11-10 04:51:48,353 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings.
[2018-11-10 04:51:48,354 INFO L122 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
[2018-11-10 04:51:48,354 INFO L339 nArgumentSynthesizer]: Template has degree 0.
[2018-11-10 04:51:48,354 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts
[2018-11-10 04:51:48,355 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts
[2018-11-10 04:51:48,355 INFO L207 nArgumentSynthesizer]: 2 template conjuncts.
[2018-11-10 04:51:48,357 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2018-11-10 04:51:48,357 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2018-11-10 04:51:48,362 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings.
[2018-11-10 04:51:48,362 INFO L122 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
[2018-11-10 04:51:48,363 INFO L339 nArgumentSynthesizer]: Template has degree 0.
[2018-11-10 04:51:48,363 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts
[2018-11-10 04:51:48,363 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts
[2018-11-10 04:51:48,363 INFO L207 nArgumentSynthesizer]: 2 template conjuncts.
[2018-11-10 04:51:48,365 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2018-11-10 04:51:48,365 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2018-11-10 04:51:48,373 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings.
[2018-11-10 04:51:48,373 INFO L122 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
[2018-11-10 04:51:48,374 INFO L339 nArgumentSynthesizer]: Template has degree 0.
[2018-11-10 04:51:48,374 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2018-11-10 04:51:48,374 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts
[2018-11-10 04:51:48,374 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts
[2018-11-10 04:51:48,374 INFO L207 nArgumentSynthesizer]: 2 template conjuncts.
[2018-11-10 04:51:48,375 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2018-11-10 04:51:48,375 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2018-11-10 04:51:48,379 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2018-11-10 04:51:48,382 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2018-11-10 04:51:48,382 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2018-11-10 04:51:48,384 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants...
[2018-11-10 04:51:48,384 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2018-11-10 04:51:48,384 INFO L517 LassoAnalysis]: Proved termination.
[2018-11-10 04:51:48,384 INFO L519 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0
Supporting invariants []
[2018-11-10 04:51:48,386 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2018-11-10 04:51:48,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:51:48,432 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-11-10 04:51:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:51:48,441 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-11-10 04:51:48,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-10 04:51:48,463 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
[2018-11-10 04:51:48,464 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 4 states.
[2018-11-10 04:51:48,497 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 4 states. Result 32 states and 37 transitions. Complement of second has 7 states.
[2018-11-10 04:51:48,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2018-11-10 04:51:48,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2018-11-10 04:51:48,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions.
[2018-11-10 04:51:48,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 3 letters.
[2018-11-10 04:51:48,501 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:48,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 3 letters.
[2018-11-10 04:51:48,501 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:48,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 6 letters.
[2018-11-10 04:51:48,501 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:48,502 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions.
[2018-11-10 04:51:48,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2018-11-10 04:51:48,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions.
[2018-11-10 04:51:48,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6
[2018-11-10 04:51:48,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7
[2018-11-10 04:51:48,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions.
[2018-11-10 04:51:48,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2018-11-10 04:51:48,507 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions.
[2018-11-10 04:51:48,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions.
[2018-11-10 04:51:48,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10.
[2018-11-10 04:51:48,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2018-11-10 04:51:48,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions.
[2018-11-10 04:51:48,524 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions.
[2018-11-10 04:51:48,524 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions.
[2018-11-10 04:51:48,524 INFO L442 BuchiCegarLoop]: ======== Iteration 2============
[2018-11-10 04:51:48,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions.
[2018-11-10 04:51:48,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2018-11-10 04:51:48,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2018-11-10 04:51:48,524 INFO L119 BuchiIsEmpty]: Starting construction of run
[2018-11-10 04:51:48,525 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2018-11-10 04:51:48,525 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2018-11-10 04:51:48,525 INFO L793 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 83#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 84#L19-2 assume true; 87#L18-1
[2018-11-10 04:51:48,525 INFO L795 eck$LassoCheckResult]: Loop: 87#L18-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 90#L19 assume main_#t~nondet2 != 0;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 86#L19-2 assume true; 87#L18-1
[2018-11-10 04:51:48,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:48,525 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times
[2018-11-10 04:51:48,525 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-10 04:51:48,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-10 04:51:48,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-10 04:51:48,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:48,529 INFO L82 PathProgramCache]: Analyzing trace with hash 41794, now seen corresponding path program 1 times
[2018-11-10 04:51:48,529 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-10 04:51:48,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-10 04:51:48,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-10 04:51:48,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:48,534 INFO L82 PathProgramCache]: Analyzing trace with hash 889541472, now seen corresponding path program 1 times
[2018-11-10 04:51:48,535 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-10 04:51:48,535 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-10 04:51:48,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-10 04:51:48,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,550 INFO L214 LassoAnalysis]: Preferences:
[2018-11-10 04:51:48,550 INFO L124 ssoRankerPreferences]: Compute integeral hull: false
[2018-11-10 04:51:48,550 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2018-11-10 04:51:48,550 INFO L126 ssoRankerPreferences]: Term annotations enabled: false
[2018-11-10 04:51:48,550 INFO L127 ssoRankerPreferences]: Use exernal solver: true
[2018-11-10 04:51:48,550 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:48,550 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false
[2018-11-10 04:51:48,551 INFO L130 ssoRankerPreferences]: Path of dumped script:
[2018-11-10 04:51:48,551 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c_Iteration2_Loop
[2018-11-10 04:51:48,551 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank
[2018-11-10 04:51:48,551 INFO L280 LassoAnalysis]: Starting lasso preprocessing...
[2018-11-10 04:51:48,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,629 INFO L298 LassoAnalysis]: Preprocessing complete.
[2018-11-10 04:51:48,630 INFO L410 LassoAnalysis]: Checking for nontermination...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/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
[2018-11-10 04:51:48,636 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2018-11-10 04:51:48,636 INFO L163 nArgumentSynthesizer]: Using integer mode.
[2018-11-10 04:51:48,653 INFO L443 LassoAnalysis]: Proved nontermination for one component.
[2018-11-10 04:51:48,654 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/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
[2018-11-10 04:51:48,656 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2018-11-10 04:51:48,657 INFO L163 nArgumentSynthesizer]: Using integer mode.
[2018-11-10 04:51:48,673 INFO L443 LassoAnalysis]: Proved nontermination for one component.
[2018-11-10 04:51:48,673 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/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
[2018-11-10 04:51:48,680 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2018-11-10 04:51:48,680 INFO L163 nArgumentSynthesizer]: Using integer mode.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/z3
Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:48,698 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2018-11-10 04:51:48,698 INFO L163 nArgumentSynthesizer]: Using integer mode.
[2018-11-10 04:51:48,726 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2018-11-10 04:51:48,727 INFO L214 LassoAnalysis]: Preferences:
[2018-11-10 04:51:48,727 INFO L124 ssoRankerPreferences]: Compute integeral hull: false
[2018-11-10 04:51:48,727 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2018-11-10 04:51:48,728 INFO L126 ssoRankerPreferences]: Term annotations enabled: false
[2018-11-10 04:51:48,728 INFO L127 ssoRankerPreferences]: Use exernal solver: false
[2018-11-10 04:51:48,728 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:48,728 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false
[2018-11-10 04:51:48,728 INFO L130 ssoRankerPreferences]: Path of dumped script:
[2018-11-10 04:51:48,728 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c_Iteration2_Loop
[2018-11-10 04:51:48,728 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank
[2018-11-10 04:51:48,728 INFO L280 LassoAnalysis]: Starting lasso preprocessing...
[2018-11-10 04:51:48,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,788 INFO L298 LassoAnalysis]: Preprocessing complete.
[2018-11-10 04:51:48,788 INFO L496 LassoAnalysis]: Using template 'affine'.
[2018-11-10 04:51:48,789 INFO L122 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
[2018-11-10 04:51:48,789 INFO L339 nArgumentSynthesizer]: Template has degree 0.
[2018-11-10 04:51:48,790 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts
[2018-11-10 04:51:48,790 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts
[2018-11-10 04:51:48,790 INFO L207 nArgumentSynthesizer]: 2 template conjuncts.
[2018-11-10 04:51:48,791 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2018-11-10 04:51:48,791 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2018-11-10 04:51:48,796 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings.
[2018-11-10 04:51:48,796 INFO L122 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
[2018-11-10 04:51:48,797 INFO L339 nArgumentSynthesizer]: Template has degree 0.
[2018-11-10 04:51:48,797 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts
[2018-11-10 04:51:48,797 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts
[2018-11-10 04:51:48,797 INFO L207 nArgumentSynthesizer]: 2 template conjuncts.
[2018-11-10 04:51:48,799 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2018-11-10 04:51:48,799 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2018-11-10 04:51:48,803 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings.
[2018-11-10 04:51:48,804 INFO L122 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
[2018-11-10 04:51:48,804 INFO L339 nArgumentSynthesizer]: Template has degree 0.
[2018-11-10 04:51:48,804 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2018-11-10 04:51:48,805 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts
[2018-11-10 04:51:48,805 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts
[2018-11-10 04:51:48,805 INFO L207 nArgumentSynthesizer]: 2 template conjuncts.
[2018-11-10 04:51:48,805 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2018-11-10 04:51:48,805 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2018-11-10 04:51:48,808 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2018-11-10 04:51:48,811 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2018-11-10 04:51:48,811 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2018-11-10 04:51:48,812 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants...
[2018-11-10 04:51:48,812 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2018-11-10 04:51:48,812 INFO L517 LassoAnalysis]: Proved termination.
[2018-11-10 04:51:48,812 INFO L519 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0
Supporting invariants []
[2018-11-10 04:51:48,812 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2018-11-10 04:51:48,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:51:48,825 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-11-10 04:51:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:51:48,829 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-11-10 04:51:48,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-10 04:51:48,851 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2018-11-10 04:51:48,851 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states.
[2018-11-10 04:51:48,861 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 23 states and 28 transitions. Complement of second has 7 states.
[2018-11-10 04:51:48,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2018-11-10 04:51:48,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2018-11-10 04:51:48,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions.
[2018-11-10 04:51:48,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters.
[2018-11-10 04:51:48,862 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:48,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters.
[2018-11-10 04:51:48,863 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:48,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters.
[2018-11-10 04:51:48,863 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:48,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions.
[2018-11-10 04:51:48,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2018-11-10 04:51:48,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 16 states and 20 transitions.
[2018-11-10 04:51:48,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6
[2018-11-10 04:51:48,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6
[2018-11-10 04:51:48,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions.
[2018-11-10 04:51:48,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2018-11-10 04:51:48,865 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions.
[2018-11-10 04:51:48,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions.
[2018-11-10 04:51:48,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2018-11-10 04:51:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states.
[2018-11-10 04:51:48,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions.
[2018-11-10 04:51:48,867 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions.
[2018-11-10 04:51:48,867 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions.
[2018-11-10 04:51:48,867 INFO L442 BuchiCegarLoop]: ======== Iteration 3============
[2018-11-10 04:51:48,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions.
[2018-11-10 04:51:48,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2018-11-10 04:51:48,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2018-11-10 04:51:48,868 INFO L119 BuchiIsEmpty]: Starting construction of run
[2018-11-10 04:51:48,868 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1]
[2018-11-10 04:51:48,868 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2018-11-10 04:51:48,868 INFO L793 eck$LassoCheckResult]: Stem: 161#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 160#L19-2 assume true; 166#L18-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 165#L19 assume !(main_#t~nondet2 != 0);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 171#L19-2 assume true; 162#L18-1
[2018-11-10 04:51:48,868 INFO L795 eck$LassoCheckResult]: Loop: 162#L18-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 163#L19 assume main_#t~nondet2 != 0;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 169#L19-2 assume true; 162#L18-1
[2018-11-10 04:51:48,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:48,869 INFO L82 PathProgramCache]: Analyzing trace with hash 889541534, now seen corresponding path program 2 times
[2018-11-10 04:51:48,869 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-10 04:51:48,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-10 04:51:48,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-10 04:51:48,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:48,875 INFO L82 PathProgramCache]: Analyzing trace with hash 41794, now seen corresponding path program 2 times
[2018-11-10 04:51:48,875 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-10 04:51:48,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-10 04:51:48,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,876 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:48,879 INFO L82 PathProgramCache]: Analyzing trace with hash 383635077, now seen corresponding path program 1 times
[2018-11-10 04:51:48,879 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-10 04:51:48,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-10 04:51:48,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,880 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-10 04:51:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:51:48,919 INFO L214 LassoAnalysis]: Preferences:
[2018-11-10 04:51:48,919 INFO L124 ssoRankerPreferences]: Compute integeral hull: false
[2018-11-10 04:51:48,920 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2018-11-10 04:51:48,920 INFO L126 ssoRankerPreferences]: Term annotations enabled: false
[2018-11-10 04:51:48,920 INFO L127 ssoRankerPreferences]: Use exernal solver: true
[2018-11-10 04:51:48,920 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:48,920 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false
[2018-11-10 04:51:48,920 INFO L130 ssoRankerPreferences]: Path of dumped script:
[2018-11-10 04:51:48,920 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c_Iteration3_Loop
[2018-11-10 04:51:48,920 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank
[2018-11-10 04:51:48,920 INFO L280 LassoAnalysis]: Starting lasso preprocessing...
[2018-11-10 04:51:48,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:48,971 INFO L298 LassoAnalysis]: Preprocessing complete.
[2018-11-10 04:51:48,971 INFO L410 LassoAnalysis]: Checking for nontermination...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/z3
Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:48,974 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2018-11-10 04:51:48,974 INFO L163 nArgumentSynthesizer]: Using integer mode.
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03b6f9f8-a7ab-4bad-ab2d-21371f8390ac/bin-2019/uautomizer/z3
Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:48,992 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2018-11-10 04:51:48,992 INFO L163 nArgumentSynthesizer]: Using integer mode.
[2018-11-10 04:51:49,010 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2018-11-10 04:51:49,011 INFO L214 LassoAnalysis]: Preferences:
[2018-11-10 04:51:49,011 INFO L124 ssoRankerPreferences]: Compute integeral hull: false
[2018-11-10 04:51:49,011 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2018-11-10 04:51:49,011 INFO L126 ssoRankerPreferences]: Term annotations enabled: false
[2018-11-10 04:51:49,011 INFO L127 ssoRankerPreferences]: Use exernal solver: false
[2018-11-10 04:51:49,011 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-11-10 04:51:49,011 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false
[2018-11-10 04:51:49,011 INFO L130 ssoRankerPreferences]: Path of dumped script:
[2018-11-10 04:51:49,011 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c_Iteration3_Loop
[2018-11-10 04:51:49,012 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank
[2018-11-10 04:51:49,012 INFO L280 LassoAnalysis]: Starting lasso preprocessing...
[2018-11-10 04:51:49,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:49,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:49,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:49,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:49,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2018-11-10 04:51:49,053 INFO L298 LassoAnalysis]: Preprocessing complete.
[2018-11-10 04:51:49,054 INFO L496 LassoAnalysis]: Using template 'affine'.
[2018-11-10 04:51:49,054 INFO L122 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
[2018-11-10 04:51:49,054 INFO L339 nArgumentSynthesizer]: Template has degree 0.
[2018-11-10 04:51:49,054 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2018-11-10 04:51:49,054 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts
[2018-11-10 04:51:49,055 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts
[2018-11-10 04:51:49,055 INFO L207 nArgumentSynthesizer]: 2 template conjuncts.
[2018-11-10 04:51:49,055 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2018-11-10 04:51:49,055 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2018-11-10 04:51:49,057 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2018-11-10 04:51:49,058 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2018-11-10 04:51:49,058 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2018-11-10 04:51:49,058 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants...
[2018-11-10 04:51:49,058 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2018-11-10 04:51:49,058 INFO L517 LassoAnalysis]: Proved termination.
[2018-11-10 04:51:49,058 INFO L519 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0
Supporting invariants []
[2018-11-10 04:51:49,059 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2018-11-10 04:51:49,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:51:49,079 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-11-10 04:51:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:51:49,081 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-11-10 04:51:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-10 04:51:49,100 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2018-11-10 04:51:49,100 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states.
[2018-11-10 04:51:49,109 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 20 states and 26 transitions. Complement of second has 7 states.
[2018-11-10 04:51:49,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2018-11-10 04:51:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2018-11-10 04:51:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions.
[2018-11-10 04:51:49,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters.
[2018-11-10 04:51:49,110 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:49,110 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted
[2018-11-10 04:51:49,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:51:49,125 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-11-10 04:51:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:51:49,129 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-11-10 04:51:49,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-10 04:51:49,154 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates
[2018-11-10 04:51:49,154 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states.
[2018-11-10 04:51:49,168 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 19 states and 25 transitions. Complement of second has 7 states.
[2018-11-10 04:51:49,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2018-11-10 04:51:49,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2018-11-10 04:51:49,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions.
[2018-11-10 04:51:49,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 3 letters.
[2018-11-10 04:51:49,169 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:49,169 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted
[2018-11-10 04:51:49,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:51:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:51:49,180 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-11-10 04:51:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:51:49,183 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-11-10 04:51:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-10 04:51:49,195 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2018-11-10 04:51:49,195 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states.
[2018-11-10 04:51:49,205 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 27 states and 34 transitions. Complement of second has 6 states.
[2018-11-10 04:51:49,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2018-11-10 04:51:49,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2018-11-10 04:51:49,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions.
[2018-11-10 04:51:49,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 3 letters.
[2018-11-10 04:51:49,206 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:49,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 3 letters.
[2018-11-10 04:51:49,206 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:49,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 6 letters.
[2018-11-10 04:51:49,207 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2018-11-10 04:51:49,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions.
[2018-11-10 04:51:49,209 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2018-11-10 04:51:49,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions.
[2018-11-10 04:51:49,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2018-11-10 04:51:49,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2018-11-10 04:51:49,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2018-11-10 04:51:49,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2018-11-10 04:51:49,209 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2018-11-10 04:51:49,209 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2018-11-10 04:51:49,209 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2018-11-10 04:51:49,210 INFO L442 BuchiCegarLoop]: ======== Iteration 4============
[2018-11-10 04:51:49,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2018-11-10 04:51:49,210 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2018-11-10 04:51:49,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2018-11-10 04:51:49,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 04:51:49 BoogieIcfgContainer
[2018-11-10 04:51:49,214 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2018-11-10 04:51:49,214 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2018-11-10 04:51:49,215 INFO L271 PluginConnector]: Initializing Witness Printer...
[2018-11-10 04:51:49,215 INFO L276 PluginConnector]: Witness Printer initialized
[2018-11-10 04:51:49,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:51:47" (3/4) ...
[2018-11-10 04:51:49,218 INFO L147 WitnessPrinter]: No result that supports witness generation found
[2018-11-10 04:51:49,218 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2018-11-10 04:51:49,218 INFO L168 Benchmark]: Toolchain (without parser) took 1769.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 962.9 MB in the beginning and 914.1 MB in the end (delta: 48.8 MB). Peak memory consumption was 202.4 MB. Max. memory is 11.5 GB.
[2018-11-10 04:51:49,219 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-11-10 04:51:49,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.10 ms. Allocated memory is still 1.0 GB. Free memory was 962.9 MB in the beginning and 952.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
[2018-11-10 04:51:49,220 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.98 ms. Allocated memory is still 1.0 GB. Free memory is still 952.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-11-10 04:51:49,220 INFO L168 Benchmark]: Boogie Preprocessor took 14.07 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 946.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB.
[2018-11-10 04:51:49,221 INFO L168 Benchmark]: RCFGBuilder took 154.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB.
[2018-11-10 04:51:49,221 INFO L168 Benchmark]: BuchiAutomizer took 1430.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 914.1 MB in the end (delta: 228.5 MB). Peak memory consumption was 228.5 MB. Max. memory is 11.5 GB.
[2018-11-10 04:51:49,222 INFO L168 Benchmark]: Witness Printer took 3.33 ms. Allocated memory is still 1.2 GB. Free memory is still 914.1 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-11-10 04:51:49,223 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB.
* CACSL2BoogieTranslator took 141.10 ms. Allocated memory is still 1.0 GB. Free memory was 962.9 MB in the beginning and 952.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
* Boogie Procedure Inliner took 22.98 ms. Allocated memory is still 1.0 GB. Free memory is still 952.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
* Boogie Preprocessor took 14.07 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 946.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB.
* RCFGBuilder took 154.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB.
* BuchiAutomizer took 1430.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 914.1 MB in the end (delta: 228.5 MB). Peak memory consumption was 228.5 MB. Max. memory is 11.5 GB.
* Witness Printer took 3.33 ms. Allocated memory is still 1.2 GB. Free memory is still 914.1 MB. There was no memory consumed. Max. memory is 11.5 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 1.4s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 34 SDtfs, 29 SDslu, 19 SDs, 0 SdLazy, 33 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax168 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
Received shutdown request...