./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:34:58,273 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:34:58,275 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:34:58,283 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:34:58,283 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:34:58,284 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:34:58,285 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:34:58,286 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:34:58,287 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:34:58,288 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:34:58,289 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:34:58,289 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:34:58,289 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:34:58,290 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:34:58,291 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:34:58,292 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:34:58,292 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:34:58,294 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:34:58,295 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:34:58,296 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:34:58,297 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:34:58,298 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:34:58,299 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:34:58,300 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:34:58,300 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:34:58,300 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:34:58,301 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:34:58,302 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:34:58,302 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:34:58,303 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:34:58,303 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:34:58,304 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:34:58,304 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:34:58,304 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:34:58,305 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:34:58,305 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:34:58,306 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 12:34:58,317 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:34:58,318 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:34:58,318 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:34:58,319 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:34:58,319 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:34:58,319 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:34:58,319 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:34:58,319 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:34:58,319 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:34:58,320 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:34:58,320 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:34:58,320 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:34:58,320 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:34:58,320 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:34:58,320 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:34:58,320 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:34:58,320 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:34:58,321 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:34:58,321 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:34:58,321 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:34:58,321 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:34:58,321 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:34:58,321 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:34:58,321 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:34:58,322 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:34:58,322 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:34:58,322 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:34:58,322 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:34:58,322 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:34:58,323 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_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2018-11-28 12:34:58,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:34:58,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:34:58,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:34:58,355 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:34:58,355 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:34:58,355 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-28 12:34:58,394 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/data/abbec0fc3/26a319146ff54799ac3663f3c6936a84/FLAGdc71245ba [2018-11-28 12:34:58,702 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:34:58,703 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-28 12:34:58,708 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/data/abbec0fc3/26a319146ff54799ac3663f3c6936a84/FLAGdc71245ba [2018-11-28 12:34:58,718 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/data/abbec0fc3/26a319146ff54799ac3663f3c6936a84 [2018-11-28 12:34:58,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:34:58,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:34:58,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:34:58,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:34:58,723 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:34:58,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e991360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58, skipping insertion in model container [2018-11-28 12:34:58,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:34:58,739 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:34:58,833 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:34:58,836 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:34:58,846 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:34:58,854 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:34:58,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58 WrapperNode [2018-11-28 12:34:58,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:34:58,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:34:58,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:34:58,855 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:34:58,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:34:58,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:34:58,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:34:58,876 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:34:58,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (1/1) ... [2018-11-28 12:34:58,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:34:58,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:34:58,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:34:58,889 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:34:58,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:34:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:34:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:34:59,039 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:34:59,039 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 12:34:59,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:34:59 BoogieIcfgContainer [2018-11-28 12:34:59,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:34:59,040 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:34:59,040 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:34:59,042 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:34:59,042 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:34:59,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:34:58" (1/3) ... [2018-11-28 12:34:59,043 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@540ebe42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:34:59, skipping insertion in model container [2018-11-28 12:34:59,043 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:34:59,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:34:58" (2/3) ... [2018-11-28 12:34:59,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@540ebe42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:34:59, skipping insertion in model container [2018-11-28 12:34:59,044 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:34:59,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:34:59" (3/3) ... [2018-11-28 12:34:59,045 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-28 12:34:59,085 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:34:59,085 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:34:59,085 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:34:59,085 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:34:59,086 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:34:59,086 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:34:59,086 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:34:59,086 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:34:59,086 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:34:59,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 12:34:59,105 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:34:59,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:34:59,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:34:59,110 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:34:59,110 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 12:34:59,111 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:34:59,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 12:34:59,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:34:59,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:34:59,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:34:59,112 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:34:59,112 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 12:34:59,118 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L23-2true [2018-11-28 12:34:59,119 INFO L796 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 5#L21true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 4#L23-2true [2018-11-28 12:34:59,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:34:59,124 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 12:34:59,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:34:59,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:34:59,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:34:59,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:34:59,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-28 12:34:59,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:34:59,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:34:59,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:34:59,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:34:59,200 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-28 12:34:59,200 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:34:59,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:34:59,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:34:59,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,256 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:34:59,257 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:34:59,257 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:34:59,257 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:34:59,257 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:34:59,257 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:34:59,257 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:34:59,258 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:34:59,258 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 12:34:59,258 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:34:59,258 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:34:59,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,387 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:34:59,387 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:34:59,394 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:34:59,395 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:34:59,414 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:34:59,414 INFO L448 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_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:34:59,417 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:34:59,417 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:34:59,433 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:34:59,433 INFO L448 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_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:34:59,436 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:34:59,436 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:34:59,453 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:34:59,453 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:34:59,469 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:34:59,470 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:34:59,470 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:34:59,470 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:34:59,470 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:34:59,471 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:34:59,471 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:34:59,471 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:34:59,471 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:34:59,471 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 12:34:59,471 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:34:59,471 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:34:59,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,535 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:34:59,538 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:34:59,539 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 [2018-11-28 12:34:59,540 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:34:59,541 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:34:59,541 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:34:59,541 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:34:59,544 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:34:59,544 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:34:59,551 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:34:59,552 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 [2018-11-28 12:34:59,552 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:34:59,552 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:34:59,552 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:34:59,553 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:34:59,554 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:34:59,555 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:34:59,561 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:34:59,561 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 [2018-11-28 12:34:59,562 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:34:59,562 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:34:59,562 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:34:59,562 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:34:59,563 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:34:59,563 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:34:59,563 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:34:59,568 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:34:59,570 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:34:59,570 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:34:59,572 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:34:59,572 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:34:59,572 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:34:59,573 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 12:34:59,574 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:34:59,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:34:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:34:59,608 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:34:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:34:59,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:34:59,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:34:59,642 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 [2018-11-28 12:34:59,642 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-28 12:34:59,687 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 37 states and 48 transitions. Complement of second has 8 states. [2018-11-28 12:34:59,688 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 [2018-11-28 12:34:59,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 12:34:59,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-11-28 12:34:59,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-28 12:34:59,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:34:59,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 12:34:59,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:34:59,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-28 12:34:59,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:34:59,693 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2018-11-28 12:34:59,695 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 12:34:59,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 13 states and 19 transitions. [2018-11-28 12:34:59,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-28 12:34:59,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-28 12:34:59,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-11-28 12:34:59,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:34:59,699 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-11-28 12:34:59,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-11-28 12:34:59,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-11-28 12:34:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 12:34:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2018-11-28 12:34:59,717 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-11-28 12:34:59,717 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-11-28 12:34:59,717 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 12:34:59,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2018-11-28 12:34:59,718 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 12:34:59,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:34:59,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:34:59,718 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 12:34:59,718 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:34:59,718 INFO L794 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 90#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 82#L21 [2018-11-28 12:34:59,718 INFO L796 eck$LassoCheckResult]: Loop: 82#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 83#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 87#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 82#L21 [2018-11-28 12:34:59,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:34:59,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 12:34:59,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:34:59,719 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:34:59,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:34:59,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:34:59,726 INFO L82 PathProgramCache]: Analyzing trace with hash 44774, now seen corresponding path program 1 times [2018-11-28 12:34:59,726 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:34:59,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:34:59,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:34:59,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:34:59,732 INFO L82 PathProgramCache]: Analyzing trace with hash 29865565, now seen corresponding path program 1 times [2018-11-28 12:34:59,732 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:34:59,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:34:59,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:34:59,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:34:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:34:59,764 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:34:59,764 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:34:59,764 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:34:59,764 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:34:59,764 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:34:59,764 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:34:59,764 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:34:59,764 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:34:59,765 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 12:34:59,765 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:34:59,765 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:34:59,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:34:59,857 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:34:59,857 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:34:59,859 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:34:59,859 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:34:59,875 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:34:59,875 INFO L448 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_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:34:59,878 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:34:59,878 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:34:59,881 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:34:59,882 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:34:59,897 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:34:59,897 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:34:59,913 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:34:59,913 INFO L448 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_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:34:59,917 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:34:59,917 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:34:59,944 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:34:59,945 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:34:59,993 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:34:59,994 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:34:59,994 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:34:59,995 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:34:59,995 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:34:59,995 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:34:59,995 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:34:59,995 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:34:59,995 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:34:59,995 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 12:34:59,995 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:34:59,995 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:34:59,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,096 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:35:00,096 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:35:00,097 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 [2018-11-28 12:35:00,097 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,098 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,098 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,098 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,099 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:35:00,099 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:35:00,102 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:00,103 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 [2018-11-28 12:35:00,103 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,103 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:00,104 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,104 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,104 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,104 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:00,104 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:00,105 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:00,105 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 [2018-11-28 12:35:00,105 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,105 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,106 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,106 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,106 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:35:00,107 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:35:00,110 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:00,110 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 [2018-11-28 12:35:00,110 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,111 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:00,111 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,111 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,111 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,111 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:00,112 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:00,114 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:35:00,116 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:35:00,116 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:35:00,116 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:35:00,116 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:35:00,117 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:35:00,117 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-28 12:35:00,117 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:35:00,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:00,129 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:00,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:00,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:35:00,147 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 [2018-11-28 12:35:00,147 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-28 12:35:00,164 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 31 states and 49 transitions. Complement of second has 6 states. [2018-11-28 12:35:00,164 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 [2018-11-28 12:35:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 12:35:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-28 12:35:00,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-28 12:35:00,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:00,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-28 12:35:00,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:00,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-28 12:35:00,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:00,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2018-11-28 12:35:00,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:35:00,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 27 states and 42 transitions. [2018-11-28 12:35:00,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-28 12:35:00,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-28 12:35:00,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 42 transitions. [2018-11-28 12:35:00,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:35:00,169 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 42 transitions. [2018-11-28 12:35:00,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 42 transitions. [2018-11-28 12:35:00,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2018-11-28 12:35:00,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 12:35:00,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2018-11-28 12:35:00,171 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2018-11-28 12:35:00,171 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2018-11-28 12:35:00,171 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 12:35:00,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 38 transitions. [2018-11-28 12:35:00,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:35:00,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:35:00,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:35:00,173 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 12:35:00,173 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:35:00,173 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 167#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 168#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 164#L23 [2018-11-28 12:35:00,173 INFO L796 eck$LassoCheckResult]: Loop: 164#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 174#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 180#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 164#L23 [2018-11-28 12:35:00,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:00,174 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-28 12:35:00,174 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:00,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:00,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:35:00,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:00,182 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 1 times [2018-11-28 12:35:00,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:00,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:00,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:35:00,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:00,189 INFO L82 PathProgramCache]: Analyzing trace with hash 925834452, now seen corresponding path program 1 times [2018-11-28 12:35:00,189 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:00,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:00,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:35:00,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,221 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:35:00,221 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:35:00,221 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:35:00,222 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:35:00,222 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:35:00,222 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,222 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:35:00,222 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:35:00,222 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 12:35:00,222 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:35:00,222 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:35:00,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,319 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:35:00,319 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:35:00,321 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:00,321 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:00,324 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:00,324 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/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 [2018-11-28 12:35:00,340 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:00,341 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:00,343 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:00,343 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:00,360 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:00,377 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:00,377 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:00,380 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:00,398 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:00,398 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,401 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:00,401 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,420 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:35:00,420 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:00,468 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:35:00,469 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:35:00,470 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:35:00,470 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:35:00,470 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:35:00,470 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:35:00,470 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,470 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:35:00,470 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:35:00,470 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 12:35:00,470 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:35:00,470 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:35:00,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,568 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:35:00,568 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:35:00,568 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 [2018-11-28 12:35:00,569 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,569 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:00,569 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,569 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,569 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,570 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:00,570 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:00,571 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:00,571 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 [2018-11-28 12:35:00,571 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,571 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:00,572 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,572 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,572 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,572 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:00,572 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:00,573 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:00,573 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 [2018-11-28 12:35:00,574 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,574 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:00,574 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,574 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,574 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,574 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:00,575 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:00,575 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:00,576 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 [2018-11-28 12:35:00,576 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,576 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:00,576 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,576 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,576 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,577 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:00,577 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:00,579 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:35:00,581 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:35:00,581 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:35:00,581 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:35:00,581 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:35:00,581 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:35:00,582 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 12:35:00,582 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:35:00,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:00,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:00,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:35:00,610 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 [2018-11-28 12:35:00,610 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20 Second operand 4 states. [2018-11-28 12:35:00,628 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20. Second operand 4 states. Result 54 states and 85 transitions. Complement of second has 7 states. [2018-11-28 12:35:00,628 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 [2018-11-28 12:35:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 12:35:00,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-28 12:35:00,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-28 12:35:00,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:00,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 12:35:00,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:00,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-28 12:35:00,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:00,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 85 transitions. [2018-11-28 12:35:00,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 12:35:00,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 49 states and 78 transitions. [2018-11-28 12:35:00,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-28 12:35:00,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-28 12:35:00,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 78 transitions. [2018-11-28 12:35:00,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:35:00,633 INFO L705 BuchiCegarLoop]: Abstraction has 49 states and 78 transitions. [2018-11-28 12:35:00,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 78 transitions. [2018-11-28 12:35:00,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2018-11-28 12:35:00,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-28 12:35:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2018-11-28 12:35:00,636 INFO L728 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2018-11-28 12:35:00,636 INFO L608 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2018-11-28 12:35:00,636 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 12:35:00,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 76 transitions. [2018-11-28 12:35:00,637 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 12:35:00,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:35:00,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:35:00,637 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2018-11-28 12:35:00,637 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:35:00,638 INFO L794 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 283#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 284#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 289#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 318#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 299#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 293#L23 [2018-11-28 12:35:00,638 INFO L796 eck$LassoCheckResult]: Loop: 293#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 294#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 314#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 293#L23 [2018-11-28 12:35:00,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:00,638 INFO L82 PathProgramCache]: Analyzing trace with hash 925832530, now seen corresponding path program 2 times [2018-11-28 12:35:00,638 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:00,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:00,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:35:00,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:00,648 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 2 times [2018-11-28 12:35:00,648 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:00,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:00,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,650 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:35:00,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:00,655 INFO L82 PathProgramCache]: Analyzing trace with hash -803054137, now seen corresponding path program 1 times [2018-11-28 12:35:00,655 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:00,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:00,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,656 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:35:00,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:00,685 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:35:00,685 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:35:00,685 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:35:00,685 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:35:00,686 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:35:00,686 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,686 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:35:00,686 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:35:00,686 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 12:35:00,686 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:35:00,686 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:35:00,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,759 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:35:00,759 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,762 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:00,762 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:00,765 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:00,765 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,780 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:00,780 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:00,783 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:00,783 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Honda state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,798 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:00,799 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:00,813 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:00,813 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,817 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:00,817 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:00,831 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:00,832 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,835 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:00,835 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,866 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:35:00,866 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:00,908 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:35:00,910 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:35:00,910 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:35:00,910 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:35:00,910 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:35:00,910 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:35:00,910 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:00,910 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:35:00,910 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:35:00,910 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 12:35:00,910 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:35:00,910 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:35:00,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:00,957 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:35:00,957 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:35:00,957 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 [2018-11-28 12:35:00,958 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,958 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:00,958 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,958 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,958 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,958 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:00,958 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:00,959 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:00,959 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 [2018-11-28 12:35:00,959 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,959 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:00,960 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,960 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,960 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,960 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:00,960 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:00,961 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:00,961 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 [2018-11-28 12:35:00,961 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:00,961 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:00,962 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:00,962 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:00,962 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:00,962 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:00,962 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:00,964 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:35:00,966 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:35:00,966 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:35:00,966 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:35:00,966 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:35:00,966 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:35:00,966 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 12:35:00,967 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:35:00,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:00,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:00,989 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:00,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:35:00,998 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 [2018-11-28 12:35:00,998 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-11-28 12:35:01,012 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 65 states and 102 transitions. Complement of second has 7 states. [2018-11-28 12:35:01,014 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 [2018-11-28 12:35:01,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 12:35:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-28 12:35:01,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 12:35:01,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,015 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 12:35:01,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,031 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:35:01,042 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 [2018-11-28 12:35:01,042 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-11-28 12:35:01,057 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 60 states and 95 transitions. Complement of second has 7 states. [2018-11-28 12:35:01,057 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 [2018-11-28 12:35:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 12:35:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-11-28 12:35:01,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 12:35:01,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,058 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 12:35:01,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:35:01,090 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 [2018-11-28 12:35:01,090 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-11-28 12:35:01,101 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 88 states and 137 transitions. Complement of second has 9 states. [2018-11-28 12:35:01,101 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 [2018-11-28 12:35:01,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 12:35:01,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-28 12:35:01,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 12:35:01,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 12:35:01,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-28 12:35:01,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 137 transitions. [2018-11-28 12:35:01,105 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2018-11-28 12:35:01,106 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 66 states and 103 transitions. [2018-11-28 12:35:01,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-11-28 12:35:01,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-28 12:35:01,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 103 transitions. [2018-11-28 12:35:01,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:35:01,106 INFO L705 BuchiCegarLoop]: Abstraction has 66 states and 103 transitions. [2018-11-28 12:35:01,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 103 transitions. [2018-11-28 12:35:01,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 38. [2018-11-28 12:35:01,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 12:35:01,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2018-11-28 12:35:01,108 INFO L728 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2018-11-28 12:35:01,108 INFO L608 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2018-11-28 12:35:01,108 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 12:35:01,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 61 transitions. [2018-11-28 12:35:01,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 12:35:01,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:35:01,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:35:01,109 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-28 12:35:01,109 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 12:35:01,109 INFO L794 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 676#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 677#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 682#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 683#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 706#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 672#L23-2 [2018-11-28 12:35:01,109 INFO L796 eck$LassoCheckResult]: Loop: 672#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 671#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 672#L23-2 [2018-11-28 12:35:01,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,109 INFO L82 PathProgramCache]: Analyzing trace with hash 925834450, now seen corresponding path program 1 times [2018-11-28 12:35:01,109 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:01,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:01,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:35:01,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-11-28 12:35:01,115 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:01,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:01,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:35:01,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,119 INFO L82 PathProgramCache]: Analyzing trace with hash 668676501, now seen corresponding path program 2 times [2018-11-28 12:35:01,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:01,120 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:01,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,120 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:35:01,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,143 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:35:01,143 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:35:01,144 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:35:01,144 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:35:01,144 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:35:01,144 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,144 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:35:01,144 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:35:01,144 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-28 12:35:01,144 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:35:01,144 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:35:01,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,185 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:35:01,185 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,188 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:01,188 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:01,203 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:01,203 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,206 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:01,206 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:01,221 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:01,221 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,224 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:01,224 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:01,238 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:01,238 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,242 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:01,242 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:01,244 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:01,244 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,259 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:01,259 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,277 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:35:01,277 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:01,293 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:35:01,295 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:35:01,295 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:35:01,295 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:35:01,295 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:35:01,295 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:35:01,295 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,295 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:35:01,295 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:35:01,295 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-28 12:35:01,295 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:35:01,295 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:35:01,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,327 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:35:01,327 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:35:01,327 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 [2018-11-28 12:35:01,328 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:01,328 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:01,328 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:01,328 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:01,329 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:35:01,329 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:35:01,331 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:01,331 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 [2018-11-28 12:35:01,331 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:01,331 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:01,331 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:01,332 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:01,332 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:01,332 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:01,332 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:01,333 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:01,333 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 [2018-11-28 12:35:01,333 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:01,334 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:01,334 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:01,334 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:01,335 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:35:01,335 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:35:01,337 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:01,337 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 [2018-11-28 12:35:01,338 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:01,338 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:01,338 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:01,338 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 12:35:01,338 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:01,339 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 12:35:01,339 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:01,340 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:01,341 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 [2018-11-28 12:35:01,341 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:01,341 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:01,341 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:01,341 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:01,342 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:01,345 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:01,345 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:01,347 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:35:01,349 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:35:01,349 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:35:01,350 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:35:01,350 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:35:01,350 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:35:01,350 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 12:35:01,350 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:35:01,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,371 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:35:01,375 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 [2018-11-28 12:35:01,375 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30 Second operand 3 states. [2018-11-28 12:35:01,383 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30. Second operand 3 states. Result 100 states and 153 transitions. Complement of second has 5 states. [2018-11-28 12:35:01,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 12:35:01,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 12:35:01,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 12:35:01,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 12:35:01,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 12:35:01,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-28 12:35:01,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 153 transitions. [2018-11-28 12:35:01,386 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 12:35:01,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 82 states and 129 transitions. [2018-11-28 12:35:01,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-28 12:35:01,387 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-28 12:35:01,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 129 transitions. [2018-11-28 12:35:01,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:35:01,387 INFO L705 BuchiCegarLoop]: Abstraction has 82 states and 129 transitions. [2018-11-28 12:35:01,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 129 transitions. [2018-11-28 12:35:01,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2018-11-28 12:35:01,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-28 12:35:01,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 111 transitions. [2018-11-28 12:35:01,391 INFO L728 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2018-11-28 12:35:01,391 INFO L608 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2018-11-28 12:35:01,391 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 12:35:01,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 111 transitions. [2018-11-28 12:35:01,392 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 12:35:01,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:35:01,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:35:01,393 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2018-11-28 12:35:01,393 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 12:35:01,393 INFO L794 eck$LassoCheckResult]: Stem: 863#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 864#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 898#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 910#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 860#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 870#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 890#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 886#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 877#L23-2 [2018-11-28 12:35:01,393 INFO L796 eck$LassoCheckResult]: Loop: 877#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 876#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 877#L23-2 [2018-11-28 12:35:01,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,393 INFO L82 PathProgramCache]: Analyzing trace with hash 602338671, now seen corresponding path program 3 times [2018-11-28 12:35:01,393 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:01,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:01,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,395 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:35:01,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-11-28 12:35:01,401 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:01,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:01,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,402 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:35:01,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,404 INFO L82 PathProgramCache]: Analyzing trace with hash -973121806, now seen corresponding path program 4 times [2018-11-28 12:35:01,404 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:35:01,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:35:01,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,405 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:35:01,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:35:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:35:01,425 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:35:01,425 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:35:01,425 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:35:01,425 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:35:01,425 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:35:01,425 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,425 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:35:01,425 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:35:01,425 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-28 12:35:01,425 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:35:01,425 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:35:01,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,473 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:35:01,474 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,476 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:01,476 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:01,491 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:01,491 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,494 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:01,494 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:01,509 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:01,509 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,512 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:01,512 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:01,527 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:01,527 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,530 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:01,530 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:01,532 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:35:01,533 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,548 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:35:01,548 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f998128f-70d5-46c3-ac6f-b813b3fadc10/bin-2019/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:35:01,565 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:35:01,580 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:35:01,582 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:35:01,582 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:35:01,582 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:35:01,582 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:35:01,582 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:35:01,582 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:35:01,582 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:35:01,582 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:35:01,582 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-28 12:35:01,582 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:35:01,582 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:35:01,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:35:01,613 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:35:01,614 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:35:01,614 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 [2018-11-28 12:35:01,614 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:01,614 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:01,614 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:01,615 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:01,615 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:01,615 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:01,615 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:01,615 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:01,615 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 [2018-11-28 12:35:01,616 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:01,616 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:01,616 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:01,616 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:01,616 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:35:01,616 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:35:01,618 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:01,618 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 [2018-11-28 12:35:01,619 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:01,619 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:01,619 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:01,619 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 12:35:01,619 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:01,619 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 12:35:01,620 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:01,621 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:35:01,621 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 [2018-11-28 12:35:01,622 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:35:01,622 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:35:01,622 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:35:01,622 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:35:01,622 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:35:01,622 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:35:01,623 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:35:01,624 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:35:01,625 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:35:01,625 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:35:01,626 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:35:01,626 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:35:01,626 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:35:01,626 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 12:35:01,626 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:35:01,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,643 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:35:01,649 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 [2018-11-28 12:35:01,649 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-11-28 12:35:01,659 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 109 states and 164 transitions. Complement of second has 5 states. [2018-11-28 12:35:01,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 12:35:01,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 12:35:01,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 12:35:01,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 12:35:01,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,661 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 12:35:01,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:35:01,682 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 12:35:01,682 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-11-28 12:35:01,688 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 109 states and 164 transitions. Complement of second has 5 states. [2018-11-28 12:35:01,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 12:35:01,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 12:35:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 12:35:01,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 12:35:01,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,688 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 12:35:01,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,698 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:01,702 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:01,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:35:01,707 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 2 loop predicates [2018-11-28 12:35:01,708 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-11-28 12:35:01,716 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 125 states and 192 transitions. Complement of second has 4 states. [2018-11-28 12:35:01,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 12:35:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 12:35:01,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-28 12:35:01,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 12:35:01,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-28 12:35:01,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-28 12:35:01,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:35:01,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 192 transitions. [2018-11-28 12:35:01,718 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:35:01,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 0 states and 0 transitions. [2018-11-28 12:35:01,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 12:35:01,719 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 12:35:01,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 12:35:01,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:35:01,719 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:35:01,719 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:35:01,719 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:35:01,719 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-28 12:35:01,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:35:01,719 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:35:01,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 12:35:01,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:35:01 BoogieIcfgContainer [2018-11-28 12:35:01,723 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:35:01,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:35:01,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:35:01,724 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:35:01,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:34:59" (3/4) ... [2018-11-28 12:35:01,726 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:35:01,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:35:01,727 INFO L168 Benchmark]: Toolchain (without parser) took 3006.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.2 MB). Free memory was 957.6 MB in the beginning and 978.0 MB in the end (delta: -20.4 MB). Peak memory consumption was 188.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:35:01,728 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:35:01,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.14 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 946.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:35:01,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.95 ms. Allocated memory is still 1.0 GB. Free memory is still 946.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:35:01,729 INFO L168 Benchmark]: Boogie Preprocessor took 12.66 ms. Allocated memory is still 1.0 GB. Free memory is still 946.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:35:01,729 INFO L168 Benchmark]: RCFGBuilder took 150.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 944.0 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:35:01,729 INFO L168 Benchmark]: BuchiAutomizer took 2683.76 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 978.0 MB in the end (delta: 133.0 MB). Peak memory consumption was 211.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:35:01,730 INFO L168 Benchmark]: Witness Printer took 2.79 ms. Allocated memory is still 1.2 GB. Free memory is still 978.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:35:01,732 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.14 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 946.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.95 ms. Allocated memory is still 1.0 GB. Free memory is still 946.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.66 ms. Allocated memory is still 1.0 GB. Free memory is still 946.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 150.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 944.0 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2683.76 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 978.0 MB in the end (delta: 133.0 MB). Peak memory consumption was 211.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.79 ms. Allocated memory is still 1.2 GB. Free memory is still 978.0 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 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function z and consists of 4 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 48 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 35 SDs, 0 SdLazy, 76 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax153 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 21 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...